HomeMy WebLinkAboutHoonah_RD8HEAT_9.18 with signature and attachmentsRenewable Energy Fund Round VIII
Grant Application – Heat Projects
AEA 15003 Page 1 of 30 7/2/14
Application Forms and Instructions
This instruction page and the following grant application constitutes the Grant Application Form for
Round VIII of the Renewable Energy Fund Heat Projects only. If your application is for energy
projects that will not primarily produce heat, please use the standard application form (see RFA
section 1.5). An electronic version of the Request for Applications (RFA) and both application
forms are available online at: www.akenergyauthority.org/REFund8.html.
If you need technical assistance filling out this application, please contact Shawn Calfa, the
Alaska Energy Authority Grants Administrator at (907) 771-3031 or at scalfa@aidea.org.
If you are applying for grants for more than one project, provide separate application forms
for each project.
Multiple phases for the same project may be submitted as one application.
If you are applying for grant funding for more than one ph ase of a project, provide
milestones and budget for each phase of the project.
In order to ensure that grants provide sufficient benefit to the public, AEA may limit
recommendations for grants to preliminary development phases in accordance with 3 ACC
107.605(1).
If some work has already been completed on your project and you are requesting funding
for an advanced phase, submit information sufficient to demonstrate that the preceding
phases are completed and funding for an advanced phase is warranted .
If you have additional information or reports you would like the Authority to consider in
reviewing your application, either provide an electronic version of the document with your
submission or reference a web link where it can be downloaded or reviewed.
In the sections below, please enter responses in the spaces provided, often under the
section heading. You may add additional rows or space to the form to provide sufficient
space for the information, or attach additional sheets if needed.
REMINDER:
Alaska Energy Authority is subject to the Public Records Act AS 40.25, and materials
submitted to the Authority may be subject to disclosure requirements under the act if no
statutory exemptions apply.
All applications received will be posted on the Authority web site after final
recommendations are made to the legislature.
In accordance with 3 AAC 107.630 (b) Applicants may request trade secrets or proprietary
company data be kept confidential subject to review and approval by the Authority. If you
want information to be kept confidential the applicant must:
o Request the information be kept confidential.
o Clearly identify the information that is the trade secret or proprietary in their
application.
o Receive concurrence from the Authority that the information will be kept confidential.
If the Authority determines it is not confidential it will be treated as a public record in
accordance with AS 40.25 or returned to the applicant upon request.
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Grant Application – Heat Projects
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SECTION 1 – APPLICANT INFORMATION
Name (Name of utility, IPP, or government entity submitting proposal)
Hoonah Indian Association
Type of Entity: Federally Recognized Tribe Fiscal Year End: September 30
Tax ID #
Tax Status: ☐ For-profit ☐ Non-profit ☒ Government (check one)
Date of last financial statement audit: June 2014 for FY13 (Oct 1, 2012 - Sept 30, 2013)
Mailing Address: Physical Address:
Hoonah Indian Association Hoonah Indian Association
PO Box 602 366 Garteeni Highway
Hoonah AK 99829 Hoonah AK 99829
Telephone: Fax: Email:
907-945-3703 907-945-3703 rstarbard@hiatribe.org
1.1 APPLICANT POINT OF CONTACT / GRANTS MANAGER
Name: Robert Starbard Title: Tribal Administrator
Mailing Address:
Hoonah Indian Association
PO Box 602
Hoonah AK 99829
Telephone: Fax: Email:
907-945-3703 907-945-3703 rstarbard@hiatribe.org
1.1.1 APPLICANT ALTERNATE POINTS OF CONTACT
Name Telephone: Fax: Email:
David See 907-945-3545 907-945-3703 dsee@hiatribe.org
George Rutherford 907-945-3545 907-945-3703 grutherford@hiatribe.org
1.2 APPLICANT MINIMUM REQUIREMENTS
Please check as appropriate. If you do not to meet the minimum applicant requirements, your
application will be rejected.
1.2.1 As an Applicant, we are: (put an X in the appropriate box)
☐ An electric utility holding a certificate of public convenience and necessity under AS 42.05, or
☐ An independent power producer in accordance with 3 AAC 107.695 (a) (1), or
☐ A local government, or
☒ A governmental entity (which includes triba l councils and housing authorities)
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Grant Application – Heat Projects
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1.2 APPLICANT MINIMUM REQUIREMENTS (continued)
Please check as appropriate.
☒ 1.2.2 Attached to this application is formal approval and endorsement for the project by the
applicant’s board of directors, executive manage ment, or other governing authority. If the
applicant is a collaborative grouping, a formal approval from each participant’s governing
authority is necessary. (Indicate by checking the box)
☒ 1.2.3 As an applicant, we have administrative and financial ma nagement systems and follow
procurement standards that comply with the standards set forth in the grant agreement
(Section 3 of the RFA). (Indicate by checking the box)
☒ 1.2.4 If awarded the grant, we can comply with all terms and conditions of the awa rd as
identified in the Standard Grant Agreement template at
http://www.akenergyauthority.org/vREFund8.html. (Any exceptions should be clearly noted
and submitted with the application.) (Indicate by checking the box)
☒ 1.2.5 We intend to own and operate any project that may be constructed with grant funds for
the benefit of the general public. If no please describe the nature of the project and who will
be the primary beneficiaries. (Indicate yes by checking the box)
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Grant Application – Heat Projects
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SECTION 2 – PROJECT SUMMARY
This section is intended to be no more than a 2 -3 page overview of your project.
2.1 Project Title – (Provide a 4 to 7 word title for your project). Type in space below.
Hoonah Biomass District Heating Loop
2.2 Project Location –
Include the physical location of your project and name(s) of the community or communities that will
benefit from your project in the subsections below.
2.2.1 Location of Project – Latitude and longitude, street address, or community name.
Latitude and longitude coordinates may be obta ined from Google Maps by finding you project’s
location on the map and then right clicking with the mouse and selecting “What is here? The
coordinates will be displayed in the Google search window above the map in a format as follows:
61.195676.-149.898663. If you would like assistance obtaining this information please contact
AEA at 907-771-3031.
Hoonah Alaska
2.2.2 Community benefiting – Name(s) of the community or communities that will be the
beneficiaries of the project.
Hoonah Alaska
2.3 PROJECT TYPE
Put X in boxes as appropriate
2.3.1 Renewable Resource Type
☐ Wind to Heat ☒ Biomass or Biofuels
☐ Hydro to Heat ☐ Solar Thermal
☐ Heat Recovery from Existing Sources ☐ Heat Pumps
☐ Other (Describe) ☐
2.3.2 Proposed Grant Funded Phase(s) for this Request (Check all that apply)
Pre-Construction Construction
☐ Reconnaissance ☐ Final Design and Permitting
☒ Feasibility and Conceptual Design ☐ Construction
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2.4 PROJECT DESCRIPTION
Provide a brief one paragraph description of the proposed heat project.
Hoonah Indian Association requests funding to evaluate the technical and financial feasibility for a
district biomass heating system for the following buildings: Hoonah School (possibly including
pool), Hoonah School Auto Shop/Carving Shed, Hoonah Boys and Girls Club, Hoonah Indian
Associatio n Cookhouse, Headstart Building, Hoonah City Hall and a large privately-owned
commercial building containing apartments, a laundry mat and a thrift store. Hoonah Indian
Asociation is pursuing the construction of a community Greenhouse to be located and op erated in
conjunction with the community garden that was initiated two (2) years ago. It is proposed that the
district heat loop would incorporate this facility as well.
HIA plans to own, maintain and operate the proposed district heat loop system as a not-for-profit
heat utility. HIA is open to alternative ownership models as may be determined appropriate and
desirable through the proposed feasibility planning process. HIA has the enthusiastic support of all
of the identified involved parties.
The best location can be identified during the feasibility study process.
2.5 PROJECT BENEFIT
Briefly discuss the financial and public benefits that will result from this heat project, (such as
reduced fuel costs, lower energy costs, local jobs created, etc.)
This project will be a benefit to the community of Hoonah as well as provide valuable information to
other rural areas in Southeast Alaska. Like many rural villages, Hoonah relies heavily on fuel oil to
meet its heating needs and drastic increases in cost over the past decade have negatively
impacted the quality of life for many residents. The community has identified woody biomass as a
potential means to a more affordable and sustainable energy portfolio.
This project is an example of good collaboration efforts among community organizations in an
effort to provide low cost heating that will benefit the entire community. Hoonah Indian Association
and the City have been communicating with the U.S. Forest Service and believe there is an
opportunity to encourage local economic development with a biomass resource, including cord,
chips or pellets.
Financial and public benefits include:
Fuel Displacement: Currently, a reliable estimate of the gallons of fuel per year to be displaced by
this project in this high cost community, is difficult to determine as records of actual amounts used
have been more difficult to obtain than has been gathering the dollar amounts expended. Our best
estimate from the records provided by the collaborating entities project the system would displace
between 11,000 and 32,000 gallons of heating fuel annually depending upon the footprint of the
system and depth of integration into the Hoonah City Schools heat distribution system the heat
loop is carried to. Ultimately, the fuel displacement question is one which we are hopeful the
feasibility study will help determine. Any displacement of diesel by local resources will mean more
money stays in the community that would otherwise be used to purchase heating oil .
Price Stability: Like most fossil fuels, the cost of diesel oil is on the rise and extremely volatile.
Local or regional renewable resources offer price stability. Since 2000, diesel prices in Hoonah
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have increased 300%. The cost to heat the Hoonah school buildings, in and by themselves. have
ranged from 96,000 to $213,000 over the past five years, making planning challenging .
Environmental Benefits: Through effective planning and sustainable harvest, Hoonah can
provide a carbon neutral fuel source and improved fore st health.
Local Employment: HIA is developing a strategy to act as the main supplier of wood fuel for local
biomass boilers. This would include harvest, processing, seasoning if necessary, storage, deliver,
and even operations and maintenance. HIA is currently seeking assistance to develop this
business plan. HIA is also interested using sawmill residue and by -products from the local mills,
which would increase their revenue . The U.S.F.S. Hoonah Ranger District Ranger Station is
interested in installing biomass boiler on its campus and supports HIA’s efforts to develop a
business model around biomass supply.
Hoonah Indian Association has for the last two years lead local workforce development efforts
addressing the biomass supply of the equation . These efforts have resulted in the addition of eight
(8) full-time seasonal silvicultural positions working contracted stand improvement activities on
USFS, Sealaska and Huna Totemover the last two years. An additional three(3) part-time
seasonal positions cutting splitting and stacking cord wood have been created by Hoonah Indian
Association to provide dry seasoned cordwood to the community at a cost close to the expense of
production.
Educational and Marketing Opportunities: A greenhouse included in the system would provide
opportunities for the school and the community to learn about local food production. HIA is
learning from the examples at Southeast Island School District in Coffman Cove and Thorne Bay
and hope to create similar opportunities in Hoonah, including selling fresh produce in town.
Positive Momentum Towards Self-Sufficiency: Hoonah Indian Association, the City of Hoonah,
Huna Totem Corp., the US Forest Service Hoonah Ranger District, and others are working
together to develop solutions to the high energy costs in Hoonah. This feasibility study is the next
step in community education and will provide valuable information and direction as Hoonah
continues its energy planning and project efforts.
2.6 PROJECT BUDGET OVERVIEW
Briefly discuss the amount of funds needed, the anticipated sources of funds, and the nature and
source of other contributions to the project.
The estimated cost of this project is $45,000.00 for professional consultant services to evaluate the
technical and financial feasibility of integrating renewable energy systems, energy modeling of
various biomass fuels for the proposed buildings, a district heat system with an option to tie into the
current loop using waste heat from the electric plant, analysis of wood and sawmill residue
availability and delivered cost to biomass system, and cost of pellet purchase. This should also
include an assessment of integrating biomass into buildings’ current heating system, including
energy efficiency updates like baseboard improvements to improve the efficiency of the system,
and the option to build a greenhouse, which will use excess heat in the shoulder seasons, ideally
at the community garden hosted by Hoonah Indian Asso ciation on their centrally located property
The sources of funds include – in kind and expertise (SSP). HIA will provide all administrative
support necessary to complete the project, including grant administration and project management.
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Additionally, the Sustainable Southeast Partnership will continue to provide support in the form of
technical assistance and facilitation with other projects. – Check with Bob C. Add USFS, the City,
Huna Totem – will they provide any in kind support?
In the case that the project is determined to be economically and sustainably viable, HIA has
funding that can be used as a cash match for a permitting and design or construction Renewable
Energy Grant Fund application in the future.
2.7 COST AND BENEFIT SUMARY
Summarize the grant request and the project’s total costs and benefits below.
Costs for the Current Phase Covered by this Grant
(Summary of funds requested)
2.7.1 Grant Funds Requested in this application $ 45,000
2.7.2 Cash match to be provided $
2.7.3 In-kind match to be provided $ 10,000
2.7.4 Other grant funds to be provided $
2.7.5 Total Costs for Requested Phase of Project (sum of 2.7.1 through 2.7.4) $ 55,000
Other items for consideration
2.7.6 Other grant applications not yet approved $ Alaska Wood Energy
Development Task
Group
2.7.7 Biomass or Biofuel Inventory on hand $ 20,000.00
2.7.8 Energy efficiency improvements to buildings
to be heated (upgraded within the past 5 years or
committed prior to proposed project completion) $
Project Costs & Benefits
(Summary of total project costs including work to date and future cost estimates to get to a fully
operational project)
2.7.9 Total Project Cost
Summary from Cost Worksheet, Section 4.4.4, including
estimates through construction.
$ To be assessed through
study
2.7.10 Additional Performance Monitoring Equipment not
covered by the project but required for the Grant
Only applicable to construction phase projects
$ NA
2.7.11 Estimated Direct Financial Benefit (Savings)
The economic model used by AEA is available at
www.akenergyauthority.org/REFund8.html. This
economic model may be used by applicants but is not
$ To be assessed through
study
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required. Other economic models developed by the
applicant may be used, however the final benefit/cost
ratio used will be derived from the AEA model to
ensure a level playing field for all applicants .
2.7.12 Other Public Benefit
If you can calculate the benefit in terms of dollars please
provide that number here and explain how you
calculated that number in Section 5 below.
- Jobs
- money circulating in
local economy?
SECTION 3 – PROJECT MANAGEMENT PLAN
Describe who will be responsible for managing the project and provide a plan for successfully
completing the project within the scope, schedule and budget proposed in the application .
3.1 Project Manager
Tell us who will be managing the project for the Grantee and include contact information, a resume
and references for the manager(s). In the electronic submittal, please submit resumes as separate
PDFs if the applicant would like those excluded from the web posting of this application. If the
applicant does not have a project manager indicate how you intend to so licit project management
support. If the applicant anticipates project management assistance from AEA or another
government entity, state that in this section.
Robert Starbard, Tribal Administrator/CEO for Hoonah Indian Association will oversee the
execution of this grant. See Appendix A for resume and contact information.
Upon award, HIA will reach out to AEA Biomass Project Manager, Devany Plentovich, to solicit
project support.
HIA is also applying for assistance from the Alaska Wood Energy Develo pment Task Group to
assess this project, including a resource assessment.
HIA is also applying for technical assistance through the Department of Energy’s Office of Indian
Energy. This program provides up to 40 hours of tec hnical assistance each year to tribal entities
for free.
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3.2 Project Schedule and Milestones
Please fill out the schedule below. Be sure to identify key tasks and decision points in your project
along with estimated start and end dates for each of the milestones and tasks . Please clearly
identify the beginning and ending of all phases of your proposed project.
Please fill out form provided below. You may add additional rows as needed .
Milestones Tasks Start
Date End Date
1. Finalize award documents Provide all necessary documents to AEA 7/1/15 7/30/15
2. Partner coordination and
project scoping
HIA will facilitate communications with AEA, DOE,
REAP, and other regional partners to outline the scope of
work under the contract
7/31/15 8/31/15
3. MOU with project partners
Complete an MOU with the building owners, including
Hoonah Indian Association, Hoonah School District, the
City of Hoonah and Christian Werner, to convey that all
are partners of this feasibility study and committed to
sharing energy bills and information and working together.
7/31/15 8/31/15
4. Heating data update Review and update facility heating data provided by
affected building owners 7/31/15 8/20/15
5. Solicit proposals
Solicit proposals from qualified firms for detailed energy
assessment, including facility review, cost estimate and
economic analysis. Negotiate contract.
9/1/15 9/31/15
6. Local and regional resource
assessment
HIA is applying to the Alaska Wood Energy Development
Task Group for feasibility. If awarded, HIA expects this
milestone will be n early complete by this time. If not, HIA
will receive assistance from the U.S. Forest Service,
Hoonah and Regional Offices and will attempt to complete
the work in connection with its collaborative work with the
Regional ANCSA Corporation, Sealaska, and the local
ANCSA Corporation, Huna Totem to develop a
comprehensive land and resource use management plan for
the native owned lands in and around the community.
9/1/15 1/15/16
7. Award contract Evaluate proposals, recommend award to HIA tribal
council and issue Notice to Proceed 10/1/15 10/15/15
8. Site Visit
Meet with contractor, inspect buildings and assess current
heating systems to determine steps to integrate with
alternative biofuels, specify objectives, and provide
necessary information. Contractor should include
assessment of the plan for HIA to create a biomass
business by supplying local wood, including harvest,
chipping, pelletizing or cutting, seasoning if necessary,
delivering and boiler operation and maintenance (O&M)
services.
11/1/15 11/14/15
9. Preliminary Report Review draft report and provide comments 2/9/16 2/19/16
10. Final Report
Contractor incorporates comments and presents final
report, including recommended next steps and conceptual
design best reflecting Hoonah’s energy, natural r esource,
and economic goals.
2/21/16 3/18/16
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3.3 Project Resources
Describe the personnel, contractors, personnel or firms, equipment, and services you will use to
accomplish the project. Include any partnerships or commitments with other entities you have or
anticipate will be needed to complete your project. Describe any existing contracts and the
selection process you may use for major equipment purchases or contracts. Include brief resumes
and references for known, key personnel, contractors, and suppliers as an attachment to your
application.
In addition to HIA’s staffing, several partnerships will be incorporated, which will be instrumental
in successfully carrying out the proposed project. These include established relationships and
working alliances with staff from the City, Hoonah School District, Huna Totem, Sealaska,
Department of Energy Office of Indian Energy-Alaska, Icy Strait Point, Inside Passage Electric Utility,
Southeast Conference, U.S. Forest Service’s Hoonah Ranger district and regional office, Hoonah
Economic Development Committee, the Sustainable Southeast Partnership, and others from around
our region and state.
HIA Primary Support Staff:
As noted in section 3.1, Bob Starbard will act as the project manager. He will be responsible for all
grant administration, and will oversee the project and ensure milestones, timelines and reporting
requirements are adhered to. He will be the point of contact for AEA on the project. Resume attached.
Other Project Support Staff:
Bob Christensen, Program Coordinator and Natural Resources Regional Catalyst for the Sustainable
Southeast Partnership, has devoted time and support in developing the idea of HIA as a local biofuel
supplier. Mr. Christensen will continue to provide support, including expertise on local wood
resources.
Shaina Kilcoyne, Regional Energy Catalyst for the Sustainable Southeast Partnership (SSP), has already
devoted time and expertise to move this project forward. She expects to be able to continue this support
through the SSP if the grant is funded, including facilitating communication, coordinating efforts, and
providing research support.
3.4 Project Communications
Discuss how you plan to monitor the project and keep the Authority informed of the status. Please
provide an alternative contact person and their contact information.
David See, Director of Community Development at Hoonah Indian Association, will be in regular
communication with the contractor and will provide progress updates via email to the Alaska
Energy Authority as per the agreed timeline . Resume is attached as addendum.
George Rutherford, Transportation Planner at Hoonah Indian Association, will act as the alternative
contact for communications. Resume is attached as addendum.
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3.5 Project Risk
Discuss potential problems and how you would address them.
HIA sees no risk in completing a feasibility study and design for this project. At this time, HIA also
sees no risk through the construction of a biomass district heat loop. It is our hope that the
feasibility study will bring to light any associated risks.
3.6 Project Accountant(s)
Tell us who will be performing the accounting of this Project for the Grantee and include contact
information, a resume and references for the project accountan t(s). In the electronic submittal,
please submit resumes as separate PDFs if the applicant would like those excluded from the web
posting of this application. If the applicant does not have a project accountant indicate how you
intend to solicit project accounting support.
Lisa Taylor, C.P.A. & Associates will perform the accounting of this project for HIA. See
attachments for her resume and references. She has 7 years of experience with HIA.
3.7 Financial Accounting System
Discuss the accounting system that will be used to account for project costs and who will be the
primary user of the accounting system.
Mary Cook, Accounting Technician for HIA, under the direction of Lisa Taylor CPA will perform the
daily accounting functions associated with this project. The accounting software “Quickbooks,
Enterprise Edition” will be used to account for project costs.
3.8 Financial Management Controls
Discuss the controls that will be utilized to ensure that only costs that are reasonable, ordinary and
necessary will be allocated to this project. Also discuss the controls in place that will ensur e that
no expenses for overhead, or any other unallowable costs will be requested for reimbursement
from the Renewable Energy Fund Grant Program.
See attachment “Significant Accounting Policies” for a summary of the applicable Financial
controls in place with the tribe to be utilized to ensure that only costs that are reasonable, ordinary
and necessary will be allocated to this project.
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SECTION 4 – PROJECT DESCRIPTION AND TASKS
The level of information will vary according to phase(s) of the project you propose to undertake
with grant funds.
If some work has already been completed on the project and the funding request is for an
advanced phase, submit information sufficient to demonstrate that the preceding phases are
satisfied and funding for an advanced phase is warranted.
4.1 Proposed Energy Resource
Describe the potential extent/amou nt of the energy resource that is available.
Discuss the pros and cons of your proposed energy resource vs. other alternatives that may be
available, in the market, to be served by your project. For pre -construction applications, describe
the resource to the extent known. For design and permitting or construction projects, please
provide feasibility documents, design documents, and permitting documents (if applicable) as
attachments to this application.
One of the milestones in this proposal is to comple te a feasibility study on the local and regional
resource assessment to determine the extent of woody biomass in Hoonah. HIA is hoping for a
feasibility grant from the Alaska Wood Energy Development Task Group. If this is awarded, HIA
expects that the wood resource feasibility could be completed before next fall . If this is not
awarded, HIA will complete a resource assessment as a part of this grant.
Potential wood fuel supplies in Hoonah are fairly abundant. There is one fairly large, full-time
sawmill operation (Icy Straits Lumber & Milling). A second active mill in town also produces waste
wood that may be useful for fuel.
More substantially, there are over 30,000 acres of young -growth, much of which will require
thinning for timber and wildlife outcomes. Thinning these stands will produce large quantities of
slash and small diameter wood. Economically removing this material from the woods would be
challenging, but it is likely that at least the material near the road will be accessible for bio mass
heating.
Additionally, there are several thousand acres of old -growth forest that is not suitable for timber
production, but could potentially be utilized for biomass heating in a sustainable fashion.
HIA leases a 5,000 ft2 shed that is being used to season cord wood. There are currently about 70
cords in the shed. HIA also owns several log splitters, a dozen chain saws, a bobcat, lift trailer and
a diesel truck associated with providing cord wood to the community. HIA also has developed a
silviculture field crew consisting of six (6) individuals who are engaged in a variety of contracted
activities including tree thinning, trail building, habitat restoration, and road maintenance.
The pros of utilizing local woody biomass for a district heat loop include:
1. An estimated 11,000 and 32,000 gallons of diesel fuel would be displaced annually with a
local resource
2. Replacing diesel fuel with woody biomass would keep money in the local economy,
spurring economic activity
3. This project would support the idea for HIA to become a local wood fuel resource supplier,
creating jobs and economic development
4. Money saved by the City, the School and the Tribe will benefit the citizens of Hoonah, as
more money can be shuffled into other public benefit proje cts, such as roads, utilities,
education, and … More specific examples? Does this sound fluffly?
5. Sourced locally in a sustainable way, woody biomass is carbon neutral, and will reduce the
carbon emissions from Hoonah.
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6. District heating has already proven popular and successful in Hoonah with the IPEC waste
heat loop. This project provides an opportunity to build on that system and allow other
entities to take advantage of the efficiency of district heating.
The cons of utilizing woody biomass for a dis trict heat loop vs. maintaining oil boilers include:
1. The expense of installing the system, including any upgrades that the proposed buildings
may need to integrate biomass heat.
2. The time and cost of maintenance of the biomass boiler, including regular stok ing.
3. At this time, there is not a biomass expert in Hoonah. Building managers are familiar with
oil boilers and can readily handle maintenance and operations.
4.1.1 For Biomass Project only
Identify any wood inventory questions, such as:
Ownership/Accessibility. Who owns the land and are their limitations and restrictions to
accessing the biomass resource?
Inventory data. How much biomass is available on an annual basis and what types (species)
are there, if known? Please attach any forest inventory reports
As per the Preliminary Feasibility Assessment for High Efficiency, Low Emission Wood Heating In
Hoonah Alaska study prepared by Daniel Parrent of the Juneau Economic Development Council
for the School: “Wood could come from a variety of land o wnerships, including Huna Totem Corp.,
Sealaska Corp., and the U.S.D.A. Forest Service. Wood fuels in Hoonah currently are most likely
to be in the form of cordwood or large mill resides (slabs, edgings) since there is little demand for
bulk fuels locally. However, bulk fuels could be produced if demand was sufficient to warrant the
investment in the processing equipment.”
US Forest Service Land: Extensive road network provides abundant access to lands. Support
letter attached references publicly owned acreage under USFS Hoonah Ranger District authority.
Huna Totem Co rporation: The local village ANCSA corporation owns approximately 20,000 acres
of timberland accessible from the community through an extensive road network
Sealaska: the Regional ANCSA Corporation owns approximately 28,000 acres with an extensive
road network connecting their timberland acreage around the community .
4.2 Existing Energy System
4.2.1 Basic configuration of Existing Heating Energy System
Briefly discuss the basic configuration of the existing energy system. Include informa tion about the
number, size, age, efficiency, and type of generation.
Hoonah School, Building 1: 2 Kewanee boilers 2,060 MBH (net, each), installed nozzles operate at
max rate of 5.5ghp (each), NB43492-NB43491, 1991 (manufacturer is no longer in business and
repair parts, though still available, are becoming more difficult to obtain. The school is currently on
a waste heat loop from IPEC’s electric generation.
Hoonah Pool, Building 2: 2 Weil McLain boilers H-486 S-W , 378-940710, 1986, IBR rated at 626.1
MBH (net, each)
Boys and Girls Club, Building 4: 2 Ultimate boilers, PFO-5, 1997
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4.2.2 Existing Heating Energy Resources Used
Briefly discuss your understanding of the existing energy resources. Include a brief discussion of
any impact the project may have on existing energy infr astructure and resources.
The project will impact the existing diesel boilers by relegating them to back up boilers.
The feasibility study should show whether t he proposed heating loop should tie in to the existing
waste heat loop from Inside Passage Electric Cooperative (IPEC) accordingly, HIA will coordinate
with IPEC. One of the technical experts providing assistance during the feasibility study is Gray
Stassel Engineering (GSE) which designed the power generation, heat recovery, and fuel projects
in Hoonah, as well as pro vided hydroelectric coordination. GSE is familiar with the existing utility
systems and has offered their assistance. The GSE Profile is attached
4.2.3 Existing Heating Energy Market
Discuss existing energy use and its market. Discuss impacts your project may have on energy
customers.
There are currently two fuel suppliers in Hoonah. The degree to which households blend heating
oil with cord wood is not known to have been measured, and is not a part of the scope of this
project. Impacts of this project on other energy customers within this market are unknown.
The goal for this project is to stabilize heating costs for those involved. Talk about savings for the
school and the city – translating to more funds for other projects and education?
HIA hopes that this project demonstrates a success in the community, and th at others will show
interest in biomass opportunities, further increasing the circulation of capital within the community.
4.3 Proposed System
Include information necessary to describe the system you are intending to develop and address
potential system design, land ownership, permits, and environmental issues.
4.3.1 System Design
Provide the following information for the proposed renewable energy system:
A description of renewable energy technology specific to project location
Optimum installed capacity
Anticipated capacity factor
Anticipated annual generation
Anticipated barriers
Basic integration concept
Delivery methods
TO BE DETERMINED
4.3.2 Land Ownership
Identify potential land ownership issues, including whether site owners have agreed to the proj ect
or how you intend to approach land ownership and access issues.
80% of involved real estate are HIA owned or controlled
City owns 2 buildings and one site, HIA owns majority of site, school owns the rest
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4.3.3 Permits
Provide the following information as it may relate to permitting and how you intend to address
outstanding permit issues.
List of applicable permits
Anticipated permitting timeline
Identif y and discuss potential barriers
Feasibility and design will brin g to light any permitting needs.
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4.3.4 Environmental
Address whether the following environmental and land use issues apply, and if so how they will be
addressed:
Threatened or endangered species
Habitat issues
Wetlands and other protected areas
Archaeological and historical resources
Land development constraints
Telecommunications interference
Aviation considerations
Visual, aesthetics impacts
Identify and discuss other potential barriers
There are no known environme ntal or land use issues at this time.
Feasibility and design bring to light any relevant issues.
4.4 Proposed New System Costs and Projected Revenues
(Total Estimated Costs and Projected Revenues)
The level of cost information provided will vary according to the phase of funding requested and
any previous work the applicant may have done on the project. Applicants must reference the
source of their cost data. For example: Applicant ’s records or analysis, industry standards,
consultant or manufacturer’s estimates.
4.4.1 Project Development Cost
Provide detailed project cost information based on your current knowledge and understanding of
the project. Cost information should include the following:
Total anticipated project cost, and cost for this phase
Requested grant funding
Applicant matching funds – loans, capital contributions, in-kind
Identification of other funding sources
Projected capital cost of proposed renewable energy system
Projected development cost of proposed renewable energy system
Based on conversations with contractors and other project managers in the state, HIA estimates
that this feasibility study will cost approximately $45,000. W ith an additional 10,000 in in-kind costs
incurred by the collaborating partners
* Contractor to complete system and economic assessment:
* Contractor to complete resource assessment:
4.4.2 Project Operating and Maintenance Costs
Include anticipated O&M costs for any new facilities constructed and how these would be funded
by the applicant.
(Note: Operational costs are not eligible for grant funds however grantees are required to meet
ongoing reporting requirements for the purpose of recording the impacts of AEA projects on the
communities they serve.)
Owned and maintained by HIA subsidiary – licensed to operate.
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4.4.3 Heating Purchase/Sale
The heat purchase/sale information should include the following:
Identification of potential energy buyer(s)/customer(s)
Potential heat purchase/sales price - at a minimum indicate a price range
Proposed rate of return from grant-funded project
4.4.4 Project Cost Worksheet
Complete the cost worksheet form which provides summary information that will be considered in
evaluating the project.
Please fill out the form provided below and provide most recent heating fuel invoice that supports
the amount identified in “Project Benefits” subpart b below.
Renewable Energy Source
The Applicant should demonstrate that the renewable energy resource is available on a
sustainable basis.
Annual average resource availability.
Unit depends on project type (e.g. windspeed, hydropower output, biomass fuel)
Existing Energy Generation and Usage
a) Basic configuration (if system is part of the Railbelt 1 grid, leave this section blank)
i. Number of generators/boilers/other 8 buildings with 10 fuel oil boilers
ii. Rated capacity of generators/boilers/other Listed under Section 4.2.1
iii. Generator/boilers/other type Listed under Section 4.2.1
iv. Age of generators/boilers/other Listed under Section 4.2.1
v. Efficiency of generators/boilers/other Unknown
b) Annual O&M cost (if system is part of the Railbelt grid, leave this section blank)
i. Annual O&M cost for labor TBD
ii. Annual O&M cost for non-labor TBD
c) Annual electricity production and fue l usage (fill in as applicable) (if system is part of the
Railbelt grid, leave this section blank)
i. Electricity [kWh]
ii. Fuel usage
Diesel [gal]
Other
iii. Peak Load
iv. Average Load
1 The Railbelt grid connects all customers of Chugach Electric Association, Homer Electric Association, Golden Valley Electric
Association, the City of Seward Electric Department, Matanuska Electric Association and Anchorage Municipal Light and Power.
Renewable Energy Fund Round VIII
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AEA 15003 Page 18 of 30 7/2/14
v. Minimum Load
vi. Efficiency
vii. Future trends
d) Annual heating fuel usage (fill in as applicable)
i. Diesel [gal or MMBtu]
ii. Electricity [kWh]
iii. Propane [gal or MMBtu]
iv. Coal [tons or MMBtu]
v. Wood [cords, green tons, dry tons]
vi. Other
Proposed System Design Capacity and Fuel Usage
(Include any projections for continued use of non -renewable fuels)
a) Proposed renewable capacity
(Wind, Hydro, Biomass, other)
[kW or MMBtu/hr]
Biomass
b) Proposed annual electricity or heat production (fill in as applicable)
i. Electricity [kWh]
ii. Heat [MMBtu]
c) Proposed annual fuel usage (fill in as applicable)
i. Propane [gal or MMBtu]
ii. Coal [tons or MMBtu]
iii. Wood or pellets [cords, green tons,
dry tons]
iv. Other
Project Cost
a) Total capital cost of new system NA
b) Development cost NA
c) Annual O&M cost of new system NA
d) Annual fuel cost NA
Project Benefits
a) Amount of fuel displaced for
i. Electricity
ii. Heat
Renewable Energy Fund Round VIII
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iii. Transportation
b) Current price of displaced fuel $4.54/gallon according to the Alaska Energy Data
Gateway
c) Other economic benefits Spurring local economic development if using local
fuels
d) Alaska public benefits Savings to the Department of Energy?
Heat Purchase/Sales Price
a) Price for heat purchase/sale Approximately $250/cord. Delivered pellet price to be
determined in study
Project Analysis
a) Basic Economic Analysis
Project benefit/cost ratio
Payback (years)
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Rat
4.4.5 Impact on Rates
Please address the following items related to the proposed location of the heating project. If more
than one building will be impacted, please address this information for each building.
Building name
Hoonah School and pool, school carving shop, Boys and Girls Club, Hoonah Indian
Association Office, Head start Building, City Hall and one privately -owned non-residential
building with apartments, a laundry mat and a thrift store
Type or primary usage of the building
Various uses: office, education, carving shed, pool, apartments, laundry mat, store
Location
Hours of operation
Single structure or multiple units
Total square footage
Electrical consumption per year
Heating oil/fuel consumption per year
Average number of occupants
Has an energy audit been performed? When ? Please provide a copy of the energy audit, if
applicable.
An energy audit was performed for the school and pool in
Have building thermal energy efficiency upgrades been completed?
o If applicable, please provide evidence of efficiency improvements inc luding cost and
anticipated savings associated with upgrades.
o Estimated annual heating fuel savings
If the building is not yet constructed please provide evidence of the value of planned
building envelope efficiency investments beyond typical constru ction practices. Include
anticipated savings associated with efficiency investments if available.
Rates only affected to those on loop.
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SECTION 5– PROJECT BENEFIT
Explain the economic and public benefits of your project. Include direct cost sav ings, and
how the people of Alaska will benefit from the project.
The benefits information should include the following:
Potential annual fuel displacement (gallons and dollars) over the lifetime of the evaluated
renewable energy project. In order for the applicant to receive credit for heating fuel
displaced the applicant must provide the most recent invoice for heating fuel purchased.
Anticipated annual revenue (based on i.e. a Proposed Heat Purchase Agreement price, RCA
tariff, or cost based rate)
Potential additional annual incentives (i.e. tax credits)
Potential additional annual revenue streams (i.e. green tag sales or other renewable energy
subsidies or programs that might be available)
Discuss the non-economic public benefits to Alaskans over the lifetime of the project
Potential annual fuel displacement and anticipated annual revenue (gallons and dollars) would be
determined by the feasibility study, which will address technical, economic and financial aspects of
the proposed project. HIA expects that a wood boiler district heating system would offset a
significant portion of the fuel that is presently being used to heat the tribe’s two facilities.
HIA is a federally recognized tribal organization and thus, maintains non-taxable status. HIA may
form a not-for-profit Utility LLC if that proves desirable through the feasibility study
SECTION 6– SUSTAINABILITY
Discuss the operation of the completed project so that it will be sustainable.
Include at a minimum:
Proposed business structure(s) and concepts that may be considered.
How the maintenance and operations of the completed project will be financed for the life of the
project
Identification of operational issues that could arise.
A description of operational costs including on-going support for any back-up or existing
systems that may be require to continue operation
Commitment to reporting the savings and benefits
We are committed to sharing our information with the Alaska Energy Authority in an effort to help
other communities build for the future. This includes any and all data and evaluation from the
chosen contractor
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SECTION 7 – READINESS & COMPLIANCE WITH OTHER GRANTS
Discuss what you have done to prepare for this award and how quickly you intend to proceed with
work once your grant is approved.
Tell us what you may have already accomplished on the project to date and identify other grants
that may have been previously awarded for this project and the degree you ha ve been able to
meet the requirements of previous grants.
HIA has expended considerable effort and energy to rebuild relationships with the Ci ty of Hoonah,
Sealaska, Huna Totem and the USFS which had been in a deteriorated state for much of the last 2
decades. As evidenced from the letters of support referenced below, it is clear that much progress
has been made.
With the commitment of the collaborating partners, HIA believes it will be ready to immediately
initiate work on this project upon notification to proceed.
SECTION 8 – LOCAL SUPPORT AND OPPOSITION
Discuss local support and opposition, known or anticipated, for the project. Include letters of
support or other documentation of local support from the community that would benefit from this
project. The Documentation of support must be dated within one year of the RFA date of July 2,
2014.
Please see the attached letters of support
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SECTION 9 – GRANT BUDGET
Tell us how much you are seeking in grant funds. Include any investments to date and funding
sources, how much is being requested in grant funds, and additional investments you will make as
an applicant.
9.1 Funding sources and Financial Commitment
Provide a narrative summary regarding funding source and your financial commitment to the
project
HIA and its collaborating partners are prepared to commit internal resources to meet the objectives
of this project. HIA will make office space, telecommunications, cop iers, faxes and staff available
to the selected contractor.
9.2 Cost Estimate for Metering Equipment
Please provide a short narrative, and cost estimate, identifying the metering equipment, and its
related use to comply with the operations reporting requirement identified in Section 3.15 of the
Request for Applications.
Not applicable
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Applications MUST include a separate worksheet for each project phase that was identified in
section 2.3.2 of this application, (I. Reconnaissance, II. Feasibility and Conceptual Design, III. Final
Design and Permitting, and IV. Construction and Commissioning). Please use the tables provided
below to detail your proposed project’s budget. Be sure to use one table for each phase of your
project.
If you have any question regarding how to prepare these tables or if you need assistance preparing
the application please feel free to contact AEA at 907 -771-3031 or by emailing the Grants
Administrator, Shawn Calfa, at scalfa@aidea.org.
Milestone or Task
Anticipated
Completion
Date
RE- Fund
Grant Funds
Grantee
Matching
Funds
Source of
Matching
Funds:
Cash/In-
kind/Federal
Grants/Other
State
Grants/Other
TOTALS
(List milestones based on
phase and type of project.
See Milestone list below. )
$ $ $
1. Finalize award documents $ $0 $
2. Partner coordination and
project scoping $ $1000 $
3. MOU with project partners $ $1000 $
4. Heating data update $ $1000 $
5. Solicit proposals $1000 $500 $
6. Local and regional resource
assessment $1000 $4000 $
7. Award contract $3000 $ $
8. Site Visit $18000 $ $
9. Preliminary Report $17000 $ $
10. Final Report $5000 $ $
$ $ $
TOTALS $45000 $10000 $
Budget Categories:
Direct Labor & Benefits $ $ $
Travel & Per Diem $ $ $
Equipment $ $1500 $
Materials & Supplies $ $1500 $
Contractual Services $45000 $7000 $
Construction Services $ $ $
Other $ $ $
TOTALS $45000 $10000 $
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Milestone or Task
Anticipated
Completion
Date
RE- Fund
Grant Funds
Grantee
Matching
Funds
Source of
Matching
Funds:
Cash/In-
kind/Federal
Grants/Other
State
Grants/Other
TOTALS
(List milestones based on
phase and type of project.
See Milestone list below. )
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
TOTALS $ $ $
Budget Categories:
Direct Labor & Benefits $ $ $
Travel & Per Diem $ $ $
Equipment $ $ $
Materials & Supplies $ $ $
Contractual Services $ $ $
Construction Services $ $ $
Other $ $ $
TOTALS $ $ $
Renewable Energy Fund Round VIII
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AEA 15003 Page 26 of 30 7/2/14
Milestone or Task
Anticipated
Completion
Date
RE- Fund
Grant Funds
Grantee
Matching
Funds
Source of
Matching
Funds:
Cash/In-
kind/Federal
Grants/Other
State
Grants/Other
TOTALS
(List milestones based on
phase and type of project.
See Milestone list below. )
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
TOTALS $ $ $
Budget Categories:
Direct Labor & Benefits $ $ $
Travel & Per Diem $ $ $
Equipment $ $ $
Materials & Supplies $ $ $
Contractual Services $ $ $
Construction Services $ $ $
Other $ $ $
TOTALS $ $ $
Renewable Energy Fund Round VIII
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AEA 15003 Page 27 of 30 7/2/14
Milestone or Task
Anticipated
Completion
Date
RE- Fund
Grant Funds
Grantee
Matching
Funds
Source of
Matching
Funds:
Cash/In-
kind/Federal
Grants/Other
State
Grants/Other
TOTALS
(List milestones based on
phase and type of project.
See Milestone list below. )
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
$ $ $
TOTALS $ $ $
Budget Categories:
Direct Labor & Benefits $ $ $
Travel & Per Diem $ $ $
Equipment $ $ $
Materials & Supplies $ $ $
Contractual Services $ $ $
Construction Services $ $ $
Other $ $ $
TOTALS $ $ $
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Grant Application – Heat Projects
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SECTION 10 – AUTHORIZED SIGNERS FORM
Community/Grantee Name: Hoonah Indian Association
Regular Election is held: December 10
Date: September 22, 2014
Authorized Grant Signer(s):
Printed Name Title Term Signature
Robert Starbard Tribal Administrator
I authorize the above person(s) to sign Grant Documents:
(Highest ranking organization/community/municipal official)
Printed Name Title Term Signature
Robert Starbard Tribal Administrator
Grantee Contact Information:
Mailing Address: PO Box 602
Hoonah AK 99829
Phone Number: 907-945-3545
Fax Number: 907-945-3703
E-mail Address: rstarbard@hiatribe.org
Federal Tax ID #: 920060129
Please submit an updated form whenever there is a change to the above information.
Renewable Energy Fund Round VIII
Grant Application – Heat Projects
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SECTION 11 – ADDITIONAL DOCUMENTATION AND CERTIFICATION
SUBMIT THE FOLLOWING DOCUMENTS WITH YOUR APPLICATION:
A. Contact information and resumes of Applicant’s Project Manager, Project
Accountant(s), key staff, partners, consultants, and suppliers per application form
Section 3.1, 3.4 and 3.6.
Applicants are asked to provide resumes submitted with applications in separate electronic
documents if the individuals do not want their resumes posted to the project web site.
B. Letters or resolutions demonstrating local support per application form Section 8.
C. For heat projects only: Most recent invoice demonstrating the cost of heating fuel for
the building(s) impacted by the project.
D. Governing Body Resolution or other formal action taken by the applicant’s governing
body or management per RFA Section 1.4 that:
- Commits the organization to provide the matching resources for project at the
match amounts indicated in the application.
- Authorizes the individual who signs the application has the authority to commit
the organization to the obligations under the grant.
- Provides as point of contact to represent the applicant for purposes of this
application.
- Certifies the applicant is in compliance with applicable federal, state, and local,
laws including existing credit and federal tax obligations.
E. An electronic version of the entire application on CD or other electronic media, per
RFA Section 1.7.
F. CERTIFICATION
The undersigned certifies that this application for a renewable energy grant is truthful
and correct, and that the applicant is in compliance with, and will continue to comply
with, all federal and state laws including existing credit and federal tax obligations and
that they can indeed commit the entity to these obligations.
Print Name Robert Starbard
Signature
Title Tribal Administrator
Date September 22, 2014
CORPORATE PROFILE:
Gray Stassel Engineering, Inc., (GSE) is an Alaska-owned, Anchorage-based firm
incorporated in 1993 (originally as Alaska Energy and Engineering, Inc.) specifically to provide
design and project management services for rural energy projects. GSE has worked in more
than 120 rural Alaska communities, and managed construction of over 100 energy-related
projects in Alaska. Specifically, GSE has managed more than 80 diesel, wind and hydroelectric
power generation/heat recovery projects, 80 bulk fuel repair and upgrade projects, and over 200
bulk fuel site surveys in rural Alaska.
The company’s engineers specialize in alternative energy, power generation, electric
distribution, hydro-diesel integration, diesel generation heat recovery, fuel storage and handling,
and building heating systems. As a small firm, Gray Stassel Engineering, Inc. commits senior-
level registered engineers to the execution of every phase of a project rather than delegating to
inexperienced subordinates.
Gray Stassel Engineering is licensed and insured to provide full service mechanical and
electrical engineering and construction administration services. Through our team of
experienced subconsultants, we provide the full spectrum of Architectural, Civil, Geotechnical
and Regulatory Planning and Permitting. We carry professional liability, general liability,
automobile, and workman's compensation insurance.
Our engineers have performed projects in rural communities throughout Alaska; including power
generation / heat recovery and fuel projects in Angoon, Hoonah, Pelican, Gustavus, Tenakee
and Yakutat; and hydroelectric coordination/upgrade projects in Hoonah, Pelican and Gustavus.
Our extensive background designing and constructing energy projects in rural communities
enables GSE to design practical and functional facilities that meet code and regulation
requirements, provide long-term dependability, and are easily maintained and operated.
GSE provides the following services:
• Engineering and code compliance surveys
• Concept design and cost estimating
• Detailed engineering design
• Project/Construction administration
• Procurement and mobilization
• Quality control services and Peer Review
• Permitting and Regulatory Compliance, Spill Plans
For more information regarding GSE’s capabilities and experience, please call or fax your
request to the above numbers, or email to aknrgeng@ak.net.
September 18, 2014
Alaska Energy Authority
Renewable Energy Fund
813 West Northern Lights Boulevard
Anchorage, Alaska 99503
Re: Applicant Hoonah Indian Association for the Alaska Renewable Energy Fund
To: Mr. Calfa and the Renewable Energy Grant Advisory Council:
Over the past five years, the annual cost to heat the Hoonah schools have ranged from $96,000 to
$213,000. There are so many variables, from weather, pool closures, combined with electric and
fuel fluctuations that predicting energy cost is pure conjecture. One fact remains constant; the
high cost of energy in Hoonah impacts and limits the school and community. From structural
renovations to purchasing waste heat, the school has implemented different projects to curtail
energy co st. Rather then sending more money out of the community for fuel and burning diesel
for heat , the school purchased waste heat , creating an estimated 37% reduction in energy costs.
This is a great start, and we hope to expound on those improvements with alternative energy
resources.
The School District is one of the single largest energy consumers in Hoonah. The School Board
recognizes the need for supporting the advancement of local alternative energy resources.
Therefore, we support Hoonah Indian Association’s (HIA) request for funding through the
Renewable Energy Grant Fund for feasibility and design for a district biomass heating system for
multiple commercial buildings, including three School District buildings (school, pool, carving
shed). HIA is working toward more stably sourced and priced fuel in Hoonah, which would
benefit our students and their families greatly by displacing diesel fuel.
Sincerely,
Dennis Coulter
Hoonah School District Superintendent
Bob
Christensen,
Program
Coordinator
The
Sustainable
Southeast
Partnershipi
907-‐209-‐3006
-‐
bob.christensen3@gmail.com
www.sustainablesoutheast.net
Alaska
Energy
Authority
September
15,
2014
Renewable
Energy
Fund
813
West
Northern
Lights
Boulevard
Anchorage,
Alaska
99503
Re:
Applicant
Hoonah
Indian
Association
for
the
Alaska
Renewable
Energy
Fund
To:
Mr.
Calfa
and
the
Renewable
Energy
Grant
Advisory
Council:
The
Sustainable
Southeast
Partnership
(SSP)
is
a
growing
collaboration
of
organizations
committed
to
the
common
goal
of
empowering
Southeast
Alaskan
communities
to
simultaneously
develop
cultural,
ecological,
and
economic
prosperity,
sustainability
and
resilience.
The
SSP
works
with
local
communities
to
ensure
local
involvement
in,
and
benefit
from,
the
evolution
of
our
region’s
energy
system
over
the
long
term.
The
SSP
is
particularly
excited
to
witness
an
improvement
in
local
collaboration
between
the
City
of
Hoonah,
Hoonah
Indian
Association,
Sealaska
and
Huna
Totem
Corp.
These
entities
have
committed
to
working
together
to
address
the
high
energy
costs
in
Hoonah,
which
hinder
local
economic
growth.
Hoonah
Indian
Association
is
working
to
integrate
local
resources
and
employment
in
meeting
the
community’s
energy
needs
while
reducing
their
dependence
on
fossil
fuels.
The
SSP
supports
Hoonah
Indian
Association’s
request
for
funding
through
the
Renewable
Energy
Grant
Fund
for
feasibility
and
design
for
a
district
biomass
heating
system
for
multiple
commercial
buildings
and
can
commit
to
providing
ongoing
technical
and
social
support
to
see
that
these
funds
are
used
to
their
maximum
benefit,
including
sharing
lessons
learned
with
other
communities
in
southeast
Alaska.
Sincerely,
Bob
Christensen
i
The
Sustainable
Southeast
Partnership
is
sponsored
by
the
Alaska
Conservation
Foundation.
Funding
is
provided
by
the
Margaret
Carghill
Foundation,
the
Gordon
and
Betty
Moore
Foundation
and
the
Paul
G.
Allen
Family
Fund.
Current
partners
include:
the
Hoonah
Indian
Association,
the
Southeast
Alaska
Conservation
Council,
The
Nature
Conservancy,
Haa
Aani’,
the
Renewable
Energy
Alaska
Project,
Southeast
Conference,
the
City
of
Kake,
the
Organized
Village
of
Kake,
the
Organized
Village
of
Kasaan,
the
Southeast
Alaska
Watershed
Coalition,
The
Sitka
Conservation
Society
and
the
Hydaburg
Community
Association.
435 Airport Rd, (Mailing: PO Box 320) Hoonah, AK 99829
(907) 945-3636 phone (907) 945-3610 fax
September 16,2014
Alaska Energy Authority
Renewable Energy Fund
813 West Northern Lights Boulevard
Anchorage, Alaska 99503
Re: Applicant Hoonah Indian Association for the Alaska Renewable Energy Fund
To: Mr. Calfa and the Renewable Energy Grant Advisory Council:
My wife and I own the Icy Strait Lodge in Hoonah, Alaska. We know all too well how painfully
expensive it is to own a large building in a diesel electric community like Hoonah. We converted our
14,250 square foot hotel to an Alternate Heating "cordwood" boiler three years ago. What was a
minimum 1 0,000 gallon diesel addiction has been reduced to less than 200 gallons a year. These past
three years have been the first years that the Lodge has operated at a profit during the 14 years since I
purchased the Lodge. The conversion has clearly been good for our finances, the building, our guests
and the community. The savings are able to be used locally.
We wholeheartedly applaud and support the Hoonah Indian Association's application for a biomass
feasibility and design grant. Ironically, it was the Alaska Energy Authorities and a Commercial energy
audit program that convinced me to purchase our wood boiler system 4 years ago. When that audit
revealed that our entire roofhad less than an R-9 energy value it became apparent that since we
hemorrhaged heat we desperately needed it to be affordable. As a result the Lodge has never been
warmer and the interior dryer and we can finally afford to improve on the Lodge instead of just
surviving. We understand that similarly, as a result of a grant for this study, all the good things that have
happened for the Lodge could become possible for the participants lucky enough to be included in the
proposed district heating system. Also as well as the inevitable spinoffs in other communities once it has
proven successful.
I am on the City Council and clearly understand how much our businesses and especially our childrens
educations in the school system suffer because of our high cost of energy. We hope that you can see the
merits of this proposal and the unique and coordinated strength that HIA would provide embarking on
this important initiative to demonstrate holistic and synergistic energy generation and distribution.
s~
Ed Phillips, Owner
Icy Strait Lodge
Show others God’s love through prayer, through words and through action.
The Salvation Army
Hoonah Corps & Community Center
P.O. Box 238
Hoonah, Alaska 99829
(907) 945-3359
Founded in 1865
William &
Catherine Booth
Founders
André Cox,
General
James M. Knaggs,
Commissioner
Territorial Commander
George L. Baker,
Major
Divisional Commander
Liane Newcomb,
Lieutenant
Corps Officer
September 15, 2014
Alaska Energy Authority
Renewable Energy Fund
813 West Northern Lights Boulevard
Anchorage, Alaska 99503
Re: Applicant Hoonah Indian Association for the
Alaska Renewable Energy Fund
Dear Mr. Calfa & the Renewable Energy Grant Advisory Council:
As Corps Officer (Pastor) of The Salvation Army in Hoonah, it has been part of
our mission and priority to be responsible stewards with the resources available
including energy usage. We do depend on diesel fuel to heat our building of a
little over 6000 square feet. With diligent conservation that amounts to
approximately $5000 in a calendar year to do so. I cannot help but think some of
this cost could be redirected to heating fuel assistance for families in need,
especially during the winter months. Some of these families have to decide
between purchasing fuel, feeding their families or continuing needed medication.
Hoonah Indian Association and Tlingit & Haida have sponsored energy fairs to
update many interested community individuals on what are realistic and
reasonable goals in alternate energy. We have one of the highest energy costs in
the nation which impedes our economic health and well-being. It impacts the
ability of the next generation to stay in Hoonah with business ventures.
The Salvation Army in Hoonah supports Hoonah Indian Association endeavors to
seek funding through the Renewable Energy Grant Fund for feasibility and
design for a district biomass heating system for multiple commercial and public
buildings within the core commercial area. The will be an immense step in the
direction of responsible guardianship of our future.
Thank you for your consideration to this request.
Sincerely yours,
Liane Newcomb, Lieutenant
Corps Officer
SILVER SALMON LAND LLC
Hoonah, Alaska
September 21, 2014
Alaska Energy Authority
Renewable Energy Fund
813 West Northern Lights Blvd.
Anchorage, Alaska
Re: Applicant Hoonah Indian Association (HIA) for the Alaska Renewable Energy Fund
To: Mr. Calfa and the Renewable Energy Grant Advisory Council
We own one of the largest commercial buildings in downtown Hoonah known as the Bank
Building and it borders the HIA Walker property. HIA management has advised us that they
are looking at a feasibility study for a biomass fueled heat loop for existing and proposed
building construction on this land.
The largest operating cost for a commercial business of our kind is heating fuel and in our
case it amounted to approximately 32% of all operating costs in 2013. Any energy source that
lowers this cost is of great interest to us and we would strongly support any study related to
this goal.
We have asked HIA to include the bank building in their renewable energy study as an
increased demand for the heat should reduce the cost per unit for generation and
distribution. Providing heat for each building, individually, in a contiguous area is the least
efficient way to operate due to construction, installation, maintenance and management
costs of the various heat generating options.
On this basis, we encourage your approval of this innovative initiative.
Sincerely,
Christian Werner
Managing Partner
Preliminary Feasibility Assessment for High
Efficiency, Low Emission Wood Heating In
Hoonah, Alaska
Prepared on behalf of:
Hoonah School District
Hoonah, AK
Steve Pine, Principal/Superintendent
Prepared by:
Daniel Parrent,
Wood Utilization Specialist
Juneau Economic Development Council
Friday, October 17, 2008
Notice
This Preliminary Feasibility Assessment for High Efficiency, Low Emission Wood Heating was prepared by
Daniel Parrent, Wood Utilization Specialist, Juneau Economic Development Council on behalf of the Hoonah
School District, Hoonah, AK, Steve Pine, Principal/Superintendent. This report does not necessarily represent
the views of the Juneau Economic Development Council (JEDC). JEDC, its Board, employees, contractors,
and subcontractors make no warranty, express or implied, and assume no legal liability for the information in
this report; nor does any party represent that the use of this information will not infringe upon privately owned
rights. This report has not been approved or disapproved by JEDC nor has JEDC passed upon the accuracy
or adequacy of the information in this report.
Funding for this report was provided by USDA Forest Service, Alaska Region,
Office of State and Private Forestry
2
Table of Contents
Abstract
Section 1. Executive Summary
1.1 Goals and Objectives
1.2 Evaluation Criteria, Project Scale, Operating Standards, General Observations
1.3 Assessment Summary and Recommended Actions
1.4 Power Generation and Waste Heat Capture
Section 2. Evaluation Criteria, Implementation, Wood Heating Systems
2.1 Evaluation Criteria
2.2 Successful Implementation
2.3 Classes of Wood Heating Systems
Section 3. The Nature of Wood Fuels
3.1 Wood Fuel Forms and Current Utilization
3.2 Heating Value of Wood
Section 4. Wood Fueled Heating Systems
4.1 Low Efficiency High Emission Cordwood Boilers
4.2 High Efficiency Low Emission Cordwood Boilers
4.3 Bulk Fuel Boiler Systems
Section 5. Selecting the Appropriate System
5.1 Comparative Costs of Fuels
5.2(a) Cost per MMBtu Sensitivity – Cordwood
5.2(b) Cost per MMBtu Sensitivity – Bulk Fuels
5.3 Determining Demand
5.4 Summary of Findings
Section 6. Economic Feasibility of Cordwood Systems
6.1 Initial Investment Cost Estimates
6.2 Operating Parameters of HELE Cordwood Boilers
6.3 Hypothetical OM&R Cost Estimates
6.4 Calculation of Financial Metrics
6.5 Simple Payback Period for Small and Large HELE Cordwood Boilers
6.6 Present Value, Net Present Value and Internal Rate of Return Values for Multiple
HELE Cordwood Boilers
6.7 The Case for Fuel Purchase Planning and Fuel Storage
6.8 Life Cycle Cost Analysis
Section 7. Economic Feasibility of Bulk Fuel Systems
7.1 Capital Cost Components
7.2 Generic OM&R Cost Allowances
7.3 Calculation of Financial Metrics
7.4 Simple Payback Period for Generic Bulk Fuel Boilers
7.5 Present Value, Net Present Value and Internal Rate of Return Values for Bulk Fuel Boilers
Section 8. Conclusions
8.1 Cordwood Systems
8.2 Bulk Fuel Systems
References and Resources
3
Appendix A AWEDTG Evaluation Criteria
Appendix B Recoverable Heating Value Determination
Appendix C List of Abbreviations and Acronyms
Appendix D Wood Fuel Properties
Appendix E Financial Metrics
Appendix F Operational Parameters of HELE Cordwood Boilers
Appendix G Calculation of Present Value, Net Present Value and Internal Rate of Return
Appendix H Garn Boiler Specifications
List of Tables and Figures
Table 4-1 HELE Cordwood Boiler Suppliers
Table 4-2 Emissions from Wood Heating Appliances
Table 4-3 Bulk Fuel Boiler System Vendors
Table 4-4 Bulk Fuel Boilers in Alaska
Table 5-1 Comparative Cost of Fuel Oil vs. Wood Fuels
Figure 5-1 Effect of Hemlock Cordwood (MC30) Cost on Cost of Delivered Heat
Figure 5-2 Effect of Hemlock Bulk Fuel (MC50) Cost on Cost of Delivered Heat
Table 5-2 Reported Annual Fuel Oil Consumption, Hoonah School and Gym/pool
Table 5-3 Estimate of Heat Required in Coldest 24 Hr Period
Table 5-4 Estimate of Total Wood Consumption, Comparative Costs and Potential Savings
Table 6-1 Initial Investment Cost Scenarios for Hypothetical Cordwood Systems
Table 6-2 Labor/Cost Estimates for HELE Cordwood Systems
Table 6-3 Summary of Total Annual OM&R Cost Estimates
Table 6-4 Simple Payback Period Analysis for HELE Cordwood Boilers
Table 6-5 PV, NPV and IRR Values for HELE Cordwood Boilers
Table 7-1 Initial Investment Cost Components for Bulk Fuel Systems
Table 7-2 Darby, MT Public School Wood Chip Boiler Costs
Table 7-3 Characteristics of Biomass Boiler Projects
Table 7-4 Cost Breakdown for the Least Expensive Wood Chip Boiler System Installed in a New Free-
Standing Building
Table 7-5 Total OM&R Cost Allowances for a Bulk Fuel System
Table 7-6 Simple Payback Period Analysis for Bulk Fuel Heating Systems
Table 7-7 PV, NPV and IRR Values for Bulk Fuel Systems
4
Key words: HELE, LEHE, bulk fuel, cordwood
ABSTRACT
The potential for heating the Hoonah School in Hoonah, AK with high efficiency, low emission
(HELE) wood-fired boilers is evaluated for the Hoonah School District, Hoonah, AK.
SECTION 1. EXECUTIVE SUMMARY
1.1 Goals and Objectives
• Inspect the Hoonah School and gym/pool facility and physical site in Hoonah as potential
candidates for heating with wood
• Evaluate the suitability of the facility(s) and site(s) for siting a wood-fired boiler
• Assess the type(s) and availability of wood fuel(s)
• Size and estimate the capital costs of suitable wood-fired system(s)
• Estimate the annual operation and maintenance costs of a wood-fired system
• Estimate the potential economic benefits from installing a wood-fired heating system
1.2 Evaluation Criteria, Project Scale, Operating Parameters, General Observations
• This project meets the Alaska Wood Energy Development Task Group objectives for
petroleum fuel displacement, use of hazardous forest fuels or forest treatment residues,
sustainability of the wood supply, project implementation, operation and maintenance, and
community support
• Using an estimate of 50,000 gallons per year, this project would be considered relatively
large in terms of its scale.
• Medium and large energy consumers have the best potential for feasibly implementing a
wood-fired heating system. Where preliminary feasibility assessments indicate positive
financial metrics, detailed engineering analyses are usually warranted.
• Cordwood systems are generally appropriate for applications where the maximum heating
demand ranges from 100,000 to 1,000,000 Btu per hour. “Bulk fuel” systems are generally
applicable for situations where the heating demand exceeds 1 million Btu per hour. How-
ever, these are general guidelines; local conditions can exert a strong influence on the best
system choice.
• Efficiency and emissions standards for Outdoor Wood Boilers (OWB) changed in 2006,
which could increase costs for small systems
1.3 Assessment Summary and Recommended Actions
• Overview. The Hoonah School heating system is housed in its own building directly
behind and in reasonably close proximity (100 feet) to the school. It consists of two
Kewanee oil-fired boilers rated at 2,050 MBH (net each). Currently, the installed nozzles
(2 per boiler) operate at a maximum rate of 5.5 gph (each). These boilers were installed in
1992, and reportedly are in good operational condition. However, the manufacturer is no
longer in business and repair parts, though still available, are becoming more difficult to
5
obtain. Domestic hot water for the school is provided by separate oil-fired water heaters
(number, manufacturer and specifications not noted).
The gym/pool boiler room is located within the gym/pool building, approximately 320 feet
from the school boiler building. The heating system consists of two Weil McLain H-486-
S-W oil fired boilers installed in 1982 (CP No. 775956). The boilers are IBR rated at 626.1
MBH (net, each). Although nearing the end of their service life expectancy, these boilers
appear to be in reasonably good condition and may be sufficient to serve as back-up boilers
to a wood-fired heating system. Domestic hot water is provided by a single 250 gallon,
PVI Industries “Copperglas” 9.0-G-250-A-O (SN 118454216) oil-fired water heater rated
at 1.2 MBH with a fuel oil input of 9.0 gph.
• Fuel Consumption. The Hoonah School building consumes approximately 30,000 gallons
of #2 fuel oil per year, and the gym/pool consumes approximately 20,000 gallons of fuel
oil per year.
• Potential Savings. With current fuel prices at $5.35 per gallon and total consumption of
50,000 gallons of fuel oil per year, the annual cost of fuel oil for the Hoonah School and
gym/pool is roughly $267,500. The HELE cordwood fuel equivalent of 50,000 gallons of
fuel oil is approximately 555 cords, and at $175/cord represents a potential annual fuel
cost savings of $170,375 (Debt service and OM&R costs notwithstanding). The bulk fuel
equivalent of 50,000 gallons of fuel oil is approximately 1,405 tons, and at $70/ton
represents a potential annual fuel cost savings of $169,150 (Debt service and OM&R costs
notwithstanding).
• Required boiler capacity. The estimated required boiler capacity (RBC) to heat the Hoonah
School and gym/pool during the coldest 24-hour period is undeterminable since a presumably
significant portion of the fuel is used to maintain consistent water temperatures in the
swimming pool. However, if all the fuel was used to provide space heat, the estimated
required boiler capacity (RBC) would be approximately 1.6 million Btu/hr during the coldest
24-hour period.
• Recommended action regarding a cordwood system. The financial metrics of installing
multiple large HELE cordwood boilers are strongly positive, with simple payback periods
between 5 and 6 years. Net present values are strongly positive and the internal rates of
return, at 20 years, range from about 12½ to 13½ percent. Formal consideration of a
HELE cordwood system for the Hoonah School/gym/pool is warranted. See Section 6.
• Recommended action regarding a bulk fuel wood system. A “bulk fuel” system appears
financially feasible for the Hoonah School/gym/pool, given a consistent and reasonably-
priced fuel supply and average initial investment costs. Formal consideration of a bulk fuel
system for the Hoonah School/gym/pool is warranted. See Section 7.
1.4 Power Generation and Waste Heat Capture
There are five diesel generators installed at the Hoonah School -- (2) 75 kW generators, (1)
100 kW generator, and (2) 150 kW generators. These generators are co-located with the
school boilers and water heaters. Apparently, none of these generators, individually, is
large enough to supply the school with all its electrical needs, and the electrical control
system is insufficiently designed to handle multiple generator operation/inputs. Therefore,
the system is not being used, except in emergencies. It is worth noting, however, that a
waste-heat reclamation system, tied into the oil-fired boilers, is already in place.
6
All electricity in Hoonah is currently diesel-generated, and the cost of self-generated power
would offer little or no savings over purchased power. However, given total electrical
consumption of approximately 500,000 kilowatt-hours per year, the potential to offset
heating costs with reclaimed waste heat is substantial. At $0.60 per kWh, the annual cost
of electricity amounts to approximately $300,000. Given that the school, pool, and gym
consume about 50,000 gallons of fuel oil per year for space heat, domestic hot water, and
pool water heating (at an annual cost of $250,000 to $275,000), it appears that the potential
savings could be significant. Anecdotally, this was demonstrated last winter during a one-
day power outage when one of the large generators was brought online. Apparently,
although 150 kW is less than the total amount of power required for optimal operation of
the school, it was enough to “get by”. Furthermore, the captured waste heat was more than
sufficient to keep the school warm; enough so that boilers did not have to fire at all.
If the power production/management issue(s) can be sufficiently resolved, and a waste heat
capture system utilized to its full capacity, any discussion of a wood-fired heating system
large enough to supply both the school and the gym/pool may be moot. Further
consideration by a qualified engineer is strongly recommended.
SECTION 2. EVALUATION CRITERIA, IMPLEMENTATION, WOOD HEATING SYSTEMS
The approach being taken by the Alaska Wood Energy Development Task Group (AWEDTG)
regarding biomass energy heating projects follows the recommendations of the Biomass Energy
Resource Center (BERC), which advises that, “[T]he most cost-effective approach to studying the
feasibility for a biomass energy project is to approach the study in stages.” Further, BERC advises
“not spending too much time, effort, or money on a full feasibility study before discovering whether
the potential project makes basic economic sense” and suggests, “[U]ndertaking a pre-feasibility
study . . . a basic assessment, not yet at the engineering level, to determine the project's apparent
cost-effectiveness”. Biomass Energy Resource Center, Montpelier, Vermont. www.biomasscenter.org
2.1 Evaluation Criteria
The Hoonah School and gym/pool project meets the AWEDTG criteria for potential petroleum fuel
displacement, use of forest residues for public benefit, use of local processing residues,
sustainability of the wood supply, project implementation, operation and maintenance, and
community support.
In the case of a cordwood boiler system, the combination of cordwood supplied from forest-derived
resources and local sawmill residues appears adequate, although more efficient processing and
production equipment would be desirable. The “bulk fuel” infrastructure is nearly non-existent;
apparently there is some processing equipment in town, but it is not installed. To supply bulk fuel
to the Hoonah School would entail developing that capability.
2.2 Successful Implementation
In general, four aspects of project implementation have been important to wood energy projects in
the past: 1) a project “champion”, 2) clear identification of a sponsoring agency/entity, 3) dedica-
tion of and commitment by facility personnel, and 4) a reliable and consistent supply of fuel.
In situations where several organizations are responsible for different community services, it must
be very clear which organization(s) would sponsor and/or implement a wood-burning project.
(NOTE: This is not necessarily the case with the Hoonah School, but the issue should be addressed
if germane.)
7
With manual systems, boiler stoking and/or maintenance is required for approximately 5-10
minutes per boiler several times a day (depending on the heating demand), and dedicating
personnel for the operation is critical to realizing savings from wood fuel use. Though automated,
bulk fuel systems also have a daily labor requirement. For this report, it is assumed that new
personnel would be hired or existing personnel would be assigned as necessary, and that “boiler
duties” would be included in the responsibilities and/or job description of facility personnel.
Another option would be to hire a local vendor/contractor to provide such services.
The forest industry infrastructure in/around Hoonah is not large, but appears to be sufficient to
supply the necessary wood requirements. Some local processing capabilities, whether for cordwood
or bulk fuel, would need to be developed, but the basic infrastructure is in place.
2.3 Classes of Wood Energy Systems
There are, essentially, two classes of wood energy systems: manual cordwood systems and
automated “bulk fuel” systems. Cordwood systems are generally appropriate for applications
where the maximum heating demand ranges from 100,000 to 1,000,000 Btu per hour, although
smaller and larger applications are possible. “Bulk fuel” systems are systems that burn wood chips,
sawdust, bark/hog fuel, shavings, pellets, etc. They are generally applicable for situations where the
heating demand exceeds 1 million Btu per hour, although local conditions, especially fuel
availability and cost, can exert strong influences on the feasibility of a bulk fuel system.
Usually, an automated bulk fuel boiler is tied-in directly with the existing oil-fired system. With a
cordwood system, glycol from the existing oil-fired boiler system would be circulated through a
heat exchanger at the wood boiler ahead of the existing oil boiler. A bulk fuel system is usually
designed to replace 100% of the fuel oil used in the oil-fired boiler, and although it is possible for a
cordwood system to be similarly designed, they are usually intended as a supplement, albeit a large
supplement, to an oil-fired system. In either case, the existing oil-fired system would normally
remain in place and be available for peak demand or backup in the event of downtime (scheduled
or unscheduled) in the wood system.
SECTION 3. THE NATURE OF WOOD FUELS
3.1 Wood Fuel Forms and Current Utilization
Currently, potential wood fuel supplies in Hoonah are fairly abundant. There is one fairly large,
full-time sawmill operation (Icy Straits Lumber & Milling), a small, full-time sawmill operation
(D&L Woodworks), and several part-time sawmill operations. Wood could come from a variety of
land ownerships, including Huna Totem Corp., Sealaska Corp., and the USDA Forest Service.
Wood fuels in Hoonah, currently, are most likely to be in the form of cordwood or large mill
residues (slabs, edgings) since there is no demand for bulk fuels locally. However, bulk fuels could
be produced if demand was sufficient to warrant the investment in the processing equipment.
3.2 Heating Value of Wood
Wood is a unique fuel whose heating value is quite variable, depending on species of wood,
moisture content, and other factors. There are also several ‘heating values’, namely high heating
value (HHV), gross heating value (GHV), recoverable heating value (RHV), and deliverable
heating value (DHV), that may be assigned to wood at various stages in the calculations.
8
For this report, hemlock cordwood at 30 percent moisture content (MC30) and hemlock bulk fuel
at 50 percent moisture content (MC50), calculated on the green wet weight basis (also called wet
weight basis), are used as benchmarks. NOTE: Drier wood will have greater heater value, and less
of it would be required to deliver a given amount of heat.
The HHV of hemlock at 0% moisture content (MC0) is 8,515 Btu/lb1. The GHV at 30% moisture
content (MC30) is 5,961 Btu/lb, and the GHV at 50% moisture content (MC50) is 4,258 Btu/lb.
The RHV for cordwood (MC30) is calculated at 13.26 million Btu per cord, and the DHV, which
is a function of boiler efficiency (assumed to be 75%), is 9.945 million Btu per cord. The delivered
heating value of 1 cord of hemlock cordwood (MC30) equals the delivered heating value of 90.08
gallons of #2 fuel oil when oil is burned at 80% efficiency and wood is burned at 75% efficiency.
The RHV for bulk fuel (MC50) is calculated at 5.61 million Btu per ton, and the DHV, which is a
function of boiler efficiency (assumed to be 70%), is 3.927 million Btu per ton. The delivered
heating value of 1 ton of hemlock bulk fuel (MC50) equals the delivered heating value of 35.57
gallons of #2 fuel oil when oil is burned at 80% efficiency and wood is burned at 70% efficiency.
A more thorough discussion of the heating value of wood can be found in Appendix B and
Appendix D.
SECTION 4. WOOD-FUELED HEATING SYSTEMS
4.1 Low Efficiency High Emission (LEHE) Cordwood Boilers
Most manual outdoor wood boilers (OWBs) that burn cordwood are relatively low-cost and can
save fuel oil but have been criticized for low efficiency and smoky operation. These could be called
low efficiency, high emission (LEHE) systems and there are dozens of manufacturers. In 2006, the
State of New York instituted a moratorium on new LEHE OWB installations due to concerns over
emissions and air quality5. Other states have also considered or implemented new regulations6,7,8,9.
Since there are no standards for OWBs (“boilers” and “furnaces” were exempt from the 1988 EPA
regulations10), OWB ratings are inconsistent and can be misleading. Prior to 2006, standard
procedures for evaluating wood boilers did not exist, but test data from New York, Michigan and
elsewhere showed a wide range of apparent [in]efficiencies and emissions among OWBs.
In 2006, a committee was formed under the American Society for Testing and Materials (ASTM)
to develop a standard test protocol for OWBs11. The standards included uniform procedures for
determining performance and emissions. Subsequently, the ASTM committee sponsored tests of
three common outdoor wood boilers using the new procedures. The results showed efficiencies as
low as 25% and emissions more than nine times the standard for other industrial boilers.
Obviously, these results were deemed unsatisfactory and new OWB standards were called for.
In a news release dated January 29, 200712, the U.S. Environmental Protection Agency announced
a new voluntary partnership agreement with 10 major OWB manufacturers to make cleaner-
burning appliances. The new phase-one standard calls for emissions not to exceed 0.60 pounds of
particulate emissions per million Btu of heat input. The phase-two standard, which will follow 2
years after phase-one, will limit emissions to 0.30 pounds per million Btus of heat delivered,
thereby creating an efficiency standard as well.
To address local and state concerns over regulating OWB installations, the Northeast States for
Coordinated Air Use Management (NeSCAUM), and EPA have developed model regulations that
9
recommend OWB installation specifications, clean fuel standards and owner/operator training.
(http://www.epa.gov/woodheaters/ and http://www.nescaum.org/topics/outdoor-hydronic-heaters)
Implementation of the new standard will improve air quality and boiler efficiency but will also
increase costs as manufacturers modify their designs, fabrication and marketing to adjust to the
new standards. Some low-end models will no longer be available.
4.2 High Efficiency Low Emission (HELE) Cordwood Boilers
In contrast to low efficiency, high emission cordwood boilers there are a few units that can be
considered high efficiency, low emission (HELE). These systems are designed to burn cordwood
fuel cleanly and efficiently, mostly by incorporating some degree of gasification technology.
Table 4-1 lists three HELE boiler suppliers, all of which have units operating in Alaska.
BioHeatUSA (formerly TarmUSA) and Greenwood and have a number of residential units
operating in Alaska. A number of Garn boilers, manufactured by Dectra Corporation, have been
installed in larger institutional applications in Dot Lake, Tanana and Kasilof; several others are in
the planning stages.
Table 4-1. HELE Cordwood Boiler Suppliers
Supplier Btu/hr ratings Brands
Bio Heat USA
www.bioheatusa.com 100,000 to 198,000 Tarm, Scandtec, Froling
Greenwood
www.greenwoodusa.com 100,000 to 300,000 Greenwood
Dectra Corp.
www.garn.com 350,000 to 950,000 Garn
Note: Listing of any manufacturer, distributor or service provider does not constitute an endorsement.
Table 4-2 shows the test results for a high efficiency boiler (Garn WHS 1350) that was tested at
157,000 to 173,000 Btu per hour using standardized testing procedures, compared with EPA
standards for wood stoves and boilers. It is important to remember that wood fired boilers are not
entirely smokeless; even very efficient wood boilers may smoke for a few minutes on startup.4,15
Table 4-2. Emissions from Wood Heating Appliances
Appliance Emissions
(grams/1,000 Btu delivered)
EPA Certified Non Catalytic Stove 0.500
EPA Certified Catalytic Stove 0.250
EPA Industrial Boiler (many states) 0.225
Garn WHS 1350 Boiler* 0.179
Source: Intertek Testing Services, Michigan, March 2006.
Note: *With dry oak cordwood; average efficiency of 75.4% based upon the high heating value (HHV) of wood
Other gasification-style wood boiler manufacturers and/or suppliers include Econoburn, Wood
Gun, TurboBurn, and EKO-Line. (And there may be others.) However, there are no known
10
operating units by these suppliers in Alaska, and it is unknown whether any of the appliances sold
by these suppliers meet the efficiency or emission standards discussed in Section 4.1.
4.3 Bulk Fuel Boiler Systems
Commercial bulk fuel systems are generally efficient and meet typical federal and state air quality
standards. They have been around for a long time and there is little new technological ground to
break when installing one. Efficient bulk fuel boilers typically convert 70% of the energy in the
wood fuel to hot water or low pressure steam when the fuel moisture is less than 40% moisture
content (MC40, calculated on a wet basis). NOTE: It is possible to incorporate fuel dryers when
dealing with wetter feedstocks.
Most vendors provide systems that can burn various bulk fuels (wood chips, sawdust, wood pellets,
hog fuel, etc.), but each system, generally, has to be designed around the predominant fuel form. A
system designed to burn clean sawmill chips will not necessarily operate well on a diet of hog fuel,
for example. And most vendors will emphasize the need for good quality wood fuel as well as a
consistent source, i.e., fuel of consistent size and moisture content from a common source is
considerably more desirable than variations in chip size and/or moisture content from numerous
suppliers. Table 4-3 presents a partial list of bulk fuel boiler system vendors.
Table 4-3. Bulk Fuel Boiler System Vendors
Decton Iron Works, Inc
www.decton.com
New Horizon Corp.
www.newhorizoncorp.com
Messersmith Manufacturing, Inc.
www.burnchips.com
Precision Energy Services, Inc
www.pes-world.com
Chiptec Wood Energy Systems
www.chiptec.com
Bio-Fuel Technologies
www.bio-fueltechnologies.com
Note: Listing of any manufacturer, distributor or service provider does not constitute an endorsement
Bulk fuel systems are available in a range of sizes between 300,000 and 60,000,000 Btu/hr.
However, the majority of the institutional installations range from 1 MMBtu/hr to 20 MMBtu/hr.
Larger energy consumers, consuming at least 35,000 gallons of fuel oil per year, have the best
potential for installing bulk fuel boilers and may warrant detailed engineering analysis. Bulk fuel
systems with their storage and automated fuel handling conveyances are generally not cost-
effective for smaller applications.
Although there are several options, bulk fuel is best delivered in 40-ft, self-unloading, tractor-
trailer vans that hold about 22 tons of material. A facility such as the Hoonah School/gym/pool,
replacing 50,000 gallons of fuel oil with hemlock bulk fuel (MC50), would use an estimated 1,405
tons per year, or about 2 tractor-trailer loads per week (on average) throughout the school year.
There are four known bulk fuel boilers in Alaska (Table 4-4), three of which are installed at
sawmills. The most recent was installed in Craig in 2008 and consists of a 4 MMBtu/hr wood chip
gasifier at the Craig Aquatic Center and School. It is designed to replace the equivalent of 36,000
gallons of fuel oil per year, and is similar in size to boilers recently installed in several Montana
schools. Bulk fuel boilers are also being considered for school heating projects in Delta Junction,
Tok and Haines. Bulk fuel systems are discussed in more detail in Section 7.
11
Table 4-4. Bulk Fuel Boilers in Alaska
Installation Boiler
Horsepower* MMBtu/hr Heating
Degree Days** Supplier
Craig Aquatic Center
Craig, AK 120 4 7,209a Chiptek
Icy Straits Lumber & Milling
Hoonah, AK 72 2.4 8,496b Decton
Regal Enterprises
Copper Center, AK N/A N/A 13,486c Decton
Logging & Milling Associates
Delta Junction, AK N/A 2 12,897d Decton
Table 4-4 Notes:
* Heat delivered as hot water or steam. 1 Boiler Horsepower = 33,475 Btu/hr or 34.5 pounds of water at a temperature of
100°C (212°F) into steam at 212°F
** assumes base temperature = 65o F
a NOAA, July 1, 2005 through June 30, 2006, Ketchikan data
b NOAA, July 1, 2005 through June 30, 2006, Average of Juneau and Yakutat data
c NOAA, July 1, 2005 through June 30, 2006, Gulkana data
d NOAA, July 1, 2005 through June 30, 2006, Big Delta data
ftp://ftp.cpc.ncep.noaa.gov/htdocs/products/analysis_monitoring/cdus/degree_days/archives/Heating%20degree%20Days/Monthly%20City/2006/jun%202006.txt
SECTION 5. SELECTING THE APPROPRIATE SYSTEM
Selecting the appropriate heating system is, primarily, a function of heating demand. It is generally
not feasible to install automated bulk fuel systems in/at small facilities, and it is likely to be
impractical to install cordwood boilers at very large facilities. Other than demand, system choice
can be limited by fuel availability, fuel form, labor, financial resources, and limitations of the site.
The selection of a wood-fueled heating system has an impact on fuel economy. Potential savings
in fuel costs must be weighed against initial investment costs and ongoing operating, maintenance
and repair (OM&R) costs. Wood system costs include the initial capital costs of purchasing and
installing the equipment, non-capital costs (engineering, permitting, etc.), the cost of the fuel
storage building and boiler building (if required), the financial burden associated with loan interest,
the fuel cost, and the other costs associated with operating and maintaining the heating system,
especially labor.
5.1 Comparative Costs of Fuels
Table 5-1 (next page) compares the cost of #2 fuel oil to hemlock cordwood (MC30) and hemlock
bulk fuel (MC50). In order to make reasonable comparisons, costs are provided on a “per million
Btu” (MMBtu) basis.
12
Table 5-1. Comparative Cost of Fuel Oil vs. Wood Fuels
FUEL RHVa
(Btu)
Conversion
Efficiencya
DHVa
(Btu)
Price per unit
($)
Cost per MMBtu
(delivered, ($))
5.00/gallon 45.29
5.50 49.819 Fuel oil, #2,
(per 1 gallon) 138,000 80% 110,400
6.00 54.348
175/cord 17.597
200 20.111 Hemlock,
(per 1 cord, MC30)
13.26
million 75% 9.945
million 225 22.624
70/ton 17.825
80 20.372 Hemlock
(per 1 ton, MC50)
5.61
million 70% 3.927
million 90 22.918
Notes:
a from Appendix D
5.2(a) Cost per MMBtu Sensitivity – Cordwood
Figure 5-1 (next page) illustrates the relationship between the price of hemlock cordwood (MC30)
and the cost of delivered heat, (the slanted line). For each $25 per cord increase in the price of
cordwood, the cost per million Btu increases by about $2.514. The chart assumes that the
cordwood boiler delivers 75% of the RHV energy in the cordwood to useful heat and that oil is
converted to heat at 80% efficiency. The dashed lines represent fuel oil at $5.00, $5.50 and $6.00
per gallon ($45.29, $49.819 and $54.348 per million Btu respectively).
At high efficiency, heat from hemlock cordwood (MC30) at $481.93 per cord is equal to the
current cost of oil at $5.35 per gallon ($48.46/MMBtu), before considering the cost of the
equipment and operation, maintenance and repair (OM&R) costs. At 75% efficiency and $175 per
cord, a high-efficiency cordwood boiler will deliver heat at about 36.3% of the current cost of fuel
oil ($17.597 versus $48.46 per MMBtu respectively). Figure 5-1 indicates that, at a given
efficiency, savings increase significantly with decreases in the delivered price of cordwood and/or
with increases in the price of fuel oil.
13
Cost ($) per MMBtu as a Function of
Cordwood Cost
0.000
10.000
20.000
30.000
40.000
50.000
60.000
150 200 250 300 350 400 450 500 550
Cordwood cost, $ per cordCost ($) per MMBtu
Fuel Oil at $6.00 per gallon
Fuel Oil at $5.50 per gallon
Fuel Oil at $5.00 per gallon
Figure 5-1. Effect of Hemlock Cordwood (MC30) Price on Cost of Delivered Heat
5.2(b) Cost per MMBtu Sensitivity – Bulk Fuels
Figure 5-2 (next page) illustrates the relationship between the price of hemlock bulk fuel (MC50)
and the cost of delivered heat, (the slanted line). For each $10 per ton increase in the price of bulk
fuel, the cost per million Btu increases by about $2.55. The chart assumes that the bulk fuel boiler
converts 70% of the RHV energy in the wood to useful heat and that fuel oil is converted to heat at
80% efficiency. The dashed lines represent fuel oil at $5.00, $5.50 and $6.00 per gallon ($45.29,
$49.819 and $54.348 per million Btu respectively).
At standard efficiency, heat from hemlock bulk fuel (MC50) at $190.30 per ton is equal to the
current cost of oil at $5.35 per gallon ($48.46/MMBtu), before considering the investment and
OM&R costs. At 70% efficiency and $70/ton, a bulk fuel boiler will deliver heat at about 36.8% of
the cost of fuel oil at $5.35 per gallon ($17.825 versus $48.46 per MMBtu respectively). Figure
5-2 shows that, at a given efficiency, savings increase significantly with decreases in the delivered
price of bulk fuel and/or with increases in the price of fuel oil.
14
Cost ($) per MMBtu as a Function of
Bulk Fuel Cost
0.000
10.000
20.000
30.000
40.000
50.000
60.000
50 75 100 125 150 175 200
Bulk fuel cost, $ per tonCost ($) per MMBtu
Fuel Oil at $6.00 per gallon
Fuel Oil at $5.50 per gallon
Fuel Oil at $5.50 per gallon
Figure 5-2. Effect of Hemlock Bulk Fuel (MC50) Price on Cost of Delivered Heat
5.3 Determining Demand
Table 5-2 shows the reported approximate amount of fuel oil used by the Hoonah School, gym and
pool.
Table 5-2. Reported Annual Fuel Oil Consumption, Hoonah School and Gym/pool
Reported Annual Fuel Consumption Facility Gallons Cost ($) @ $5.35/gallon
Gym/pool 20,000 107,000
Hoonah School 30,000 160,500
Total 50,000 267,500
Wood boilers, especially cordwood boilers, are often sized to displace only a portion of the heating
load since the oil system typically remains in place, in standby mode, for “shoulder seasons” and
peak demand. Fuel oil consumption for the Hoonah School and gym/pool was compared with
heating demand based on heating degree days (HDD) to determine the required boiler capacity
15
(RBC) for heating only on the coldest 24-hour day (Table 5-3). While there are many factors to
consider when sizing heating systems it is clear that, in most cases, a wood system of less-than-
maximum size could still replace a substantial quantity of fuel oil.
NOTE: In the gym/pool building, much of the heat is used to maintain the pool water temperature,
not for space heating. However, the calculations in Table 5-3 were made as if all the fuel oil was
used for space heating.
Typically, installed oil-fired heating capacity at most sites is two to four times the demand for the
coldest day. The installed capacity at the school is slightly greater than four times the estimated
RBC and the installed capacity at the pool/gym is about 1.9 times the estimated RBC.
Manual HELE cordwood boilers, equipped with special tanks for extra thermal storage, can supply
heat at higher than their rated capacity for short periods. For example, while rated at 950,000
Btu/hr (heat into storage*), a trio of Garn® WHS 3200 boilers can store more than 6 million Btu,
which would be enough to heat the Hoonah School during the coldest 24-hour period for more than
6 hours (6,192,000 ÷ 970,396).
Table 5-3. Estimate of Heat Required in Coldest 24 Hr Period
Facility Fuel Oil Used
gal/yeara
Heating
Degree Daysd Btu/DDc Design
Tempd F
RBCe
Btu/hr
Installed
Btu/hra
Gym/pool 20,000 242,504 647,057 1,252,200
Hoonah School 30,000 363,756 970,396 4,100,000
Total 50,000
9,105
(Juneau data)
606,260
1
(Juneau data)
1,617,073 5,352,200
Table 3-7 Notes:
a From SOI and site visit; net Btu/hr
b NOAA, July 1, 2005 through June 30, 2006:
ftp://ftp.cpc.ncep.noaa.gov/htdocs/products/analysis_monitoring/cdus/degree_days/archives/Heating%20degree%20Days/Monthly%20City/2006/jun%202006.txt
c Btu/DD= Btu/year x oil furnace conversion efficiency (0.85) /Degree Days
d Alaska Housing Manual, 4th Edition Appendix D: Climate Data for Alaska Cities, Research and Rural Development
Division, Alaska Housing Finance Corporation, 4300 Boniface Parkway, Anchorage, AK 99504, January 2000.
e RBC = Required Boiler Capacity for the coldest Day, Btu/hr= [Btu/DD x (65 F-Design Temp)+DD]/24 hrs
* Btu/hr into storage is fuel dependent. The data provided for Garn boilers by Dectra Corp. is based on the
ASTM standard of split, 16-inch oak with 20 percent moisture content and reloading once an hour.
5.4 Summary of Findings
Table 5-4 summarizes the findings thus far: annual fuel oil usage, range of annual fuel oil costs, estimated annual wood fuel requirement,
range of estimated annual wood fuel costs, and potential gross annual savings for the Hoonah School and gym/pool. [Note: potential gross
annual fuel cost savings do not consider capital costs and non-fuel operation, maintenance and repair (OM&R) costs.]
Table 5-4. Estimate of Total Wood Consumption, Comparative Costs and Potential Savings
Annual Fuel Oil Cost
(@ $ ___ /gal) HOONAH SCHOOL and
GYM/POOL
Fuel Oil Used
gal/yeara
5.00 5.50 6.00
Approximate
Wood
Requirementb
Annual Wood Cost
(@ $ ___ /unit)
Potential Gross Annual
Fuel Cost Savings
($)
W. Hemlock, MC30,
CE 75% 175/cord 200/cord 225/cord Low Medium High
Cordwood system
555 cords 97,125 111,000 124,875 125,125 164,000 202,875
W. Hemlock, MC50,
CE 70% 70/ton 80/ton 90/ton Low Medium High
Bulk fuel system
50,000 250,000 275.000 300,000
1,405 tons 98,350 112,400 126,450 123,550 162,600 201,650
NOTES:
a From Table 5-2
b From Table D-3, Fuel Oil Equivalents
SECTION 6. ECONOMIC FEASIBILITY OF CORDWOOD SYSTEMS
6.1 Initial Investment Cost Estimates
DISCLAIMER: Short of having an actual Design & Engineering Report prepared by a team of
architects and/or engineers, actual costs for any particular system at any particular site cannot be
positively determined. Such a report is beyond the scope of this preliminary assessment. However,
several hypothetical systems are offered as a means of comparison. Actual costs, assumptions and
“guess-timates” are identified as such, where appropriate. Recalculations of financial metrics, given
different/updated cost estimates, are readily accomplished.
Wood heating systems include the cost of the fuel storage building (if necessary), boiler building
(if necessary), boiler equipment (and shipping), plumbing and electrical connections (including
plumbing, heat exchangers and electrical service to integrate with existing distribution systems),
installation, and an allowance for contingencies.
Before a true economic analysis can be performed, all of the costs (investment and OM&R) must
be identified, and this is where the services of qualified experts are necessary.
Table 6-1 (next page) presents hypothetical scenarios of initial investment costs for several
cordwood systems in a large heating demand situation. Three alternatives are presented.
Building(s) and plumbing/connections are the most significant costs besides the boiler(s). Building
costs deserve more site-specific investigation and often need to be minimized to the extent
possible. Piping from the wood-fired boiler is another area of potential cost saving. Long
plumbing runs and additional heat exchangers substantially increase project costs. The high cost of
hard copper and/or iron pipe normally used in Alaska now precludes its use in nearly all
applications. If plastic or PEX® piping is used significant cost savings may be possible.
Allowances for indirect non-capital costs such as engineering and contingency are most important
for large systems that involve extensive permitting and budget approval by public agencies. This
can increase the cost of a project by 25% to 50%. For the examples in Table 6-1, a 25%
contingency allowance was used.
NOTES:
a. With the exception of the list prices for Garn boilers, all of the figures in Table 6-1 are
estimates.
b. The cost estimates presented in Table 6-1 do not include the cost(s) of any upgrades or
improvements to the existing heating/heat distribution system currently in place.
c. These examples are based on the assumption that all current fuel oil use is used for space
heating, which is NOT the actual case. Some of the fuel oil is used to heat pool water or
domestic hot water, which may require a different set of calculations that are beyond the
scope of this report. Consultation with a qualified engineer is required.
18
Table 6-1. Initial Investment Cost Scenarios for Hypothetical Cordwood Systems
Fuel oil consumption
(gallons per year)
20,000
(Gym/pool only)
30,000
(School only)
50,000
(Gym/pool + School)
Required boiler capacity (RBC),
Btu/hr 647,057f 970,396 1,617,073f
Garn model Cordwood boiler
Btu/hre
(2) WHS 3200
1,900,000
(3) WHS 3200
2,850,000
(5) WHS 3200
4,750,000
Building and Equipment (B&E) Costs (for discussion purposes only)
Fuel storage buildinga
(fabric bldg, gravel pad, $20 per sf)
$88,800
(222 cords; 4,440 sq ft)
$133,200
(333 cords; 6,660 sq ft)
$222,000
(555 cords; 11,100 sq ft)
Boiler building @ $150 per sf
(minimum footprint w/concrete pad)b
$60,000
(20’ x 20’)
$90,000
(30’ x 20’)
$150,000
(50’ x 20’)
Boilers
Base pricec
Shippingd
$70,000
$8,000
$105,000
$12,000
$175,000
$20,000
Plumbing/connectionsd $60,000 $70,000 $130,000
Installationd $30,000 $35,000 $65,000
Subtotal - B&E Costs 316,800 445,200 762,000
Contingency (25%)d 79,200 111,300 190,500
Grand Total 396,000 556,500 952,500
Notes:
a A cord occupies 128 cubic feet. If the wood is stacked 6½ feet high, the area required to store the wood is 20 square feet per cord.
b Does not allow for any fuel storage within the boiler building
c List price, Alaskan Heat Technologies
d “guess-timate”; for illustrative purposes only
e Btu/hr into storage is extremely fuel dependent. The data provided for Garn boilers by Dectra Corp. are based on the ASTM standard of split, 16-inch oak
with 20 percent moisture content and reloading once an hour.
f Assumes all fuel oil used is used to provide space heat, which is NOT the actual case; a significant though undetermined portion is used to maintain pool water
temperatures and some is used for domestic hot water
6.2 Operating Parameters of HELE Cordwood Boilers
A detailed discussion of the operating parameters of HELE cordwood boilers can be found in
Appendix F.
6.3 Hypothetical OM&R Cost Estimates
The primary operating cost of a cordwood boiler, other than the cost of fuel, is labor. Labor is
required to move fuel from its storage area to the boiler building, fire the boiler, clean the boiler
and dispose of ash. For purposes of this analysis, it is assumed that the boiler system will be
operated 210 days (30 weeks) per year between mid-September and mid-April.
Table 6-2 (next page) presents labor/cost estimates for various HELE cordwood systems. A
detailed analysis of labor requirement estimates can be found in Appendix F.
19
Table 6-2. Labor/Cost Estimates for HELE Cordwood Systems
Facility Hoonah School and Gym/Pool
System (Garn Model) (2) WHS 3200
(Gym/pool only)
(3) WHS 3200
(School only)
(5) WHS 3200
(Gym/pool + School)
Total Daily labor (hrs/yr)
(hrs/day X 210 days/yr) 248.06 385.11 659.23
Total Periodic labor (hrs/yr)
(hrs/wk X 30 wks/yr) 222 333 555
Total Annual labor (hrs/yr) 40 60 100
Total labor (hrs/yr) 510.06 778.11 1,314.23
Total annual labor cost ($/yr)
(total hrs x $20) $10,201.20 $15,562.20 $26,284.60
Source: Appendix F, Tables F-2 and F-3
There is also an electrical cost component to the boiler operation. An electric fan creates the
induced draft that contributes to boiler efficiency. The cost of operating circulation pumps and/or
blowers would be about the same as it would be with the oil-fired boiler or furnaces in the existing
heating system.
Lastly, there is the cost of maintenance and repair items, such as fire brick, door gaskets, water
treatment chemicals, etc. For this exercise, a flat rate of $1,000 per boiler per year is used. The non-
fuel OM&R cost estimates are summarized in Table 6-3.
Table 6-3. Summary of Total Annual Non-Fuel OM&R Cost Estimates
Cost/Allowance ($)
Item (2) WHS 3200
(Gym/pool only)
(3) WHS 3200
(School only)
(5) WHS 3200
(Gym/pool + School)
Labor 10,201 15,562 26,285
Electricity 1,187 1,781 2,986
Maintenance/Repairs 2,000 3,000 5,000
Total non-fuel OM&R ($) $13,388 $20,343 $34,271
Notes for Table 6-3: a From Table 6-2
b Electrical cost based on a formula of horsepower x kWh rate x operating time. Assumed kWh rate = $0.60
6.4 Calculation of Financial Metrics
Biomass heating projects are viable when, over the long run, the annual fuel cost savings generated
by converting to biomass are greater than the cost of the new biomass boiler system plus the
20
additional operation, maintenance and repair (OM&R) costs associated with a biomass boiler
(compared to those of a fossil fuel boiler or furnace).
Converting from an existing boiler to a wood biomass boiler (or retrofitting/integrating a biomass
boiler with an existing boiler system) requires a greater initial investment and higher annual
OM&R costs than for an equivalent oil or gas system alone. However, in a viable project, the
savings in fuel costs (wood vs. fossil fuel) will pay for the initial investment and cover the
additional OM&R costs in a relatively short period of time. After the initial investment is paid off,
the project continues to save money (avoided fuel cost) for the life of the boiler. Since inflation
rates for fossil fuels are typically higher than inflation rates for wood fuel, increasing inflation rates
result in greater fuel cost savings and thus greater project viability.17
The potential financial viability of a given project depends not only on the relative costs and cost
savings, but also on the financial objectives and expectations of the facility owner. For this reason,
the impact of selected factors on potential project viability is presented using the following metrics:
Simple Payback Period
Present Value (PV)
Net Present Value (NPV)
Internal Rate of Return (IRR)
Total initial investment costs include all of the capital and non-capital costs required to design,
purchase, construct and install a biomass boiler system in an existing facility with an existing
furnace or boiler system.
A more detailed discussion of Simple Payback Period, Present Value, Net Present Value and
Internal Rate of Return can be found in Appendix E.
6.5 Simple Payback Period for Multiple HELE Cordwood Boilers
Table 6-4 presents a Simple Payback Period analysis for hypothetical multiple HELE cordwood
boiler installations.
Table 6-4. Simple Payback Period Analysis for HELE Cordwood Boilers
(2) WHS 3200
(Gym/pool only)
(3) WHS 3200
(School only)
(5) WHS 3200
(Gym/pool + School)
Fuel oil cost
($ per year @ $5.35 per gallon)
107,000
(20,000 gal)
160,500
(30,000 gal)
267,500
(50,000 gal)
Cordwood cost
($ per year @ $175 per cord)
38,850
(222 cds)
58,275
(333 cds)
97,125
(555 cds)
Annual Fuel Cost Savings ($) 68,150 102,225 170,375
Total Investment Costs ($)b 396,000 556,500 952,500
Simple Payback (yrs)c 5.81 5.44 5.59
Notes:
a From Table 6-3
b From Table 6-1
c Total Investment Costs divided by Annual Fuel Cost Savings
21
6.6 Present Value (PV), Net Present Value (NPV) and Internal Rate or Return (IRR)
Values for Multiple HELE Cordwood Boilers
Table 6-5 presents PV, NPV and IRR values for hypothetical multiple HELE cordwood boiler
installations.
Table 6-5. PV, NPV and IRR Values for Multiple HELE Cordwood Boilers
(2) WHS 3200
(Gym/pool only)
(3) WHS 3200
(School only)
(5) WHS 3200
(Gym/pool + School)
Discount Ratea (%) 3
Time, “t”, (years) 20
Initial Investment ($)b 396,000 556,500 952,500
Annual Cash Flow ($)c 54,762 81,882 136,104
Present Value
(of expected cash flows, $ at “t” years) 814,720 1,218,197 2,024,884
Net Present Value ($ at “t” years) 418,720 661,697 1,072,384
Internal Rate of Return (% at “t” years) 12.52 13.56 13.06
See Note # _ below 1 2 3
Notes:
a real discount (excluding general price inflation) as set forth by US Department of Energy, as found in NIST publication NISTIR 85-3273-22, Energy
Price Indices and Discount Factors for Life Cycle Cost Analysis – April 2007
b From Table 6-1
c Equals annual cost of fuel oil minus annual cost of wood minus annual non-fuel OM&R costs (i.e. Net Annual Savings)
Note #1. With a real discount rate of 3.00% and after a span of 20 years, the projected cash flows are worth
$814,720 today (PV), which is greater than the initial investment of $396,000. The resulting NPV of the
project is $418,720 and the project achieves an internal rate of return of 12.52% at the end of 20 years. Given
the assumptions and cost estimates, this alternative appears to be economically and operationally feasible.
Note #2. With a real discount rate of 3.00% and after a span of 20 years, the projected cash flows are worth
$1,218,197 today (PV), which is greater than the initial investment of $556,500. The resulting NPV of the
project is $661,697 and the project achieves an internal rate of return of 13.56% at the end of 20 years. Given
the assumptions and cost estimates, this alternative appears to be economically and operationally feasible.
Note #3. With a real discount rate of 3.00% and after a span of 20 years, the projected cash flows are worth
$2,024,884 today (PV), which is greater than the initial investment of $952,500. The resulting NPV of the
project is $1,072,384 and the project achieves an internal rate of return of 13.06% at the end of 20 years. Given
the assumptions and cost estimates, this alternative appears to be economically and operationally feasible.
6.7 The Case for Fuel Purchase Planning and Fuel Storage
Too often, a fuel storage building is omitted from a project in order to save the initial investment cost
and improve the cost-effectiveness of the project. This is FALSE ECONOMY. The importance of a
fuel storage building cannot be stressed enough, especially in southeast Alaska. With good planning,
fuel could be purchased a year or more in advance and be given sufficient time to dry, while incurring
no additional cost. And a fuel storage building can pay for itself in less time than the boiler!
22
Protected from the elements and provided with good air circulation, it is not unreasonable to expect
split and well-stacked cordwood to achieve moisture contents in the neighborhood of fiber saturation
point (approximately 23% on the wet weight basis) or less. The difference in heating value between
hemlock cordwood at MC30 (partially air-dried) and hemlock cordwood at MC23 (well air-dried) is
notable – about 13 percent more recoverable heat value (RHV) in the drier wood, which amounts to
about 1,700,000 Btu per cord. And instead of a cord replacing 90.05 gallons of #2 fuel oil, a cord
could now replace 101.5 gallons.
For the Hoonah school, gym and pool, this would mean that instead of having to buy 555 cords per
year, that fuel requirement becomes 493 cords, a savings of 62 cords and $10,850 per year (at $175
per cord). NOTE: There are also operational cost savings that can be realized due to fewer boiler
stokings, less ash removal/disposal, and less fuel handling.
The opposite is also true. Cordwood left exposed to the elements in southeast Alaska will not dry
much at all and may, in fact, gain moisture. The difference in total RHV Btu value between a cord of
hemlock at MC30 (partially air-dried) and a cord of hemlock at MC50 (“green”) is more than 4.84
million Btu. The wetter wood has roughly 63.5% of the heating value of the drier wood. In terms of
its #2 fuel oil equivalence, the value is 57.16 gallons per cord at MC50 compared to 90.05 gallons per
cord at MC30.
For the Hoonah school, gym and pool, this would mean that instead of having to buy 555 cords
(MC30) per year, that cordwood equivalent becomes 875 cords (“dead green”), an increase of 320
cords and $56,000 per year (at $175 per cord). NOTE: There are also operational cost increases that
would have to be incurred due to more frequent boiler stokings, more ash removal/disposal, and
additional fuel handling.
In summary:
875 cords of green wood per year at $175 = $153,125 versus 493 cords of well air-dried wood per
year at $175 = $86,275. The savings between green wood and well dried wood would be
$66,850/year. Given a fuel storage building costing $277,500 ($220,000 plus 25% contingency as
shown in Table 6-1), the simple payback would be about 4.15 years.
6.8 Life Cycle Cost Analysis
The National Institute of Standards and Technology (NIST) Handbook 135, 1995 edition, defines
Life Cycle Cost (LCC) as “the total discounted dollar cost of owning, operating, maintaining, and
disposing of a building or a building system” over a period of time. Life Cycle Cost Analysis
(LCCA) is an economic evaluation technique that determines the total cost of owning and
operating a facility over a period of time. Alaska Statute 14.11.013 directs the Department of
Education and Early Development (EED) to review school capital projects to ensure they are in the
best interest of the state, and AS 14.11.014 stipulates the development of criteria to achieve cost
effective school construction.19
While a full-blown life cycle cost analysis is beyond the scope of this preliminary feasibility
assessment, an attempt is made to address some of the major items and run a rudimentary LCCA
using the Alaska EED LCCA Handbook and spreadsheet.
According to the EED LCCA Handbook, the life cycle cost equation can be broken down into three
variables: the costs of ownership, the period of time over which the costs are incurred
(recommended period is 20 years), and the discount rate that is applied to future costs to equate
them to present costs.
23
There are two major costs of ownership categories: initial expenses and future expenses. Initial
expenses are all costs incurred prior to occupation (or use) of a facility, and future expenses are all
costs incurred upon occupation (or use) of a facility. Future expenses are further categorized as
operation costs, maintenance and repair costs, replacement costs, and residual value. A
comprehensive list of items in each of these categories is included in the EED LCCA Handbook.
The discount rate is defined as, “the rate of interest reflecting the investor’s time value of money”,
or, the interest rate that would make an investor indifferent as to whether s/he received payment
now or a greater payment at some time in the future. NIST takes the definition a step further by
separating it into two types: real discount rates and nominal discount rates. The real discount rate
excludes the rate of inflation and the nominal discount rate includes the rate of inflation.19 The
EED LCCA Handbook and spreadsheet focuses on the use of real discount rates in the LCC
analysis.
To establish a standard discount rate for use in the LCCA, EED adopted the US Department of
Energy’s (DOE) real discount rate. This rate is updated and published annually in the Energy Price
Indices and Discount Factors for Life Cycle Cost Analysis – Annual Supplement to NIST
Handbook 135 (www1.eere.energy.gov). The DOE discount and inflation rates for 2008 are as
follows:
Real rate (excluding general price inflation) 3.0%
Nominal rate (including general price inflation) 4.9%
Implied long term average rate of inflation 1.8%
Other LCCA terms
Constant dollars: dollars of uniform purchasing power tied to a reference year and exclusive of
general price inflation or deflation
Current dollars: dollars of non-uniform purchasing power, including general price inflation or
deflation, in which actual prices are stated
Present value: the time equivalent value of past, present or future cash flows as of the beginning of
the base year.
NOTE: When using the real discount rate in present value calculations, costs must be expressed in
constant dollars. When using the nominal discount rate in present value calculations, costs must be
expressed in current dollars. In practice, the use of constant dollars simplifies LCCA, and any
change in the value of money over time will be accounted for by the real discount rate.
LCCA Assumptions
As stated earlier, it is beyond the scope of this pre-feasibility assessment to go into a detailed life
cycle cost analysis. However, a limited LCCA is presented here for purposes of discussion and
comparison.
Time is assumed to be 20 years, as recommended by EED
The real discount rate is 3%
Initial expenses as per Table 6.1
Future expenses as per Table 6.3
Replacement costs – not addressed
Residual value – not addressed
24
Cordwood Boiler Alternatives
Alternative 1 represents the existing oil-fired boiler systems. The initial investment was assumed
to be $100,000. The operation costs included 50,000 gallons of #2 fuel oil at $5.35 per gallon and
40 hours of labor per year at $20 per hour. The annual maintenance and repairs costs were
assumed to be $2,000 and no allowances were made for replacement costs or residual value.
NOTE: The value of the existing boiler system ($100,000), the amount and cost of labor (40 hours,
$800), and maintenance and repair costs ($2,000) are fictitious, but are held constant for
comparative purposes as appropriate.
Alternative 2 represents the existing oil-fired boiler systems, which would remain in place, plus the
installation of five Garn WHS 3200 wood fired boilers. The initial investment was assumed to be
$1,052,500, which includes the hypothetical value of the existing oil-fired boilers (valued at
$100,000 as per Alternative 1) plus the initial investment cost of the Garn boiler system ($952,500,
as per Table 6-1). The operation costs include 555 cords of fuelwood at $175 per cord and
1,314.23 hours of labor per year at $20 per hour (as per Table 6-2). The annual utility,
maintenance and repair costs were assumed to be $7,986 (as per Table 6-3) for the system and no
allowances were made for replacement costs or residual value.
The hypothetical EED LCCA results for the Hoonah School/gym/pool cordwood boiler alternative
are presented in Table 6-6.
Table 6-6. Estimated Life Cycle Costs of Cordwood System Alternative
Alternative 1
(existing boilers)
Alternative 2
(existing boilers plus HELE
cordwood boilers)
Initial Investment Cost $100,000 $1,002,500
Operations Cost $3,991,627 $1,836,023
Maintenance & Repair Cost $29,755 $118,812
Replacement Cost $0 $0
Residual Value $0 $0
Total Life Cycle Cost $4,121,381 $2,957,335
SECTION 7. ECONOMIC FEASIBILITY OF BULK FUEL SYSTEMS
A typical bulk fuel boiler system includes bulk fuel storage, boiler building, wood-fuel handling
systems, combustion chamber, boiler, ash removal, cyclone, exhaust stack and electronic controls.
The variables in this list of system components include the use of silos or bunkers of various sizes
for wood fuel storage, chip storage areas of various sizes, boiler buildings of various configura-
tions, automated versus manual ash removal and cyclones for particulate removal (if necessary).17
7.1 Capital Cost Components
As indicated, bulk fuel systems are larger, more complex and often more costly to install and
integrate with existing boiler and distribution systems. Before a true economic analysis can be
25
performed, all of the costs (capital, non-capital and OM&R) must be identified, and this is where
the services of architects and civil and mechanical engineers are necessary.
Table 7-1 outlines the various general components for a hypothetical, small bulk fuel system;
however it is beyond the scope of this report to offer estimates of actual costs for those
components. As an alternative, a range of likely total costs is presented and analyzed for
comparative purposes.
Table 7-1. Initial Investment Cost Components for Bulk Fuel Systems
Facility Hoonah school, gym and pool
(50,000 gallons/year; 1,405 tons/year, (MC50))
Capital Costs: Building and Equipment (B&E)
Fuel storage building ?
Material handling system ?
Boiler building ?
Boiler: base price
shipping ?
Plumbing/connections ?
Electrical systems ?
Installation ?
Non-capital Costs
Engineering , Permitting, Contingency, etc.?
Initial Investment Total ($) $1,000,000 to $2,000,000
The investment cost of bulk fuel systems installed in institutional settings can range from $500,000
to over $2 million, with about $350,000 to $900,000 in equipment costs. Fuel handling and boiler
equipment for an 8 MMBtu/hr (300 BHP) system was recently quoted to a school in the northeast
USA for $900,000. The cost of a boiler and fuel handling equipment for a 3 to 4 MMBtu/hr system
is about $350,000 to $500,000. The 2.4 MMBtu/hr system in Hoonah was installed at a sawmill
for around $250,000, but an existing building was used and there were significant economies in
fuel preparation and fuel handling that would be unacceptable in a non-industrial, setting. Fuel and
boiler equipment for a 1 MMBtu per hour system is estimated at $250,000 to $300,000 (buildings
are extra). Several schools in New England have been able to use existing buildings or boiler
rooms to house new equipment and realize substantial savings, but recent school projects in
Montana were all installed in new buildings.4
The cost of a bulk fuel heating system at the Craig School and Aquatic Center in Craig, AK was
originally estimated at less than $1 million, designed to replace propane and fuel oil equivalent to
36,000 gallons of fuel oil. But the results of a January 2007 bid opening brought the cost to $1.85
million. The fuel storage and boiler building, fuel dryer, and system integration costs for the pool
and two schools increased the project costs. NOTE: The City of Craig undertook construction of
the project using a “force account” and brought the final cost down to about $1.5 million.
26
Table 7-2 shows the total costs (in 2005) for the Darby School (Darby, MT) project at $1,001,000
including $268,000 for repairs and upgrades to the pre-existing heating system. Integration with any pre-
existing system will likely require repairs and rework that must be included in the wood system cost.
Adding the indirect costs of engineering, permits, etc. to the equipment cost put the total cost at Darby
between $716,000 and $766,000 for the 3 million Btu/hr system to replace 47,000 gallons of fuel oil per
year. Since the boiler was installed at Darby, building and equipment costs have increased from 10% to
25% (as of 2007). A new budget price for the Darby system might be closer to $800,000 excluding the
cost of repairs to the existing system.4
Table 7-2. Darby, MT Public School Wood Chip Boiler Costs a
Boiler Capacity 3 MMBtu/hr
Fuel Oil Displaced 47,000 gallons
Heating Degree Days 7,186
System Costs:
Building, Fuel Handling $ 230,500
Boiler and Stack $ 285,500
Boiler system subtotal $ 516,000
Piping, integration $ 95,000
Other repairs, improvements $ 268,000
Total, Direct Costs $ 879,000
Engineering, permits, indirect $ 122,000
Total Cost $1,001,000
a Biomass Energy Resource Center, 2005 4
The following is an excerpt from the Montana Biomass Boiler Market Assessment17:
“To date, CTA [CTA Architects and Engineers, Billings, MT] has evaluated more than 200
buildings throughout the northwestern United States and designed 13 biomass boiler projects, six of
which are now operational. Selected characteristics of these projects, including total project cost,
are presented in Table 1 [7-3]. As can be seen from Table 1 [7-3], total costs for these projects do
not correlate directly with boiler size. The least expensive biomass projects completed to date cost
$455,000 (not including additional equipment and site improvements made by the school district)
for a wood chip system in Thompson Falls, Montana. The least expensive wood pellet system is
projected to cost $269,000 in Burns, Oregon. The general breakdown of costs for these two projects
is presented in Tables 2 [7-4] and 3.”
NOTE: Information related to wood pellet systems was not included in this report as wood
pellets are not readily available as a fuel in southeast Alaska.
27
Table 7-3. Characteristics of Biomass Boiler Projects17
Facility
Name Location Boiler Size
(MMBtu/hr output) Project Type
Wood
Fuel
Type
Total
Project
Cost
Thompson
Falls School
District
Thompson
Falls, MT 1.6 MMBtu Stand-alone boiler building
tied to existing steam system Chips $ 455,000
Glacier High
School
Kalispell,
MT 7 MMBtu
New facility with integrated
wood chip and natural gas
hot water system
Chips $ 480,000
Victor School
District Victor, MT 2.6 MMBtu Stand-alone boiler building
tied to existing steam system Chips $ 615,000
Philipsburg
School District
Philipsburg,
MT 3.87 MMBtu
Stand-alone boiler building
tied to existing hot water
system
Chips $ 684,000
Darby School
District Darby, MT 3 MMBtu
Stand-alone boiler building
tied to existing steam & hot
water system
Chips $1,001,000
City of Craig Craig, AK 4 MMBtu
Stand-alone boiler building
tied to existing hot water
systems
Chips $1,500,000
Univ. MT
Western Dillon, MT 14 MMBtu Addition to existing steam
system Chips $1,400,000
Table 7-4. Cost Breakdown for the Least Expensive Wood Chip Boiler System Installed in a
New Free-Standing Building 17
System Component Cost % of Total
Wood Boiler System Equipment $136,000 30%
Building $170,000 38%
Mechanical/Electrical $100,000 22%
Mechanical Integration $15,000 3%
Fees, Permits, Printing, Etc. $34,000 7%
Total* $455,000* 100%
* not including additional equipment and site improvements made by the school district
7.2 Generic OM&R Cost Allowances
The primary operating cost is fuel. The estimated bulk fuel cost for the Hoonah school, gym and
pool is $98,350 (1,405 tons @ $70/ton). Other O&M costs would include labor, electricity, and
maintenance and repair costs. For purposes of this analysis, it is assumed that the boiler will
operate daily, 210 days (30 weeks) per year, from mid-September through mid-April.
Daily labor would consist of monitoring the system and performing daily inspections as prescribed
by the system manufacturer. It is assumed that the average daily labor requirement is ½ hour. An
additional 2 hours per week is allocated to perform routine maintenance tasks. Therefore, the total
annual labor requirement estimate is (210 x 0.5) + 60 = 165 hours per year. At $20 per hour, the
annual labor cost would be $3,300.
28
There is also an electrical cost component to the boiler operation. Typically, electrically-powered
conveyors of various sorts are used to move fuel from its place of storage to a metering bin and into
the boiler. There are also numerous other electrical systems that operate various pumps, fans, etc.
The Darby High School system in Darby, MT, which burned 755 tons of bulk fuel in 2005, used
electricity in the amount of $2,035,18 however the actual kWh or cost per kWh were not reported.
Another report17 proffered an average electricity cost for Montana of $0.086 per kWh. If that rate
is true for Darby, then the electrical consumption would have been about 23,663 kWh. The
Hoonah school, gym and pool system is projected to use 1,405 tons of bulk fuel (1.86 times the
amount used at Darby). If it is valid to apportion the electrical usage based on bulk fuel
consumption, then the Hoonah school, gym and pool system would use about 44,013 kWh per year.
At $0.60 per kWh, the annual electric bill would be $26,408.
Lastly, there is the cost of maintenance and repair. Bulk fuel systems with their conveyors, fans,
bearings, motors, etc. have more wear parts. An arbitrary allowance of $5,000 is made to cover
these costs.
Total annual operating, maintenance and repair cost estimates for a bulk fuel boiler at the Hoonah
school, gym and pool are summarized in Table 7-5
Table 7-5. Total OM&R Cost Allowances for a Bulk Fuel System
Item Cost/Allowance
Non-Fuel OM&R
Labor ($) 3,300
Electricity ($) 26,408
Maintenance ($) 5,000
Total, non-fuel OM&R 34,708
Wood fuel ($) 98,350
Total OM&R ($) 133,058
7.3 Calculation of Financial Metrics
A discussion of Simple Payback Period can be found in Appendix E.
A discussion of Present Value can be found in Appendix E.
A discussion of Net Present Value can be found in Appendix E.
A discussion of Internal Rate of Return can be found in Appendix E.
7.4 Simple Payback Period for Generic Bulk Fuel Boilers
Table 7-6 (next page) presents Simple Payback Period analysis for a range of initial investment
cost estimates for generic bulk fuel boiler systems.
29
Table 7-6. Simple Payback Period Analysis for Bulk Fuel Heating Systems
Hoonah school, gym and pool
(50,000 gpy; 1,405 tons/yr)
Fuel oil cost
($ per year @ $5.35 per gallon 267,500
Bulk wood fuel
($ per year @ $70 per ton) 98,350
Annual Fuel Cost Savings ($) 169,150
Total Investment Costs ($) 750,000 1,000,000 1,250,000 1,500,000 1,750,000 2,000,000
Simple Payback (yrs)a 4.43 5.91 7.39 8.87 10.34 11.82
a Simple Payback equals Total Investment Costs divided by Annual Fuel Cost Savings
While simple payback has its limitations in terms of project evaluations, one of the conclusions of
the Montana Biomass Boiler Market Assessment was that viable projects had simple payback
periods of 10 years or less.17
7.5 Present Value (PV), Net Present Value (NPV) and Internal Rate of Return (IRR)
Values for a Hypothetical Bulk Fuel Boiler Installed at the Hoonah school/gym/pool
Table 7-7 presents PV, NPV and IRR values for hypothetical bulk fuel boilers.
Table 7-7. PV, NPV and IRR Values for Bulk Fuel Systems
Discount Rate 3
Time, “t”, (years) 20
Initial Investment ($)a 750,000 1,000,000 1,250,000 1,500,000 1,750,000 2,000,000
Annual Cash Flow ($)b 134,442
Present Value (of expected cash
flows), ($ at “t” years) 2,000,157
Net Present Value ($ at “t” years) 1,250,157 1,000,157 750,157 500,157 250,157 157
Internal Rate of Return (%) 17.17 12.07 8.74 6.34 4.49 3.00
Notes:
a from Table 7-6
b Equals annual cost of fuel oil minus annual cost of wood minus annual non-fuel OM&R costs
30
SECTION 8. CONCLUSIONS
This report discusses conditions found “on the ground” at the Hoonah school, gym and pool in
Hoonah, Alaska, and attempts to demonstrate, by use of realistic, though hypothetical examples,
the feasibility of installing high efficiency low emission cordwood and/or bulk fuel wood boilers
for heating these facilities.
Wood is a viable heating fuel in a wide range of institutional applications, however, below a certain
minimum and above a certain maximum, it may be impractical to heat with wood, or it may require
a different form of wood fuel and/or heating system. The difference in the cost of heat derived
from wood versus the cost of heat derived from fuel oil is significant, as illustrated in Table 5-1. It
is this difference in the cost of heat, resulting in monetary savings that must “pay” for the
substantially higher investment and OM&R costs associated with wood fuel systems.
The Hoonah school, gym and pool, taken together, can be considered “large” in terms of their total
fuel oil consumption (50,000 gpy). It appears possible to heat these buildings (and pool),
separately or together, with a cordwood heating system. Taken as a single project, it may be large
enough to justify the installation of a bulk fuel wood heating system if investment costs can be
controlled and a reliable consistent fuel supply identified.
The topography around the school, gym and pool is hilly, but there is a level area behind the school
(currently serving as a ball field and playground) that would be suitable for either a cordwood or
bulk fuel biomass heating system. Delivery trucks can access the site, perhaps with some slight
difficulty, and the proximity of the site to the buildings to be heated is reasonable. It may even be
possible/feasible to tie-in the police department building and fire hall, which are up the street.
8.1 Cordwood Systems
To replace 50,000 gallons of #2 fuel oil per year would require approximately 555 cords of
reasonably dry (MC30) hemlock cordwood or large sawmill residues.
Examples of installing and operating multiple, large cordwood boilers are presented in Section 6.
In order to supply enough heat for both the school and the gym/pool, a total of five large HELE
boilers would have to be installed. And in order to consume 555 cords of wood per year those
boilers would require an average of 3.7 firings per day (See Appendix F). If provisions are made to
capture waste heat from the diesel generators to heat the school, a cordwood boiler system
consisting of two large boilers would be necessary to provide heat to the gym/pool. And even
though this would be a much smaller system, this option still appears quite cost-effective.
Initial investment costs for the installation of multiple cordwood boilers ranged from about
$396,000 (for the gym/pool alone) to $952,000 (for the combined school + gym/pool), with the
cost of the fuel storage building being the single most costly item ($111,000 to $278,000).
However, each boiler installation scenario returned positive financial metrics with simple payback
periods ranging from 5.44 to 5.81 years, and internal rates of return ranging from 12.52 to 13.56
percent.
8.2 Bulk Fuel System
To replace 50,000 gallons of fuel oil per year would require approximately 1,405 tons
(approximately sixty-four 40-foot tractor trailer loads) of bulk fuel (chips, sawdust, bark, shavings,
etc.), assuming such fuel runs 50% moisture content (MC50).
31
Although it is beyond the scope of this assessment to delve into the detailed costs associated with
the installation of bulk fuel systems, it is not unrealistic to say that, at 50,000 gallons of fuel oil per
year, it appears quite likely that a bulk fuel system could be cost-effective for the Hoonah
school/gym/pool IF:
1. a reliable, consistent source of fuel can be identified
2. fuel can be delivered at a reasonable cost
3. total investment costs can be held to less than $2,000,000
If provisions are made to capture waste heat from the diesel generators to heat the school, then a
bulk fuel boiler system would probably not be cost-effective for heating the gym/pool given the
considerably smaller heating load (i.e., 20,000 gpy). A cordwood system would then be the better
option.
Hoonah Pool and Gym
Hoonah City School District
Funded by:
Final Report
November 2011
Prepared by:
Energy Audit
Table of Contents
Section 1: Executive Summary 3
Section 2: Introduction 7
Section 3: Energy Efficiency Measures 11
Section 4: Description of Systems 17
Section 5: Methodology 19
Appendix A: Energy and Life Cycle Cost Analysis 22
Appendix B: Energy and Utility Data 32
Appendix C: Equipment Data 39
Appendix D: Abbreviations 41
Audit Team
The energy audit is performed by Alaska Energy Engineering LLC of Juneau, Alaska. The audit team
consists of:
Jim Rehfeldt, P.E., Energy Engineer
Jack Christiansen, Energy Consultant
Brad Campbell, Energy Auditor
Loras O’Toole P.E., Mechanical Engineer
Will Van Dyken P.E., Electrical Engineer
Curt Smit, P.E., Mechanical Engineer
Philip Iverson, Construction Estimator
Karla Hart, Technical Publications Specialist
Jill Carlile, Data Analyst
Grayson Carlile, Energy Modeler
Hoonah Pool and Gym 1 FINAL Energy Audit (November 2011)
Section 1
Executive Summary
An energy audit of the Hoonah Pool and Gym was performed by Alaska Energy Engineering LLC.
The investment grade audit was funded by Alaska Housing Finance Corporation (AHFC) to identify
opportunities to improve the energy performance of public buildings throughout Alaska.
The Hoonah Pool and Gym is a 27,725 square foot building that contains commons, concessions,
restrooms, locker rooms, a weight room, a classroom, a pool, a gym, storage spaces, and mechanical
support spaces.
Building Assessment
The following summarizes our assessment of the building.
Envelope
The exterior of the building was recently re-sided and is in excellent shape with the exception of the
lower section of the siding that was installed improperly. Maintenance staff has scheduled necessary
repairs with the siding contractor to correct this deficiency.
The exterior doors are not thermally broken. Future exterior door replacement selection should
include this feature. There are two exterior doors with single pane 12” x 12” glazings, one of which is
broken. The existing broken glazing should be repaired. Future door selections that include glazings
should always include high efficiency double pane glazing selections.
Windows are aluminum clad wood-frame single-pane units with interior removable storm windows.
Upgrading these units is outlined in Section 3, Energy Efficiency Measure 16.
Inspection of the attic above the upstairs weight room and storage area by audit staff revealed a 2’ x
4’ section of missing insulation and vapor barrier that allows air and heat from conditioned spaces to
flow from the interior of the building to the portion of the attic that is directly vented to the outside.
This should be repaired as soon as possible.
The exterior wall and ceiling of the natatorium incorporate a unique but potentially problematic
design. AHU-5 supplies heated outside air to a plenum space between the interior surface and the
insulated exterior wall cavity to preclude the movement of warm, moist pool air through the wall
assembly. The system is dependent upon continuously pressurizing the plenum with warm, dry air.
The AHU-5 supply air temperature was increased from 55°F to 85°F during the audit to ensure that
any leakage from the plenum will dry the insulated assembly.
Hoonah Pool and Gym 2 FINAL Energy Audit (November 2011)
Heating System
The building and the pool are heated by two fuel oil boilers that provide heat to five air handling unit
systems, fan coil units, the pool heating system, and perimeter hydronic systems.
At the time of the audit Boiler #3 was running and Boiler #4 was on-line and not isolated. Circulating
heating water through a non-necessary boiler results in a significant amount of heat losses. This is
covered with recommendations in the report. The temperature band for the lead and lag boilers was
set at 160°F – 180°F for the lead boiler and 150°F – 170°F for the lag boiler. A 30° delta T should be
utilized to reduce boiler cycles and optimize boiler efficiency, i.e. 150° F – 180°F and 140°F to
170°F.
The domestic hot water system is oversized and inefficient. The oil-fired hot water heater is past its
useful life. These components should be replaced with two indirect hot water tanks in the proposed
renovation project.
The remainder of the fuel oil boiler heating system appears to be in good condition; however fairly
simple improvements can be made to improve its effectiveness and efficiency. These are outlined in
the Energy Efficiency Measures section of this report.
A much cheaper heated water source under the IPEC waste heat project appears to soon
be a reality. The pool and gym building will be allowed a flow of 55 gpm or 550 MBH.
This heat can be interrupted by the utility at any time and the available capacity is less
than the heating load on cold days. As such, a fuel oil boiler must remain in standby
mode to operate when needed.
The waste heat system should not only be viewed as a potential operational savings, but
should also represent an opportunity to use these operational savings as a capital
funding source to upgrade and improve the efficiency of the building. Opportunities
include:
Optimize control sequences for the HVAC systems
Replace the domestic hot water system with two indirect hot water tanks.
Continuing efforts to reduce all building heating loads as much as possible so
the waste heat system can supply a greater percentage of the heating load.
Hoonah Pool and Gym 3 FINAL Energy Audit (November 2011)
Ventilation System
The building ventilation systems consists of five large air handling units, one supply fan, and one
exhaust fan for the purposes of heating and cooling spaces and improving building air quality. The
overall condition of the ventilation systems is good and routine preventive maintenance tasks are
being scheduled and performed.
The natatorium air handling unit AHU-2 humidity sensor is not operating properly and the heating
coil is unable to maintain the setpoint of 88°F. The turn vanes on EF-2 are not operating properly.
The supply air setpoint for AHU-5 which also provides heated outside air to the natatorium was
raised from 55°F to 85°F to preclude condensation in the ceiling and wall cavities.
Audit staff were impressed by the pool cover system that is in use at the facility. The cover deploys
and retracts easily and reduces energy use by minimizing evaporative heat loss and the subsequent
need for ventilation air to control humidity.
Lighting
Interior lighting consists primarily of T12 and metal halide lighting. Exterior lighting consists
primarily of metal halide lighting. Because lighting operational hours are controlled by staff,
operational costs for lighting with existing infrastructure are kept to a minimum. Replacement of
existing fixtures with more efficient units and the addition of occupancy sensors are solutions for
further reductions in operational costs.
Exterior lighting is unevenly distributed. Portions of the perimeter of the building are too bright while
other portions are too dark.
Summary
It is the assessment of the energy audit team that the majority of the building energy losses are due to
the need to optimize ventilation rates and schedules in accordance with occupancy followed by a
retro-commissioning of the ventilation equipment, boiler and boiler pump setpoints and controls, the
inefficient T12 fluorescent lighting, and the metal halide pendant lighting in the pool and gym areas.
These measures cannot be corrected by operational modifications alone.
The Pool and Gym building is covered under the Power Cost Equalization program which reduces
electrical costs paid directly paid by the Hoonah City School District from $0.62/kwh to $0.16/kwh.
While the school may pay only $0.16/kwh for the electricity to operate the Gym and Pool Building,
the true cost of energy to the community of Hoonah and the State of Alaska is still the $0.62/kwh rate.
Energy efficiency measures discussed within this report are based on the higher rate. There are two
very fundamental reasons for this approach; first, any electrical savings that can be identified under
the higher rate at the Gym and Pool Building will allow Hoonah to apply their available funding
under the PCE program to additional community-use buildings. Secondly, an approach based on
preserving all sources of funding that are used to pay the Gym and Pool electrical utility bills –
including State subsidies under the PCE program – will support the longer-term sustainability of the
PCE program. It must be recognized that the PCE program is subject to funding and political changes.
Long-term operational decisions should be evaluated with this in mind.
Hoonah Pool and Gym 4 FINAL Energy Audit (November 2011)
Energy Efficiency Measures (EEMs)
All buildings have opportunities to improve their energy efficiency. The energy audit revealed several
opportunities in which an efficiency investment will result in a net reduction in long-term operating
costs.
Behavioral and Operational EEMs
The following EEMs require behavioral and operational changes in the building use. The savings are
not readily quantifiable but these EEMs are highly recommended as low-cost opportunities that are a
standard of high performance buildings.
EEM-1: Re-install Attic Insulation
EEM-2: Replace Domestic Hot Water System
High and Medium Priority EEMs
The following EEMs are recommended for investment. They are ranked by life cycle savings to
investment ratio (SIR). This ranking method places a priority on low cost EEMs which can be
immediately funded, generating energy savings to fund higher cost EEMs in the following years.
Negative values, in parenthesis, represent savings.
25-Year Life Cycle Cost Analysis
Investment Operating Energy Total SIR
High Priority
EEM-3: Perform a Boiler Combustion Test $700 $16,300 ($47,300) ($30,300) 44.3
EEM-4: Replace Aerators $1,400 $0 ($19,100) ($17,700) 13.6
EEM-5: Install Lobby Lighting Switch $3,600 ($700) ($23,200) ($20,300) 6.6
EEM-6: Optimize All Ventilation Systems $172,300 $8,500 ($1,121,900) ($941,100) 6.5
EEM-7: Install Domestic HWRP Control $500 $0 ($2,900) ($2,400) 5.8
EEM-8: Upgrade Motors to Premium Efficiency $12,600 $0 ($72,200) ($59,600) 5.7
EEM-9: Install Auto Valves on Unit Heaters $3,900 $0 ($19,900) ($16,000) 5.1
Medium Priority
EEM-10: Install Modulating Boiler Burners $39,000 $17,000 ($141,900) ($85,900) 3.2
EEM-11: Isolate Lag Boiler $19,100 $0 ($55,500) ($36,400) 2.9
EEM-12: Upgrade Gym Lighting $23,400 ($1,700) ($58,100) ($36,400) 2.6
EEM-13: Install Toilet Room Occupancy Sensors $3,600 ($200) ($5,100) ($1,700) 1.5
EEM-14: Upgrade Pool Lighting $17,100 ($1,000) ($22,800) ($6,700) 1.4
EEM-15: Upgrade Interior Lighting $40,300 ($5,500) ($44,400) ($9,600) 1.2
EEM-16: Replace Single-pane Windows $49,400 $0 ($56,000) ($6,600) 1.1
Total* $386,900 $32,700 ($1,690,300) ($1,270,700) 4.3
*The analysis is based on each EEM being independent of the others. While it is likely that some
EEMs are interrelated, an isolated analysis is used to demonstrate the economics because the audit
team is not able to predict which EEMs an Owner may choose to implement. If several EEMs are
implemented, the resulting energy savings is likely to differ from the sum of each EEM projection.
Hoonah Pool and Gym 5 FINAL Energy Audit (November 2011)
Summary
The energy audit revealed numerous opportunities for improving the energy performance of the
building. It is recommended that the behavioral and high priority EEMs be implemented now to
generate energy savings from which to fund the medium priority EEMs.
Another avenue to consider is to borrow money from AHFCs revolving loan fund for public
buildings. AHFC will loan money for energy improvements under terms that allow for paying back
the money from the energy savings. More information on this option can be found online at
http://www.ahfc.us/loans/akeerlf_loan.cfm.
Hoonah Pool and Gym 6 FINAL Energy Audit (November 2011)
Section 2
Introduction
This report presents the findings of an energy audit of the Hoonah Gym and Pool located in Hoonah,
Alaska. The purpose of this investment grade energy audit is to evaluate the infrastructure and its
subsequent energy performance to identify applicable energy efficiencies measures (EEMs).
The energy audit report contains the following sections:
Introduction: Building use and energy consumption.
Energy Efficiency Measures: Priority ranking of the EEMs with a description, energy
analysis, and life cycle cost analysis.
Description of Systems: Background description of the building energy systems.
Methodology: Basis for how construction and maintenance cost estimates are derived and the
economic and energy factors used for the analysis.
BUILDING USE
The Hoonah Gym and Pool is a 27,725 square foot building that contains commons, concessions,
restrooms, locker rooms, a weight room, a classroom, a pool, a gym, storage spaces, and mechanical
support spaces.
The pool equipment and ventilation systems are operated continuously to maintain water and indoor
air quality. The pool facilities are utilized by approximately 30 children for a one-hour open swim and
six adults for a one-hour lap swim every Tuesday, Thursday, and Saturday. In addition, 15 children
attend one-hour swim lessons on Tuesday and Thursday.
The Gym facilities are used for three classes during the school day, a session of open gym after
school, and for school sporting activities until approximately 7:00 pm every evening.
The facility is scheduled in the following manner:
Pool: 5:00 pm – 6:00 pm (T, Th, Sa) Kids Open Swim
7:00 pm – 8:00 pm (T, Th, Sa) Adult Lap Swim
Gym: 8:00 am – 10:15 am (M-F) Class
11:30 am – 12:00 pm (M-F) Class
2:00 pm – 3:15 pm (M-F) Class
3:15 pm – 4:00 pm (M-F) Open Gym
4:00 pm – 5:00 pm (M-F) Wrestling Practice
5:00 pm – 7:00 pm (M-F) Volleyball Practice
Building History
1985 – Original Construction of Pool
2005 – Remodel and Gym Addition
2011 – Re-siding Project
Hoonah Pool and Gym 7 FINAL Energy Audit (November 2011)
Energy Consumption
The building energy sources include an electric service and a fuel oil tank. Fuel oil is used for the
majority of the heating loads and domestic hot water while electricity serves all other loads. The
following table shows annual energy use and cost.
Annual Energy Consumption and Cost
Source Consumption Cost Energy, MMBtu
Electricity 87,000 kWh $54,500 300 16%
Fuel Oil 11,900 Gallons $55,100 1,620 84%
Totals $109,600 1,920 100%
Electricity
This chart shows electrical energy use from 2007 to 2010.
The following observations are noted from the data:
The spike in consumption during July 2007 was due to an increase in system operating hours
during an automatic control modification project.
Electricity use dropped significantly in 2009 when effective energy conservation measures
were put into effect by maintenance staff.
Consumption increased slightly in 2010 due to scaling back of some of the energy
conservation measures.
The effective cost—energy costs plus demand charges—is 62.6¢ per kWh. The Power Cost
Equalization program reduces the cost to the community to 16¢ per kWh.
Hoonah Pool and Gym 8 FINAL Energy Audit (November 2011)
Fuel Oil
This chart shows heating
energy use from 2007 to
2010. The chart
compares annual use
with the heating degree
days (a measurement of
the demand for energy to
heat a building). A year
with a higher number of
degree days reflects
colder outside
temperatures and a
higher heating
requirement.
Fuel oil consumption decreased in 2009 due to implementation of energy efficiency measures by
maintenance staff. The slight increase in 2010 was due to scaling back on some of the efficiency
measures.
Water Use
Prior to operation of the pool,
annual water consumption
averaged 4,500 gallons per
month. Usage has increased to
25,000 gallons per month. The
increase is due to pool
evaporation, filter backwashing,
and showers. The annual water
consumption trend is at the
right. The 2011 usage includes a
100,000 gallon spike in the
months preceding pool opening
for cleaning and filling the pool.
Pool Energy Use
The pool was returned to service in June of 2011. Heating the pool and operating the ventilation
systems will increase energy consumption. A review of the available data from June to September,
2011 shows that electricity use increased by 3,300 kWh per month and fuel oil use increased by 440
gallons per month. While the electricity consumption can be assumed to be consistent through the
year, fuel oil use will increase during the winter. A rough prediction shows that fuel oil use is likely to
increase by 21,000 gallons per year to heat the pool. The total cost at current energy costs is estimated
at $122,000 per year.
Hoonah Pool and Gym 9 FINAL Energy Audit (November 2011)
Cost of Heat
The current cost of fuel oil in Hoonah is $4.63 per gallon. Assuming a fuel oil conversion efficiency
of 70% and an electric boiler conversion efficiency of 95%, oil heat at $4.63 per gallon equates to
$47.76 MMBtu Since the current cost of electricity at 62.6¢ per kWh equates to $193.28 per MMBtu,
fuel oil heat is much less expensive than electric heat.
IPEC Waste Heat
The Inside Passage Electrical Cooperative will be installing a waste heat recovery system where they
will sell hydronic heating water to the pool and gym building. A cost comparison between fuel oil
boiler heat and IPEC waste heat is:
Fuel Oil Boilers: $4.63 per gallon x 138.5 kBtu/gallon / 70% efficiency=$47.76 per MMBtu.
IPEC: 1 MMBtu / 114,000 Btu/gal x 50% x $4.02 per gallon = $17.63 per MMBtu
The IPEC waste heat will cost 37% of the cost of fuel oil boiler heat, a significant savings.
Hoonah Pool and Gym 10 FINAL Energy Audit (November 2011)
Section 3
Energy Efficiency Measures
The following energy efficiency measures (EEMs) were identified during the energy audit. The
EEMs are priority ranked and, where applicable, subjected to energy and life cycle cost analysis.
Appendix A contains the energy and life cycle cost analysis spreadsheets.
The EEMs will be grouped into the following prioritized categories:
Behavioral or Operational: EEMs that require minimal capital investment but require
operational or behavioral changes. The EEMs provide a life cycle savings but an analysis is
not performed because the guaranteed energy savings is difficult quantify.
High Priority: EEMs that require a small capital investment and offer a life cycle savings.
Also included in this category are higher cost EEMs that offer significant life cycle savings.
Medium Priority: EEMs that require a significant capital investment to provide a life cycle
savings. Many medium priority EEMs provide a high life cycle savings and offer substantial
incentive to increase investment in building energy efficiency.
Low Priority: EEMs that will save energy but do not provide a life cycle savings.
BEHAVIORAL OR OPERATIONAL
The following EEMs are recommended for implementation. They require behavioral or operational
changes that can occur with minimal investment to achieve immediate savings. These EEMs are not
easily quantified by analysis because they cannot be accurately predicted. They are recommended
because they offer a life cycle savings, represent good practice, and are accepted features of high
performance buildings.
EEM-1: Re-install Attic Insulation
Purpose: Inspection of the attic above the upstairs weight room and storage area by audit staff
revealed a 2’ x 4’ section of missing insulation and vapor barrier that was allowing air
and heat from conditioned spaces to flow from the interior of the building to the portion
of the attic that is directly vented to the outside. Energy will be saved if the insulation is
replaced, the vapor barrier re-sealed, and the drywall reinstalled.
Scope: Replace insulation, re-seal vapor barrier, and reinstall drywall over 2’ x 4’ opening
above second floor weight room attic.
EEM-2: Replace Domestic Hot Water System
Purpose: The existing domestic hot water system consists of a 125-gallon direct fired tank and a
large remote hot water storage tank. The system is oversized and the oil-fired hot water
heater is past its useful life.
Scope Replaced the system with two indirect hot water heaters that are connected to the boiler
plant. In addition to the energy savings associated with less tank losses and cycling
losses, this system will have less maintenance and repair costs.
Hoonah Pool and Gym 11 FINAL Energy Audit (November 2011)
HIGH PRIORITY
The following EEMs are recommended for implementation because they are low cost measures that
have a high savings to investment ratio. The EEMs are listed from highest to lowest priority. Negative
values, in parenthesis, represent savings.
EEM-3: Perform a Boiler Combustion Test
Purpose: Operating the boiler with an optimum amount of excess air will improve combustion
efficiency. Annual cleaning followed by a combustion test is recommended.
Scope: Annually clean and perform a combustion test on the boiler.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$960 ($1,670) ($710) $700 $16,300 ($47,300) ($30,300) 44.3
EEM-4: Replace Aerators
Purpose: Energy and water will be saved by replacing the lavatory aerators and showerheads
with low-flow models.
Scope: Replace lavatory aerators and showerheads with water-conserving fixtures.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($670) ($670) $1,400 $0 ($19,100) ($17,700) 13.6
EEM-5: Install Lobby Lighting Switch
Purpose: Lighting in the main corridors is currently controlled from one switch. During school
hours, all of the corridor lighting is on even though most of the traffic is through the
lobby directly into the gym. Putting a few lobby fixtures on a separate switch will allow
the lobby to be lit while the corridor lighting remains off.
Scope: Install and wire a light switch to control a few of the lobby light fixtures.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
($40) ($1,320) ($1,360) $3,600 ($700) ($23,200) ($20,300) 6.6
Hoonah Pool and Gym 12 FINAL Energy Audit (November 2011)
EEM-6: Optimize All Ventilation Systems
Purpose: The building utilizes fixed-flow heating and ventilation system units to provide
conditioned air to interior spaces from 6:00 am to 9:00 pm (M-F) and as needed on
weekends for events in the Gym and Pool areas. Under most conditions the space
occupancy throughout the majority of these operational hours is well below the setpoint
of the air handling systems. This results in an unnecessarily high fuel and electric
demand to support school operations. Energy will be saved if modifications are made to
the respective air handling systems to reduce air flow when not needed.
Scope: Perform repairs as follows and retro-commission all air handling units to perform as a
properly integrated system when completed:
i. AHU-1 and EF-1 (Locker Rooms): Turn off during unoccupied periods.
Eliminate night setback control so heating does not occur using 100% outside air.
Modulate EF-1 to maintain Natatorium at negative pressure. Calibrate
thermostats.
ii. AHU-2 and EF-2 (Natatorium): Install VFD for AHU-2 and EF-2 to reduce air
flow during unoccupied periods when pool evaporation is minimal due to the
pool cover. Increase the natatorium temperature – the current heating coil is not
able to maintain the room setpoint – to further reduce evaporation. Replace failed
humidity sensor.
iii. AHU-3 (Gym): Calibrate the existing CO2 sensor control so it properly
modulates outside air flow and install a VFD to modulate air flow with cooling
loads. Optimize schedules with current use.
iv. AHU-4 (Weight Room and Classroom): Install occupancy sensor controls to
operate the fan only when either room is occupied. Increase setback temperature
during occupied hours by allowing it to increase temperature during the school
day and control the fan (and ventilation) from an occupancy sensor.
v. Retro-commissioning: Perform an integrated building-wide retro-commissioning
upon completion of optimization of control sequences.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$500 ($45,430) ($44,930) $172,300 $8,500 ($1,121,900) ($941,100) 6.5
EEM-7: Install Domestic HWRP Thermostat Control
Purpose: The domestic hot water recirculating pump currently operates continuously to circulate
heated domestic hot water through the piping system regardless of demand or system
temperature. Energy will be saved if a thermostat is installed to operate the pump when
the loop temperature drops below the setpoint.
Scope: Install thermostat to control operation of hot water return pump.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($170) ($170) $500 $0 ($2,900) ($2,400) 5.8
Hoonah Pool and Gym 13 FINAL Energy Audit (November 2011)
EEM-8: Upgrade Motors to Premium Efficiency
Purpose: The equipment inspection identified six motors that could be upgraded with premium
efficiency models to save energy. They are:
AHU-2 EF 5 HP
AHU-4 SF 1 HP
AHU-4 EF 1 HP
AHU-5 1 HP
Pool Pump 7.5 HP
CP-1/CP-2 2 HP
Scope: Replace identified motors with premium efficiency motors.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($4,120) ($4,120) $12,600 $0 ($72,200) ($59,600) 5.7
EEM-9: Install Automatic Valves on Unit Heaters
Purpose: Energy will be saved if the six wall- and ceiling-mounted fan coil unit heaters have
automatic valves that shut off the heating flow when heat is not needed. Currently the
coils in the unit heaters are continuously hot and the thermostats turn on the fans to
supply the heat to the rooms. When heat is not needed, convective heat loss from the
coils occurs; some of the heat loss may be useful, but a large percentage is not.
Scope: Install automatic valves in the heating supply to each unit heater and control the valves
from the fan thermostats.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($700) ($700) $3,900 $0 ($19,900) ($16,000) 5.1
MEDIUM PRIORITY
Medium priority EEMs will require planning and a higher level of investment. They are
recommended because they offer a life cycle savings. The EEMs are listed from highest to lowest
priority. Negative values, in parenthesis, represent savings.
EEM-10: Install Modulating Boiler Burners
Purpose: The boiler burners do not incorporate modulating burner controls. Energy will be saved
if the boiler firing rate is modulated as necessary.
Scope: Install a modulating burner on one of the boilers. Use this boiler as the standby boiler
when the IPEC waste heat system is installed.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$1,000 ($5,010) ($4,010) $39,000 $17,000 ($141,900) ($85,900) 3.2
Hoonah Pool and Gym 14 FINAL Energy Audit (November 2011)
EEM-11: Isolate Lag Boiler
Purpose: Only one boiler is needed to meet the heating load; however, the lag boiler is not
isolated and remains hot. Circulating heating water through a lag boiler in a dual boiler
system can result in a 2% efficiency loss of the operable boiler due to the isolated
boiler acting as a heat sink. Energy will be saved by isolating the return valve on the
lag boiler
Scope: Install an automatic valve in the heating return to each boiler and interlock with the
boiler burner so the valve is fully open before the boiler fires.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($1,960) ($1,960) $19,100 $0 ($55,500) ($36,400) 2.9
EEM-12: Upgrade Gym Lighting
Purpose: Existing gym lighting utilizes 22 pendant-mounted metal halide bulbs to light the space
for approximately 2,000 hours per year to support school-hour class activities and after-
school sports and community events. Similar light levels can be achieved with multi-
lamp T5 lighting. Energy will be saved if the 22 metal halide light fixtures are replaced
with 6-bulb T5 units.
Scope: Replace the metal halide lights with 6-bulb T5 units.
EEM-13: Install Toilet Room Occupancy Sensors
Purpose: Lighting in the main toilet rooms are currently controlled with manual switching.
Energy will be saved if the lighting hours are reduced by installing occupancy sensors
in each toilet room.
Scope: Install occupancy sensors in the toilet rooms.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
($10) ($290) ($300) $3,600 ($200) ($5,100) ($1,700) 1.5
EEM-14: Upgrade Pool Lighting
Purpose: Existing pool lighting utilizes 16 pendant-mounted metal halide bulbs to light the space
for approximately 30 hours per week to support open swim hours and cleaning
operations. The existing fixtures also have a low efficacy. Similar light levels can be
achieved with multi-lamp T5 lighting. Energy will be saved if the 16 metal halide light
fixtures are replaced with T5 units.
Scope: Replace the metal halide lights with 6-bulb T5 units.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
($60) ($1,680) ($1,740) $17,100 ($1,000) ($22,800) ($6,700) 1.4
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
($100) ($3,550) ($3,650) $23,400 ($1,700) ($58,100) ($36,400) 2.6
Hoonah Pool and Gym 15 FINAL Energy Audit (November 2011)
EEM-15: Upgrade Interior Lighting
Purpose: The majority of the interior lighting consists of T12 fluorescent fixtures. Energy will be
saved if more efficient T8 and compact fluorescent bulbs are used.
Scope: Replace the existing T12 fixtures with more efficient T8 fixtures.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
($320) ($3,050) ($3,370) $40,300 ($5,500) ($44,400) ($9,600) 1.2
EEM-16: Replace Single-Pane Windows
Purpose: The north wall windows are single pane glazing with interior storm windows with an
insulation value of approximately R-1.25. Energy will be saved if these are removed
and replaced with energy efficient R-3 double pane glazing.
Scope: Replace single pane glazing with energy efficient double pane glazing units.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($1,980) ($1,980) $49,400 $0 ($56,000) ($6,600) 1.1
LOW PRIORITY
Low priority EEMs do not offer a life cycle energy savings and are not recommended.
EEM-17: Boiler Room Heat Recovery
Purpose: The boiler room utilizes supply air from SF-1 and exhausts air through EF-5 in the fan
room. Energy would be saved if the heat generated from the boiler room was recovered
from EF-5 and utilized within the building envelope.
Scope: Install a heat recovery unit in the fan room space to supply heat from the boiler space
through EF-5 to the adjacent air handling unit AHU-1.
This EEM is not recommended because the IPEC waste heat recovery system will
make it possible to significantly reduce the heat loss in the boiler room by doing the
following:
- Insulating the waste heat exchanger and piping to current standards.
- Isolating the standby when it is not needed to minimize heat loss from the jacket.
Hoonah Pool and Gym 16 FINAL Energy Audit (November 2011)
Section 4
Description of Systems
ENERGY SYSTEMS
This section provides a general description of the building systems. Energy conservation
opportunities are addressed Section 3, Energy Efficiency Measure.
Building Envelope
R-value
Component Description (inside to outside) Existing Optimal
Exterior Wall 5/8” Gyp. Bd, 2”x 12” wood studs w/ R-38 batt, cement board,
siding R-38 R-26
Roof (Gym & Pool) 24” o.c. trusses w/ R-38 batt, 2-layers ½” drywall R-38 R-46
Roof (North Entry) 24” o.c. trusses w/ R-30 batt, 5/8” drywall R-30 R-46
Floor Slab 4” Concrete slab-on-grade R-10 R-10
Foundation 8” concrete with 2” rigid insulation on interior surface R-10 R-20
Windows Aluminum clad wood frame single pane w/ storm windows R-1.25 R-5
Doors Steel doors w/ non-thermally broken frames R-1.5 R-5
Heating System
The building and the pool are heated by two fuel oil boilers that provide heat to five air handling unit
systems, fan coil units, the pool heat exchanger system, and perimeter hydronic systems. The heating
system has the following pumps:
CP-1 is a building hydronic heating pump
CP-2 is a building hydronic heating pump
CP-3 is a hydronic heating circulation pump for pool deck radiant floor heating
CP-4 is a hydronic heating circulation pump for pool deck radiant floor heating
HWRP-1 is a domestic hot water recirculation pump
Pump THWRP-1 is a tempered hot water recirculation pump
Hoonah Pool and Gym 17 FINAL Energy Audit (November 2011)
Ventilation Systems
Area Fan System Description
Lobby/Locker Rooms AHU-1 2,720 cfm supply, 2,920 cfm exhaust, constant volume air
handling unit consisting of a heating coil, mixing box, filter
section, heat recovery coil, supply fan, and exhaust fan
Natatorium AHU-2 4,740 cfm supply, 6,600 cfm exhaust, constant volume air
handling unit consisting of a heating coil, mixing box, filter
section, heat recovery coil, supply fan, and exhaust fan
Gym AHU-3 10,000 cfm supply, 10,000 cfm exhaust, constant volume air
handling unit consisting of a heating coil, filter section, supply
fan, and exhaust fan
Weight Room/Classroom AHU-4 2,120 cfm supply fan, 2,120 cfm exhaust fan, constant volume
air handling unit consisting of a heating coil, filter section,
supply fan, and return fan
Natatorium AHU-5 1,260 cfm constant volume air handling unit, supplying the
wall and ceiling plenum, consisting of a heating coil, filter
section, and supply fan
Boiler Room SF-1 Constant volume boiler room supply air fan
Locker Rooms EF-1 Constant volume locker room exhaust fan
Natatorium EF-2 Variable flow return/exhaust fan that modulates to maintain
the Natatorium at a negative pressure to the adjacent spaces
Boiler Room EF-5 Constant volume boiler room exhaust air fan
Domestic Hot Water System
The domestic hot water system consists of one 250-gallon oil-fired water heater and one large
insulated storage tank that supplies domestic hot water to the fixtures and showers. The capacity of
the system is greatly oversized. A significant savings can be shown in the right-sizing of the system to
support current facility use. These components should be replaced with two indirect hot water tanks.
The water conservation efficiency of the lavatory aerators and the showerheads can be improved.
Automatic Control System
The building has a DDC system to control the operation of the heating and ventilation systems.
Energy can be saved through further optimization of fan system scheduling combined with a retro-
commissioning of the air handling systems.
Lighting
Interior lighting consists primarily of T12 and metal halide lighting. Exterior lighting primarily
consists of metal halide lighting and three new LED wall units. The interior lighting schedules and all
exterior lighting - to include the perimeter lighting, is controlled by staff. As a result, lighting
operational hours and subsequent electrical demand are kept to a minimum with the existing fixtures.
An upgrade of the existing lighting fixtures to more efficient models represents the best opportunity
to reduce lighting electrical demand.
Electric Equipment
No significant electrical equipment was noted beyond that necessary for building and pool support
infrastructure.
Hoonah Pool and Gym 18 FINAL Energy Audit (November 2011)
Section 5
Methodology
Information for the energy audit was gathered through on-site observations, review of construction
documents, and interviews with operation and maintenance personnel. The EEMs are evaluated using
energy and life cycle cost analyses and are priority ranked for implementation.
Energy Efficiency Measures
Energy efficiency measures are identified by evaluating the building’s energy systems and comparing
them to systems in modern, high performance buildings. The process for identifying the EEMs
acknowledges the realities of an existing building that was constructed when energy costs were much
lower. Many of the opportunities used in modern high performance buildings—highly insulated
envelopes, variable capacity mechanical systems, heat pumps, daylighting, lighting controls, etc.—
simply cannot be economically incorporated into an existing building.
The EEMs represent practical measures to improve the energy efficiency of the buildings, taking into
account the realities of limited budgets. If a future major renovation project occurs, additional EEMs
common to high performance buildings should be incorporated.
Life Cycle Cost Analysis
The EEMs are evaluated using life cycle cost analysis which determines if an energy efficiency
investment will provide a savings over a 25-year life. The analysis incorporates construction,
replacement, maintenance, repair, and energy costs to determine the total cost over the life of the
EEM. Future maintenance and energy cash flows are discounted to present worth using escalation
factors for general inflation, energy inflation, and the value of money. The methodology is based on
the National Institute of Standards and Technology (NIST) Handbook 135 – Life Cycle Cost
Analysis.
Life cycle cost analysis is preferred to simple payback for facilities that have long—often perpetual—
service lives. Simple payback, which compares construction cost and present energy cost, is
reasonable for short time periods of 2-4 years, but yields below optimal results over longer periods
because it does not properly account for the time value of money or inflationary effects on operating
budgets. Accounting for energy inflation and the time value of money properly sums the true cost of
facility ownership and seeks to minimize the life cycle cost.
Construction Costs
The cost estimates are derived based on a preliminary understanding of the scope of each EEM as
gathered during the walk-through audit. The construction costs for in-house labor are $60 per hour for
work typically performed by maintenance staff and $110 per hour for contract labor.
The cost estimate assumes the work will be performed as part of a larger renovation or energy
efficiency upgrade project. When implementing EEMs, the cost estimate should be revisited once the
scope and preferred method of performing the work has been determined. It is possible some EEMs
will not provide a life cycle savings when the scope is finalized.
Hoonah Pool and Gym 19 FINAL Energy Audit (November 2011)
Maintenance Costs
Maintenance costs are based on in-house or contract labor using historical maintenance efforts and
industry standards. Maintenance costs over the 25-year life of each EEM are included in the life cycle
cost calculation spreadsheets and represent the level of effort to maintain the systems.
Energy Analysis
The energy performance of an EEM is evaluated within the operating parameters of the building. A
comprehensive energy audit would rely on a computer model of the building to integrate building
energy systems and evaluate the energy savings of each EEM. This investment grade audit does not
utilize a computer model, so energy savings are calculated with factors that account for the dynamic
operation of the building. Energy savings and costs are estimated for the 25-year life of the EEM
using appropriate factors for energy inflation.
Prioritization
Each EEM is prioritized based on the life cycle savings to investment ratio (SIR) using the following
formula:
Prioritization Factor = Life Cycle Savings / Capital Costs
This approach factor puts significant weight on the capital cost of an EEM, making lower cost EEMs
more favorable.
Economic Factors
The following economic factors are significant to the findings.
Nominal Interest Rate: This is the nominal rate of return on an investment without regard to
inflation. The analysis uses a rate of 5%.
Inflation Rate: This is the average inflationary change in prices over time. The analysis uses
an inflation rate of 2%.
Economic Period: The analysis is based on a 25-year economic period with construction
beginning in 2010.
Fuel Oil
Fuel oil currently costs $4.63 per gallon for #2 fuel oil. The analysis is based on 6% fuel oil inflation
which has been the average for the past 20-years.
Hoonah Pool and Gym 20 FINAL Energy Audit (November 2011)
Electricity
Electricity is supplied by Inside Passage Electrical Cooperative. The building is billed for electricity
under the Large Commercial Rate. This rate charges for both electrical consumption (kWh) and peak
electric demand (kW). Electrical consumption is the amount of energy consumed and electric demand
is the rate of consumption.
The building is included in the Power Cost Equalization program which reduces electrical rates
directly paid by the Hoonah City School District from $0.62/kwh to $0.16/kwh. While the school may
only pay $0.16/kwh for the electricity to operate the Gym and Pool Building, the true cost of energy
to the community of Hoonah and the State of Alaska is still the $0.62/kwh rate.
Inside Passage Electric Cooperative
Large Commercial Rate
Electricity $ / kwh $0.5522
Demand ( $ / kW ) $12.29
Customer Charge ( $ / mo ) $50.00
Summary
The following table summarizes the energy and economic factors used in the analysis.
Summary of Economic and Energy Factors
Factor Rate or Cost Factor Rate or Cost
Nominal Discount Rate 5% Electricity $0.626/kwh
General Inflation Rate 2% Electricity Inflation 2%
Fuel Oil Cost (2012) $4.91/gal Fuel Oil Inflation 6%
Hoonah Pool and Gym 21 FINAL Energy Audit (November 2011)
Appendix A
Energy and Life Cycle Cost Analysis
Hoonah Pool and Gym 22 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Building Name
Basis
Economic
Study Period (years) 25 Nominal Discount Rate 5%General Inflation 2%
Energy
2011 $/gal Fuel Inflation 2012 $/gal
Fuel Oil $4.63 6% $4.91
Electricity $/kWh (2011)$/kW (2011)Inflation $/kWh (2012)$/kW (2012)
w/ Demand Charges $0.552 $12.29 2% $0.563 $12.54
w/o Demand Charges $0.626 -2% $0.639 -
EEM-3: Perform a Boiler Combustion Test
Energy Analysis
Annual Gal % Savings Savings, Gal
34,000 -1.0% -340
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Purchase combustion analyzer 0 1 LS $700 $700
Annual Costs
Clean Boiler / Combustion test 1 - 25 16 hrs $60.00 $16,346
Energy Costs
Fuel Oil 1 - 25 -340 gal $4.91 ($47,297)
Net Present Worth ($30,300)
EEM-4: Replace Aerators
Energy Analysis
η boiler 68%
Fixture Existing Proposed Uses/day Days Water,Gals % HW kBTU Gallons
Showerhead 20.0 15.0 30 156 -23,400 80% -12,490 -133
Lavatories 0.3 0.2 30 156 -842 80% -450 -5
-24,242 -137
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Replace lavatory aerators 0 15 ea $35 $525
Replace showerhead 0 25 ea $35 $875
Energy Costs
Fuel Oil 1 - 25 -137 gal $4.91 ($19,113)
Net Present Worth ($17,700)
Gallons per Use
Hoonah Pool and Gym 23 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Building Name
EEM-5: Install Lobby Lighting Switch
Energy Analysis
# Fixtures Lamp Lamp, watts Fixture Watts Hours, exist Hours, new Savings, kWh
15 2T12 80 92 -1,500 0 -2,070
-2,070
Lamp Replacement
# Fixtures Lamp # Lamps Life, hrs Lamps//yr $/lamp $/Replace
15 2T12 2 20,000 -2.25 $4 $15
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Install and wire light switch 0 1 LS $2,000 $2,000
Estimating contingency 0 15%$300
Overhead & profit 0 30%$690
Design fees 0 10%$299
Project management 0 8%$263
Annual Costs
Lamp replacement 1 - 25 -2.25 lamps $19.00 ($728)
Energy Costs
Electric Energy (Effective Cost)1 - 25 -2,070 kWh $0.639 ($23,167)
Net Present Worth ($20,300)
Hoonah Pool and Gym 24 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Building Name
EEM-6: Optimize All Ventilation Systems
Energy Analysis
Fan Case CFM ΔP η, fan BHP η, motor kW Hours kWh
AHU-1 Existing -2,720 2.50 55%-2 89% -1.6 8,760 -14,283
Optimized 2,720 2.50 55%2 89% 1.6 1,500 2,446
EF-1 Existing -2,000 2.50 55%-1 87% -1.2 8,760 -10,744
Optimized 2,000 2.50 55%1 87% 1.2 1,500 1,840
AHU-2 Existing -4,740 2.75 55%-4 91% -3.1 8,760 -26,777
Optimized 4,740 2.75 55%4 91% 3.1 8,760 26,777
AHU-3 Existing -12,620 1.50 55%-5 91% -4.4 2,000 -8,878
Optimized 8,000 1.00 55%2 91% 1.9 2,000 3,752
AHU-4 Existing -1,400 1.75 50%-1 86% -0.7 2,000 -1,345
Optimized 1,400 1.75 50%1 86% 0.7 1,000 673
-2.6 -26,540
Ventilation SA CFM MAT T,room MBH Hours kBtu η boiler Gallons
AHU-1 Existing -2,720 55 70 -44 8,760 -386,001 68%-4,099
Optimized 2,720 55 70 44 1,500 66,096 68%702
AHU-3 Existing -12,600 55 68 -177 2,000 -353,808 68%-3,757
Optimized 8,000 62 68 52 2,000 103,680 68%1,101
AHU-4 Existing -1,400 65 70 -8 2,000 -15,120 68%-161
Optimized 1,400 65 70 8 1,000 7,560 68%80
-577,593 -6,133
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Optimize AHU-1 controls 0 1 LS $10,000 $10,000
Optimize AHU-2 controls 0 1 LS $15,000 $15,000
Install VFD on AHU-2 and EF-2 0 2 LS $10,000 $20,000
Optimize AHU-3 controls 0 1 LS $12,000 $12,000
Install VFD on AHU-3 0 1 LS $10,000 $10,000
Optimize AHU-4 controls 0 1 LS $10,000 $10,000
Retrocommission systems 0 1 LS $20,000 $20,000
Estimating contingency 0 15% $14,550
Overhead & profit 0 30% $33,465
Design fees 0 10% $14,502
Project management 0 8% $12,761
Annual Costs
DDC Maintenance 1 - 25 1 LS $500.00 $8,514
Energy Costs
Electric Energy 1 - 25 -26,540 kWh $0.563 ($262,014)
Electric Demand 1 - 25 -31 kW $12.54 ($6,758)
Fuel Oil 1 - 25 -6,133 gal $4.91 ($853,138)
Net Present Worth ($941,100)
Hoonah Pool and Gym 25 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Building Name
EEM-7: Install Domestic HWRP Control
Energy Analysis
Watts Hours,ex Hours, new kWh
60 8,760 4,380 -263
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Thermostatic controller 0 1 ea $350 $350
Overhead & profit 0 30%$105
Energy Costs
Electric Energy (Effective Cost)1 - 25 -263 kWh $0.639 ($2,941)
Net Present Worth ($2,500)
EEM-8: Upgrade Motors to Premium Efficiency
Energy Analysis
Equip Number HP ηold ηnew kW Hours kWh
AHU-4 EF 1 1 74.0% 85.5% -0.09 1,440 -124
AHU-5 1 1 78.5% 85.5% -0.05 8,760 -457
AHU-4 SF 1 2 82.5% 86.5% -0.06 1,440 -86
CP-1/CP-2 2 2 78.5% 86.5% -0.24 4,380 -1,046
AHU-2 EF 1 5 81.0% 89.5% -0.32 8,760 -2,777
Pool Pump 1 7.5 86.5% 91.7% -0.29 8,760 -2,549
-1.0 -7,039
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs HP
Replace motor 1 0 2 LS 940 $1,880
Replace motor 2 0 3 LS 970 $2,910
Replace motor 5 0 1 LS 1,290 $1,290
Replace motor 7.5 0 1 LS 1,690 $1,690
Estimating contingency 0 5%$389
Overhead & profit 0 30%$2,448
Design fees 0 10%$1,061
Project management 0 8%$933
Energy Costs
Electric Energy 1 - 25 -7,039 kWh $0.563 ($69,487)
Electric Demand 1 - 25 -13 kW $12.54 ($2,754)
Net Present Worth ($59,600)
EEM-9: Install Automatic Valves on Unit Heaters
Energy Analysis
Loss, BTUH Number Factor Loss, kBTU Boiler Effic Fuel, gals
-1,000 6 25% -13,140 68% -143
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Install automatic valves and connect to fan wiring 0 6 ea $500 $3,000
Overhead & profit 0 30%$900
Energy Costs
Fuel Oil 1 - 25 -143 gal $4.91 ($19,912)
Net Present Worth ($16,000)
Hoonah Pool and Gym 26 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Building Name
EEM-10: Install Modulating Boiler Burners
Energy Analysis
Annual Gal % Savings Savings, Gal
34,000 -3.0% -1,020
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Install modulating burner 0 2 LS $15,000 $30,000
Overhead & profit 0 30%$9,000
Annual Costs
Burner maintenance 1 - 25 2 LS $500.00 $17,027
Energy Costs
Fuel Oil 1 - 25 -1,020 gal $4.91 ($141,892)
Net Present Worth ($85,900)
EEM-11: Isolate Lag Boiler
Energy Analysis
Boiler Input MBH Loss %Loss MBH Hours, exist Hours, new kBtu η boiler Gallons
B-1 857 1.0%9 8,760 4,380 -37,543 68%-399
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Install AV in heating return 0 2 ea $6,000 $12,000
Controls 0 2 ea $1,000 $2,000
Estimating contingency 0 5% $700.00
Overhead & profit 0 30% $4,410.00
Energy Costs
Fuel Oil 1 - 25 -399 gal $4.91 ($55,453)
Net Present Worth ($36,300)
Hoonah Pool and Gym 27 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Building Name
EEM-12: Upgrade Gym Lighting
Energy Analysis
Electric Savings
Fixture Number Hours Lamp Fixture Watts Lamp Fixture Watts kW kWh
Pendent 22 2,000 MH 500 T5 360 -3.1 -6,160
Additional Heating Load
kWh Factor kBtu η boiler Gallons
6,160 35% 7,356 68% 78
Lamp Replacement
Type # Fixtures Lamp # Lamps Life, hrs Lamps//yr $/lamp Labor/lamp
Pendent 22 MH -1 15,000 -3 $40 $30.00
Pendent 22 T5 6 36,000 7 $1.50 $5.00
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Replace light fixtures with T5 fixtures 0 22 LS $600 $13,200
Estimating contingency 0 15% $1,980.00
Overhead & profit 0 30% $4,554.00
Design fees 0 10%$1,973
Project management 0 8%$1,737
Annual Costs
MH lamp replacement 1 - 25 -3 lamps $70.00 ($3,496)
T5 lamp replacement 1 - 25 7 lamps $14.00 $1,748
Energy Costs
Water 1 - 25 kgals $10.960 $0
Electric Energy 1 - 25 -6,160 kWh $0.563 ($60,814)
Electric Demand 1 - 25 -37 kW $12.54 ($8,121)
Fuel Oil 1 - 25 78 gal $4.91 $10,866
Net Present Worth ($36,400)
EEM-13: Install Toilet Room Occupancy Sensors
Energy Analysis
# Fixtures Lamp Lamp, watts Fixture Watts Hours, exist Hours, new Savings, kWh
5 2T12 80 92 -1,500 500 -460
-460
Lamp Replacement
# Fixtures Lamp # Lamps Life, hrs Lamps//yr $/lamp $/Replace
5 2T12 2 20,000 -0.50 $4 $15
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Install occupancy sensors 0 2 LS $1,000 $2,000
Estimating contingency 0 15%$300
Overhead & profit 0 30%$690
Design fees 0 10%$299
Project management 0 8%$263
Annual Costs
Lamp replacement 1 - 25 -0.50 lamps $19.00 ($162)
Energy Costs
Electric Energy (Effective Cost)1 - 25 -460 kWh $0.639 ($5,148)
Net Present Worth ($1,800)
Existing Replacement Savings
Hoonah Pool and Gym 28 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Building Name
EEM-14: Upgrade Pool Lighting
Energy Analysis
Electric Savings
Fixture Number Hours Lamp Fixture Watts Lamp Fixture Watts kW kWh
Surface 16 1,560 MH 500 T5 360 -2.2 -3,494
Additional Heating Load
kWh Factor kBtu η boiler Gallons
3,494 100% 11,923 68% 127
Lamp Replacement
Type # Fixtures Lamp # Lamps Life, hrs Lamps//yr $/lamp Labor/lamp
Surface 16 MH -1 15,000 -2 $40 $30.00
Surface 16 T5 6 36,000 4 $1.50 $5.00
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Replace light fixtures with T5 fixtures 0 16 LS $600 $9,600
Estimating contingency 0 15% $1,440.00
Overhead & profit 0 30% $3,312.00
Design fees 0 10%$1,435
Project management 0 8%$1,263
Annual Costs
MH lamp replacement 1 - 25 -2 lamps $70.00 ($1,983)
T5 lamp replacement 1 - 25 4 lamps $14.00 $992
Energy Costs
Water 1 - 25 kgals $10.960 $0
Electric Energy 1 - 25 -3,494 kWh $0.563 ($34,498)
Electric Demand 1 - 25 -27 kW $12.54 ($5,906)
Fuel Oil 1 - 25 127 gal $4.91 $17,611
Net Present Worth ($6,700)
Existing Replacement Savings
Hoonah Pool and Gym 29 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Building Name
EEM-15: Upgrade Interior Lighting
Energy Analysis
Electric Savings
Fixture Number Hours Lamp Fixture Watts Lamp Fixture Watts kW kWh
Recessed 4 1,560 1T12 46 1T8 35 0.0 -69
Recessed 168 1,560 2T12 92 2T8 72 -3.4 -5,242
Recessed 12 1,560 3T12 138 3T8 107 -0.4 -580
-3.8 -5,891
Additional Heating Load
kWh Factor kBtu η boiler Gallons
5,891 80% 16,079 68% 171
Lamp Replacement
Type # Fixtures Lamp # Lamps Life, hrs Lamps//yr $/lamp Labor/lamp
Recessed 4 1T12 -1 20,000 -1 $3 $5.00
Recessed 168 2T12 -2 20,000 -74 $3 $5.00
Recessed 12 3T12 -4 20,000 -11 $3 $2.50
Recessed 4 1T8 1 36,000 0 $4 $5.00
Recessed 168 2T8 2 36,000 41 $4 $5.00
Recessed 12 3T8 4 36,000 6 $4 $2.50
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Replace 1T12 ballast and lamp with T8 0 4 LS $144 $576
Replace 2T12 ballast and lamps with T8 0 168 LS $148 $24,864
Replace 3T12 ballast and lamps with T8 0 12 LS $156 $1,872
Estimating contingency 0 5% $1,365.60
Overhead & profit 0 30% $8,603.28
Project management 0 8%$2,982
Annual Costs
Existing lamp replacement, incandescent 1 - 25 -1 lamps $8.00 ($119)
Existing lamp replacement, 2T12 1 - 25 -74 lamps $11.00 ($13,782)
Existing lamp replacement, 4T12 1 - 25 -11 lamps $14.50 ($2,595)
Lamp replacement, CFL 1 - 25 0 lamps $9.00 $75
Lamp replacement, 2T8 1 - 25 41 lamps $13.00 $9,049
Lamp replacement, 4T8 1 - 25 6 lamps $18.50 $1,840
Energy Costs
Electric Energy 1 - 25 -5,891 kWh $0.563 ($58,154)
Electric Demand 1 - 25 -45 kW $12.54 ($9,956)
Fuel Oil 1 - 25 171 gal $4.91 $23,749
Net Present Worth ($9,600)
Existing Replacement Savings
Hoonah Pool and Gym 30 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Building Name
EEM-16: Replace Single-pane Windows
Energy Analysis
Component Area R,exist R,new ΔT MBH kBtu η boiler Gallons
Windows 371 1.25 3.0 25 -4.3 -37,916 68%-403
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Replace window glazing unit 0 371 sqft $75 $27,825
Estimating contingency 0 15%$4,174
Overhead & profit 0 30%$9,600
Design fees 0 10%$4,160
Project management 0 8%$3,661
Energy Costs
Fuel Oil 1 - 25 -403 gal $4.91 ($56,004)
Net Present Worth ($6,600)
Hoonah Pool and Gym 31 FINAL Energy Audit (November 2011)
Appendix B
Energy and Utility Data
Hoonah Pool and Gym 32 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Billing Data
25200 Amalga Harbor Road Tel/Fax: 907-789-1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Hoonah Pool and Gym
ELECTRIC RATE
Inside Passage Electric Cooperative Large Commercial Rate
Electricity ($ / kWh )$0.5522
Cost of Power Adjustment ($ / kWh)$0.0000
Demand ( $ / kW )$12.29
Customer Charge ( $ / mo )$50.00
Sales Tax ( % )0.0%
ELECTRICAL CONSUMPTION AND DEMAND
kWh kW kWh kW kWh kW kWh kW
Jan 12,440 42 10,160 37 9,400 24 8,480 30 10,120
Feb 9,600 38 12,720 42 5,640 28 7,960 32 8,980
Mar 12,520 38 11,320 41 5,440 28 6,200 31 8,870
Apr 12,640 38 13,200 42 5,640 22 5,360 28 9,210
May 11,200 39 10,000 41 3,880 20 2,040 25 6,780
Jun 8,120 42 3,520 25 1,160 14 800 15 3,400
Jul 18,080 39 3,000 25 920 13 760 14 5,690
Aug 7,840 36 400 27 3,000 27 1,381 13 3,155
Sep 10,800 41 7,200 27 1,360 14 6,640 26 6,500
Oct 12,600 43 9,640 27 3,040 28 6,760 32 8,010
Nov 10,240 38 10,440 31 4,320 17 6,480 35 7,870
Dec 12,000 41 11,800 34 4,640 26 6,920 32 8,840
Total 138,080 103,400 48,440 59,781 87,425
Average 11,507 40 8,617 33 4,037 22 4,982 26 7,285
Load Factor 40%36%25%26%30
ELECTRIC BILLING DETAILS
Month Energy Demand Cust & Tax Total Energy Demand Cust & Tax Total % Change
Jan $5,191 $292 $50 $5,532 $4,683 $371 $50 $5,104 -7.7%
Feb $3,114 $345 $50 $3,509 $4,396 $399 $50 $4,845 38.1%
Mar $3,004 $346 $50 $3,400 $3,424 $376 $50 $3,849 13.2%
Apr $3,114 $274 $50 $3,438 $2,960 $338 $50 $3,348 -2.6%
May $2,143 $245 $50 $2,437 $1,126 $303 $50 $1,480 -39.3%
Jun $641 $172 $50 $863 $442 $189 $50 $681 -21.1%
Jul $508 $162 $50 $720 $420 $172 $50 $641 -11.0%
Aug $1,657 $334 $50 $2,040 $763 $157 $50 $970 -52.5%
Sep $751 $172 $50 $973 $3,667 $324 $50 $4,041 315.5%
Oct $1,679 $338 $50 $2,067 $3,733 $391 $50 $4,174 101.9%
Nov $2,386 $205 $50 $2,640 $3,578 $432 $50 $4,060 53.8%
Dec $2,562 $319 $50 $2,931 $3,821 $389 $50 $4,260 45.3%
Total $ 26,749 $ 3,202 $ 600 $ 30,551 $ 33,011 $ 3,841 $ 600 $ 37,452 22.6%
Average $ 2,229 $ 267 $ 50 $ 2,546 $ 2,751 $ 320 $ 50 $ 3,121 22.6%
Cost ($/kWh)$0.631 88% 10% 2% $0.626 -0.7%
Electrical costs are based on the current electric rates.
2009 2010
2010Month200720082009 Average
Hoonah Pool and Gym 33 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Annual Electric Consumption
25200 Amalga Harbor Road Tel/Fax: 907-789-1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Hoonah Pool and Gym
0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
16,000
18,000
20,000
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov DecElectric Use (kWh)Month of the Year
Electric Use History 2007
2008
2009
2010
0
5
10
15
20
25
30
35
40
45
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov DecElectric Demand (kW)Month of the Year
Electric Demand History
2007
2008
2009
2010
Hoonah Pool and Gym 34 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Electric Cost
25200 Amalga Harbor Road Tel/Fax: 907-789-1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Hoonah Pool and Gym 2010
$ 0
$ 1,000
$ 2,000
$ 3,000
$ 4,000
$ 5,000
$ 6,000
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov DecElectric Cost (USD)Month of the Year
Electric Cost Breakdown
2010
Electric Use (kWh) Costs
Electric Demand (kW) Costs
Customer Charge and Taxes
0
5
10
15
20
25
30
35
40
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Electric Demand (kW)Electric Use (kWh)Month of the Year
Electric Use and Demand Comparison
2010
Electric Use
Electric Demand
Hoonah Pool and Gym 35 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Annual Fuel Oil Consumption
25200 Amalga Harbor Road Tel/Fax: 907-789-1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Hoonah Pool and Gym
Year Fuel Oil Degree Days
2,007 17,961 9,282
2,008 15,547 9,093
2,009 9,036 9,284
2,010 9,599 9,013
5,000
6,000
7,000
8,000
9,000
10,000
0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
16,000
18,000
20,000
2007 2008 2009 2010 Degree DaysGallons of Fuel OilYear
Annual Fuel Oil Use
Fuel Oil
Degree Days
Hoonah Pool and Gym 36 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Annual Water Consumption
25200 Amalga Harbor Road Tel/Fax: 907-789-1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Hoonah Pool and Gym
Year Water*
2008 50,000
2009 48,500
2010 51,000
2011 343,000
* Water use is based upon best available data.
0
50,000
100,000
150,000
200,000
250,000
300,000
350,000
400,000
2008 2009 2010 2011Gallons of WaterYear
Annual Water Use
Hoonah Pool and Gym 37 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Billing Data
25200 Amalga Harbor Road Tel/Fax: 907-789-1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Annual Energy Consumption and Cost
Energy Cost $/MMBTU Area ECI EUI
Fuel Oil $4.63 $47.76 27,725 $4.14 75
Electricity $0.63 $193.28
Source Cost
Electricity 87,000 kWh $54,500 300 14%
Fuel Oil 13,000 Gallons $60,200 1,770 86%
Totals $114,700 2,070 100%
Energy, MMBtu
Annual Energy Consumption and Cost
Consumption
Hoonah Pool and Gym 38 FINAL Energy Audit (November 2011)
Appendix C
Equipment Data
Hoonah Pool and Gym 39 FINAL Energy Audit (November 2011)
MotorLocation Function Make Model Capacity HP / Volts / RPM / Effic NotesAHU 1 Fan Room Locker/LobbyTrane TBOB08AGOD3CLL033 HP/ 208 V/ 1740 RPM/ 87.5%Fan Room Exhaust FanTrane CBDP05BOSDCL03J3 HP/ 208 V/ 1740 RPM/ 87.5%AHU 2 Fan Room Pool AreaTrane TVEB105G0ESJLL035 HP/ 208 V/ 1750 RPM/ 87.5%Fan Room Relief Air FanTrane CBDB12BOSDCR13K5 HP/ 208 V/ 1745 RPM/ 81%AHU 3 Fan Room GymLa Salle HHV-227.5 HP/ 208 V/ 1760 RPM/ 91%RF 3 Fan Room Return FanLa Salle FS-223 HP/ 203 V/ 1760 RPM/ 89.5%AHU 4 Fan Room Weight Room/ Classroom La Salle HHV-031 HP/ 208 V/ 1740 RPM/ 82.5%RF 4 Fan Room Return FanLa Salle FS-031 HP/ 208 V/ 1725 RPM/ 74% AHU 5 Fan Room Pool Plenum Trane U85E506011 HP/ 208 V/ 1735 RPM/ 78.5%SF 1 Fan Room Boiler Room System1/4 HP/ 208 V/ 1725 RPMEF 5 Fan Room Boiler Room Exhaust1/4 HP/ 208 V/ 1725 RPMB3 Boiler Room BoilerWeil Mclain H-486-8-W720 Mbtuhi/low fireB4 Boiler Room BoilerWeil Mclain H-406-8-W720 Mbtuhi/low fireHV2 Boiler Room Hot Water HeaterPvi9.0-250-A-0250 gallonoil fired direct hot water heaterFire Pump Room Fire PumpPetterson FP-C816615 HP/ 208 V/ 1750 RPM/ 91%PP Pool Mechanical Pool Circulation Pump Aurora 341ABF312 gpm @ 60' 7.5 HP/ 208 V/ 1775 RPM/ 86.5%Boiler Room Hot Water Circulation Pump TACOHot Water Circulation Pump TACO 007-BF51/25 HP/ 115 V/ 3250 RPMCP 1 Boiler Room Boiler Circulation Pump B&G 2.5x72 HP/ 208 V/ 1725 RPM/ 78.5%CP 2 Boiler Room Boiler Circulation Pump B&G 2.5x72 HP/ 208 V/ 1725 RPM/ 78.5%CP 3 Boiler Room Pool Redirect Floor Heater TACO1/6 HP/ 120 V/ 3250 RPMCP 4 Boiler Room Pool Redirect Floor Heater TACO1/6 HP/ 120 V/ 3250 RPMUnit IDHoonah Gym and Pool - Major Equipment InventoryHoonah Pool and Gym 40 FINAL Energy Audit (November 2011)
Appendix D
Abbreviations
AHU Air handling unit
BTU British thermal unit
BTUH BTU per hour
CBJ City and Borough of Juneau
CMU Concrete masonry unit
CO2 Carbon dioxide
CUH Cabinet unit heater
DDC Direct digital controls
DHW Domestic hot water
EAD Exhaust air damper
EEM Energy efficiency measure
EF Exhaust fan
Gyp Bd Gypsum board
HVAC Heating, Ventilating, Air-
conditioning
HW Hot water
HWRP Hot water recirculating pump
KVA Kilovolt-amps
kW Kilowatt
kWh Kilowatt-hour
LED Light emitting diode
MBH 1,000 Btu per hour
MMBH 1,000,000 Btu per hour
OAD Outside air damper
PSI Per square inch
PSIG Per square inch gage
RAD Return air damper
RF Return fan
SIR Savings to investment ratio
SF Supply fan
UV Unit ventilator
VAV Variable air volume
VFD Variable frequency drive
Hoonah Pool and Gym 41 FINAL Energy Audit (November 2011)
Hoonah School
Hoonah City School District
Funded by:
Final Report
November 2011
Prepared by:
Energy Audit
Table of Contents
Section 1: Executive Summary 2
Section 2: Introduction 7
Section 3: Energy Efficiency Measures 10
Section 4: Description of Systems 17
Section 5: Methodology 20
Appendix A: Energy and Life Cycle Cost Analysis 23
Appendix B: Utility and Energy Data 31
Appendix C: Equipment Data 36
Appendix D: Abbreviations 40
Audit Team
The energy audit is performed by Alaska Energy Engineering LLC of Juneau, Alaska. The audit team
consists of:
Jim Rehfeldt, P.E., Energy Engineer
Jack Christiansen, Energy Consultant
Brad Campbell, Energy Auditor
Loras O’Toole P.E., Mechanical Engineer
Will Van Dyken P.E., Electrical Engineer
Curt Smit, P.E., Mechanical Engineer
Philip Iverson, Construction Estimator
Karla Hart, Technical Publications Specialist
Jill Carlile, Data Analyst
Grayson Carlile, Energy Modeler
Hoonah School 1 FINAL Energy Audit (November 2011)
Section 1
Executive Summary
An energy audit of the Hoonah School was performed by Alaska Energy Engineering LLC. The
investment grade audit was funded by Alaska Housing Finance Corporation (AHFC) to identify
opportunities to improve the energy performance of public buildings throughout Alaska.
The Hoonah School is a 56,330 square foot building that contains commons, classrooms, offices, a
gym, locker rooms, a kitchen and cafeteria, a library, storage, and mechanical support spaces.
Building Assessment
Envelope
The most significant finding from an energy efficiency perspective is the lack of attic insulation
above the entire library space and above the administration and middle school/high school spaces that
include the music/home economics wing and the classroom wing. It is not clear how the remodel
project to add trusses above the original flat roof missed the very simple detail of installing insulation
in both the design and the construction phases. The existing roof assembly offers little more than an
R-7 insulation value above a 14,055 sqft section of the building, and the remaining 4,880 sqft of
space that was remodeled without insulation has an insulation value of R-15. A significant reduction
in fuel oil consumption can be quickly realized if simple blown-in insulation is added to these attic
spaces to increase the insulation value to the R-60 optimum level used in today’s energy efficient
buildings (Section 3, Energy Efficiency Measure-7).
Planning for the Hoonah Schools Major Maintenance Project is underway. As part of this project,
new wall insulation can be added to the school facility in the form of an exterior foam package that
will provide minimal disruption to the occupants.
An insufficient gutter system, including damaged and missing gutters, and minimal roof eve overhang
have taken a toll on the building siding. The roof should be evaluated to identify proper gutter and
snow-stop needs in an effort to preserve the siding and building exterior integrity.
The site grading plan for the building perimeter needs to be reviewed and action taken where needed.
Enough gravel has collected along portions of the south side of the middle/high school that it has
reached the height of the lowest run of siding. The grading of the south side of the elementary school
does not slope away from the building. As a result the hillside is draining into the south wall. These
are just a couple of examples of how the existing grading is contributing to the moisture damage and
premature failure of the building.
Operation of multiple mechanical ventilation systems can set up pressure gradients within any
building space. This is the case in the Hoonah Schools. The utilidor between the building wings
allows air to flow from the higher pressure side of the building to the lower pressure side. Building
heat is lost to the paved surface between the wings as a result. This is evident by the amount of snow
melt that occurs over the utilidor between the building wings. Heat loss to the utilidor can be
decreased by simply sealing the opening on each end with foam board insulation and mastic.
Hoonah School 2 FINAL Energy Audit (November 2011)
The exterior doors are not thermally broken. Future exterior door replacement selection should
include this feature. The weather stripping on the high school steel doors is in very poor condition and
should be replaced. The south elementary doors have a ½” x 6’ gap at the base of the door and need a
door sweep installed, and the threshold on one of the east-wall doors has completely rusted through
and should be replaced.
The standard window in the school buildings is a single pane wood unit with an internal storm
window. Approximately 15 of the window units have already been upgraded to a more energy
efficient double panes. The energy audit team was informed during the inspection that replacement of
all windows will be part of the upcoming Major Maintenance project. This would integrate nicely
with the addition of an exterior insulation package. There are two broken windows on the 2nd story of
the middle school that should be replaced at the earliest available opportunity.
Heating System
The school spaces are heated by two fuel oil boilers that provide heat
to seven air handling units, fan coil units, and perimeter hydronic
systems.
At the time of the audit Boiler #1 was running and Boiler #2 was on-
line and not isolated. Circulating heating water through a non-
necessary boiler results in a significant amount of heat losses. This is
covered in Section 3, Energy Efficiency Measures. The temperature
band for the lead and lag boilers was set at 160°F – 180°F for the lead
boiler and 150°F – 170°F for the lag boiler. A 30° delta T optimizes
boiler efficiency, i.e. 150°F – 180°F and 140°F to 170°F.
There is a significant need to replace and right-size the boilers. They
are past their useful life and once the building is properly insulated
and the ventilation systems are optimized they will be oversized for
future loads. A reduction in size and the use of modulating burners is
recommended for the replacement boilers. Right-sizing efforts are
important. The on-site boiler system will be the only source of heat at
times when the Waste Recovery Heat supply is interrupted. And, on
cold days when the heating demands of the school exceed the amount
of Waste Recovery Heat supplied, it will carry only a small additional
load.
Operational funds will also be saved if an investment is made to right-size the domestic hot water
system. The existing system is oversized and inefficient, and the fuel oil direct hot water heater is past
its useful life. These components should be replaced with two indirect hot water tanks in the proposed
renovation project.
The remainder of the fuel oil boiler heating system appears to be in good condition; however fairly
simple improvements can be made to improve its effectiveness and efficiency. These are outlined in
Section 3, Energy Efficiency Measures. Because the efficiency of future operations is so dependent
on all of these near-term decisions in the renovation project, it is strongly recommended that school
staff continue to focus on reducing all building heating loads as much as possible through
improvements to the efficiency of the heating and ventilating systems and through building envelope
improvements such as additional insulation value wherever possible.
The Inside Passage Electric
Cooperative Waste Heat
Recovery Project will
provide a much cheaper
heated water source for the
Hoonah School. Under the
plan, the School is allowed
a flow of 55 gpm or 550
MBH.
This presents an oppor-
tunity to use operational
savings as a capital funding
source to upgrade and
improve the efficiency of the
building, and additional
incentive to continue to
reduce all building heating
loads as much as possible
so the waste heat system
can supply a greater
percentage of the heating
load.
Hoonah School 3 FINAL Energy Audit (November 2011)
Ventilation Systems
The building ventilation systems consist of seven large air handling units, one relief fan, and six
exhaust fans that heat, cool, and ventilate the building. The overall condition of the ventilation
systems is good and routine preventive maintenance tasks are being scheduled and performed. There
are opportunities to reduce heating costs through right-sizing building space air exchange rates and
improving control sequences.
Under normal operations, AHU-6 in the woodshop should supply full outside air when the woodshop
exhaust fan EF-1 operates. When this feature was tested, AHU-6 failed to perform properly because
the mixing dampers were not working.
Due to the excessive noise of AHU-5, the unit is only operated at night to purge air from the building.
Replacing AHU-5 with a quieter model will allow operation when the building is occupied.
Of particular concern is the excessive building exhaust rate for the bathrooms and center
office/storage spaces. This exhaust fan system is removing more air from just these spaces than is
required for the entire building based on current student occupancy numbers. Reducing air exchange
rates will reduce the amount of outside air that must be heated and brought into the building.
Establishing building ventilation rates that are based on actual occupancy rates and building use
schedules is critical to ensuring efficient building operations.
Lighting
Interior lighting primarily consists of T8 and T12 fluorescent fixtures, and metal halide lighting.
Exterior lighting primarily consists of metal halide and compact fluorescent lighting. Staff has
converted most of the T12 insulation to T8 and plans to complete the project. Operational costs for
lighting with existing infrastructure are kept to a minimum due to staff diligence in controlling the
lights. Replacement of existing fixtures with more efficient units and the addition of occupancy
sensors are solutions for further reductions in operational costs.
Summary
The energy audit team assessment is that the majority of the building energy losses are due to the
large area of uninsulated roof space, and ventilation rates and schedules that are not optimized in
accordance with occupancy. Once these issues have been addressed, retro-commissioning of the
ventilation and heating systems, and converting the remaining inefficient T-12 fluorescent lighting to
T-8 will further improve building efficiency.
Hoonah School 4 FINAL Energy Audit (November 2011)
Energy Efficiency Measures (EEMs)
All buildings have opportunities to improve their energy efficiency. The energy audit revealed several
opportunities in which an efficiency investment will result in a net reduction in long-term operating
costs.
Behavioral and Operational EEMs
The following EEMs require behavioral and operational changes in the building use. The savings are
not readily quantifiable but these EEMs are highly recommended as low-cost opportunities that are a
standard of high performance buildings.
EEM-1: Weather-Strip Doors
EEM-2: Replace Broken Windows
EEM-3: Install Indirect Domestic Hot Water Heaters
High and Medium Priority EEMs
The following EEMs are recommended for investment. They are ranked by life cycle savings to
investment ratio (SIR). This ranking method places a priority on low cost EEMs which can be
immediately funded, generating energy savings to fund higher cost EEMs in the following years.
Negative values, in parenthesis, represent savings.
25-Year Life Cycle Cost Analysis
Investment Operating Energy Total SIR
High Priority
EEM-4: Isolate Lag Boiler $500 $4,100 ($87,600) ($83,000) 167.0
EEM-5: Perform Boiler Combustion Test $700 $4,100 ($27,400) ($22,600) 33.3
EEM-6: Upgrade Motors $600 $0 ($16,600) ($16,000) 27.7
EEM-7: Increase Attic Insulation $67,300 $0 ($826,700) ($759,400) 12.3
EEM-8: Upgrade Interior T12 Lighting $110,400 ($86,600) ($547,100) ($523,300) 5.7
EEM-9: Replace Aerators $1,100 $0 ($5,700) ($4,600) 5.2
EEM-10: Kitchen Refrigeration Heat
Recovery $3,200 $1,000 ($14,800) ($10,600) 4.3
EEM-11: Install Valves on Unit Heaters $4,600 $0 ($17,400) ($12,800) 3.8
EEM-12: Upgrade Gym Lighting $52,200 ($2,600) ($164,900) ($115,300) 3.2
EEM-13: Optimize Ventilation Systems $158,100 $0 ($376,000) ($217,900) 2.4
Medium Priority
EEM-14: Replace Single-Pane Glazing $124,900 $0 ($186,000) ($61,100) 1.5
EEM-15: Install Modulating Boiler Burners $59,400 $17,000 ($82,300) ($5,900) 1.1
Totals* $583,000 ($63,000) ($2,352,500) ($1,832,500) 4.1
*The analysis is based on each EEM being independent of the others. While it is likely that some
EEMs are interrelated, an isolated analysis is used to demonstrate the economics because the audit
team is not able to predict which EEMs the Hoonah City School District may choose to implement. If
several EEMs are implemented, the resulting energy savings is likely to differ from the sum of each
EEM projection.
Hoonah School 5 FINAL Energy Audit (November 2011)
Summary
The energy audit revealed numerous opportunities for improving the energy performance of the
building. It is recommended that the behavioral and high priority EEMs be implemented now to
generate energy savings from which to fund the medium priority EEMs.
Another avenue to consider is to borrow money from AHFCs revolving loan fund for public
buildings. AHFC will loan money for energy improvements under terms that allow for paying back
the money from the energy savings. More information on this option can be found online at
http://www.ahfc.us/loans/akeerlf_loan.cfm.
Hoonah School 6 FINAL Energy Audit (November 2011)
Section 2
Introduction
This report presents the findings of an energy audit of the Hoonah School located in Hoonah, Alaska.
The purpose of this investment grade energy audit is to evaluate the infrastructure and its subsequent
energy performance to identify applicable energy efficiencies measures (EEMs).
The energy audit report contains the following sections:
Introduction: Building use and energy consumption.
Energy Efficiency Measures: Priority ranking of the EEMs with a description, energy analysis,
and life cycle cost analysis.
Description of Systems: Background description of the building energy systems.
Methodology: Basis for how construction and maintenance cost estimates are derived and the
economic and energy factors used for the analysis.
BUILDING USE
The Hoonah Schools are housed in a 56,330 square foot building that contains commons, classrooms,
offices, a gym, locker rooms, a kitchen and cafeteria, a library, storage, and mechanical support
spaces. Within the building is an elementary school with a student population of 70 and a staff of 15
and a middle/high school with 54 students and a staff of 15.
The facility is used in the following manner:
Elementary School 7:00 am – 5:00 pm (M-F) School Year
8:00 am – 1:00 pm (M-F) Summer Schedule (1 month)
Middle/High School 6:00 am – 5:00 pm (M-F) School Year
7:00 am – 4:00 pm (M-F) Corridor Lighting
5:00 pm – 9:00 pm (M-F) Occasional Community Use
Gym 8:30 am – 2:30 pm (M-F) School Use
3:30 pm – 7:00 pm (M-F) Sports Practice
7:00 pm – 9:00 pm Games
1 Day/Week Community Use
Hoonah School 7 FINAL Energy Audit (November 2011)
History
The history of the Hoonah School includes:
1936 – Hoonah School Constructed (Now the Erickson Building-houses Administration)
1958 – East Wing School Addition and Alterations (Currently the Elementary School Wing)
1963 – West Wing (Middle/High School) and Gym Addition
1972 – Cafeteria, Kitchen, and Library Addition
1980 – Elementary Wing and Erickson Building Renovation
1982 –Truss Roof Installation
1993 –Fire Protection/Sprinklers Installed and Mechanical Renovations
1995 –Cafeteria Remodel
1998 - Wood Shop Renovation
2000 – Roof Renovation
2002 – Elevator Addition
2003 – Elementary Wing Renovations
Energy Consumption
The building energy sources include an electric service and a fuel oil tank. Fuel oil is used for the
majority of the heating loads and domestic hot water while electricity serves all other loads. The
following table shows annual energy use and cost.
Annual Energy Consumption and Cost
Source Consumption Cost Energy, MMBtu
Electricity 343,020 kWh $140,900 1,200 31%
Fuel Oil 19,721 Gallons $91,300 2,700 69%
Totals $232,200 3,900 100%
Electricity
This chart shows electrical
energy use from 2007 to
2010.
The effective cost—energy
costs plus demand charges—
is 41.0¢ per kWh.
Hoonah School 8 FINAL Energy Audit (November 2011)
Fuel Oil
This chart shows heating energy use
from 2007 to 2010. The chart
compares annual use with heating
degree days, which is a measure of
the demand for energy to heat a
building.
A year with a higher number of
degree days reflects colder outside
temperatures and a higher heating
requirement.
IPEC Waste Heat
The Inside Passage Electrical Cooperative will be installing a waste heat recovery system where they
will sell hydronic heating water to the pool and gym building. A cost comparison between fuel oil
boiler heat and IPEC waste heat is:
Fuel Oil Boilers: $4.63 per gallon x 138.5 kBtu/gallon / 70% efficiency=$47.76 per MMBtu.
IPEC: 1 MMBtu / 114,000 Btu/gal x 50% x $4.02 per gallon = $17.63 per MMBtu
The IPEC waste heat will cost 37% of the cost of fuel oil boiler heat, a significant savings.
Cost of Heat
The current cost of fuel oil in Hoonah is $4.63 per gallon. Assuming a fuel oil conversion efficiency
of 70% and an electric boiler conversion efficiency of 95%, oil heat at $4.63 per gallon equates to
$47.76 per MMBtu. Electric heat at the current cost of 42.0¢ per kWh equates to $126.75 per
MMBtu. Fuel oil heat is much less expensive than electric heat.
Hoonah School 9 FINAL Energy Audit (November 2011)
Section 3
Energy Efficiency Measures
The following energy efficiency measures (EEMs) were identified during the energy audit. The
EEMs are priority ranked and, where applicable, subjected to energy and life cycle cost analysis.
Appendix A contains the energy and life cycle cost analysis spreadsheets.
The EEMs will be grouped into the following prioritized categories:
Behavioral or Operational: EEMs that require minimal capital investment but require operational
or behavioral changes. The EEMs provide a life cycle savings but an analysis is not performed
because the guaranteed energy savings is difficult quantify.
High Priority: EEMs that require a small capital investment and offer a life cycle savings. Also
included in this category are higher cost EEMs that offer significant life cycle savings.
Medium Priority: EEMs that require a significant capital investment to provide a life cycle
savings. Many medium priority EEMs provide a high life cycle savings and offer substantial
incentive to increase investment in building energy efficiency.
Low Priority: EEMs that will save energy but do not provide a life cycle savings.
BEHAVIORAL OR OPERATIONAL
The following EEMs are recommended for implementation. They require behavioral or operational
changes that can occur with minimal investment to achieve immediate savings. These EEMs are not
easily quantified by analysis because they cannot be accurately predicted. They are recommended
because they offer a life cycle savings, represent good practice, and are accepted features of high
performance buildings.
EEM-1: Weather-Strip Doors
Purpose: The high school exterior steel doors do not seal and are missing weather stripping.
Energy will be saved if doors are properly weather-stripped to reduce infiltration.
Scope: Replace weather stripping on exterior doors.
Analysis: Recommended without analysis.
EEM-2: Replace Broken Windows
Purpose: Two windows are broken and plywood has been used as a temporary repair. Energy will
be saved if broken windows are replaced.
Scope: Replace broken windows.
Hoonah School 10 FINAL Energy Audit (November 2011)
EEM-3: Install Indirect Domestic Hot Water Heaters
Purpose: The existing domestic hot water system consists of a 125 gallon oil-fired hot water heater
in the boiler building and a large hot water storage tank in the school. The system has
reached the end of its service life and is oversized and inefficient. Energy will be saved if
the hot water system is replaced with two indirect hot water tanks located in the school
building.
Scope: Replace the hot water system with two indirect hot water heaters located in the school.
Compared to replacing the existing system in-kind, this system has lower construction,
maintenance, and energy costs.
HIGH PRIORITY
The following EEMs are recommended for implementation because they are low cost measures that
have a high savings to investment ratio. The EEMs are listed from highest to lowest priority. Negative
values, in parenthesis, represent savings.
EEM-4: Isolate Lag Boiler
Purpose: Only one boiler is required to meet the heating load; however the lag boiler is not isolated
so it remains hot. Circulating hot water through an isolated boiler in a dual boiler system
can result in a loss 0.75% input in the rating of the operable boiler due to the isolated
boiler acting as a heat sink. Energy will be saved by isolating the lag boiler
Scope: During the shoulder seasons, turn off and isolate the lag boiler by closing the heating
supply valve.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$240 ($3,090) ($2,850) $500 $4,100 ($87,600) ($83,000) 167.0
EEM-5: Perform a Boiler Combustion Test
Purpose: Operating the boiler with an optimum amount of excess air will improve combustion
efficiency. Annual cleaning followed by a combustion test is recommended.
Scope: Annually clean and perform a combustion test on the boiler.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$240 ($970) ($730) $700 $4,100 ($27,400) ($22,600) 33.3
Hoonah School 11 FINAL Energy Audit (November 2011)
EEM-6: Upgrade Motors
Purpose: The equipment inspection identified seven motors that could be upgraded with premium
efficiency models to save energy. They are:
AHU-1 2 HP from 84.0% efficiency to 86.5% efficiency
AHU-2 3 HP from 85.5% efficiency to 89.5% efficiency
AHU-3 5 HP from 85.0% efficiency to 89.5% efficiency
AHU-HS 3 HP from 75.0% efficiency to 89.5% efficiency
AHU-6 1/2 HP from 62.0% efficiency to 75.5% efficiency
Scope: Replace identified motors with premium efficiency motors.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($590) ($590) $600 $0 ($16,600) ($16,000) 27.7
EEM-7: Increase Attic Insulation
Purpose: The most significant finding from an energy efficiency perspective is that the attics are
under-insulated. All of them have open truss construction that is an excellent candidate
for blown-in insulation. A significant reduction in fuel oil consumption can be quickly
realized if a simple blown-in insulation is added to these attic spaces to increase the
insulation value to the R-60 optimum level used in today’s energy efficient buildings.
Scope: Install blow-in insulation to bring the attic insulation up to a level of R-60.
There is likely opportunity to also improve the attic insulation over the Erickson
Building. The audit team could not gain access to this space but the documentation
indicates that the truss roof over this building did not include additional insulation.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($29,170) ($29,170) $67,300 $0 ($826,700) ($759,400) 12.3
EEM-8: Upgrade Interior T12 Lighting
Purpose: Despite efforts to upgrade to more efficient T8 lighting, the majority of the interior
lighting consists of T12 fluorescent fixtures. Energy will be saved if more efficient T8
and compact fluorescent lamps are used in the remaining fixtures.
Scope: Replace existing T12 fixtures with more efficient T8 fixtures.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
($5,090) ($19,300) ($24,390) $110,400 ($86,600) ($547,100) ($523,300) 5.7
Hoonah School 12 FINAL Energy Audit (November 2011)
EEM-9: Replace Aerators
Purpose: Energy and water will be saved by replacing the aerators on the lavatories and
showerheads with low-flow models.
Scope: Replace aerators on lavatories and showerheads with water-conserving fixtures.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($200) ($200) $1,100 $0 ($5,700) ($4,600) 5.2
EEM-10: Kitchen Refrigeration Heat Recovery
Purpose: A large amount of heat is generated by the walk-in kitchen refrigerator in the space
adjacent to the cafeteria. Currently this heat is exhausted outside of the building
envelope. Energy will be saved if this heat is re-routed to the cafeteria space.
Scope: Re-route the ducting from walk-in refrigerator compressor to discharge the air to the
cafeteria.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$60 ($520) ($460) $3,200 $1,000 ($14,800) ($10,600) 4.3
EEM-11: Install Automatic Valves on Unit Heaters
Purpose: Energy will be saved if the six wall and ceiling mounted fan coil unit heaters have
automatic valves that shut off the heating flow when heat is not needed. Currently the
coils in the unit heaters are continuously hot and the thermostat turns on the fan to supply
the heat to the room. When heat is not needed, convective heat loss from the coil occurs;
some of the heat loss may be useful, but a large percentage is not.
Scope: Install automatic valves in the heating supply to each unit heater and control them from
the fan thermostat.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($610) ($610) $4,600 $0 ($17,400) ($12,800) 3.8
EEM-12: Upgrade Gym Lighting
Purpose: Existing gym lighting consists of pendant-mounted 400 watt metal halide fixtures that
operate 55 hours per week to support school-hour class activities and after-school sports
and community events. Similar light levels could be achieved with multi-lamp T5
lighting. Energy will be saved if the metal halide light fixtures are replaced with 6-bulb
T5 units.
Scope: Replace metal halide lights with 6-bulb T5 units.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
($160) ($5,820) ($5,980) $52,200 ($2,600) ($164,900) ($115,300) 3.2
Hoonah School 13 FINAL Energy Audit (November 2011)
EEM-13: Optimize Ventilation Systems
Purpose: The ventilation systems do not have optimal control strategies that minimize energy
consumption while maintaining good thermal comfort and indoor air quality. This results
in unnecessarily high fuel and electric use. Energy will be saved if the ventilation systems
are optimized for actual building use.
Scope: Optimize the ventilation systems as follows:
AHU-1 Cafeteria
- Convert to demand controlled ventilation.
- Adjust the outside air damper so it seals tight when fan is off.
AHU-2 Library
- Convert to demand controlled ventilation.
AHU-3 Gym
- Turn off the heating coil when fan is off.
AHU-4 Lockers
- Eliminate AHU-4, remove diffusers and seal ceiling openings.
- Decrease EF-2 exhaust rate from toilet rooms. Increase office exhaust air to bring
transfer air into the rooms, improving ventilation.
AHU-High School
- Increase Mixed Air Setpoint – from 55°F to 62°F. This will decrease the heating
load while maintaining adequate indoor air quality.
AHU-5 (Elementary School)
- Control exhaust air damper (EAD) from building pressure.
Optimize Schedules
- Current schedules have been improved over the original setpoints, however
operating hours and are not fully tailored to current building use.
- Perform an integrated building-wide retro-commissioning upon completion of
optimization of control sequences.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($13,270) ($13,270) $158,100 $0 ($376,000) ($217,900) 2.4
Hoonah School 14 FINAL Energy Audit (November 2011)
MEDIUM PRIORITY
Medium priority EEMs will require planning and a higher level of investment. They are
recommended because they offer a life cycle savings. The EEMs are listed from highest to lowest
priority.
EEM-14: Replace Single-Pane Glazing
Purpose: Single pane glazing with interior storm windows has an insulation value of approximately
R-1.25. Some school windows have already been upgraded to more efficient double pane
units, however over 66 inefficient windows remain. Energy will be saved if these single
pane glazing units are replaced with energy efficient R-3 double pane glazing.
Scope: Replace single pane glazing with energy efficient double pane glazing units.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$0 ($6,560) ($6,560) $124,900 $0 ($186,000) ($61,100) 1.5
EEM-15: Install Modulating Boiler Burners
Purpose: The boiler burners do not incorporate modulating burner controls. Energy will be saved if
the boiler firing rate modulated as necessary.
Scope: Install modulating burners on the boilers.
Annual Costs Life Cycle Costs
Operating Energy Total Investment Operating Energy Total SIR
$1,000 ($2,900) ($1,900) $59,400 $17,000 ($82,300) ($5,900) 1.1
Hoonah School 15 FINAL Energy Audit (November 2011)
LOW PRIORITY
Low priority EEMs do not offer a life cycle energy savings and are not recommended.
EEM-16: Install Occupancy Sensors
Purpose: Lighting in many spaces of the building is still controlled with manual switching even
though the electrical rate is $0.42/kwh. Energy will be saved if lighting controls are
installed to turn off lighting in unoccupied rooms:
Classrooms: 2 rooms w/ (15) 4-lamp fixtures each
3 rooms w/ (12) 4-lamp fixtures each
2 rooms w/ (9) 4-lamp fixtures each
School Offices: 1 room w/ (9) 2-lamp fixtures
1 room w/ (6) 2-lamp fixtures
Admin Offices 2 rooms w/ (6) 4-lamp fixtures
2 rooms w/ (3) 4-lamp fixtures
1 room w/ (12) 4-lamp fixtures
Scope: Install occupancy sensors in each of the spaces listed above.
Observations during the audit confirmed that occupants are diligent about turning off
lighting. Therefore, there is no incentive to install occupancy sensors.
Hoonah School 16 FINAL Energy Audit (November 2011)
Section 4
Description of Systems
ENERGY SYSTEMS
This section provides a general description of the building systems. Energy conservation
opportunities are addressed in Section 3, Energy Efficiency Measures.
Building Envelope
The following table summarizes the existing envelope.
Building Envelope
R-value
Component Description (inside to outside) Existing Optimal
Exterior Wall Gyp. Bd, 2x6 stud walls, R-19 batt, ½” plywood, siding R-17 R-30
Roof (Elementary) 24” o.c. trusses w/ R-30 batt R-30 R-60
Roof (Library/H.S.) 4”x6” T&G deck w/ 2” buildup R-5 R-60
Roof (Gym/Shop) 24” o.c. trusses w/ R-38 batt R-38 R-60
Roof (H.S. East) 4”x6” T&G deck w/ 2” foam insulation R-15 R-60
Floor Slab 4” concrete slab-on-grade R-10 R-15
Foundation 8” concrete - uninsulated R-5 R-20
Windows Aluminum clad wood frame single pane w/ storm windows R-1.25 R-5
Doors Steel doors w/ non-thermally broken frames R-1.5 R-5
Heating System
The building is heated by two fuel oil boilers that provide heat to five air handling unit systems, fan
coil units, and perimeter hydronic systems. The heating system has the following pumps:
Pump P-1A & P-1B are heating supply pumps.
Pump P-2 is the boiler header circulation pump.
Pump P-3 is the primary domestic hot water circulation pump.
Pump P-4 is the glycol pump.
Pump P-5 is the secondary domestic hot water circulation pump.
Hoonah School 17 FINAL Energy Audit (November 2011)
Ventilation Systems
The following table summarizes the ventilation systems in the building.
Ventilation Systems
Area Fan System Description
Cafeteria AHU-1 Constant volume air handling unit consisting of a heating coil,
mixing box, filter section, and supply fan
Woodshop AHU-1 Constant volume air handling unit consisting of a heating coil,
mixing box, filter section, and supply fan
Library AHU-2 Constant volume air handling unit consisting of a heating coil,
mixing box, filter section, and supply fan
Gym AHU-3 Constant volume air handling unit consisting of a heating coil,
mixing box, filter section, and supply fan
Locker/Weight Room AHU-4 Constant volume air handling unit consisting of a heating coil,
filter section, and supply fan
Elementary AHU-5 Constant volume air handling unit consisting of a heating coil,
filter section, and supply fan
Wood Shop AHU-6 Constant volume air handling unit consisting of a heating coil,
filter section, and supply fan
High School Area AHU-High School Constant volume air handling unit consisting of a heating coil,
mixing box, filter section, and supply fan
Gym RF-1 Constant volume relief air fan for the gym
Elementary Toilet Exhaust EF-1 Constant volume exhaust air fan for elementary toilet rooms
Woodshop EF-1 Constant volume exhaust air fan for the woodshop
Locker/Weight Room EF-2 Constant volume exhaust air fan for locker rooms and weight
room
Kitchen EF-2 Constant volume exhaust air fan for the kitchen
Woodshop EF-2 Constant volume exhaust air fan for the woodshop
High School Toilet Exhaust EF-3 Constant volume exhaust air fan for high school toilet rooms
Domestic Hot Water System
The domestic hot water heating systems consists of one 125-gallon fuel oil-fired water heater in the
boiler building and one insulated domestic hot water storage tank in the school building. The capacity
of the system is oversized and the existing fuel oil-fired water heater is past its useful life A
significant savings can be shown in the right-sizing of the system to support current facility use.
These components should be replaced with two indirect hot water heaters located in the school
building. The water conservation efficiency of the aerators on the lavatories and the showerheads can
be improved.
Hoonah School 18 FINAL Energy Audit (November 2011)
Automatic Control System
The building has a DDC system to control the operation of the heating and ventilation systems.
Energy will be saved through further optimization of fan system scheduling combined with a retro-
commissioning of the air handler systems.
Lighting
Interior lighting primarily consists of T8 and T12 fluorescent fixtures, and metal halide lighting.
Exterior lighting primarily consists of metal halide and compact fluorescent lighting. Staff has
converted most of the T12 insulation to T8 and plans to complete the project. Operational costs for
lighting with existing infrastructure are kept to a minimum due to staff diligence in controlling the
lights. Replacement of existing fixtures with more efficient units and the addition of occupancy
sensors are solutions for further reductions in operational costs.
Electric Equipment
Commercial equipment for food preparation is located in the kitchen and surrounding spaces.
Hoonah School 19 FINAL Energy Audit (November 2011)
Section 5
Methodology
Information for the energy audit was gathered through on-site observations, review of construction
documents, and interviews with operation and maintenance personnel. The EEMs are evaluated using
energy and life cycle cost analyses and are priority ranked for implementation.
Energy Efficiency Measures
Energy efficiency measures are identified by evaluating the building’s energy systems and comparing
them to systems in modern, high performance buildings. The process for identifying the EEMs
acknowledges the realities of an existing building that was constructed when energy costs were much
lower. Many of the opportunities used in modern high performance buildings—highly insulated
envelopes, variable capacity mechanical systems, heat pumps, daylighting, lighting controls, etc.—
simply cannot be economically incorporated into an existing building.
The EEMs represent practical measures to improve the energy efficiency of the buildings, taking into
account the realities of limited budgets. If a future major renovation project occurs, additional EEMs
common to high performance buildings should be incorporated.
Life Cycle Cost Analysis
The EEMs are evaluated using life cycle cost analysis which determines if an energy efficiency
investment will provide a savings over a 25-year life. The analysis incorporates construction,
replacement, maintenance, repair, and energy costs to determine the total cost over the life of the
EEM. Future maintenance and energy cash flows are discounted to present worth using escalation
factors for general inflation, energy inflation, and the value of money. The methodology is based on
the National Institute of Standards and Technology (NIST) Handbook 135 – Life Cycle Cost
Analysis.
Life cycle cost analysis is preferred to simple payback for facilities that have long—often perpetual—
service lives. Simple payback, which compares construction cost and present energy cost, is
reasonable for short time periods of 2-4 years, but yields below optimal results over longer periods
because it does not properly account for the time value of money or inflationary effects on operating
budgets. Accounting for energy inflation and the time value of money properly sums the true cost of
facility ownership and seeks to minimize the life cycle cost.
Construction Costs
The cost estimates are derived based on a preliminary understanding of the scope of each EEM as
gathered during the walk-through audit. The construction costs for in-house labor are $60 per hour for
work typically performed by maintenance staff and $110 per hour for contract labor.
The cost estimate assumes the work will be performed as part of a larger renovation or energy
efficiency upgrade project. When implementing EEMs, the cost estimate should be revisited once the
scope and preferred method of performing the work has been determined. It is possible some EEMs
will not provide a life cycle savings when the scope is finalized.
Hoonah School 20 FINAL Energy Audit (November 2011)
Maintenance Costs
Maintenance costs are based on in-house or contract labor using historical maintenance efforts and
industry standards. Maintenance costs over the 25-year life of each EEM are included in the life cycle
cost calculation spreadsheets and represent the level of effort to maintain the systems.
Energy Analysis
The energy performance of an EEM is evaluated within the operating parameters of the building. A
comprehensive energy audit would rely on a computer model of the building to integrate building
energy systems and evaluate the energy savings of each EEM. This investment grade audit does not
utilize a computer model, so energy savings are calculated with factors that account for the dynamic
operation of the building. Energy savings and costs are estimated for the 25-year life of the EEM
using appropriate factors for energy inflation.
Prioritization
Each EEM is prioritized based on the life cycle savings to investment ratio (SIR) using the following
formula:
Prioritization Factor = Life Cycle Savings / Capital Costs
This approach factor puts significant weight on the capital cost of an EEM, making lower cost EEMs
more favorable.
Economic Factors
The following economic factors are significant to the findings.
Nominal Interest Rate: This is the nominal rate of return on an investment without regard to
inflation. The analysis uses a rate of 5%.
Inflation Rate: This is the average inflationary change in prices over time. The analysis uses an
inflation rate of 2%.
Economic Period: The analysis is based on a 25-year economic period with construction
beginning in 2010.
Fuel Oil
Fuel oil currently costs $4.63 per gallon for a seasonally adjusted blend of #1 and #2 fuel oil. The
analysis is based on 6% fuel oil inflation which has been the average for the past 20-years.
Hoonah School 21 FINAL Energy Audit (November 2011)
Electricity
Electricity is supplied by Inside Passage Electrical Cooperative. The building is billed for electricity
under the Large Power Interruptible rate. This rate charges for both electrical consumption (kWh) and
peak electric demand (kW). Electrical consumption is the amount of energy consumed and electric
demand is the rate of consumption.
ELECTRIC RATE
Large Power Interruptible
Electricity ($ / kWh )
1-60,000 kWh $0.4000
60,000-240,000 kWh $0.3784
>240,000 kWh $0.3679
Customer Charge $160.00
Summary
The following table summarizes the energy and economic factors used in the analysis.
Summary of Economic and Energy Factors
Factor Rate or Cost Factor Rate or Cost
Nominal Discount Rate 5% Electricity $0.42/kwh
General Inflation Rate 2% Electricity Inflation 6%
Fuel Oil Cost (2012) $4.63/gal Fuel Oil Inflation 6%
Hoonah School 22 FINAL Energy Audit (November 2011)
Appendix A
Energy and Life Cycle Cost Analysis
Hoonah School 23 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Hoonah Schools
Basis
Economic
Study Period (years) 25 Nominal Discount Rate 5%General Inflation 2%
Energy
2011 $/gal Fuel Inflation 2012 $/gal
Fuel Oil $4.63 6% $4.91
Electricity $/kWh (2011)$/kW (2011)Inflation $/kWh (2012)$/kW (2012)
w/ Demand Charges $0.410 $0.00 6% $0.435 $0.00
w/o Demand Charges $0.410 -6% $0.435 -
EEM-4: Isolate Lag Boiler
Energy Analysis
Boiler Input MBH Loss %Loss MBH Hours, exist Hours, new kBtu η boiler Gallons
B-1 2,440 0.75% 18 6,480 3,240 -59,292 68%-630
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Establish new boiler operating procedure 0 1 ea $500 $500
Annual Costs
Isolate lag boiler 1 - 25 4 hrs $60.00 $4,086
Energy Costs
Fuel Oil 1 - 25 -630 gal $4.91 ($87,578)
Net Present Worth ($83,000)
EEM-5: Perform Boiler Combustion Test
Energy Analysis
Annual Gal % Savings Savings, Gal
19,721 -1.0% -197
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Purchase combustion analyzer 0 1 LS $700 $700
Annual Costs
Combustion test 1 - 25 4 hrs $60.00 $4,086
Energy Costs
Fuel Oil 1 - 25 -197 gal $4.91 ($27,434)
Net Present Worth ($22,600)
Hoonah School 24 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Hoonah Schools
EEM-6: Upgrade Motors
Energy Analysis
Equip Number HP ηold ηnew kW Hours kWh
AHU-6 1 0.5 62.0% 75.5% -0.05 1,980 -100
AHU-1 1 2 84.0% 86.5% -0.04 1,980 -74
AHU-2 1 3 85.0% 89.5% -0.10 1,980 -199
AHU-HS 1 3 75.0% 89.5% -0.32 1,980 -643
AHU-3 1 5 85.0% 89.5% -0.17 1,980 -332
-0.7 -1,348
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs HP
Replace motor 0.5 0 1 LS 600 $600
Replace motor 2 0 0 LS 970 $0
Replace motor 3 0 0 LS 1,080 $0
Replace motor 5 0 0 LS 1,290 $0
Energy Costs
Electric Energy 1 - 25 -1,348 kWh $0.435 ($16,603)
Net Present Worth ($16,000)
EEM-7: Increase Attic Insulation
Energy Analysis
Component Area R,exist R,new ΔT MBH kBtu η boiler Gallons
HS East 4,880 15 60 20 -4.9 -42,749 68%-454
Elementary 11,385 26 60 20 -5.0 -43,473 68%-462
Gym 7,545 30 60 20 -2.5 -22,031 68%-234
HS/MS/Library 14,055 5 60 20 -51.5 -451,447 68%-4,793
37,865 -63.9 -559,700 -5,943
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Install blown-in insulation 0 37,865 sqft $1.00 $37,865
Estimating contingency 0 15%$5,680
Overhead & profit 0 30% $13,063
Design fees 0 10%$5,661
Project management 0 8%$4,982
Energy Costs
Fuel Oil 1 - 25 -5,943 gal $4.91 ($826,709)
Net Present Worth ($759,500)
Hoonah School 25 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Hoonah Schools
EEM-8: Upgrade Interior T12 Lighting
Energy Analysis
Electric Savings
Type # Fixtures Lamp Lamp, watts Fixture Watts Lamp Lamp, watts Fixture Watts Savings, kWh
Surface 285 2T12 80 92 2T8 -60 -18,058
Surface 128 4T12 160 184 4T8 -80 -26,358
-44,415
Additional Heating Load
kWh Factor kBtu η boiler Gallons
44,415 80% 121,236 68% 1,287
Lamp Replacement
Type # Fixtures Lamp # Lamps Life, hrs Lamps//yr $/lamp
Surface 285 2T12 -2 20,000 -124.83 $8
Surface 128 4T12 -4 20,000 -112.13 $8
Surface 285 2T8 2 36,000 69.35 $4
Surface 128 4T8 4 36,000 62.29 $4
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Replace 2T12 ballast and lamps with T8 0 285 LS $148 $42,180
Replace 4T12 ballast and lamps with T8 0 128 LS $156 $19,968
Estimating contingency 0 15%$9,322
Overhead & profit 0 30% $21,441
Design fees 0 10%$9,291
Project management 0 8%$8,176
Annual Costs
Existing lamp replacement, 2T12 1 - 25 -124.83 lamps $26.00 ($55,263)
Existing lamp replacement, 4T12 1 - 25 -112.13 lamps $42.00 ($80,187)
Lamp replacement, 2T8 1 - 25 69.35 lamps $18.00 $21,255
Lamp replacement, 4T8 1 - 25 62.29 lamps $26.00 $27,577
Energy Costs
Electric Energy 1 - 25 -44,415 kWh $0.435 ($547,132)
Fuel Oil 1 - 25 1,287 gal $4.91 $179,073
Net Present Worth ($523,400)
EEM-9: Replace Aerators
Energy Analysis
η boiler 68%
Fixture Existing Proposed Uses/day Days Water,Gals % HW kBTU Gallons
Showerhead 20.0 10.0 20 10 -2,000 80% -1,068 -11
Lavatories 0.3 0.2 100 180 -3,240 80% -1,729 -18
-5,240 -29
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Replace lavatory aerators 0 21 ea $35 $735
Replace showerhead 0 11 ea $35 $385
Energy Costs
Water 1 - 25 -5 kgals $10.960 ($1,628)
Fuel Oil 1 - 25 -29 gal $4.91 ($4,037)
Net Present Worth ($4,500)
Gallons per Use
Existing Replacement
Hoonah School 26 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Hoonah Schools
EEM-10: Kitchen Refrigeration Heat Recovery
Energy Analysis
Heat Recovery
HP MBH/kW Heat, MBH Factor kBtu η boiler Gallons
-1.2 5 -4.5 40% -11,602 68% -123
Fan Energy
Unit BHP kW Hours kWh
Fan 0.10 0.07 2,500 187
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Ductwork to discharge heat to cafeteria 0 1 LS $2,000 $2,000
Estimating contingency 0 5%$100
Overhead & profit 0 30%$630
Design fees 0 10%$273
Project management 0 8%$240
Annual Costs
Fan maintenance 1 - 25 1 LS $60.00 $1,022
Energy Costs
Electric Energy 1 - 25 187 kWh $0.435 $2,297
Fuel Oil 1 - 25 -123 gal $4.91 ($17,137)
Net Present Worth ($10,600)
EEM-11: Install Valves on Unit Heaters
Energy Analysis
Loss, BTUH Number Factor Loss, kBTU Boiler Effic Fuel, gals
-1,500 6 15% -11,826 70% -125
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Install automatic valves and connect to fan wiring 0 6 ea $500 $3,000
Overhead & profit 0 30%$900
Design fees 0 10%$390
Project management 0 8%$343
Energy Costs
Fuel Oil 1 - 25 -125 gal $4.91 ($17,409)
Net Present Worth ($12,800)
Hoonah School 27 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Hoonah Schools
EEM-12: Upgrade Gym Lighting
Energy Analysis
Lamp Lamp, watts Fixture Watts Lamp Lamp, watts Fixture Watts kW Hours kWh
MH 400 460 T5 310 357 -5.8 2,310 -13,389
Additional Heating Load
kWh Factor kBtu η boiler Gallons
13,389 25% 11,421 68% 121
Lamp Replacement
# Fixtures Lamp # Lamps Life, hrs Replace/yr $/lamp replace
56 MH -1 20,000 -6.47 $30
56 T5 6 30,000 4.31 $24
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Replace 400 watt MH with T5 Fluorescent 0 56 LS $525 $29,400
Estimating contingency 0 15%$4,410
Overhead & profit 0 30% $10,143
Design fees 0 10%$4,395
Project management 0 8%$3,868
Annual Costs
Existing lamp replacement, 400 watt MH 1 - 25 -6.47 replacements $60.00 ($6,608)
New lamp replacement, T5 1 - 25 4.31 replacements $54.00 $3,965
Energy Costs
Fuel Oil 1 - 25 121 gal $4.91 $16,869
Electric Energy 1 - 25 -13,389 kWh $0.435 ($164,930)
Net Present Worth ($98,500)
Fixtures
56
SavingsExistingReplacement
Hoonah School 28 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Hoonah Schools
EEM-13: Optimize Ventilation Systems
Energy Analysis
Fan Case CFM ΔP η, fan BHP η, motor kW Hours kWh
AHU-4 Existing -2,350 2.00 55%-1 86%-1 1,800 -2,112
Optimized 0 2.00 55%0 86%0 1,800 0
EF-2 Existing -2,350 0.38 50%0 75%0 1,800 -496
Optimized 1,000 0.38 55%0 75%0 1,800 192
-1 -2,416
Ventilation SA CFM MAT T,room MBH Hours kBtu η boiler Gallons
AHU-1 Existing -2,350 65 70 -13 1,800 -22,842 68%-243
Optimized 3,000 68 70 6 1,800 11,664 68%124
AHU-2 Existing -4,500 62 70 -39 1,800 -69,984 68%-743
Optimized 4,500 67 70 15 1,800 26,244 68%279
AHU-4 Existing -2,350 40 70 -76 1,800 -137,052 68%-1,455
EF-2 Optimized 1,000 62 70 9 1,800 15,552 68%165
AHU-HS Existing -4,000 55 70 -65 1,800 -116,640 68%-1,238
Optimized 4,000 62 70 35 1,800 62,208 68%661
-230,850 -2,451
Unit Loss, BTUH Number Factor Loss, kBTU Boiler Effic Fuel, gals
AHU-3 -2,000 1 20% -3,504 68% -38
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Optimize control sequences 0 1 LS $25,000 $25,000
Retrocommission systems 0 8 LS $8,000 $64,000
Estimating contingency 0 15% $13,350
Overhead & profit 0 30% $30,705
Design fees 0 10% $13,306
Project management 0 8% $11,709
Energy Costs
Electric Energy 1 - 25 -2,416 kWh $0.435 ($29,761)
Fuel Oil 1 - 25 -2,489 gal $4.91 ($346,289)
Net Present Worth ($218,000)
EEM-14: Replace Single-Pane Glazing
Energy Analysis
Component Area R,exist R,new ΔT MBH kBtu η boiler Gallons
Windows 1,078 1.0 3.0 20 -14.4 -125,910 68%-1,337
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Replace window glazing unit 0 1,078 sqft $75 $80,850
Overhead & profit 0 30% $24,255
Design fees 0 10% $10,511
Project management 0 8%$9,249
Energy Costs
Fuel Oil 1 - 25 -1,337 gal $4.91 ($185,977)
Net Present Worth ($61,100)
Hoonah School 29 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Energy and Life Cycle Cost Analysis
25200 Amalga Harbor Road Tel/Fax: 907.789.1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Hoonah Schools
EEM-15: Install Modulating Boiler Burners
Energy Analysis
Annual Gal % Savings Savings, Gal
19,721 -3.0% -592
Life Cycle Cost Analysis Year Qty Unit Base Cost Year 0 Cost
Construction Costs
Install modulating burner 0 2 LS $25,000 $50,000
Design fees 0 10%$5,000
Project management 0 8%$4,400
Annual Costs
Burner maintenance 1 - 25 2 LS $500.00 $17,027
Energy Costs
Fuel Oil 1 - 25 -592 gal $4.91 ($82,301)
Net Present Worth ($5,900)
Hoonah School 30 FINAL Energy Audit (November 2011)
Appendix B
Energy and Utility Data
Hoonah School 31 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Billing Data
25200 Amalga Harbor Road Tel/Fax: 907-789-1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Hoonah City Schools
ELECTRIC RATE
Electricity ($ / kWh )
1-60,000 kWh $0.4000
60,000-240,000 kWh $0.3784
>240,000 kWh $0.3679
Customer Charge $160.00
ELECTRICAL CONSUMPTION AND DEMAND
2007 2008 2009 2010
kWh kWh kWh kWh
Jan 36,400 32,000 31,520 31,280 32,800
Feb 37,440 37,200 34,000 29,760 34,600
Mar 39,680 30,720 30,720 31,680 33,200
Apr 40,960 34,960 32,640 33,280 35,460
May 35,120 29,360 31,280 28,720 31,120
Jun 28,640 16,320 19,360 18,320 20,660
Jul 18,080 11,040 10,080 16,800 14,000
Aug 19,200 15,120 12,880 20,320 16,880
Sep 34,400 22,640 26,560 32,000 28,900
Oct 30,560 27,600 31,440 33,520 30,780
Nov 33,200 30,240 32,640 31,680 31,940
Dec 32,720 34,080 32,640 31,280 32,680
Total 386,400 321,280 325,760 338,640 343,020
Average 32,200 26,773 27,147 28,220 28,585
ELECTRIC BILLING DETAILS
Month Energy Total Energy Total % Change
Jan $12,608 $12,768 $13,120 $13,280 4.0%
Feb $13,600 $13,760 $13,840 $14,000 1.7%
Mar $12,288 $12,448 $13,280 $13,440 8.0%
Apr $13,056 $13,216 $14,184 $14,344 8.5%
May $12,512 $12,672 $12,448 $12,608 -0.5%
Jun $7,744 $7,904 $8,264 $8,424 6.6%
Jul $4,032 $4,192 $5,600 $5,760 37.4%
Aug $5,152 $5,312 $6,752 $6,912 30.1%
Sep $10,624 $10,784 $11,560 $11,720 8.7%
Oct $12,576 $12,736 $12,312 $12,472 -2.1%
Nov $13,056 $13,216 $12,776 $12,936 -2.1%
Dec $13,056 $13,216 $13,072 $13,232 0.1%
Total $ 130,304 $ 132,224 $ 137,208 $ 139,128 5.2%
Average $ 10,859 $ 11,019 $ 11,434 $ 11,594 5.2%
Cost ($/kWh) $0.406 $0.411 1.2%
2009 2010
Electrical costs are based on the current electric rates.
Large Power Interruptible
Month Average
Hoonah School 32 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Annual Electric Consumption
25200 Amalga Harbor Road Tel/Fax: 907-789-1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Hoonah City Schools
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
45,000
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov DecElectric Use (kWh)Month of the Year
Electric Use History
2007
2008
2009
2010
$ 0
$ 2,000
$ 4,000
$ 6,000
$ 8,000
$ 10,000
$ 12,000
$ 14,000
$ 16,000
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov DecElectric Cost (USD)Month of the Year
Electric Cost Breakdown
2010
Hoonah School 33 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Annual Fuel Oil Consumption
25200 Amalga Harbor Road Tel/Fax: 907-789-1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Hoonah City Schools
#DIV/0!
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Year Fuel Oil Degree Days
2,007 31,011 9,282
2,008 27,739 9,093
2,009 16,496 9,284
2,010 22,945 9,013
5,000
6,000
7,000
8,000
9,000
10,000
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
2007 2008 2009 2010 Degree DaysGallons of Fuel OilYear
Annual Fuel Oil Use
Fuel Oil
Degree Days
Hoonah School 34 FINAL Energy Audit (November 2011)
Alaska Energy Engineering LLC Billing Data
25200 Amalga Harbor Road Tel/Fax: 907-789-1226
Juneau, Alaska 99801 jim@alaskaenergy.us
Annual Energy Consumption and Cost
Energy Cost $/MMBtu Area ECI EUI
Fuel Oil $4.63 $47.76 49,935 $4.65 78
Electricity $0.411 $126.75
Source Cost
Electricity 343,020 kWh $140,900 1,200 31%
Fuel Oil 19,721 Gallons $91,300 2,700 69%
Totals $232,200 3,900 100%
Annual Energy Consumption and Cost
Consumption Energy, MMBtu
Hoonah School 35 FINAL Energy Audit (November 2011)
Appendix C
Equipment Data
Hoonah School 36 FINAL Energy Audit (November 2011)
Unit ID Location FunctionMakeModelCapacity Motor HP / Volts / RPM / Effic NotesAHU 1Fan Room High SchoolCafeteriaA-12 FC DWD1 3000 CFM 2 HP/ 208 V/ 1745 RPM/ 84%AHU 2Fan Room High SchoolLibraryPACE A-15 FC DWD1 4500 CFM 3 HP/ 1745 RPM/ 208 V/ 85.5%AHU 3 GymGym9600 CFM 5 HP/ 85%estimated 1.5' headAHU 4 AtticLockersPACE2350 CFM not available2" Head Pressure, 100% outside airAHU 5 Fan Room ElementaryClassroomScott Springfield HR80AHU7200H 7200 CFM 7 1/2 HP/ 208 V/ 1760 RPM/ 91%2.25" Head PressureRF 5Fan Room Elementary6000 CFM 2 HP/ 208 V/ 1760 RPM/84% 1" Head PressureAHUHigh School Truss BayPAT Room High School Traine T-103 HP/ 208 V/ 1725 RPM/ 75%EF 1 Elementary ClassroomEF 2 Wood Shop Shop ExhaustEF 2 Attic High School LockersPace2350 CFM not available3/8" Head PressureEF 1Fan Room High SchoolKitchen Hood ExhaustEF 2 Exterior WallDish Washer Hood ExhaustP 3 Mechanical Room Domestic Hot Water Armstrong H-32 AB1/6 HP/ 120 V/ 1725 RPMTEF 1 Elementary Toilet ExhaustP 5 Mechanical RoomHot Water Circulation PumpB&G2 AB1/12 HP/ 1725 RPM/ 120 V/78%Boiler BuildingB 1 Boiler Building BoilerKewanee2050 MBHHoonah Schools - Major Equipment InventoryHoonah School 37 FINAL Energy Audit (November 2011)
Unit ID Location FunctionMakeModelCapacity Motor HP / Volts / RPM / Effic NotesHoonah Schools - Major Equipment InventoryB 2 Boiler Building BoilerKewanee2050 MBHFP 1 Boiler Building Fire PumpMarathon YB23YTT30 HP/ 208 V/ 3515 RPM/ 87%P 1A Boiler Building Boiler Circulation Pump B&GER8903AN 268 gpm @58' 10 HP/ 208 V/ 1750 RPM/ 89.5%P 1B Boiler Building Boiler Circulation Pump B&G268 gpm @58' 10 HP/ 208 V/ 1750 RPM/ 89.5%WH 1 Boiler Building Domestic Hot Water PV1500P125ATT0517,000 BTU/HR125 gallon, recovery 40°-120° 500 gallon/hrdirect oil fired hot water heater Gen 1 Boiler Room Emergency Generator KatoA169450011 150 KW 30 60 Hz 208 VGen 2 Boiler Room Emergency Generator KatoA169450011 150 KW 30 60 Hz 208 VP 4 Boiler Building Glycol PumpAC 1 Boiler Building Air CompressorAir Compressor Products1 1/2 HP/ 208 V/ 1725 RPM/ 78.5%P Boiler Building Boiler Heat Exchange Scott15SF5 HP/ 208 V/ 3450 RPM/ 84%AHU 6 Woodshop Air Handling Unit Gaylord MCF-1350A 1000 CFM 1/2 HP/ 220 V/ 1775 RPM/ 62%DC 1 Woodshop Dust CollectorUnited Air SpecialistsDA12.9 Amps/ 115 Vmanual controlEF 2 Woodshop Finish Room Centrimaster PNU120RFE1 1/4 HP/ 120 V/ 1750 RPMEF 1 Woodshop Woodshop Exhaust FanDC 2 Outside Woodshop Dust Collector Sternvent DKRD180083 HP/ 208 V/ 1750 RPM/ 81.4%EF KitchenDishwasher Hood ExhaustEF KitchenRange Hood ExhaustHoonah School 38 FINAL Energy Audit (November 2011)
Unit ID Location FunctionMakeModelCapacity Motor HP / Volts / RPM / Effic NotesHoonah Schools - Major Equipment InventoryAHU PACTraueT-10KitchenGarbage Disposal2 HP/ 208 V/ 3 PH/ 84%KitchenDishwasher6 KW 208 V/ 3 PHKitchenRange4 KW 208 V/ 3 PHKitchenOvens22.1 KW 208 V/ 3 PHKitchenFood Warmer2.8 KW 208 V/ 3 PHKitchenRefrigerator1 HP/ 120 V/ 1 PH/82.5%KitchenGrill21.9 KW 208 V/ 3 PHKitchenMixer1/2 HP/ 120 V/ 1 PH/ 62%KitchenFryer12 KW 208 V/ 3 PHKitchenSteam Kettles14.8 KW 208 V/ 3 PH
Hoonah School 39 FINAL Energy Audit (November 2011)
Appendix D
Abbreviations
AHU Air handling unit
BTU British thermal unit
BTUH BTU per hour
CBJ City and Borough of Juneau
CMU Concrete masonry unit
CO2 Carbon dioxide
CUH Cabinet unit heater
DDC Direct digital controls
DHW Domestic hot water
EAD Exhaust air damper
EEM Energy efficiency measure
EF Exhaust fan
Gyp Bd Gypsum board
HVAC Heating, Ventilating, Air-
conditioning
HW Hot water
HWRP Hot water recirculating pump
KVA Kilovolt-amps
kW Kilowatt
kWh Kilowatt-hour
LED Light emitting diode
MBH 1,000 Btu per hour
MMBH 1,000,000 Btu per hour
OAD Outside air damper
RAD Return air damper
RF Return fan
SIR Savings to investment ratio
SF Supply fan
UV Unit ventilator
VAV Variable air volume
VFD Variable frequency drive
Hoonah School 40 FINAL Energy Audit (November 2011)
City of Hoonah Detail Ledger Page: 1
Period: 09/13 - 08/14 Sep 15, 2014 02:44PM
Report Criteria:
Actual Amounts
Only Accounts With Balances
Summarize Payroll Detail
Print Period Totals
Print Grand Totals
Page and Total by Fund
Include Accounts: None
Include Sources: None
Include Revenues: None
Include Objects: 339,441,442
All Segments Tested for Total Breaks
Reference Account Debit Credit
Date Journal Number Payee or Description Number Amount Amount Balance
GAS, DIESEL, & OIL 08/31/2013 (08/13) Balance 01-40-441 .00
10/07/2013 AP 45 Hoonah Trading Co.56.48
10/30/2013 AP 334 Hoonah Trading Co.44.23
10/31/2013 (10/13) Period Totals and Balance 100.71 *.00 *100.71
02/22/2014 AP 271 Hoonah Trading Co.130.00
02/28/2014 (02/14) Period Totals and Balance 130.00 *.00 *130.00
03/19/2014 AP 153 Hoonah Trading Co.50.00
03/31/2014 JE 17 Harbor use of Admin truck fuel share 90.00-
03/31/2014 (03/14) Period Totals and Balance 50.00 *90.00-*90.00
06/18/2014 AP 231 Bank of America 97.50
06/30/2014 (06/14) Period Totals and Balance 97.50 *.00 *187.50
07/24/2014 AP 47 Hoonah Trading Co.124.75
07/18/2014 AP 157 Bank of America 148.00
07/31/2014 (07/14) Period Totals and Balance 272.75 *.00 *460.25
08/31/2014 (08/14) Period Totals and Balance .00 *.00 *460.25
YTD Encumbrance .00 YTD Actual 460.25 Total 460.25 YTD Budget 250.00 Unexpended (210.25)
HEATING FUEL 08/31/2013 (08/13) Balance 01-40-442 2,756.96
10/30/2013 AP 335 Hoonah Trading Co.327.85
10/31/2013 (10/13) Period Totals and Balance 327.85 *.00 *3,084.81
12/16/2013 AP 41 Hoonah Trading Co.94.22
12/16/2013 AP 49 Hoonah Trading Co.618.38
12/16/2013 AP 89 Hoonah Trading Co.127.14
12/31/2013 (12/13) Period Totals and Balance 839.74 *.00 *3,924.55
01/31/2014 JE 96 Apply Prepaid 805.93
01/31/2014 (01/14) Period Totals and Balance 805.93 *.00 *805.93
02/07/2014 AP 39 Hoonah Trading Co.114.55
02/07/2014 AP 40 Hoonah Trading Co.526.26
02/28/2014 (02/14) Period Totals and Balance 640.81 *.00 *1,446.74
03/13/2014 AP 36 Hoonah Trading Co.83.92
03/13/2014 AP 37 Hoonah Trading Co.601.92
03/19/2014 AP 163 Hoonah Trading Co.382.47
03/19/2014 AP 169 Hoonah Trading Co.66.16
03/31/2014 (03/14) Period Totals and Balance 1,134.47 *.00 *2,581.21
04/23/2014 AP 50 Hoonah Trading Co.392.17
04/30/2014 (04/14) Period Totals and Balance 392.17 *.00 *2,973.38
05/20/2014 AP 18 Hoonah Trading Co.191.17
05/21/2014 AP 34 Hoonah Trading Co.197.20
05/31/2014 (05/14) Period Totals and Balance 388.37 *.00 *3,361.75
05/31/2014 AP 131 Hoonah Trading Co.197.20-
06/27/2014 AP 310 Hoonah Trading Co.122.11
06/30/2014 (06/14) Period Totals and Balance 122.11 *197.20-*3,286.66
08/31/2014 (08/14) Period Totals and Balance .00 *.00 *3,286.66
City of Hoonah Detail Ledger Page: 2
Period: 09/13 - 08/14 Sep 15, 2014 02:44PM
Reference Account Debit Credit
Date Journal Number Payee or Description Number Amount Amount Balance
YTD Encumbrance .00 YTD Actual 3,286.66 Total 3,286.66 YTD Budget 4,000.00 Unexpended 713.34
GAS, DIESEL, & OIL 08/31/2013 (08/13) Balance 01-46-441 15,397.42
10/17/2013 AP 36 Hoonah Trading Co.230.97
10/30/2013 AP 338 Hoonah Trading Co.3,420.00
10/31/2013 (10/13) Period Totals and Balance 3,650.97 *.00 *19,048.39
12/15/2013 AP 90 Hoonah Trading Co.161.54
12/31/2013 JE 109 Corr HT Expense PW 159.99-
12/31/2013 (12/13) Period Totals and Balance 161.54 *159.99-*19,049.94
01/31/2014 JE 94 Apply Prepaid 3,272.00
01/31/2014 (01/14) Period Totals and Balance 3,272.00 *.00 *3,272.00
02/07/2014 AP 11 Hoonah Trading Co.389.89
02/07/2014 AP 14 Hoonah Trading Co.93.85
02/07/2014 AP 49 Hoonah Trading Co.17.97
02/22/2014 AP 258 Hoonah Trading Co.92.34
02/28/2014 (02/14) Period Totals and Balance 594.05 *.00 *3,866.05
03/13/2014 AP 38 Hoonah Trading Co.9.00
03/31/2014 AP 285 Hoonah Trading Co.97.90
03/31/2014 (03/14) Period Totals and Balance 106.90 *.00 *3,972.95
05/21/2014 AP 35 Hoonah Trading Co.3,556.55
05/31/2014 (05/14) Period Totals and Balance 3,556.55 *.00 *7,529.50
05/31/2014 AP 128 Hoonah Trading Co.416.34
06/18/2014 AP 235 Bank of America 343.90
06/30/2014 (06/14) Period Totals and Balance 760.24 *.00 *8,289.74
07/24/2014 AP 49 Hoonah Trading Co.94.82
07/24/2014 AP 64 Hoonah Trading Co.92.13
07/31/2014 (07/14) Period Totals and Balance 186.95 *.00 *8,476.69
08/31/2014 (08/14) Period Totals and Balance .00 *.00 *8,476.69
YTD Encumbrance .00 YTD Actual 8,476.69 Total 8,476.69 YTD Budget 20,000.00 Unexpended 11,523.31
HEATING FUEL 08/31/2013 (08/13) Balance 01-46-442 .00
12/16/2013 AP 31 Hoonah Trading Co.637.50
12/31/2013 (12/13) Period Totals and Balance 637.50 *.00 *637.50
02/07/2014 AP 46 Hoonah Trading Co.3,296.00
02/28/2014 (02/14) Period Totals and Balance 3,296.00 *.00 *3,296.00
08/31/2014 (08/14) Period Totals and Balance .00 *.00 *3,296.00
YTD Encumbrance .00 YTD Actual 3,296.00 Total 3,296.00 YTD Budget 700.00 Unexpended (2,596.00)
GAS, DIESEL, & OIL 08/31/2013 (08/13) Balance 01-47-441 3,191.83
10/07/2013 AP 47 Hoonah Trading Co.80.03
10/07/2013 AP 49 Hoonah Trading Co.95.39
10/07/2013 AP 67 Hoonah Trading Co.93.05
10/07/2013 AP 69 Hoonah Trading Co.78.35
10/07/2013 AP 76 Hoonah Trading Co.94.35
10/07/2013 AP 81 Hoonah Trading Co.79.04
10/07/2013 AP 109 Hoonah Trading Co.119.44
10/07/2013 AP 111 Hoonah Trading Co.82.02
10/07/2013 AP 117 Hoonah Trading Co.86.76
10/07/2013 AP 120 Hoonah Trading Co.97.14
10/17/2013 AP 136 Hoonah Trading Co.76.52
10/30/2013 AP 340 Hoonah Trading Co.591.94
10/31/2013 (10/13) Period Totals and Balance 1,574.03 *.00 *4,765.86
12/16/2013 AP 32 Hoonah Trading Co.93.51
12/16/2013 AP 36 Hoonah Trading Co.88.82
12/16/2013 AP 52 Hoonah Trading Co.91.94
City of Hoonah Detail Ledger Page: 3
Period: 09/13 - 08/14 Sep 15, 2014 02:44PM
Reference Account Debit Credit
Date Journal Number Payee or Description Number Amount Amount Balance
12/16/2013 AP 53 Hoonah Trading Co.74.40
12/16/2013 AP 61 Hoonah Trading Co.91.02
12/16/2013 AP 63 Hoonah Trading Co.81.14
12/16/2013 AP 84 Hoonah Trading Co.97.02
12/29/2013 AP 221 Hoonah Trading Co.79.23
12/29/2013 AP 223 Hoonah Trading Co.93.44
12/31/2013 AP 346 Hoonah Trading Co.88.38
12/31/2013 AP 375 Hill Fuel LLC 97.20
12/31/2013 AP 376 Hill Fuel LLC 244.80
12/31/2013 (12/13) Period Totals and Balance 1,220.90 *.00 *5,986.76
02/07/2014 AP 10 Hoonah Trading Co.64.88
02/07/2014 AP 42 Hoonah Trading Co.94.80
02/07/2014 AP 44 Hoonah Trading Co.77.61
02/07/2014 AP 50 Hoonah Trading Co.96.01
02/22/2014 AP 260 Hoonah Trading Co.80.50
02/22/2014 AP 261 Hoonah Trading Co.109.44
02/22/2014 AP 265 Hoonah Trading Co.80.93
02/22/2014 AP 266 Hoonah Trading Co.89.05
02/28/2014 (02/14) Period Totals and Balance 693.22 *.00 *693.22
03/19/2014 AP 162 Hoonah Trading Co.89.37
03/31/2014 (03/14) Period Totals and Balance 89.37 *.00 *782.59
04/23/2014 AP 23 Hoonah Trading Co.95.54
04/23/2014 AP 24 Hoonah Trading Co.130.33
04/23/2014 AP 25 Hoonah Trading Co.70.04
04/23/2014 AP 40 Hoonah Trading Co.93.50
04/30/2014 (04/14) Period Totals and Balance 389.41 *.00 *1,172.00
05/20/2014 AP 11 Hoonah Trading Co.99.41
05/20/2014 AP 23 Hoonah Trading Co.100.75
05/21/2014 AP 38 Hoonah Trading Co.758.78
05/31/2014 (05/14) Period Totals and Balance 958.94 *.00 *2,130.94
06/09/2014 AP 133 Hoonah Trading Co.73.55
06/18/2014 AP 195 Hoonah Trading Co.96.10
06/27/2014 AP 300 Hoonah Trading Co.33.14
06/27/2014 AP 308 Hoonah Trading Co.94.36
06/27/2014 AP 309 Hoonah Trading Co.77.25
06/30/2014 (06/14) Period Totals and Balance 374.40 *.00 *2,505.34
07/24/2014 AP 71 Hoonah Trading Co.92.34
07/31/2014 (07/14) Period Totals and Balance 92.34 *.00 *2,597.68
08/31/2014 (08/14) Period Totals and Balance .00 *.00 *2,597.68
YTD Encumbrance .00 YTD Actual 2,597.68 Total 2,597.68 YTD Budget 8,605.00 Unexpended 6,007.32
HEAT RECOVERY 08/31/2013 (08/13) Balance 01-52-339 1,897.26
09/05/2013 AP 15 I.P.E.C.183.63
09/30/2013 (09/13) Period Totals and Balance 183.63 *.00 *2,080.89
10/08/2013 AP 6 I.P.E.C.190.74
10/08/2013 AP 24 I.P.E.C.189.41
10/30/2013 AP 359 I.P.E.C.209.35
10/31/2013 (10/13) Period Totals and Balance 589.50 *.00 *2,670.39
12/18/2013 AP 127 I.P.E.C.339.41
12/29/2013 AP 240 I.P.E.C.371.79
12/31/2013 JE 249 Book IPEC Heat Recovery 2013 167.43
12/31/2013 (12/13) Period Totals and Balance 878.63 *.00 *3,549.02
02/06/2014 AP 55 I.P.E.C.167.43
02/28/2014 (02/14) Period Totals and Balance 167.43 *.00 *167.43
03/18/2014 AP 170 I.P.E.C.283.24
03/28/2014 AP 247 I.P.E.C.135.98
03/31/2014 (03/14) Period Totals and Balance 419.22 *.00 *586.65
City of Hoonah Detail Ledger Page: 4
Period: 09/13 - 08/14 Sep 15, 2014 02:44PM
Reference Account Debit Credit
Date Journal Number Payee or Description Number Amount Amount Balance
05/13/2014 AP 52 I.P.E.C.189.45
05/31/2014 (05/14) Period Totals and Balance 189.45 *.00 *776.10
06/05/2014 AP 21 I.P.E.C.182.02
06/24/2014 AP 313 I.P.E.C.152.71
06/30/2014 (06/14) Period Totals and Balance 334.73 *.00 *1,110.83
08/20/2014 AP 52 I.P.E.C.155.18
08/26/2014 AP 80 I.P.E.C.154.59
08/31/2014 (08/14) Period Totals and Balance 309.77 *.00 *1,420.60
YTD Encumbrance .00 YTD Actual 1,420.60 Total 1,420.60 YTD Budget .00 Unexpended (1,420.60)
GAS, DIESEL, & OIL 08/31/2013 (08/13) Balance 01-52-441 5,557.57
10/07/2013 AP 38 Hoonah Trading Co.72.60
10/07/2013 AP 50 Hoonah Trading Co.69.60
10/07/2013 AP 53 Hoonah Trading Co.91.00
10/07/2013 AP 56 Hoonah Trading Co.80.00
10/07/2013 AP 59 Hoonah Trading Co.86.72
10/07/2013 AP 63 Hoonah Trading Co.91.56
10/07/2013 AP 64 Hoonah Trading Co.62.00
10/07/2013 AP 72 Hoonah Trading Co.80.83
10/07/2013 AP 74 Hoonah Trading Co.79.00
10/07/2013 AP 78 Hoonah Trading Co.73.20
10/07/2013 AP 88 Hoonah Trading Co.96.44
10/07/2013 AP 92 Hoonah Trading Co.73.00
10/07/2013 AP 93 Hoonah Trading Co.76.86
10/07/2013 AP 96 Hoonah Trading Co.91.08
10/07/2013 AP 102 Hoonah Trading Co.96.99
10/07/2013 AP 103 Hoonah Trading Co.75.01
10/07/2013 AP 110 Hoonah Trading Co.71.71
10/07/2013 AP 115 Hoonah Trading Co.87.95
10/07/2013 AP 118 Hoonah Trading Co.84.44
10/07/2013 AP 130 Hoonah Trading Co.78.75
10/07/2013 AP 131 Hoonah Trading Co.86.96
10/07/2013 AP 132 Hoonah Trading Co.80.00
10/17/2013 AP 139 Hoonah Trading Co.72.25
10/17/2013 AP 140 Hoonah Trading Co.85.03
10/17/2013 AP 142 Hoonah Trading Co.222.82
10/30/2013 AP 341 Hoonah Trading Co.330.41
10/31/2013 (10/13) Period Totals and Balance 2,496.21 *.00 *8,053.78
12/16/2013 AP 27 Hoonah Trading Co.69.69
12/16/2013 AP 28 Hoonah Trading Co.70.18
12/16/2013 AP 33 Hoonah Trading Co.90.41
12/16/2013 AP 37 Hoonah Trading Co.76.76
12/16/2013 AP 40 Hoonah Trading Co.73.00
12/16/2013 AP 43 Hoonah Trading Co.96.22
12/16/2013 AP 47 Hoonah Trading Co.77.77
12/16/2013 AP 55 Hoonah Trading Co.69.00
12/16/2013 AP 58 Hoonah Trading Co.69.69
12/16/2013 AP 59 Hoonah Trading Co.76.48
12/16/2013 AP 73 Hoonah Trading Co.93.46
12/16/2013 AP 74 Hoonah Trading Co.72.72
12/16/2013 AP 75 Hoonah Trading Co.20.25
12/16/2013 AP 76 Hoonah Trading Co.78.33
12/16/2013 AP 77 Hoonah Trading Co.70.17
12/16/2013 AP 78 Hoonah Trading Co.78.28
12/16/2013 AP 79 Hoonah Trading Co.77.16
12/16/2013 AP 80 Hoonah Trading Co.40.26
City of Hoonah Detail Ledger Page: 5
Period: 09/13 - 08/14 Sep 15, 2014 02:44PM
Reference Account Debit Credit
Date Journal Number Payee or Description Number Amount Amount Balance
12/16/2013 AP 81 Hoonah Trading Co.70.70
12/16/2013 AP 82 Hoonah Trading Co.69.90
12/16/2013 AP 83 Hoonah Trading Co.64.39
12/15/2013 AP 91 Hoonah Trading Co.404.37
12/29/2013 AP 212 Hoonah Trading Co.86.62
12/29/2013 AP 215 Hoonah Trading Co.64.39
12/29/2013 AP 216 Hoonah Trading Co.107.07
12/29/2013 AP 217 Hoonah Trading Co.85.85
12/29/2013 AP 218 Hoonah Trading Co.84.00
12/29/2013 AP 219 Hoonah Trading Co.67.10
12/31/2013 AP 344 Hoonah Trading Co.10.12
12/31/2013 AP 345 Hoonah Trading Co.71.12
12/31/2013 AP 347 Hoonah Trading Co.73.46
12/31/2013 (12/13) Period Totals and Balance 2,558.92 *.00 *10,612.70
02/18/2014 AP 207 Hoonah Trading Co.69.53
02/18/2014 AP 208 Hoonah Trading Co.86.56
02/18/2014 AP 209 Hoonah Trading Co.72.63
02/18/2014 AP 210 Hoonah Trading Co.68.68
02/18/2014 AP 211 Hoonah Trading Co.72.72
02/18/2014 AP 212 Hoonah Trading Co.80.80
02/18/2014 AP 213 Hoonah Trading Co.92.47
02/18/2014 AP 214 Hoonah Trading Co.61.93
02/18/2014 AP 215 Hoonah Trading Co.68.69
02/18/2014 AP 216 Hoonah Trading Co.65.80
02/22/2014 AP 277 Hoonah Trading Co.91.22
02/22/2014 AP 278 Hoonah Trading Co.75.14
02/22/2014 AP 279 Hoonah Trading Co.22.97
02/22/2014 AP 280 Hoonah Trading Co.87.87
02/28/2014 (02/14) Period Totals and Balance 1,017.01 *.00 *1,017.01
03/13/2014 AP 34 Hoonah Trading Co.64.64
03/13/2014 AP 35 Hoonah Trading Co.73.40
03/13/2014 AP 45 Hoonah Trading Co.91.28
03/13/2014 AP 53 Hoonah Trading Co.86.77
03/19/2014 AP 155 Hoonah Trading Co.337.16
03/25/2014 AP 198 Hoonah Trading Co.90.01
03/25/2014 AP 199 Hoonah Trading Co.180.99
03/31/2014 AP 291 Hoonah Trading Co.76.66
03/31/2014 AP 292 Hoonah Trading Co.88.68
03/31/2014 AP 293 Hoonah Trading Co.86.80
03/31/2014 (03/14) Period Totals and Balance 1,176.39 *.00 *2,193.40
04/23/2014 AP 16 Hoonah Trading Co.61.11
04/23/2014 AP 20 Hoonah Trading Co.92.23
04/23/2014 AP 21 Hoonah Trading Co.66.66
04/23/2014 AP 29 Hoonah Trading Co.56.71
04/23/2014 AP 30 Hoonah Trading Co.96.16
04/23/2014 AP 35 Hoonah Trading Co.55.10
04/23/2014 AP 42 Hoonah Trading Co.102.07
04/23/2014 AP 43 Hoonah Trading Co.85.02
04/23/2014 AP 44 Hoonah Trading Co.92.40
04/23/2014 AP 45 Hoonah Trading Co.94.76
04/30/2014 (04/14) Period Totals and Balance 802.22 *.00 *2,995.62
05/20/2014 AP 13 Hoonah Trading Co.94.68
05/20/2014 AP 24 Hoonah Trading Co.70.25
05/21/2014 AP 39 Hoonah Trading Co.265.02
05/31/2014 (05/14) Period Totals and Balance 429.95 *.00 *3,425.57
05/31/2014 AP 121 Hoonah Trading Co.684.55
05/31/2014 AP 126 Hoonah Trading Co.259.20
City of Hoonah Detail Ledger Page: 6
Period: 09/13 - 08/14 Sep 15, 2014 02:44PM
Reference Account Debit Credit
Date Journal Number Payee or Description Number Amount Amount Balance
06/09/2014 AP 143 Hoonah Trading Co.40.00
06/27/2014 AP 290 Hoonah Trading Co.94.50
06/27/2014 AP 291 Hoonah Trading Co.71.82
06/27/2014 AP 292 Hoonah Trading Co.20.12
06/27/2014 AP 293 Hoonah Trading Co.74.50
06/27/2014 AP 294 Hoonah Trading Co.93.83
06/27/2014 AP 295 Hoonah Trading Co.76.44
06/27/2014 AP 296 Hoonah Trading Co.15.21
06/27/2014 AP 297 Hoonah Trading Co.95.35
06/27/2014 AP 298 Hoonah Trading Co.65.78
06/30/2014 (06/14) Period Totals and Balance 1,591.30 *.00 *5,016.87
07/22/2014 AP 28 Hoonah Trading Co.75.43
07/22/2014 AP 31 Hoonah Trading Co.93.00
07/22/2014 AP 34 Hoonah Trading Co.89.60
07/22/2014 AP 35 Hoonah Trading Co.17.82
07/22/2014 AP 36 Hoonah Trading Co.75.62
07/22/2014 AP 37 Hoonah Trading Co.88.40
07/24/2014 AP 48 Hoonah Trading Co.91.45
07/24/2014 AP 50 Hoonah Trading Co.90.55
07/24/2014 AP 51 Hoonah Trading Co.92.61
07/24/2014 AP 52 Hoonah Trading Co.94.58
07/24/2014 AP 53 Hoonah Trading Co.76.26
07/24/2014 AP 54 Hoonah Trading Co.72.50
07/24/2014 AP 55 Hoonah Trading Co.63.13
07/24/2014 AP 56 Hoonah Trading Co.65.78
07/24/2014 AP 57 Hoonah Trading Co.94.07
07/24/2014 AP 58 Hoonah Trading Co.24.97
07/24/2014 AP 59 Hoonah Trading Co.67.80
07/24/2014 AP 60 Hoonah Trading Co.7.09
07/24/2014 AP 61 Hoonah Trading Co.23.55
07/24/2014 AP 72 Hoonah Trading Co.89.02
07/31/2014 (07/14) Period Totals and Balance 1,393.23 *.00 *6,410.10
08/31/2014 (08/14) Period Totals and Balance .00 *.00 *6,410.10
YTD Encumbrance .00 YTD Actual 6,410.10 Total 6,410.10 YTD Budget 9,000.00 Unexpended 2,589.90
HEATING FUEL 08/31/2013 (08/13) Balance 01-52-442 1,198.52
10/30/2013 AP 342 Hoonah Trading Co.380.80
10/31/2013 (10/13) Period Totals and Balance 380.80 *.00 *1,579.32
12/29/2013 AP 227 Hoonah Trading Co.302.95
12/31/2013 (12/13) Period Totals and Balance 302.95 *.00 *1,882.27
01/31/2014 JE 98 Apply Prepaid 293.82
01/31/2014 (01/14) Period Totals and Balance 293.82 *.00 *293.82
02/07/2014 AP 35 Hoonah Trading Co.2.51
02/28/2014 (02/14) Period Totals and Balance 2.51 *.00 *296.33
03/13/2014 AP 41 Hoonah Trading Co.618.22
03/31/2014 AP 295 Hoonah Trading Co.715.28
03/31/2014 (03/14) Period Totals and Balance 1,333.50 *.00 *1,629.83
05/20/2014 AP 14 Hoonah Trading Co.301.31
05/31/2014 (05/14) Period Totals and Balance 301.31 *.00 *1,931.14
08/31/2014 (08/14) Period Totals and Balance .00 *.00 *1,931.14
YTD Encumbrance .00 YTD Actual 1,931.14 Total 1,931.14 YTD Budget 4,240.00 Unexpended 2,308.86
HEATING FUEL 08/31/2013 (08/13) Balance 01-54-339 749.09
09/05/2013 AP 16 I.P.E.C.91.81
09/30/2013 (09/13) Period Totals and Balance 91.81 *.00 *840.90
City of Hoonah Detail Ledger Page: 7
Period: 09/13 - 08/14 Sep 15, 2014 02:44PM
Reference Account Debit Credit
Date Journal Number Payee or Description Number Amount Amount Balance
10/08/2013 AP 7 I.P.E.C.95.37
10/08/2013 AP 25 I.P.E.C.94.70
10/30/2013 AP 360 I.P.E.C.104.67
10/31/2013 (10/13) Period Totals and Balance 294.74 *.00 *1,135.64
12/29/2013 AP 241 I.P.E.C.185.90
12/31/2013 (12/13) Period Totals and Balance 185.90 *.00 *1,321.54
03/18/2014 AP 172 I.P.E.C.141.62
03/28/2014 AP 248 I.P.E.C.67.98
03/31/2014 (03/14) Period Totals and Balance 209.60 *.00 *209.60
05/13/2014 AP 50 I.P.E.C.94.72
05/31/2014 (05/14) Period Totals and Balance 94.72 *.00 *304.32
06/05/2014 AP 22 I.P.E.C.91.01
06/24/2014 AP 311 I.P.E.C.76.35
06/30/2014 (06/14) Period Totals and Balance 167.36 *.00 *471.68
08/20/2014 AP 53 I.P.E.C.77.59
08/26/2014 AP 81 I.P.E.C.77.29
08/31/2014 (08/14) Period Totals and Balance 154.88 *.00 *626.56
YTD Encumbrance .00 YTD Actual 626.56 Total 626.56 YTD Budget .00 Unexpended (626.56)
GAS, DIESEL, & OIL 08/31/2013 (08/13) Balance 01-54-441 197.63
10/07/2013 AP 101 Hoonah Trading Co.52.61
10/31/2013 (10/13) Period Totals and Balance 52.61 *.00 *250.24
12/16/2013 AP 64 Hoonah Trading Co.76.56
12/31/2013 (12/13) Period Totals and Balance 76.56 *.00 *326.80
08/31/2014 (08/14) Period Totals and Balance .00 *.00 *.00
YTD Encumbrance .00 YTD Actual .00 Total .00 YTD Budget 400.00 Unexpended 400.00
HEATING FUEL 08/31/2013 (08/13) Balance 01-54-442 724.95
01/31/2014 JE 100 Apply Prepaid 182.81
01/31/2014 (01/14) Period Totals and Balance 182.81 *.00 *182.81
02/07/2014 AP 34 Hoonah Trading Co.141.70
02/28/2014 (02/14) Period Totals and Balance 141.70 *.00 *324.51
03/13/2014 AP 39 Hoonah Trading Co.465.86
03/31/2014 (03/14) Period Totals and Balance 465.86 *.00 *790.37
05/20/2014 AP 16 Hoonah Trading Co.862.42
05/31/2014 (05/14) Period Totals and Balance 862.42 *.00 *1,652.79
08/31/2014 (08/14) Period Totals and Balance .00 *.00 *1,652.79
YTD Encumbrance .00 YTD Actual 1,652.79 Total 1,652.79 YTD Budget 2,200.00 Unexpended 547.21
HEATING FUEL 08/31/2013 (08/13) Balance 01-56-339 1,148.15
09/05/2013 AP 17 I.P.E.C.91.82
09/30/2013 (09/13) Period Totals and Balance 91.82 *.00 *1,239.97
10/08/2013 AP 8 I.P.E.C.95.38
10/08/2013 AP 26 I.P.E.C.94.70
10/30/2013 AP 361 I.P.E.C.104.68
10/31/2013 (10/13) Period Totals and Balance 294.76 *.00 *1,534.73
12/18/2013 AP 126 I.P.E.C.339.40
12/29/2013 AP 242 I.P.E.C.185.90
12/31/2013 JE 251 Book IPEC Heat Recovery 2013 167.44
12/31/2013 (12/13) Period Totals and Balance 692.74 *.00 *2,227.47
02/06/2014 AP 56 I.P.E.C.167.44
02/28/2014 (02/14) Period Totals and Balance 167.44 *.00 *167.44
03/18/2014 AP 171 I.P.E.C.141.62
03/28/2014 AP 249 I.P.E.C.67.98
03/31/2014 (03/14) Period Totals and Balance 209.60 *.00 *377.04
City of Hoonah Detail Ledger Page: 8
Period: 09/13 - 08/14 Sep 15, 2014 02:44PM
Reference Account Debit Credit
Date Journal Number Payee or Description Number Amount Amount Balance
05/13/2014 AP 51 I.P.E.C.94.72
05/31/2014 (05/14) Period Totals and Balance 94.72 *.00 *471.76
06/05/2014 AP 23 I.P.E.C.91.01
06/24/2014 AP 312 I.P.E.C.76.35
06/30/2014 (06/14) Period Totals and Balance 167.36 *.00 *639.12
08/20/2014 AP 54 I.P.E.C.77.59
08/26/2014 AP 82 I.P.E.C.77.29
08/31/2014 (08/14) Period Totals and Balance 154.88 *.00 *794.00
YTD Encumbrance .00 YTD Actual 794.00 Total 794.00 YTD Budget .00 Unexpended (794.00)
GAS, DIESEL, & OIL 08/31/2013 (08/13) Balance 01-56-441 376.72
12/15/2013 AP 95 Hoonah Trading Co.138.59
12/31/2013 (12/13) Period Totals and Balance 138.59 *.00 *515.31
03/19/2014 AP 154 Hoonah Trading Co.132.40
03/31/2014 (03/14) Period Totals and Balance 132.40 *.00 *132.40
08/31/2014 (08/14) Period Totals and Balance .00 *.00 *132.40
YTD Encumbrance .00 YTD Actual 132.40 Total 132.40 YTD Budget 400.00 Unexpended 267.60
HEATING FUEL 08/31/2013 (08/13) Balance 01-56-442 724.96
01/31/2014 JE 101 Apply Prepaid 182.81
01/31/2014 (01/14) Period Totals and Balance 182.81 *.00 *182.81
02/07/2014 AP 33 Hoonah Trading Co.141.70
02/28/2014 (02/14) Period Totals and Balance 141.70 *.00 *324.51
03/13/2014 AP 40 Hoonah Trading Co.465.86
03/31/2014 (03/14) Period Totals and Balance 465.86 *.00 *790.37
05/20/2014 AP 17 Hoonah Trading Co.862.42
05/31/2014 (05/14) Period Totals and Balance 862.42 *.00 *1,652.79
08/31/2014 (08/14) Period Totals and Balance .00 *.00 *1,652.79
YTD Encumbrance .00 YTD Actual 1,652.79 Total 1,652.79 YTD Budget 2,300.00 Unexpended 647.21
Number of Transactions: 275 Number of Accounts: 14 Debit Credit Proof
Total GENERAL FUND:50,848.27 447.19-50,401.08
City of Hoonah Detail Ledger Page: 9
Period: 09/13 - 08/14 Sep 15, 2014 02:44PM
Reference Account Debit Credit
Date Journal Number Payee or Description Number Amount Amount Balance
GAS, DIESEL, & OIL 08/31/2013 (08/13) Balance 04-40-441 98.76
10/07/2013 AP 48 Hoonah Trading Co.24.20
10/07/2013 AP 73 Hoonah Trading Co.17.68
10/31/2013 (10/13) Period Totals and Balance 41.88 *.00 *140.64
05/31/2014 AP 124 Hoonah Trading Co.22.43
06/30/2014 (06/14) Period Totals and Balance 22.43 *.00 *22.43
07/22/2014 AP 29 Hoonah Trading Co.23.43
07/24/2014 AP 46 Hoonah Trading Co.22.68
07/31/2014 (07/14) Period Totals and Balance 46.11 *.00 *68.54
08/31/2014 (08/14) Period Totals and Balance .00 *.00 *68.54
YTD Encumbrance .00 YTD Actual 68.54 Total 68.54 YTD Budget 100.00 Unexpended 31.46
HEATING FUEL 08/31/2013 (08/13) Balance 04-40-442 7,531.71
10/07/2013 AP 46 Hoonah Trading Co.1,556.77
10/30/2013 AP 345 Hoonah Trading Co.1,911.48
10/31/2013 (10/13) Period Totals and Balance 3,468.25 *.00 *10,999.96
12/16/2013 AP 29 Hoonah Trading Co.920.98
12/29/2013 AP 228 Hoonah Trading Co.1,325.92
12/31/2013 (12/13) Period Totals and Balance 2,246.90 *.00 *13,246.86
02/07/2014 AP 26 Hoonah Trading Co.1,821.02
02/22/2014 AP 274 Hoonah Trading Co.1,291.62
02/28/2014 (02/14) Period Totals and Balance 3,112.64 *.00 *3,112.64
03/19/2014 AP 164 Hoonah Trading Co.1,366.44
03/31/2014 (03/14) Period Totals and Balance 1,366.44 *.00 *4,479.08
04/23/2014 AP 49 Hoonah Trading Co.1,660.05
04/30/2014 (04/14) Period Totals and Balance 1,660.05 *.00 *6,139.13
06/09/2014 AP 137 Hoonah Trading Co.1,703.66
06/30/2014 (06/14) Period Totals and Balance 1,703.66 *.00 *7,842.79
08/31/2014 (08/14) Period Totals and Balance .00 *.00 *7,842.79
YTD Encumbrance .00 YTD Actual 7,842.79 Total 7,842.79 YTD Budget 14,000.00 Unexpended 6,157.21
Number of Transactions: 14 Number of Accounts: 2 Debit Credit Proof
Total YOUTH & PARKS:13,668.36 .00 13,668.36
City of Hoonah Detail Ledger Page: 10
Period: 09/13 - 08/14 Sep 15, 2014 02:44PM
Reference Account Debit Credit
Date Journal Number Payee or Description Number Amount Amount Balance
GAS, DIESEL, & OIL 08/31/2013 (08/13) Balance 18-40-441 .00
12/29/2013 AP 208 Hoonah Trading Co.140.62
12/29/2013 AP 230 Hoonah Trading Co.141.51
12/29/2013 AP 234 Hoonah Trading Co.65.44
12/31/2013 JE 13 Apply to Travel Lift Fund 2,952.26
12/31/2013 (12/13) Period Totals and Balance 3,299.83 *.00 *3,299.83
01/31/2014 JE 120 Apply Prepaid 4,447.97
01/31/2014 (01/14) Period Totals and Balance 4,447.97 *.00 *4,447.97
02/22/2014 AP 276 Hoonah Trading Co.39.00
02/28/2014 (02/14) Period Totals and Balance 39.00 *.00 *4,486.97
03/13/2014 AP 44 Hoonah Trading Co.100.53
03/19/2014 AP 167 Hoonah Trading Co.443.72
03/19/2014 AP 168 Hoonah Trading Co.242.26
03/31/2014 (03/14) Period Totals and Balance 786.51 *.00 *5,273.48
04/23/2014 AP 17 Hoonah Trading Co.95.11
04/30/2014 (04/14) Period Totals and Balance 95.11 *.00 *5,368.59
05/21/2014 AP 40 Hoonah Trading Co.65.30
05/31/2014 (05/14) Period Totals and Balance 65.30 *.00 *5,433.89
05/31/2014 AP 117 Hoonah Trading Co.173.04
05/31/2014 AP 118 Hoonah Trading Co.159.00
06/09/2014 AP 136 Hoonah Trading Co.93.70
06/18/2014 AP 179 Hoonah Trading Co.43.59
06/30/2014 (06/14) Period Totals and Balance 469.33 *.00 *5,903.22
07/24/2014 AP 39 Hoonah Trading Co.343.02
07/24/2014 AP 40 Hoonah Trading Co.23.00
07/31/2014 (07/14) Period Totals and Balance 366.02 *.00 *6,269.24
08/20/2014 AP 63 Hill Fuel LLC 3,384.71
08/31/2014 (08/14) Period Totals and Balance 3,384.71 *.00 *9,653.95
YTD Encumbrance .00 YTD Actual 9,653.95 Total 9,653.95 YTD Budget .00 Unexpended (9,653.95)
Number of Transactions: 18 Number of Accounts: 1 Debit Credit Proof
Total Fund: 18:12,953.78 .00 12,953.78
City of Hoonah Detail Ledger Page: 11
Period: 09/13 - 08/14 Sep 15, 2014 02:44PM
Reference Account Debit Credit
Date Journal Number Payee or Description Number Amount Amount Balance
GAS, DIESEL, & OIL 08/31/2013 (08/13) Balance 19-40-441 2,189.84
09/05/2013 AP 14 Huna Propane 245.38
09/30/2013 (09/13) Period Totals and Balance 245.38 *.00 *2,435.22
10/07/2013 AP 40 Hoonah Trading Co.131.21
10/07/2013 AP 89 Hoonah Trading Co.171.01
10/07/2013 AP 104 Hoonah Trading Co.49.15
10/07/2013 AP 126 Hoonah Trading Co.23.04
10/07/2013 AP 127 Hoonah Trading Co.113.00
10/30/2013 AP 346 Hoonah Trading Co.212.96
10/31/2013 (10/13) Period Totals and Balance 700.37 *.00 *3,135.59
12/16/2013 AP 39 Hoonah Trading Co.187.28
12/16/2013 AP 66 Hoonah Trading Co.25.66
12/16/2013 AP 67 Hoonah Trading Co.190.23
12/16/2013 AP 68 Hoonah Trading Co.36.62
12/16/2013 AP 69 Hoonah Trading Co.65.52
12/16/2013 AP 72 Hoonah Trading Co.123.99
12/29/2013 AP 205 Hoonah Trading Co.26.00
12/29/2013 AP 206 Hoonah Trading Co.26.05
12/29/2013 AP 207 Hoonah Trading Co.140.00
12/29/2013 AP 229 Hoonah Trading Co.123.52
12/31/2013 (12/13) Period Totals and Balance 944.87 *.00 *4,080.46
02/07/2014 AP 9 Hoonah Trading Co.178.00
02/07/2014 AP 24 Hoonah Trading Co.174.00
02/07/2014 AP 25 Hoonah Trading Co.27.00
02/07/2014 AP 48 Hoonah Trading Co.567.95
02/06/2014 AP 189 Hill Fuel LLC 174.44
02/11/2014 AP 190 Hill Fuel LLC 174.44
02/18/2014 AP 205 Hoonah Trading Co.7.49
02/22/2014 AP 275 Hoonah Trading Co.48.00
02/28/2014 (02/14) Period Totals and Balance 1,351.32 *.00 *1,351.32
03/13/2014 AP 43 Hoonah Trading Co.96.82
03/13/2014 AP 46 Hoonah Trading Co.171.01
03/31/2014 AP 280 Hoonah Trading Co.117.48
03/31/2014 AP 286 Hoonah Trading Co.45.00
03/31/2014 AP 287 Hoonah Trading Co.117.00
03/31/2014 AP 296 Hoonah Trading Co.410.76
03/31/2014 JE 16 Harbor use of Admin truck fuel share 90.00
03/31/2014 (03/14) Period Totals and Balance 1,048.07 *.00 *2,399.39
04/23/2014 AP 27 Hoonah Trading Co.50.00
04/23/2014 AP 28 Hoonah Trading Co.170.00
04/23/2014 AP 46 Hoonah Trading Co.172.21
04/30/2014 (04/14) Period Totals and Balance 392.21 *.00 *2,791.60
05/20/2014 AP 22 Hoonah Trading Co.57.72
05/20/2014 AP 26 Hoonah Trading Co.184.01
05/20/2014 AP 27 Hoonah Trading Co.114.00
05/21/2014 AP 42 Hoonah Trading Co.330.19
05/31/2014 (05/14) Period Totals and Balance 685.92 *.00 *3,477.52
05/31/2014 AP 119 Hoonah Trading Co.107.60
05/31/2014 AP 129 Hoonah Trading Co.27.30
06/09/2014 AP 141 Hoonah Trading Co.135.64
06/09/2014 AP 142 Hoonah Trading Co.47.82
06/18/2014 AP 180 Hoonah Trading Co.26.00
06/18/2014 AP 185 Hoonah Trading Co.363.65
06/30/2014 (06/14) Period Totals and Balance 708.01 *.00 *4,185.53
07/11/2014 AP 6 Hill Fuel LLC 87.22
07/22/2014 AP 30 Hoonah Trading Co.19.67-
07/22/2014 AP 38 Hoonah Trading Co.159.00
City of Hoonah Detail Ledger Page: 12
Period: 09/13 - 08/14 Sep 15, 2014 02:44PM
Reference Account Debit Credit
Date Journal Number Payee or Description Number Amount Amount Balance
07/23/2014 AP 74 Huna Propane 416.27
07/31/2014 (07/14) Period Totals and Balance 662.49 *19.67-*4,828.35
08/31/2014 (08/14) Period Totals and Balance .00 *.00 *4,828.35
YTD Encumbrance .00 YTD Actual 4,828.35 Total 4,828.35 YTD Budget .00 Unexpended (4,828.35)
HEATING FUEL 08/31/2013 (08/13) Balance 19-41-442 1,929.49
10/30/2013 AP 347 Hoonah Trading Co.1,195.52
10/31/2013 (10/13) Period Totals and Balance 1,195.52 *.00 *3,125.01
12/16/2013 AP 50 Hoonah Trading Co.586.92
12/29/2013 AP 235 Hoonah Trading Co.373.92
12/31/2013 (12/13) Period Totals and Balance 960.84 *.00 *4,085.85
02/07/2014 AP 36 Hoonah Trading Co.546.33
02/28/2014 (02/14) Period Totals and Balance 546.33 *.00 *546.33
03/13/2014 AP 42 Hoonah Trading Co.514.14
03/31/2014 AP 294 Hoonah Trading Co.444.98
03/31/2014 (03/14) Period Totals and Balance 959.12 *.00 *1,505.45
05/20/2014 AP 15 Hoonah Trading Co.409.60
05/31/2014 (05/14) Period Totals and Balance 409.60 *.00 *1,915.05
08/31/2014 (08/14) Period Totals and Balance .00 *.00 *1,915.05
YTD Encumbrance .00 YTD Actual 1,915.05 Total 1,915.05 YTD Budget .00 Unexpended (1,915.05)
TRAVEL LIFT GAS, DIESEL & OIL 08/31/2013 (08/13) Balance 19-43-441 1,766.33
10/07/2013 AP 39 Hoonah Trading Co.20.00
10/07/2013 AP 42 Hoonah Trading Co.155.55
10/07/2013 AP 71 Hoonah Trading Co.19.93
10/07/2013 AP 80 Hoonah Trading Co.189.12
10/07/2013 AP 87 Hoonah Trading Co.13.00
10/07/2013 AP 100 Hoonah Trading Co.167.43
10/17/2013 AP 141 Hoonah Trading Co.136.85
10/30/2013 AP 349 Hoonah Trading Co.484.05
10/31/2013 (10/13) Period Totals and Balance 1,185.93 *.00 *2,952.26
12/29/2013 AP 209 Hoonah Trading Co.19.99
12/31/2013 JE 14 Apply to Travel Lift Fund 2,952.26-
12/31/2013 (12/13) Period Totals and Balance 19.99 *2,952.26-*19.99
08/31/2014 (08/14) Period Totals and Balance .00 *.00 *.00
YTD Encumbrance .00 YTD Actual .00 Total .00 YTD Budget .00 Unexpended .00
Number of Transactions: 66 Number of Accounts: 3 Debit Credit Proof
Total HARBOR & WAREHOUSE:12,015.97 2,971.93-9,044.04
City of Hoonah Detail Ledger Page: 13
Period: 09/13 - 08/14 Sep 15, 2014 02:44PM
Reference Account Debit Credit
Date Journal Number Payee or Description Number Amount Amount Balance
GAS, DIESEL, & OIL 08/31/2013 (08/13) Balance 20-40-441 1,985.07
10/07/2013 AP 75 Hoonah Trading Co.101.28
10/07/2013 AP 90 Hoonah Trading Co.96.73
10/07/2013 AP 105 Hoonah Trading Co.97.22
10/07/2013 AP 133 Hoonah Trading Co.99.32
10/17/2013 AP 137 Hoonah Trading Co.96.73
10/30/2013 AP 351 Hoonah Trading Co.240.67
10/31/2013 (10/13) Period Totals and Balance 731.95 *.00 *2,717.02
12/16/2013 AP 38 Hoonah Trading Co.105.04
12/16/2013 AP 54 Hoonah Trading Co.94.07
12/16/2013 AP 60 Hoonah Trading Co.39.65
12/15/2013 AP 96 Hoonah Trading Co.95.29
12/29/2013 AP 222 Hoonah Trading Co.98.46
12/29/2013 AP 224 Hoonah Trading Co.57.83
12/29/2013 AP 226 Hoonah Trading Co.98.49
12/31/2013 (12/13) Period Totals and Balance 588.83 *.00 *3,305.85
02/07/2014 AP 18 Hoonah Trading Co.105.53
02/07/2014 AP 41 Hoonah Trading Co.97.40
02/22/2014 AP 259 Hoonah Trading Co.94.55
02/22/2014 AP 262 Hoonah Trading Co.118.90
02/22/2014 AP 267 Hoonah Trading Co.101.39
02/28/2014 (02/14) Period Totals and Balance 517.77 *.00 *517.77
03/13/2014 AP 47 Hoonah Trading Co.64.77
03/19/2014 AP 160 Hoonah Trading Co.60.30
03/31/2014 (03/14) Period Totals and Balance 125.07 *.00 *642.84
04/23/2014 AP 15 Hoonah Trading Co.126.85
04/23/2014 AP 26 Hoonah Trading Co.120.47
04/23/2014 AP 37 Hoonah Trading Co.100.83
04/23/2014 AP 38 Hoonah Trading Co.59.50
04/30/2014 (04/14) Period Totals and Balance 407.65 *.00 *1,050.49
05/20/2014 AP 19 Hoonah Trading Co.105.26
05/31/2014 (05/14) Period Totals and Balance 105.26 *.00 *1,155.75
05/31/2014 AP 130 Hoonah Trading Co.101.42-
06/18/2014 AP 191 Hoonah Trading Co.96.59
06/27/2014 AP 302 Hoonah Trading Co.57.59
06/27/2014 AP 307 Hoonah Trading Co.97.13
06/30/2014 (06/14) Period Totals and Balance 251.31 *101.42-*1,305.64
08/31/2014 (08/14) Period Totals and Balance .00 *.00 *1,305.64
YTD Encumbrance .00 YTD Actual 1,305.64 Total 1,305.64 YTD Budget 3,500.00 Unexpended 2,194.36
HEATING FUEL 08/31/2013 (08/13) Balance 20-40-442 5,776.67
10/30/2013 AP 352 Hoonah Trading Co.1,980.92
10/31/2013 (10/13) Period Totals and Balance 1,980.92 *.00 *7,757.59
12/16/2013 AP 51 Hoonah Trading Co.752.25
12/29/2013 AP 237 Hoonah Trading Co.944.96
12/31/2013 (12/13) Period Totals and Balance 1,697.21 *.00 *9,454.80
02/07/2014 AP 32 Hoonah Trading Co.1,356.83
02/22/2014 AP 272 Hoonah Trading Co.971.01
02/28/2014 (02/14) Period Totals and Balance 2,327.84 *.00 *2,327.84
03/19/2014 AP 166 Hoonah Trading Co.1,171.65
03/31/2014 (03/14) Period Totals and Balance 1,171.65 *.00 *3,499.49
04/23/2014 AP 47 Hoonah Trading Co.1,344.28
04/30/2014 (04/14) Period Totals and Balance 1,344.28 *.00 *4,843.77
08/31/2014 (08/14) Period Totals and Balance .00 *.00 *4,843.77
YTD Encumbrance .00 YTD Actual 4,843.77 Total 4,843.77 YTD Budget 8,000.00 Unexpended 3,156.23
City of Hoonah Detail Ledger Page: 14
Period: 09/13 - 08/14 Sep 15, 2014 02:44PM
Reference Account Debit Credit
Date Journal Number Payee or Description Number Amount Amount Balance
Number of Transactions: 36 Number of Accounts: 2 Debit Credit Proof
Total WATER FUND:11,249.74 101.42-11,148.32
City of Hoonah Detail Ledger Page: 15
Period: 09/13 - 08/14 Sep 15, 2014 02:44PM
Reference Account Debit Credit
Date Journal Number Payee or Description Number Amount Amount Balance
GAS, DIESEL, & OIL 08/31/2013 (08/13) Balance 21-40-441 3,386.66
10/07/2013 AP 37 Hoonah Trading Co.107.75
10/07/2013 AP 66 Hoonah Trading Co.70.74
10/07/2013 AP 68 Hoonah Trading Co.108.85
10/07/2013 AP 70 Hoonah Trading Co.73.02
10/07/2013 AP 77 Hoonah Trading Co.75.78
10/07/2013 AP 91 Hoonah Trading Co.72.00
10/07/2013 AP 97 Hoonah Trading Co.72.26
10/07/2013 AP 113 Hoonah Trading Co.87.98
10/07/2013 AP 114 Hoonah Trading Co.70.58
10/17/2013 AP 138 Hoonah Trading Co.72.27
10/30/2013 AP 354 Hoonah Trading Co.240.81
10/31/2013 (10/13) Period Totals and Balance 1,052.04 *.00 *4,438.70
12/16/2013 AP 34 Hoonah Trading Co.75.43
12/16/2013 AP 35 Hoonah Trading Co.128.81
12/16/2013 AP 44 Hoonah Trading Co.62.90
12/15/2013 AP 97 Hoonah Trading Co.63.70
12/29/2013 AP 225 Hoonah Trading Co.94.99
12/31/2013 AP 342 Hoonah Trading Co.74.38
12/31/2013 AP 348 Hoonah Trading Co.108.52
12/31/2013 JE 108 Corr HT Expense PW 159.99
12/31/2013 (12/13) Period Totals and Balance 768.72 *.00 *5,207.42
02/07/2014 AP 51 Hoonah Trading Co.65.07
02/07/2014 AP 52 Hoonah Trading Co.84.90
02/22/2014 AP 263 Hoonah Trading Co.97.11
02/22/2014 AP 268 Hoonah Trading Co.80.82
02/28/2014 (02/14) Period Totals and Balance 327.90 *.00 *327.90
03/13/2014 AP 49 Hoonah Trading Co.115.50
03/13/2014 AP 52 Hoonah Trading Co.78.80
03/19/2014 AP 161 Hoonah Trading Co.104.22
03/31/2014 AP 283 Hoonah Trading Co.101.04
03/31/2014 (03/14) Period Totals and Balance 399.56 *.00 *727.46
04/23/2014 AP 19 Hoonah Trading Co.74.17
04/23/2014 AP 31 Hoonah Trading Co.94.78
04/23/2014 AP 32 Hoonah Trading Co.74.18
04/23/2014 AP 33 Hoonah Trading Co.135.96
04/23/2014 AP 39 Hoonah Trading Co.109.20
04/23/2014 AP 41 Hoonah Trading Co.64.02
04/30/2014 (04/14) Period Totals and Balance 552.31 *.00 *1,279.77
05/20/2014 AP 12 Hoonah Trading Co.60.50
05/20/2014 AP 21 Hoonah Trading Co.123.15
05/20/2014 AP 32 Hoonah Trading Co.79.92
05/21/2014 AP 46 Hoonah Trading Co.397.60
05/31/2014 (05/14) Period Totals and Balance 661.17 *.00 *1,940.94
05/31/2014 AP 125 Hoonah Trading Co.212.38
06/09/2014 AP 134 Hoonah Trading Co.73.62
06/09/2014 AP 135 Hoonah Trading Co.70.78
06/18/2014 AP 192 Hoonah Trading Co.73.62
06/18/2014 AP 193 Hoonah Trading Co.128.98
06/18/2014 AP 194 Hoonah Trading Co.75.68
06/27/2014 AP 303 Hoonah Trading Co.73.63
06/27/2014 AP 304 Hoonah Trading Co.73.63
06/27/2014 AP 305 Hoonah Trading Co.128.73
06/27/2014 AP 306 Hoonah Trading Co.67.49
06/30/2014 (06/14) Period Totals and Balance 978.54 *.00 *2,919.48
07/24/2014 AP 42 Hoonah Trading Co.73.87
07/24/2014 AP 43 Hoonah Trading Co.80.57
City of Hoonah Detail Ledger Page: 16
Period: 09/13 - 08/14 Sep 15, 2014 02:44PM
Reference Account Debit Credit
Date Journal Number Payee or Description Number Amount Amount Balance
07/24/2014 AP 44 Hoonah Trading Co.105.77
07/24/2014 AP 45 Hoonah Trading Co.68.74
07/24/2014 AP 65 Hoonah Trading Co.110.61
07/24/2014 AP 70 Hoonah Trading Co.66.09
07/31/2014 (07/14) Period Totals and Balance 505.65 *.00 *3,425.13
08/31/2014 (08/14) Period Totals and Balance .00 *.00 *3,425.13
YTD Encumbrance .00 YTD Actual 3,425.13 Total 3,425.13 YTD Budget 5,900.00 Unexpended 2,474.87
HEATING FUEL 08/31/2013 (08/13) Balance 21-40-442 1,731.48
10/30/2013 AP 355 Hoonah Trading Co.142.23
10/31/2013 (10/13) Period Totals and Balance 142.23 *.00 *1,873.71
12/29/2013 AP 231 Hoonah Trading Co.422.06
12/31/2013 (12/13) Period Totals and Balance 422.06 *.00 *2,295.77
02/07/2014 AP 31 Hoonah Trading Co.469.00
02/22/2014 AP 273 Hoonah Trading Co.344.43
02/28/2014 (02/14) Period Totals and Balance 813.43 *.00 *813.43
03/19/2014 AP 165 Hoonah Trading Co.402.95
03/31/2014 (03/14) Period Totals and Balance 402.95 *.00 *1,216.38
04/23/2014 AP 48 Hoonah Trading Co.399.08
04/30/2014 (04/14) Period Totals and Balance 399.08 *.00 *1,615.46
08/31/2014 (08/14) Period Totals and Balance .00 *.00 *1,615.46
YTD Encumbrance .00 YTD Actual 1,615.46 Total 1,615.46 YTD Budget 3,000.00 Unexpended 1,384.54
Number of Transactions: 59 Number of Accounts: 2 Debit Credit Proof
Total SEWER FUND:7,425.64 .00 7,425.64
City of Hoonah Detail Ledger Page: 17
Period: 09/13 - 08/14 Sep 15, 2014 02:44PM
Reference Account Debit Credit
Date Journal Number Payee or Description Number Amount Amount Balance
GAS, DIESEL, & OIL 08/31/2013 (08/13) Balance 23-40-441 983.56
10/07/2013 AP 65 Hoonah Trading Co.66.28
10/07/2013 AP 98 Hoonah Trading Co.116.22
10/07/2013 AP 106 Hoonah Trading Co.88.00
10/07/2013 AP 116 Hoonah Trading Co.104.08
10/07/2013 AP 129 Hoonah Trading Co.144.15
10/30/2013 AP 357 Hoonah Trading Co.94.84
10/31/2013 (10/13) Period Totals and Balance 613.57 *.00 *1,597.13
12/16/2013 AP 30 Hoonah Trading Co.117.55
12/16/2013 AP 57 Hoonah Trading Co.52.61
12/16/2013 AP 65 Hoonah Trading Co.59.39
12/29/2013 AP 220 Hoonah Trading Co.122.71
12/31/2013 (12/13) Period Totals and Balance 352.26 *.00 *1,949.39
02/07/2014 AP 12 Hoonah Trading Co.60.43
02/07/2014 AP 43 Hoonah Trading Co.110.48
02/22/2014 AP 264 Hoonah Trading Co.59.25
02/22/2014 AP 281 Hoonah Trading Co.116.32
02/28/2014 (02/14) Period Totals and Balance 346.48 *.00 *346.48
03/13/2014 AP 51 Hoonah Trading Co.82.15
03/31/2014 AP 284 Hoonah Trading Co.71.15
03/31/2014 (03/14) Period Totals and Balance 153.30 *.00 *499.78
04/23/2014 AP 36 Hoonah Trading Co.105.05
04/30/2014 (04/14) Period Totals and Balance 105.05 *.00 *604.83
05/20/2014 AP 20 Hoonah Trading Co.82.26
05/21/2014 AP 48 Hoonah Trading Co.67.01
05/31/2014 (05/14) Period Totals and Balance 149.27 *.00 *754.10
06/27/2014 AP 301 Hoonah Trading Co.106.81
06/30/2014 (06/14) Period Totals and Balance 106.81 *.00 *860.91
07/24/2014 AP 41 Hoonah Trading Co.74.42
07/31/2014 (07/14) Period Totals and Balance 74.42 *.00 *935.33
08/31/2014 (08/14) Period Totals and Balance .00 *.00 *935.33
YTD Encumbrance .00 YTD Actual 935.33 Total 935.33 YTD Budget .00 Unexpended (935.33)
Number of Transactions: 21 Number of Accounts: 1 Debit Credit Proof
Total GARBAGE:1,901.16 .00 1,901.16
Number of Transactions: 489 Number of Accounts: 25 Debit Credit Proof
Grand Totals: 110,062.92 3,520.54-106,542.38