HomeMy WebLinkAboutKlawock Alaska Energy Application Round IVRenewable Energy Fund Round IX
Grant Application-Heat Projects
Application Forms and Instructions
-'j A' AQJfA p I~ ENERGY AUTHORITY
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: http://www_akenergyauthority.org/Programs/Renewable-Energy-
fund/Rounds#round9.
• 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 (e.g. final design, construction) for the same project may be submitted as
one application.
• If you are applying for grant funding for more than one phase 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
1 07.605(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. Supporting
documentation may include, but is not limited to, reports, conceptual or final designs,
models, photos, maps, proof of site control, utility agreements, power sale agreements,
relevant data sets, and other materials. Please provide a list of supporting documents in
Section 11 of this application and attach the documents to your application.
• 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. Please
provide a list of additional information; including any web links, in section 12 of this
application and attach the documents to your application. For guidance on application best
practices please refer to the resource specific Best Practices Checklists; links to the
checklists can be found in the appendices list at the end of the accompanying REF Round
IX RFA.
• In the sections below, please enter responses in the spaces provided. 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.
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Renewable Energy Fund Round IX
Grant Application -Heat Projects
-AI A,'i!Z'Lt j -;ENERGY AUTHORITY
• 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.
AEA 15003
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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Renewable Energy Fund Round IX
Grant Application-Heat Projects
··~A' a.sw ·a I~ ENERGY AUTHORITY
Tax 10 #
Tax Status: 0 For-profit D Non-profit X Government (check one)
Date of last financial statement audit: 11/3/14
Mailin Address:
PO Box 9
Klawock, AK 99925 Klawock, AK 99925
Mailing Address:
PO Box 9
Klawock, AK 99925
1.1.1 APPLICANT SIGNATORY AUTHORITY CONTACT INFORMATION
I Name: Jim Holien Title: Superintendent
Mailing Address:
PO Box 9
Klawock, AK 99925
Telephone: Fax: Email:
907-755-2917 907-755-2320 Jim.holien@klawockschool.com
111 2 APPLICANT ALTERNATE POINTS OF CONTACT
Name Telephone: Fax: Email:
Yodean Armour 907-755-2220 907-755-Y odean.armour@klawockschool.com
2329
1.2 APPLICANT MINIMUM REQUIREMENTS . · ..
Please che¢k as appropriate. If you d.o not to meet the minimum applicant requirern~nts, .your
application will be rejected. .• . . ·.• "-• ·. · >· ... • ·
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Renewable Energy Fund Round IX
Grant Application-Heat Projects
11.2.1 As an Applicant, we are: (put an X in the appropriate box)
D An electric utility holding a certificate of public convenience and necessity under AS 42.05, or
D An independent power producer in accordance with 3 AAC 107.695 (a) (1), or
D A local government, or
X A governmental entity (which includes tribal councils and housing authorities)
1.2 APPLICANT MINIMUM REQUIREMENTS (continued)
Please check as appropriate.
X 1.2.2 Attached to this application is formal approval and endorsement for the project by the
applicant's board of directors, executive management, 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)
X 1.2.3 As an applicant, we have administrative and financial management 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)
X 1.2.4 If awarded the grant, we can comply with all terms and conditions of the award as
identified in the Standard Grant Agreement template at
htt[!://www.akenergl(authority.org/Programs/Renewable-Energy-Fund/Rounds#round9. (Any
exceptions should be clearly noted and submitted with the application.) (Indicate by
checking the box)
X 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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Renewable Energy Fund Round IX
Grant Application -Heat Projects
Klawock School Biomass Fuel Boiler Project
2.2 Project Location -
1-'. AI AB'"t. ~ 7 · il'i
-=>ENERGY AUTHORITY
Include the physical location ofyour project and name(s) of the community or communities that will
benefit from in the subsections below.
2.2.1 Location of Project -Latitude and longitude {preferred), street address, or
community name.
Latitude and longitude coordinates may be obtained 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 Goog/e 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.
55-33-11.92 N
133-05-57.27 w
715 Bayview Blvd
Klawock, AK 99925
2.2.2 Community benefiting -Name(s) of the community or communities that will be the
beneficiaries of the
Klawock is the primary city and would be the location of the project. However, it would be good for
the island as a whole. Additionally, we have students from many of cities on POW that attend
Klawock School and those students would be benefitted as well.
2.3 PROJECT TYPE
Put X in boxes as appropriate
I 2.3.1 Renewable Resource Type
I D Wind to Heat X Biomass or Biofuels
I D Hydro to Heat 0 Solar Thermal
D Heat Recovery from Existing Sources 0 Heat Pumps
D Other (Describe)
I 2.3.2 Proposed Grant Funded Phase(s) for this Request (Check all that apply)
Pre-Construction Construction
0 Reconnaissance X Final Design and Permitting
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Grant Application -Heat Projects
·-J:J.I~"A I .. Lmd\J~ stt
~ENERGY AUTHORITY
Feasibility and Conceptual Design X Construction and Commissioning
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Grant Application -Heat Projects
: .J A I A@Bit' ., I-=: ENERGY AUTHORITY
2.4 PROJECT DESCRIPTION
Provide a brief one paragraph description of the proposed heat project.
This project will install a wood fired (proposed dried chips) boiler to heat the two main school
buildings. This wood boiler will connect to the existing system and drastically reduce diesel fuel
consumption. The gymnasium boiler will be decommissioned and the existing main building
boilers will be used only during peak heating needs and I or as a backup system.
2.5 Scope of Work . . .· ·•· ·. •.·· ••· ···•···.
Provide a scope of work detailing the tasks to be performed underthisfunding request. This
should include work paid for by grant funds and matching funds or performed as in-kind match.
This request is for design, engineering, contractor, equipment, construction, and inspection of
project. The pre-feasibility study is complete and Klawock Schools will contribute $10,000.
I SECTIOt·f3L Project Managernellt, Development and Operation . •
3.1 Schedule and Milestones
Criteria: Stage 2-1.A: The proposedsc/Jedu/e is clear, realistic, and described in adequate detail.
Please fill out the schedule below (or attach a similar sheet) for the work covered by this funding
request Be sure to identify key tasks and decision points in 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 Add additional rows as needed.
Start End
Milestones Tasks Date Date Deliverables
Engineering Bid Advertise and approval 1/1/16 1131/16
Equipment Bid Advertise and approval 3/1/16 3/15/16
Construction Bid Advertise and approval 3/15/16 4/1/16
Construction Complete project as planned 5/30/16 8/26/16
Inspection Verify compliance 8/29/16 9/2/16
Startup All involved in this process 9/5/16 9/6/16
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Renewable Energy Fund Round IX
Grant Application-Heat Projects
3.2 Budget
, , A' A-S% ·> I~ ENERGY AUTHORITY
Criteria: Stage 2-1.8: The cost estimates for project development, operation, maintenance, fuel,
and other project items meet industry standards or are otherwise justified.
3.2.1 Budget Overview
Describe your financial commitment to the project. List the amount of funds needed for project
completion and the anticipated nature and sources of funds. Consider all project phases, including
future phases not covered in this funding request.
The overall proposed budget for this system is approximately $856,000. The pre-feasibility study is
already completed ($15,000). $250,000 has been requested in CAPSIS for this year. The
remaining funding is yet to be determined and that leads to this request to Renewable Energy
Fund.
3.2.2 Budget Forms
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, Ill. Final
Design and Permitting, and IV. Construction). Please use the tables provided below to detail your
proposed project's total budget. Be sure to use one table for each phase of your project. The
milestones and tasks should match those listed in 3.1 above.
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 Ca/fa, at scalfa@aidea.org.
$ $
$111,986 $111,986
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Renewable Energy Fund Round IX
Grant Application-Heat Projects
J Other I~ I~
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I . ··~AI WBiAvt
~ENERGY AUTHORITY
I ~111.986
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Renewable Energy Fund Round IX
Grant Application -Heat Projects
Equipment Bid
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(
TOTALS
Direct Labor &
Travel & Per Diem
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TOTALS
AEA 15003
$422,000
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>67,870
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Page 10 of28
···~ A I A.Sii'A I ~ . w )
_., ENERGY AUTHORITY
$422,000
$
$256,700
$
$
$67,870
$
$
$
7/8/15
Renewable Energy Fund Round IX
Grant Application -Heat Projects 1-=.' A I A,SJZrA -=:; %1??t
-;ENERGY AUTHORITY
( _ist , base_d on ph~se
2.3 thru ~~r~~J~:~FA) sections $ $ $
TOTALS
Direct Labor &
Travel & PeiOieiil
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r i
Other
TOTALS
AEA 15003
$
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Renewable Energy Fund Round IX
Grant Application-Heat Projects
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Renewable Energy Fund Round IX
Grant Application-Heat Projects
3.2.3 Cost Justification
1... ·.,AI A~§i)JZ:A
0
~ENERGY AUTHORITY
Indicate the source(s) of the cost estimates used for the project budget
A pre-feasibility study was performed by WES Energy & Environment in August of 2014.
3.2.4 Funding Sources
Indicate the funding sources for the phase(s) of the project applied for in this funding request
Grant funds requested in this application $833,556
Cash match to be provided $10,000
In-kind match to be provided $15 000
Total costs for project phase(s) covered in application (sum of above) $858,556
For heat projects using building efficiency completed within the last 5 years as in-kind match, the
applicant must provide documentation of the nature and cost of efficiency work completed.
Applicants should provide as much documentation as possible including:
1. Energy efficiency pre and post audit reports,
2. Invoices for work completed,
3. Photos of the building and work performed, and/or
4. Any other available verification such as scopes of work, technical drawings, and payroll for
k I t d . t II wor comp1e e 1n ernaiiV.
3.2.5 Total Project Costs
Indicate the anticipated total cost by phase of the project (including all funding sources). Use
actual costs for completed phases.
Reconnaissance $
Feasibility and Conceptual Design $
Final Design and Permitting $111,986
Construction $746,570
Total Project Costs_tsum of above) $858,556
3.2.6 Operating and Maintenance Costs (non-fuel) $7430
Estimate annual non-fuel O&M costs associated with the proposed system
3.2.7 Fuel Costs
Estimate annual cost for all applicable fuel(s) needed to run the proposed system
Fuel type Annual cost ($)
Oil $7380 (reduction of 90% oil usage)
Wood Biomass $22,560
$
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Renewable Energy Fund Round IX
Grant Application -Heat Projects
' }) AI ASflj;A 3 I-=> ENERGY AUTHORITY
3.3 Project Communications
Criteria:. Stage 2-1. C: The applicant's communications plan, inclucling monitoring ancl reporting, is
.. · clescribed in aclequate cletail. .· ·•· · .• ·.
Describe how you plan to monitor the project and keep the Authority informed of the status
We will monitor this project with existing staff. We have qualified administration to oversee the
project. The Superintendent will be responsible for keeping the Authority informed. The
Superintendent will work closely with Klawock's Head of Maintenance and Business Manager to
assure compliance and scope of work is accurate. Monthly reports will be formed (with input from
the Authority) and generated by the Business Manager and those reports will be shared with the
Authority.
3.4 Operational Logistics .·} .•
Criteria: Stage 2-1.0: Logistical, business, and financial arrangements for operating and
maintaining the project throughout its lifetime and selling energy from the completed project. are
reasonable and described in adequate detail. . . •.
Describe the anticipated logistical, business, and financial arrangements for operating and
maintaining theproject througl)out its lifetime and selling energy from the completed project.
The primary use of this system is for our internal use in the district. Preliminary discussions have
occurred with ANB/ANS and I'm confident a mutual agreement would be made rather easily. The
model we anticipate using for our project will be similar to the one currently being used
successfully by City of Craig and Craig Schools. They use the same wood supplier we plan to use
and many of the logistics and start-up issues have already been addressed as Craig has refined
their process.
j:SECTION 4 "-QJ,.!ALIFICATIONS AND EXPERIENCE
4.1 Project Team
Criteria: Stage 2-2.A: The Applicant, partners, and/or contractors have sufficient knowledge and
experience to successfully complete and operate .the project. If the applicant has not yet chosen a
· contractor to complete the work, qualifications and experience points will be based on the .•
applicant's capacity to successfully select contractors and manage complex contracts.
Criteria: Stage 2c2.8: The project team has staffing, time, and other resources to successfully
complete .and operate the project. . . . . .· . .·
Criteria: Stage 2"2.C: The project team is able to understand and address technical, economic, and
environmental barriers to successful project completion and operation.
Criteria: Stage 2-2.0: The project team has positive past grant experience.
4.1.1 Project Manager
Indicate who will be managing the project for the Grantee and include contact information, and a
resume. 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 solicit project management support. If the applicant
expects project management assistance from AEA or another government entity, state that in this
section.
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Renewable Energy Fund Round IX
Grant Application-Heat Projects
The Project Manager would be Superintendent Jim Holien. Although he has no direct formal
experience, he has experience with two major renovation jobs at the school while he was the
Principal. If funded, Klawock Schools would look to contract with SERRC and their Construction
Management Services. Assistance from AEA would still be welcomed.
14.1.2 Expertise and Resources
Describe the project team including the applicant, partners, and contractors. Provide sufficient
detail for reviewers to evaluate:
the extent to which the team has sufficient knowledge and experience to successfully
complete and operate the project;
whether the project team has staffing, time, and other resources to successfully complete
and operate the project;
how well the project team is able to understand and address technical, economic, and
environmental barriers to successful project completion and operation.
If contractors have not been selected to complete the work, provide reviewers with sufficient detail
to understand the applicant's capacity to successfully select contractors and manage complex
contracts. Include brief resumes for known key personnel and contractors as an attachment to
your application. In the electronic submittal, please submit resumes as separate PDFs if the
applicant would like those excluded from the web posting of this application
The pre-feasibility survey was completed by WES Energy & Environment. They would be a
valuable resource in this matter. SERRC (Don Hiley) would be a knowledgeable resource. AEA
(Karen Peterson) would be another valuable resource in this matter. Maintenance Supervisor, Ken
Armour, and Business Manager, Yodean Armour have been part of grant projects in the past and
have knowledge of such projects. A priority will be given to engineering firms and construction
companies that have experience in biomass fuel boiler systems.
I 4.1.3 Project Accountant(s)
Indicate who will be performing the accounting of this project for the grantee and include a resume.
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 financial accounting support.
Klawock Schools Business Manager Yodean Armour would be the primary accountant in this
project. These duties fit her day-to-day duties at the district.
I 4.1.4 Financial Accounting System
Describe 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 ensure
that no expenses for overhead, or any other unallowable costs will be requested for reimbursement
from the Renewable Energy Fund Grant Program.
The Grants Manager, Jim Holien, would approve all expenses to this grant. We manage many
grants at the district on a daily basis and have lots of experience. Klawock Schools has not had a
single finding during program audits since 2006.
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Renewable Energy Fund Round IX
Grant Application -Heat Projects
' ) AI Aa'hA i? j ~ENERGY AUTHORrTY
4.2 Local Workforce
Criteria: Stage 2-2.E: The project uses local labor and trains a local labor workforce.
Describe how the project will use local labor or train a ldCallabor Workforce, .·
Local hire will be a criteria for contractor selection and Klawock School feels this is an important
factor in selecting a contractor.
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Renewable Energy Fund Round IX
Grant Application-Heat Projects
l·sect(ON· 5 '-' TECHNICALFEASIBILITY·c.c>•· ,<>.;
5.1 Resource Availability . ·.·
·.··. 'c AI A@ffiA 7 f ~ENERGY AUTHORITY
.. ···· ..
••••••••
> .
Criteria: Stage 2-3.A: The renewable energy resource is available on a sustainable basis, and
project permits and other authorizations can reasonably be obtained.
5.1.1 Proposed Energy Resource
Describe the potential extent/amount of the energy resource that is available, including average
resource availability on an annual basis. Describe the pros and cons of your proposed energy
resource vs. other alternatives that may be available for 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.
Viking Lumber is located about a half mile from the proposed Klawock School location of the
biomass fuel boiler. Viking has adequate resources to provide our school with biomass fuels into
the foreseeable future. The anticipated biomass fuel type would be dried sawdust or wood chips.
Pellets are not produced locally and would incur shipping costs.
5.1.2 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
• Identify and describe potential barriers
We would need a permit from the fire marshal. We will consult with engineers and assure the
system we install will be compliant. We have local support and City of Klawock support so
obtaining any other permits (if needed) would be supported locally.
5.2 Project Site . . ••.. · . . ·
•••• Criteria: Stage 2-3.8: A site is available and suitable for the proposed energy system.
Describe the availability of the site and its suitability for the proposed energy system. Identify
potentia/land ownership issues, including whether site owners have agreed to the project or how
you intend to approach land owmership and access issues.
The location of the boiler would be on existing property and in existing buildings. It is anticipated to
be installed in our current boiler room with biomass fuel brought to it via an auger system.
5.3. Project Risk
Criteria: Stage 2-3. C: Project technical and environmental risks are reasonable.
5.3.1 Technical Risk
Describe potential technical risks and how you would address them.
There is little known environmental risk. Most of system would be in existing buildings and the only
changes to the environment would be to build an area in which to park the trailers used to transport
the biomass fuel.
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Renewable Energy Fund Round IX
Grant Application -Heat Projects 1--~. AI A£JZ>A ~) AiSC'h
~ENERGY AUTHORITY
Technical Risks: Engineering a system that will effectively and automatically transport biomass
fuel to the boiler in the boiler room. Additionally, connecting the main school building to the
gymnasium.
5.3.2 Environmental Risk
Explain 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 describe other potential barriers
No environmental concerns known. The only planned alteration would be a parking area for the
trailer.
5.4 Existing and Proposed Energy System
Cn1eria: Stage 2-3.0: The proposed energy system can reliably produce and deliver energy as
planned. . · .. ..· ·• • • . _., .. ·. · .·. . . • •.
5.4.1 Basic Configuration of Existing Energy System
Describe the basic configuration of the existing energy system. Include information about the
number, size, age, efficiency, and type of generation.
Klawock School has two oil fired boilers in the main school building. They were new in 2001. One
oil fired boiler in the gym. It was new in 1999.
a) Basic configuration (if system is part of the Railbelt1 grid, leave this section blank)
i.
Number of generators/boilers/other 4
ii. Rated capacity of generators/boilers/other 943,000 each (main) and 704,000 each (gym)
iii. Generator/boilers/other type Weil Mclain model 88
iv. Age of generators/boilers/other main new in 2001, gym new in 1999
v. Efficiency of generators/boilers/other
vi. is there heat recovery and is it operational?
b) Annual O&M cost
i. Annual O&M cost for labor
ii. Annual O&M cost for non-labor
c) Annual electricity production and fuel usage (fill in as applicable)
i. Electricity [kWh]
ii. Fuel usage
Diesel [gal]
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Renewable Energy Fund Round IX
Grant Application-Heat Projects
Other
iii. Peak Load
iv. Average Load
v. Minimum Load
vi. Efficiency
vii. Future trends
d) Annual heating fuel usage (fill in as applicable)
i. Diesel [gal or MMBtu] 18,000 gal
ii. Electricity [kWh]
iii. Propane [gal or MMBtu]
iv. Coal [tons or MMBtu]
v. Wood [cords, green tons, dry tons]
vi. Other
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Renewable Energy Fund Round IX
Grant Application-Heat Projects
·· .. ··.·.AI W@ 2 I~ ENERGY AUTHORITY
5.4.2 Future Trends
Describe the anticipated energy demand in the community over the life of the project.
I do not anticipate increased energy demands at this time. However, fuel prices are inconsistent
which makes budgeting difficult. Biomass supplies are strong and would be much more consistent
making budgeting much easier on the district.
5.4.3 Impact on Rates
Briefly explain what if any effect your project will have on electrical rates in the proposed benefit
area over the life of the project. For PCE eligible communities, please describe the expected
impact would be for both pre and post PCE.
I No impact expected.
5.4.4 Proposed 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
• Integration plan
• Delivery methods
Option 2A (in prefeasibility survey) consists of a 500,000 BTU unit with a 1000 gallon thermal
storage tank that is connected to both the main building and gymnasium. This unit will cover all
heating requirements of both buildings 91% of the time. The peak times would be supplemented
with existing boilers in the main building. The gymnasium boilers would be decommissioned.
Currently the two buildings are not connected so thermal piping would have to connect the
buildings (and the ANBIANS hall if connected). Both buildings currently have water systems so
integration will be simply connecting them. Delivery methods: Thermal pipe to deliver heated
water. Fuel (wood) would be delivered via truck and automated auger system would deliver fuel to
the boiler.
Proposed System Design Capacity and Fuel Usage
(Include any projections for continued use of non-renewable fuels)
a) Proposed renewable capacity (Wind, 500,000 btus
Hydro, Biomass, other)
[kW or MMBtulhr]
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]
AEA 15003 Page 20 of28 718/15
Renewable Energy Fund Round IX
Grant Application-Heat Projects
ii. Coal [tons or MMBtu]
··· .,, AI A·SJZ;A 3 I~ ENERGY AUTHORITY
iii. Wood or pellets [cords, green tons,
dry tons]
Proposed $22,500 annually
iv. Other
5.4.5 Metering Equipment
Please provide a short narrative, and cost estimate, identifying the metering equipment that will be
used to comply with the operations reporting requirement identified in Section 3.15 of the Request
for Applications.
We have a reporting system already in place. We record and monitor our fuel and heating costs
and can compare years to see actual savings. Additionally, we have an existing maintenance plan
that would include this system. It would be anticipated that the proposed system will have a
metering measure built into the system. We contract SERRC services to help maintain our
computer program and keep our maintenance records up to date.
AEA 15003 Page 21 of28 7/8/15
Renewable Energy Fund Round IX
Grant Application-Heat Projects
f SECTION 6-ECONOMIC FEASIBiliT¥AND BENEFITS ·.
6.1 Economic Feasibility
Criteria: Stage 2-4.A: The project is shown to be economically feasible (net positive savings in fulf!l,
operation I!Jnd maintenance, and capital costs over the life ofthe proposed project), •··
6.1.1 Economic Benefit
Explain the economic benefits of your project. Include direct cost savings, and how the people of
Alaska will benefit from the project. The benefits information should include the following:
• Anticipated annual and lifetime fuel displacement (gallons and dollars)
• Anticipated annual and lifetime revenue (based on i.e. a Proposed Power Purchase Agreement
price, RCA tariff, or cost based rate)
• Additional incentives (i.e. tax credits)
• Additional revenue streams (i.e. green tag sales or other renewable energy subsidies or
programs that might be available)
The economic model used by AEA is available at
httQ:i/www.akenergyauthority.org/Programs/Renewable-Energy-Fund/Rounds#round9. This
economic model may be used by applicants but is not required. The final benefit/cost ratio used
will be derived from the AEA model to ensure a level playing field for all applicants. If used, please
submit the model with the application.
It's estimated that annual fuel costs will be reduced by $66,420. Biomass fuel costs are estimated
at $22,560 and increased O&M costs are $7,430. Annual savings to the district is estimated to be
$36,430.
Over the period of 20 years, fuel oil consumption would be reduced by 360,000 gallons.
Potential revenue streams could come from a partnership with ANB and ANS. They could pay
some costs if their building is connected with our system. This would help the district while
benefitted that organization at the same time.
Additionally, it's possible to construct a greenhouse, which could produce food for our students.
This would decrease food costs and improve food quality immensely.
6.1.2 Power Purchase/Sale
The power purchase/sale information should include the following:
• Identification of potential power buyer(s)/customer(s)
• Potential power purchase/sales price -at a minimum indicate a price range
• Proposed rate of return from grant-funded project
Identify the potential power buyer(s)/customer(s) and anticipated power purchase/sales price
range. Indicate the proposed rate of return from the grant-funded project.
NA
6.1.3 Public Benefit for Projects with Private Sector Sales
For projects that include sales of power to private sector businesses (sawmills, cruise ships, mines,
etc.), please provide a brief description of the direct and indirect public benefits derived from the
AEA 15003 Page 22 of28 7/8/15
Renewable Energy Fund Round IX
Grant Application -Heat Projects
':·-'. A I A£" A I ~) . 'WI ·p
_,; ENERGY AUTHORITY
project as well as the private sector benefits and complete the table below. See section 1.6 in the
Request for Applications for more information.
The biomass fuel would be purchased locally. This will have a positive impact on our community.
Renewable energy resource availability (kWh per month)
Estimated sales (kWh)
Revenue for displacing diesel Qeneration for use at private sector businesses ($)
Estimated sales (kWh)
Revenue for displacing diesel generation for use by the Alaskan public ($)
6.2 Financing Plan
Criteria: Stage 2-4.8: The project has an adequate financing plan for completion of the grant-
funded phase and has considered options for financing subsequentphases of the project.
6.2.1 Additional Funds
Identify the source and amount of all additional funds needed to complete the work in the phase(s)
for which REF funding is being applied in this application. Indicate whether these funds are
secured or pending future approvals. Describe the impact, if any, that the timing of additional
funds would have on the ability to proceed with the grant.
The pre-feasibility study has already been completed (valued at $15,000). Funds have been
requested via CAPS IS from Alaska Legislature. District will contribute up to $10,000 for the
project.
6.2.2 Financing opportunities/limitations
If the proposed project includes final design or construction phases, what are your opportunities
and/or limitations to fund this project with a loan, bonds, or other financing options?
Klawock is a community that struggles with financial issues. Seventy five percent of the students
qualify for free and reduced lunches and illustrates the hardships in our community. Klawock
School is faced with reduced budgets and to take on more financial burden (loans), it would
negatively impact the programs we provide to our students.
6.2.2 Cost Overruns
Describe the plan to cover potential cost increases or shortfalls in funding.
If this situation arose, we would look at using limited district funds as well as look for financial
support from the City of Klawock. The school district is apprehensive of the idea of loans as the
district's budget is tight and to assume any more liabilities could have very negative impacts on our
programs for our students.
6.2.3 Subsequent Phases
If subsequent phases are required beyond the phases being applied for in this application,
describe the anticipated sources of funding and the likelihood of receipt of those funds.
AEA 15003 Page 23 of28 7/8/15
Renewable Energy Fund Round IX
Grant Application -Heat Projects I -.. A 'r 48'6iA
~ENERGY AUTHORITY
6.3 Other Public Benefit · · .· ····•··
Criteria: Stage 3-4. C: Other benefits to the Alaska public are demonstrated. Avoided costs alone
will not be presumed to be in the best interest of the public. . ·
Describe the non-economic public benefits to Alaskans over the lifetime of the project. For the
purpose of evaluating this criterion, public benefits are those benefits that would be considered
unique to a given project and not generic to any renewable resource. For example, decreased
greenhouse gas emission, stable pricing of fuel source, won't be considered under this category.
Some examples of other public benefits include:
o The project will result in developing infrastructure (roads, trails, etc.) that can be used for
other purposes
o The project will result in a direct long-term increase in jobs (operating, supplying fuel, etc.)
o The project will solve other problems for the community (waste disposal, food security, etc.)
o The project will generate useful information that could be used by the public in other parts
of the state
o The project will promote or sustain long-term commercial economic development for the
community
The community of Klawock and the general public will see many positive impacts from this project.
Partnering with ANB/ANS would be a huge benefit in our community. The ANB/ANS has deep
roots in Klawock, Alaska and this historic building will benefit. The organization struggles with
costs to heat so partnering with us on this project will allow them to use money to restore and
improve their building. The use of local wood products will ensure employment and will positively
impact our economy. Finally, this project would open the door to a school-operated green house.
This has been proven to work and it would not only have financial benefits to our district, but health
benefits for our students.
AEA 15003 Page 24 of28 7/8/15
Renewable Energy Fund Round IX
Grant Application-Heat Projects I ') AI AS& 2
--;ENERGY AUTHORITY
This new system would be fully integrated into our day-to-day operations. We currently have a
very robust system in place to sustain our equipment and this would be added into that system.
We have a good track record and have proven to effectively maintain our equipment and systems.
The forestry industry on the island is sustainable. The biomass fuel should be a very consistent
fuel source for this project for many years.
We have completed a pre-feasibility survey. We've identified and have sufficient room on our
existing property. The building infrastructure is in place and will connect relatively simply to the
new system.
The main school building had a major renovation in 2010. The main upgrades during that
renovation were new and efficient lighting and new windows. Our building is much more efficient
after this renovation. Additionally, the gymnasium building had some major improvements in 2012.
This consisted of foundational work, a new gym floor, and roof improvements, which make it a
more efficient building too .
. SECTION.~'+ I..OCAL. SUPPOR.TAt4D OPPOSITION ·
Describelg(;;!lsupport·and opposi.tip~.l<nown or anticipatea.fJI"t~e.projectlnci€CIIIiilltwFs. ··•········•····
resolutionso'orother documentatiortpflocal. supportfrolllt!"l~c9rnmunity.thafwPI.II.<:f:l;>enefiffrorl)
this proje(;t• The Documentation of support must•be dat(!d \1/~IJIIl•one year of the Rff~d.t~te ofJ1.dy · · ·. 7;2015;· .•.. · ... .. . . ... . . . . .·... .. . . .
I See attached letters and resolution.
AEA 15003 Page 25 of28 7/8/15
Renewable Energy Fund Round IX
Grant Application -Heat Projects
The pre-feasibility survey was done as part of a grant. We fulfilled the requirements of that grant
and the whole process was timely and went smoothly.
See attached Pre-Feasibility Study
Resumes: Maintenance Director-Ken Armour, Business Manager-Yodean Armour, and Project
Director-Jim Holien
Letters of Support: Sealaska, Klawock ANB, Klawock ANS, City of Klawock
Resolution and meeting minutes: Klawock City School Board
AEA 15003 Page 26 of28 7/8/15
Renewable E nergy Fund Round IX /
Grant Application-Heat Projects
I SECTION 13-AUTHORIZED SIGNERS FORM
Community/Grantee Name: Klawock Ci ty School District
Regular Election i s held: first Tuesday in October I Date: 10/6/15
I Authorized Grant Signer(s):
Pri nted Name Title Term "s·g,.~ture
Jim Holien Superintendent f\~ ~ v
I authorize the above person(s) to sign Grant Documents:
(Must be authorized below by the highest ranking organization/community/municipal
official)
Printed Name Title Term
Jim Holien Superintendent
v
I Grantee Contact Information:
Mailing Address: PO Box 9 Klawock , AK 99925
Phone Number: (907) 755-291 7
Fax Number: (907) 755 -2320
E-ma i l Address: Jim . holien@klawockschool . com
Federal Tax ID #: 92-6000105
Please submi t an updated form whenever there is a change to the above information.
AEA 15 003 Page 27 of 28 7/8/15
Renewable Energy Fund Round IX
Grant Application -Heat Projects EN ERGY AUTHORITY
SECTION 14-ADDITIONAL DOCUMENTATION AND CERTIFICATION
SUBMIT THE FOLLOWING DOCUMENTS WITH YOUR APPLICATION:
A. Contact informat ion 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 as ke d to provide resumes s ubm itted with applications in sepa rate electronic
documents if the individua ls do not want their resum es posted to the proj ect web s ite .
B . Letters or resolutions demonstrating local support per application form Section 9.
C . For projects involving heat: 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 RF A Section 1.4 that:
Commits the organization to provide the matching resources for project at the
match amounts indi cated 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 electroni c version of the entire application on CO 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 J im H olien
•
Signature ~ ;~ ~
Title Superinte'rl'dent
I I
Date i/ts/t>
AEA 15003 Page 28 of 28 7/8/15
9/9/2014
Jim Holien
Klawock School District
Re: Sealaska Support for Biomass Heating at the Klawock School
Dear Mr. Holien:
I am writing this letter to support the Klawock School District's effort to heat the school
with biomass. This will not only create a cost savings to the District but will create local
employment and community benefits through the use oflocally available resources.
Sealaska is a Native institution owned by more than 21,000 tribal member shareholders
whose core cultural values guide all that Sealaska does and represent the rich heritage of
our Tlingit, Haida and Tsimshian people. As the largest private landowner in Southeast
Alaska, Sealaska is the steward of our land and carries its responsibility to future
generations to protect and nourish our resources. Sealaska is also a leader in habitat
research, managing the land and forest resources to ensure the viability of streams, soil
and wildlife. Our land is one of our most precious assets, and Sealaska is committed to
maintaining and developing it responsibly.
Please contact me at 907-586-9275 if I can be of any further assistance.
Natural Resour s Manager
Sealaska Corporation
Sealaska • One Sealaska Plaza, Suite 400, Juneau, Alaska 99801-1276 • Tel: 907.586.1512 • Fax: 907.586.2304
PO Box469
Klawock AK 99925
September 11, 2015
CITY OF KLAWOCK
ALASKA
"Site of the First Salmon Cannery in Alaska"
To Whom It May Concern:
Phone# (907)755-2261
(907)755-2262
Fax# (907)755-2403
On behalf of the City of Klawock, I am writing this letter to lend our support to the
efforts of the Klawock City School District to secure funding for installation of a wood burning
boiler system . The Klawock School, as in many rural Alaskan cities, is the center of community
activity serving as a meeting place for the community and for all school activities . The
community takes pride in the accomplishments of our students, whether it be cheering for our
kids at the basketball games or applauding our children's achievements academ ically .
As a 'City School District', the Klawock City School District submits its budget each year
to the Klawock City Council. It is very clear that the cost to heat the buildings (classroom s, gym ,
etc.) has skyrocketed. We also provide funding to the district via a ded ica ted sales tax and local
contribution. It is i mportant to our community that the funds provided to the sc hoo l are
maximized to provide a well-rounded education to our children . An efficient wood burning
boiler system will allow the school to budget more funds for actually educating students instead
of heating the buildings. In addition, it is our understanding that the boiler system will be tied
into heating the ANB Hall , which sits adjacent to the school. This will again help meet the needs
of our commun ity.
Sincerely,
Mayor
City of Klawock
Irving Langmaid
President
Klawock Alaska Native Brotherhood
Klawock, AK
To Whom It May Concern:
September 10, 2015
The Klawock City School District is pursuing funding to install a wood burning boiler system to heat their
school buildings. This letter is to express the Klawock Alaska Native Brotherhood's (ANB) support of
those efforts. Our ANB Hall is located adjacent to the school and will directly benefit from the wood
burning boiler system as our building will be tied into the system for heating of our facility.
Costs of heating the ANB Hall are extremely high and prohibit the use of the building on many occasions.
It takes a number of hours to heat the building for just a couple of hours of use. Many groups who
would like to use the building for various events find the heating costs simply too high and go elsewhere
to hold their activities. The ANB Hall is centrally located and ideal for holding community meetings as
well as funerals and other events, but over the years the use has declined as fuel costs have increased.
Being tied into the Klawock City School District's wood burning boiler system would revitalize the
community's traditional use of the ANB Hall.
We appreciate the opportunity to partner with the Klawock City School District in bringing an efficient
heating system to our facilities.
Sincerely,
A-~
Irving Langmaid
Klawock ANB President
Lisa George
President
Klawock Alaska Native Sisterhood
Klawock, AK
To Whom l May Concern:
September 11.2015
This letter is to express the Klawock Alaska Native Sisterhood's (ANS) support of the Klawock City School
District's efforts to pursue funding for a wood burning boiler. Our ANB I ABS Hall is situated next to the
school and our heating system will be incorporated into the wood burning boiler system at the school.
Our costs to heat the ANB I ANS Hall are huge and often prevent the use of the building by our ANB I
ANS Camp as well as other groups. k literal~takes most of the day to heat the building for just a
couple of hours of use. Many groups that would like to use the building for various events decide to
take their activities elsewhere simply because the heating costs are too high. Our ANS does a lot of
fundraising but we cannot cover the cost of heating the building. Traditionally the ANB Hall. because of
its central location, has been ideal for holding community meetings, memorial services, funerals and
other events, but over the years the use has drastically diminished as fuel costs have increased. Being
tied into the Klawock City School District's wood burning boiler system would breathe life back into the
community's traditional use ofthe ANB Hall.
We appreciatetheopportunitytowork with the KlawockCtty School District in bringing an
efficient heating system to both of our facilities
~cerely,
/(\I ~-1 ( r\
isa G•eorge '
Klawock ANS ident
Whereas
Klawock City School District
P.O . Box 9 Klawoc k , Alaska 99925 907 -755-2220 F ax : 907-755-2913
Jim Ho li en
Superintendent
Resolution 2015-1
Ke lli Larson
K -12 Principa l
Support for Wood Boiler Heating System
The Klawock City School District looks to effectively use district funds to best
meet the needs of its students . School funding is becoming increasingly difficult to
obtain so spending our monies efficiently is important. The district can save considerable
money each year by utilizing local wood resources to heat its facilities and provide hot
water;
Whereas
The Klawock City School District Board of Education supports converting from
current fuel oi l boilers to a more cost efficient wood boiler system;
Therefore Be It Resolved
The Klawock City School District Board of Education supports efforts to obtain
funding for a new boiler system. This board recognizes the positive impacts this system
would have on the finances ofthe district, which leads to positive impacts on KCSD
students.
Karen Cleary
Board President
Date
M E ET ING TOMORROW'S C HALLENGES TODAY
www .k lawockschool .com
Klawock City School District
School Board Meeting
Conference Room
January 27, 2015
SPM
I. CALL TO ORDER, ROLL CALL, VERIFY QUORUM, PLEDGE, READING OF
MISSION STATEMENT
Karen Cleary called the meeting to order at 5 PM.
Roll Call
Karen Cleary Yes
Mary Edenshaw Yes
Lisa George Yes
JeffNickerson Yes
Ruby Smith No
Quorum Present
Also Present: Supt. Jim Holien, Val Steward, Yodean Armour, Kelli Larson, Laura
Steward, Jodi Mar, Corby Weyhmiller, Eliana Rubio, Taya Marvin-Looney, and Mike
Cleary
Eliana Rubio read the Mission Statement.
II. APPROVAL OF AGENDA
Mary Edenshaw made a motion, seconded by Lisa George, to approve the agenda with
the addition of Action Item F-Acceptance of Resignations letters of Jason England and
Samantha Morgan.
Motion Carried.
III. PUBLIC COMMENT (Related to Agenda Items)
None
IV. REPORTS
A. Student Report-Middle School Trip
The Middle School students, represented by Eliana Rubio and Taya Marvin-
Looney, along with teachers Corby Weyhmiller and Jodi Mar, explained their
proposed trip to D.C. and fundraising plans for this year's 6'h and 7'h grade
classes. There are 23 kids plus sponsors who would be part of the Explore
America Program for a cost $80,000 ($2900 per student). If the group does not
have two-thirds of the funds raised by December of2015 they will switch to the
back-up plan of going to the State Capital in Juneau. Either way the trip
scheduled for the spring of2016 will tie in with the American History
curriculum slated for next year. In addition the trip and fund-raising efforts are
designed to motive the students toward eligibility and leadership development.
The fundraising efforts include two grant opportunities ($60,000 and $20,000)
for which Ms. Mar will apply; concessions; a $10,000 raffle; and individual
student scholarships thru the Explore America program. Staff will soon hold a
parent meeting and move forward.
B. Board
The Board congratulated Lisa George and Jared Barlow on their wedding held
during the recent home basketball games.
C. Principal-Kelli Larson
Principal Kelli Larson highlighted her Principal's Report, including a brief
update regarding professional development for the new teacher evaluation
system. Grades 3-10 will this week pilot the state-wide testing system on AMP
It Up Day. This is a state-wide attempt to familiarize students with the new
testing system prior to the spring testing window. Elizabeth Peratrovich Day is
February 16. We will plan a dessert social for the elders with the theme of
'respect' during that week.
D. Athletic Director-Kelli Larson I Laura Steward
Laura Steward briefly discussed her written report and highlighted the AD
meeting held the last two days in Juneau. The Board would like the AD's to
request starting on Sunday or Monday to eliminate the open day on Sunday
during the State Tournament. Yodean Armour added that we have great
representatives from Region V who bring these scheduling issues to the table
each year at the State level, but with little success.
E. Business Manager-Yodean Armour
Business Manager Yodean Armour referred to her Board report provided in the
packet. She added that she will be submitting soon the district e-rate form 470,
which will be posted for 28 days.
F. Superintendent-Jim Holien
Superintendent Jim Holien discussed his report and added the following: I) The
Log Cabin duplex has just been rented meaning all rental units will be occupied
beginning February I. 2) Carving shed-The Four Square Church group is very
interested in donating the labor to construct a new Native Arts Building in the
future. They have met with Jim. Jim will pursue donation of the materials. 3)
We have received resignation letters !Tom Jason England and Samantha Morgan.
We have posted the openings and it appears we may have several applicants.
Interviews will occur next Wednesday. Karen Cleary indicated she could serve
on the interview committee. 4) The AASB Board training with Timi Tullis will
be March 23 !Tom 5 PM to 9 PM per the Board's request. Mr. Holien will
convey the wishes of the Board to Ms. Tullis. 5) Mr. Holien plans to discuss
with Craig Superintendent Jack Walsh the possibility of sharing a band teacher.
Mr. Holien hopes to have more information regarding this and other options for
discussion at the budget work session.
V. CONSENT AGENDA
A. Approval of Minutes of December 9, 2014
B. Approval ofVouchers
C. Correspondence
I. Acknowledgement of Confidential Correspondence
Received: None
Mary Edenshaw made a motion, seconded by Lisa George to approve the
Consent Agenda as presented.
Motion Carried.
VI. ACTION ITEMS
A. Colleen Webb Contract~ temporary contract starting 1/19/15 to 5/30115
Mary Edenshaw made a motion, seconded by Lisa George, to approve the hire
of Colleen Webb from 1/19/15 to 5130115.
Motion Carried.
B. Spencer Beckman Contract~ Long-term Sub Contract for Corby Wehymiller
1/19/15 to 3113/15
Mary Edenshaw made a motion, seconded by Lisa George, to approve the hire
of Spencer Beckman as a long-term sub from 1/19/15 to 3/13/15.
Motion Carried.
C. Budget Revision #3
D.
Mary Edenshaw made a motion, seconded by Lisa George, to approve Budget
Revision #2.
Mr. Holien discussed Budget Revision #2. Revenues have increased because
Foundation funding was higher than anticipated. Health insurance has been
adjusted to reflect a lower percentage increase. Equipment increase is due to the
copier and phone system purchase. SPED increases reflect the increase in the
intensive population. Student purchases technology include replacement
funding for the laptops on an annual basis. Mr. Holien indicated that if we have
a draw on reserves we can re-code this line item to the Capital Projects-
Technology at the end of the year. At this time we are looking at a draw on
reserves of $84,000, significantly less than anticipated in the initial FY 15
budget. We have yet to receive Impact Aid monies. Impact Aid is always a
moving target.
Roll Call
Mary Edenshaw Yes
Lisa George Yes
Karen Cleary Yes
Jeff Nickerson Yes
Motion Carried.
Superintendent Contract
Mary Edenshaw made a motion, seconded by Lisa George, to approve the
Superintendent Contract as presented.
Roll Call
Mary Edenshaw Yes
Lisa George Yes
Karen Cleary Yes
JeiTNickerson Yes
Motion Carried.
E. Resolution 2015-1: Support for Wood Boiler Project
Lisa George made a motion, seconded by Mary Edenshaw, to approve
Resolution 2015-1: Support for Wood Boiler Project.
Motion Carried.
F. Acceptance of Resignations letters of Jason England and Samantha Morgan.
Mary Edenshaw made a motion, seconded by Lisa George, to accept the
resignations letters of Jason England and Samantha Morgan.
Motion Carried.
VII. BOARD COMMENT
A. Next Meeting Date-February 19,2015 at 5 PM with staff and budget work
session immediately following.
VIII. ADJOURNMENT
Mary Edenshaw made a motion, seconded by Lisa George, to adjourn the meeting.
Motion Carried
Meeting adjourned at 6 PM
High Efficiency Low Emission
Wood Fired Heating System
Pre-Feasibility Report
August 26, 2014
Version: Final
WES Energy & Environment, LLC
902 Market Street • Meadville, PA 16335
(814) 337‐8223
Prepared for:
Klawock City School District
In Partnership with :
Fairbanks Economic Development CorporaƟon
Alaska Wood Energy Development Task Group
Prepared By:
Biomass Prefeasibility Report Date: August 26, 2014 Klawock School District
FINAL Klawock, Alaska
WES Energy & Environment
Table of Contents
1.0 Executive Summary .............................................................................................................. 1
2.0 Existing Fuel Usage & Heating System ................................................................................. 2
2.1 Main Building ................................................................................................................... 2
2.2 Gymnasium ....................................................................................................................... 4
2.3 Modular Buildings ............................................................................................................ 6
2.4 Native Arts Building .......................................................................................................... 8
3.0 Forest Resource and Fuel Availability ................................................................................ 10
4.0 Proposed Biomass System Options ................................................................................... 11
4.1 Main Building Biomass System Options ......................................................................... 13
4.1.1 Option 1a : 300,000 Btu/hr Wood Pellet System ................................................... 13
4.1.2 Option 1b : 300,000 Btu/hr Dry Fuel System .......................................................... 15
4.2 Gymnasium ..................................................................................................................... 17
4.2.1 Option 2a : 510,000 Btu/hr Wood Pellet System ................................................... 18
4.2.2 Option 2b : 500,000 Btu/hr Dry Fuel System .......................................................... 19
4.3 Modular Buildings .......................................................................................................... 20
4.3.1 Option 3a : 570,000 Btu/hr Wood Pellet System ................................................... 21
4.3.2 Option 3b : 500,000 Btu/hr Dry Fuel System .......................................................... 23
4.4 Native Arts Building ........................................................................................................ 24
4.0 Benefit/Cost Analysis ......................................................................................................... 24
5.0 Conclusions & Recommendations ..................................................................................... 29
6.0 General Biomass Technology Information ........................................................................ 30
Appendix A – Conceptual Drawings
Appendix B – Capital Cost Estimates
Appendix C – 20 Year Financing at 4% APR Cash Flow Analysis
Appendix D – Sensitivity Analysis of Annual Savings to Oil and Biomass Prices
Appendix E – Alaska Department of Education & Early Development 20 Year LCCA
Biomass Prefeasibility Report Date: August 26, 2014 Klawock School District
FINAL Klawock, Alaska
WES Energy & Environment
Page 1 of 32
1.0 EXECUTIVE SUMMARY
This preliminary feasibility study evaluates options for Klawock City Schools to utilize high
efficiency low emission wood fired technologies for space heating and domestic hot water in
the Main Building, Gymnasium, Modular Buildings, and Native Arts Building. Installation of a
wood fired heating system would present the Klawock City Schools with the opportunity to
reduce operating costs, utilize a renewable fuel, and keep fuel expenditures within the regional
economy.
Four buildings were evaluated for interconnection with a biomass heating system including the
Main Building, Gymnasium, Modular Buildings, and Native Arts Building. Figure 1 shows an
aerial picture of the school identifying the buildings considered in this report.
Figure 1 – Aerial View of Klawock City School District
Image source: Bing Maps
The Native Arts Building is planned for replacement in the near future and is not considered as
a viable option for interconnection. Two biomass boiler technologies including wood pellet and
dry fuel (dry sawdust, dry wood chips, or wood pellets) systems were considered for each of the
three remaining building combinations. Dry sawdust is the best value for the dry fuel system
Biomass Prefeasibility Report Date: August 26, 2014 Klawock School District
FINAL Klawock, Alaska
WES Energy & Environment
Page 2 of 32
and is used for generation costs and savings for this report. A summary of the costs and
benefits for each option are listed in Table ES1.
Table ES1 – Cost and Benefit Summary
Option Estimated
Capital Cost
1st Year Net
Annual
Operating
Savings
Simple
Payback,
Years
20 Year Net
Present
Value
20 Year
B/C Ratio
1a – Main Building Wood Pellet
System $297,781 $8,056 37.0 ($115,801) 0.61
1b – Main Building Dry Sawdust
System $721,493 $23,540 30.6 ($240,194) 0.67
2a – Main Building & Gymnasium
Wood Pellet System $420,929 $11,326 37.2 ($162,675) 0.61
2b – Main Building & Gymnasium
Dry Sawdust System $858,556 $36,430 23.6 ($114,859) 0.87
3a – Main Building, Gymnasium, &
Modulars Wood Pellet System $573,994 $10,778 53.3 ($322,974) 0.44
3b – Main Building, Gymnasium, &
Modulars Dry Sawdust System $983,791 $39,834 24.7 ($170,769) 0.83
Notes:
1 – Net Annual Operating Savings include costs for wood fuel, supplemental fossil fuel, and operation &
maintenance (O&M) costs.
2 – 20 Year Net Present Value takes the present value of the operating savings over 20 years with annual inflations
of 3.3% for oil and 3.0% for remaining O&M costs and the initial capital outlay of the total project cost using a
discount rate of 3.0% as published in the “Energy Price Indices and Discount Factors for Life‐Cycle Cost Analysis ‐
2013”. A value greater than zero means that savings are greater than expenses over 20 years in the value of
today’s dollars.
3 – 20 Year Benefit/Cost (B/C) Ratio is calculated by dividing the present value of net annual operating savings over
a 20 year period with a discount rate of 3.0% by the Estimated Capital Cost. A value greater than 1 means the
benefits exceed the costs over a 20 year period.
2.0 EXISTING FUEL USAGE & HEATING SYSTEM
The Klawock School District uses #1 fuel oil to heat buildings on the campus. Four buildings
were evaluated during the site visit. This section gives an overview of the fuel use and heating
systems for each of the four buildings.
2.1 MAIN BUILDING
The Main Building contains most of the classrooms, library, and administration offices for the
school. This building is 60 years old, houses 130 students, and has two floors with 32,280 ft2 of
heated floor space. The Main Building uses approximately 12,000 gallons of #1 fuel oil annually
at an approximate price of $4.10 per gallon for an annual expenditure of $49,200 for heating
and domestic hot water. Two above ground 550 gallon fuel oil tanks are used for onsite fuel
storage.
The Main Building has two model 88 Weil McLain hot water boilers firing on #1 fuel oil and
rated at 943,000 Btu/hr output and 50 psig. The boilers were installed in 2001 and are in good
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condition. The hot water heating distribution system is a primaryͲsecondary piping system.
Unit ventilators provide heating and ventilation to classrooms and are controlled by wall
mounted thermostats. A combination of Johnson Controls pneumatics (1983 vintage) and low
voltage controls (1954 vintage) from an unknown manufacturer are installed throughout the
building and are unable to be serviced. Domestic hot water is heated indirectly using the Weil
Mclain boilers and stored in a hot water storage tank that is boosted by electric heat when
needed. There is potential room in the existing boiler room to locate hot water thermal storage
tanks, however the biomass boilers will likely have to be located in another location.
Fuel deliveries for calendar year (CY) 2013 are used for the purposes of load modeling and
boiler sizing in this memorandum. The heating degree days for CY 2013 were fairly close to the
30 year average for the region. Thus, CY 2013 weather data from Klawock, Alaska is used with
the 12,000 gallon annual fuel oil use for the purposes of load modeling and boiler sizing in this
study. Figure 2 shows how the daily average heating demand for the Main Building would be
expected to vary over the course of a year. During a 24Ͳhr period, the actual load will vary
above and below this average value. Peak loads are estimated at 150% of the average load.
Peak loads would be experienced for short durations over a 24 hour period.
Figure 2 – Main Building Estimated Average Daily Heating Demand for CY 2013
Note: The daily average heating demand model is based on local weather data and annual fuel usage provided
by Klawock City School District. Actual demand would fluctuate above and below the average heating demand
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values shown over a 24‐hr period. The peak demand is estimated as 150% of the average demand and would
only be experienced for short durations over a 24 hour period.
A load duration curve was developed using the daily average heating demand curves. Load
duration curves sort the daily average heating demand over the course of a year from highest
to lowest and plot it over the number of days to show the annual range of facility heating
demand. Figure 3 shows the estimated load duration curve for CY 2013.
Figure 3 – Main Building Estimated Load Duration Curve for CY 2013
Note: The daily average heating demand model is based on local weather data and annual fuel usage provided
by Klawock City School District. Actual demand would fluctuate above and below the daily average heating
demand values shown over a 24‐hr period. The peak demand is estimated as 150% of the average demand and
would only be experienced for short durations over a 24 hour period.
2.2 GYMNASIUM
The Gymnasium contains the basketball court and locker rooms. This building has 11,500 ft2 of
floor space and is 40 years old. The Gymnasium uses approximately 6,000 gallons of #1 fuel oil
annually at an approximate price of $4.10 per gallon which results in an annual expenditure of
$24,600. An above ground 2,000 gallon fuel oil tank is used for onsite storage.
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The gymnasium has two model 88 Weil McLain hot water boilers firing on #1 fuel oil, each rated
at 704,000 Btu/hr output and 50 psig. The boilers were installed in 1999 and are in good
condition. The distribution piping is connected to baseboard radiators in the locker rooms and
to air handling units for heating the gym. The piping system has one set of boiler pumps that
circulate water through the boiler and through the distribution system. Flow and balancing of
the piping has been an issue. Domestic hot water is heated indirectly using the heating boilers
and a storage tank that is boosted by electric heat as needed. There is not enough room in the
existing boiler room to install a biomass boiler or thermal storage tanks. An addition would
have to be constructed to house the biomass system or the heating system would have to be
connected to the Main Building distribution system. Pipes are capped and abandoned in place
that used to heat the Gymnasium from the Main Building boiler system. These pipes were
abandoned due to inadequate insulation. These pipes are not considered for reuse in this
study. Figure 4 shows how the daily average heating demand for the Gymnasium would be
expected to vary over the course of a year.
Figure 4 – Gymnasium Estimated Average Daily Heating Demand for CY 2013
Note: The daily average heating demand model is based on local weather data and annual fuel usage provided
by Klawock City School District. Actual demand would fluctuate above and below the daily average heating
demand values shown over a 24‐hr period. The peak demand is estimated as 150% of the average demand and
would only be experienced for short durations over a 24 hour period.
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Figure 5 shows the load duration curve for the Gymnasium.
Figure 5 – Gymnasium Estimated Load Duration Curve for CY 2013
Note: The daily average heating demand model is based on local weather data and annual fuel usage provided
by Klawock City School District. Actual demand would fluctuate above and below the daily average heating
demand values shown over a 24‐hr period. The peak demand is estimated as 150% of the average demand and
would only be experienced for short durations over a 24 hour period.
2.3 MODULAR BUILDINGS
Two 1,920 ft2 Modular Buildings were constructed in 1989 as temporary structures for
classrooms. They each use Lennox oil fired furnaces rated at 134,000 Btu/hr input located in
closets with forced air distribution systems. The furnaces were installed in 1989 and are well
maintained. One gallon domestic hot water heaters are located in the closets next to each
furnace. The Modular Buildings used 1,600 gallons total of #1 fuel oil annually at an
approximate price of $4.10 per gallon which results in an annual expenditure of $6,560 for
heating and DHW. An above ground 550 gallon fuel oil tank serves both buildings. There is not
enough room in the modular buildings to install a biomass boiler and thermal storage tanks. An
addition would have to be constructed or heating pipes would have to be extended from the
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Main Building and hot water coils installed in the ductwork. Figure 6 shows how the daily
average heating demand for the Modular Buildings would be expected to vary over the course
of a year.
Figure 6 – Modular Buildings Estimated Average Daily Heating Demand for CY 2013
Note: The daily average heating demand model is based on local weather data and annual fuel usage provided
by Klawock City School District. Actual demand would fluctuate above and below the daily average heating
demand values shown over a 24‐hr period. The peak demand is estimated as 150% of the average demand and
would only be experienced for short durations over a 24 hour period.
Figure 7 shows the load duration curve for the Modular Buildings.
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Figure 7 – Modular Buildings Estimated Load Duration Curve for CY 2013
Note: The daily average heating demand model is based on local weather data and annual fuel usage provided
by Klawock City School District. Actual demand would fluctuate above and below the daily average heating
demand values shown over a 24‐hr period. The peak demand is estimated as 150% of the average demand and
would only be experienced for short durations over a 24 hour period.
2.4 NATIVE ARTS BUILDING
The Native Arts Building is a modular building used for carving and woodworking. A small Toyo
fuel oil fired space heater provides building heat. Domestic hot water is not currently available
in the building. The Native Arts Building used 400 gallons of #1 fuel oil annually at an
approximate price of $4.10 per gallon which results in an annual expenditure of $1,640 for
space heating. An above ground 550 gallon fuel oil tank serves the building. The building is
planned for replacement in the near future. There is not enough room in the Native Arts
Building to install a biomass boiler or thermal storage tanks. Figure 8 shows how the daily
average heating demand for the Native Arts Building would be expected to vary over the course
of a year.
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Figure 8 – Native Arts Building Estimated Average Daily Heating Demand for CY 2013
Note: The daily average heating demand model is based on local weather data and annual fuel usage provided
by Klawock City School District. Actual demand would fluctuate above and below the daily average heating
demand values shown over a 24‐hr period. The peak demand is estimated as 150% of the average demand and
would only be experienced for short durations over a 24 hour period.
Figure 9 shows the load duration curve for the Native Arts Building.
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Figure 9 – Native Arts Building Estimated Load Duration Curve for CY 2013
Note: The daily average heating demand model is based on local weather data and annual fuel usage provided
by Klawock City School District. Actual demand would fluctuate above and below the daily average heating
demand values shown over a 24‐hr period. The peak demand is estimated as 150% of the average demand and
would only be experienced for short durations over a 24 hour period.
3.0 FOREST RESOURCE AND FUEL AVAILABILITY
Prince of Wales Island is heavily forested with the majority of the land owned by the US Forest
Service and smaller tracts owned by and State and private owners. There are currently no
known forest stewardship plans in place for management. Potential fuel suppliers were
contacted for pricing and availability of biomass fuel. Table 1 lists the companies contacted,
location, contact information, and fuels available.
Table 1 – Contacted Fuel Supplier’s
Company Location Phone Fuels
Welcome Inn B&B Thorne Bay 907Ͳ828Ͳ3950 Palletized Split Cordwood
Viking Lumber Klawock 907Ͳ755Ͳ8880 Dry wood chips, Dry Sawdust, Wet Wood
Chips, Compressed Bricks
Tongass Forest Enterprises Ketchikan 907Ͳ617Ͳ4542 Wood Pellets
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The biomass fuels considered for evaluation in this report are dry sawdust, dry wood chips, and
wood pellets. Fuel prices used for evaluation are $120 per ton for dry sawdust, $260 per ton
for dry wood chips, and $330 per ton for wood pellets. Table 2 summarizes the available fuels
for heating as well as their cost per mmBtu output comparison.
Table 2 – Fuel Pricing and Cost per mmBtu
Fuel, Unit Cost per
Unit
Input Heating
Value, mmBtu
per Unit
Estimated Boiler
Efficiency
Boiler Output
Heating Value,
mmBtu/Unit
Boiler Output
Heating Cost,
$/mmBtu
1Dry Sawdust, Ton $120.00 13.2 75% 9.9 $12.12
1Dry Wood Chip, Ton $260.00 13.2 75% 9.9 $26.26
1Wood Pellets, Ton $330.00 15.2 80% 12.16 $27.14
#1 Fuel Oil, Gallon $4.10 0.134 80% 0.1072 $38.25
Note:
1 ‐ Input heating values assumes 8% moisture content wet basis for wood pellets and 20% moisture content wet
basis for chips and sawdust with an average High Heating Value of 8,255 Btu/lb of bone dry wood based on a
mixture of Sitka Spruce(8,100 Btu/lb) and Western Hemlock (8,410 Btu/lb)1.
Dry sawdust is the lowest cost fuel per unit of energy and is therefore used in this report to
generate fuel costs and savings for the dry fuel options. The dry fuel system would also be able
to utilize dried wood chips or wood pellets if fuel prices became more competitive in the future
or if dry sawdust became unavailable.
4.0 PROPOSED BIOMASS SYSTEM OPTIONS
Options for using high efficiency low emission biomass systems were evaluated for heating the
Main Building, Gymnasium, Modular Buildings, and Native Arts Building. There is not adequate
space to locate new wood fired heating systems in the Gymnasium, Modular Buildings, and
Native Arts Building. Because of this each building is evaluated for interconnection with the
biomass system evaluated for the Main Building. Preliminary pipe routing for interconnecting
buildings to determine lengths required are shown in Figure 10.
1 Avery, Robert B., Funck, James W., & Wilson, Pamela L. (2010). Fuelwood Characteristics of Northwestern Conifers
and Hardwoods (updated). Portland, Or.: U.S. Department of Agriculture, Forest Service, Pacific Northwest
Research Station.
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Figure 10 – Preliminary Building Connection Piping Routes
Additional wood fuel use would be required due to heat loss through the buried distribution
pipes. Piping heat losses are estimated and resulting wood volumes are calculated for these
losses. Additional wood use resulting from piping heat losses are included in the total volumes
required for each option. A summary of estimated piping heat losses and additional wood
requirements due to heat losses are provided in Table 3.
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Table 3 – District Piping Lengths, Heat Losses, and Heat Loss Fuel Use Summary
Option
Supply and
Return Total
Heating Pipe
Length, Feet
Heat Loss per
Foot, Btu/hr
per Foot
Annual Hours
of Operation
Annual Heat Loss
from Piping,
mmBtu
Additional Fuel
Required for
Piping Heat Loss,
Tons/Year
1a – Main Building Wood Pellet System 240 23 6,500 35.1 2.9
1b – Main Building Dry Sawdust System 240 23 6,500 35.1 3.6
2a – Main Building & Gymnasium Wood
Pellet System 800 23 6,500 117.0 9.7
2b – Main Building & Gymnasium Dry
Sawdust System 800 23 6,500 117.0 11.9
3a – Main Building, Gymnasium, &
Modulars Wood Pellet System 1,100 23 6,500 160.9 13.3
3b – Main Building, Gymnasium, &
Modulars Dry Sawdust System 1,100 23 6,500 160.9 16.3
Note: Assumes 9 months of operation for all options.
4.1 MAIN BUILDING BIOMASS SYSTEM OPTIONS
Two high efficiency low emission biomass fired boiler systems are evaluated for
interconnection with the existing heating system serving the Main Building. Option 1a
considers a boiler system that would fire exclusively on wood pellets. Option 1b considers a
boiler system that would fire on dried sawdust since it is the lowest cost per unit of energy.
This system could also utilize dried wood chips or wood pellets if the prices for these fuels
became more economical in the future.
4.1.1 Option 1a : 300,000 Btu/hr Wood Pellet System
Two advanced combustion wood pellet boilers each sized at approximately 0.15 mmBtu/hr of
heat output would be combined with approximately 500 gallons of thermal storage to
efficiently meet the school's range of heating needs. The rated operating range of the system
would be from ~0.05 to ~0.3 mmBtu/hr with thermal storage allowing short term peaks to be
met. The hot water thermal storage would be heated to a preset temperature (typically 195°F
or higher) that is higher than distributed for building heat. The thermal storage tank would use
a 3Ͳway mixing valve to blend hot water in the tank with colder return water from the school to
maintain a range of supply water temperatures (160°F – 190°F) determined by an outside air
temperature reset schedule.
The storage would allow the system to meet a 1Ͳhr peak of ~0.36 mmBtu/hr and a 15 minute
peak of ~0.54 mmBtu/hr. The storage would also allow one boiler to operate efficiently to
provide domestic hot water heating. The storage will hold approximately 220,000 Btu for
domestic hot water usage. This allows one pellet boiler to fire for a period of approximately 1Ͳ
½ hours within its efficient firing range to charge the storage. The heat in the storage is then
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used to provide domestic hot water needs, until the temperature drops to ~140oF and the
system has to fire to charge it once more.
The wood pellet boilers, metering bin, expansion tank, valves, fittings, and distribution pumps
will be factory installed in a roll off shipping container. The container can vary depending on
the manufacturer selected, but can be a roll off shipping container or wood paneled storage
box. A fuel storage bin capable of holding 45 tons of wood pellets will be located next to the
roll off container to accept bulk deliveries of wood pellets pneumatically or with an auger.
Wood pellets will be automatically transferred using a flexible auger or pneumatic hose from
the storage bin to a metering bin that feeds the three wood pellet boilers. Heating distribution
pipes will be installed from the wood pellet heating plant to the existing fuel oil fired boiler
plant. The thermal storage system will be located in the existing fuel oil boiler plant and tieͲin
with the existing hot water heating system. The existing fuel oil fired heating boilers would
remain to supplement the biomass system during periods of maintenance and if the heating
demand is outside the range of the biomass system. Appendix A contains a conceptual site
plan, floor plan, and schematic for the biomass system. Figure 11 shows the estimated wood
pellet system coverage of the FY 2013 load duration curve.
Figure 11 – Estimated Biomass System Coverage of Load Duration Curve
Note: The load duration curve model is based on local weather data and annual fuel delivery volumes provided by
Klawock City School District. Potential coverage of 97% is shown. Actual coverage will depend on management of
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loads and the use of thermal storage. The system can be used as described in the text to cover approximately 100%
of the annual demand. Management of loads, the use of thermal storage, and operations will determine actual
biomass coverage.
Figure 11 shows 97% biomass coverage of the FY 2013 load duration curve. Actual coverage
will vary depending on weather conditions, peak demands, equipment operation schedules,
and periods when the boilers are shut down for maintenance. This report assumes 95%
coverage of fuel oil usage for estimating the potential fuel use and savings for this
memorandum.
4.1.2 Option 1b : 300,000 Btu/hr Dry Fuel System
An advanced combustion unit and hot water boiler capable of firing on dry sawdust, dry wood
chips, or wood pellets sized at approximately 300,000 Btu/hr of heat output is evaluated. The
boiler would be combined with approximately 750 gallons of thermal storage to efficiently
meet the school's range of heating needs. The rated operating range of the system would be
from ~0.09 to ~0.3 mmBtu/hr with thermal storage allowing short term peaks to be met. The
storage would allow the system to meet a 1Ͳhr peak of ~0.4 mmBtu/hr and a 15 minute peak of
~0.65 mmBtu/hr. The storage will hold approximately 330,000 Btu for domestic hot water
usage. This allows the boiler to fire for a period of approximately one hour within its efficient
firing range to charge the storage. The heat in the storage is then used to provide domestic hot
water needs, until the temperature drops to ~140oF and the system has to fire to charge it once
more.
Wood chips do not convey as easily as wood pellets, require additional storage space since they
are less dense, and typically require screening to eliminate rocks and other foreign materials
from the fuel. Site constraints of the school property limit the cost effective options available
for installing sufficient onsite fuel storage. A silo style storage bin is not recommended for
wood chips or sawdust in an institutional setting. Since the material is not free flowing it can
bridge, freeze, or clog the outlet of the silo style bin and can be dusty or noisy to convey from
the delivery truck to the storage silo.
The storage system recommended would be two selfͲunloading walking floor tractor trailers
purchased by Klawock City Schools for use as onsite storage and for fuel delivery. One trailer
would be “plugged in” to the fuel handling system at the school and the second trailer would be
at the sawmill or pellet plant waiting to be swapped out when needed. The storage trailer at
the school would unload out of the back to keep a small storage building (~120 ft2) filled with
dry wood chips, wood pellets, or dry sawdust. A hydraulic rake system would pull fuel from the
bottom of the storage building onto a vibrating conveyor with a perforated holes at the end
allowing “right sized” wood fuel to fall through and oversized materials to be separated out of
the fuel stream. The “right sized” fuel would continue on through a series of augers into a
metering bin that would feed the boiler to satisfy the heating demand of the Main Building.
The dry wood chip boiler, metering bin, valves, fittings, and distribution pumps will be factory
installed in a container. The container can vary depending on the manufacturer selected, but
can be a roll off shipping container or wood paneled storage box. The thermal storage tanks
could be located in the existing fuel oil fired boiler room to reduce the outdoor footprint of the
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system. Heating distribution pipes will be installed from the wood chip heating plant to the
thermal storage tank(s) and tieͲin with the existing hot water heating system. The existing fuel
oil fired heating boilers would remain to supplement the biomass system during periods of
maintenance and if the heating demand is outside the range of the biomass system. Appendix
A contains a conceptual site plan, floor plan, and schematic for the biomass system. Figure 12
shows the estimated wood pellet system coverage of the FY 2013 load duration curve.
Figure 12 – Estimated Biomass System Coverage of Load Duration Curve
Note: The load duration curve model is based on local weather data and annual fuel delivery volumes provided by
Klawock City School District. Potential coverage of 92% is shown. Actual coverage will depend on management of
loads and the use of thermal storage.
The single wood chip boiler would not be as responsive to load fluctuations as multiple smaller
pellet boilers and is sized to maximum the time spent in the efficient operating range of the
boiler. Figure 12 shows 92% biomass coverage of the FY 2013 load duration curve as the red
shaded portion. The existing fuel oil system will supplement the wood chip boiler during peak
loads, low loads, and during periods of maintenance. Actual coverage will vary depending on
weather conditions, peak demands, equipment operation schedules, and periods when the
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boilers are shut down for maintenance. This report assumes 90% coverage of fuel oil usage for
estimating the potential fuel use and savings for this memorandum.
There are currently limited manufacturers who offer a boiler capable of firing with a dry wood
chip or dry sawdust in the optimal size recommended for the Main Building. Many
manufacturers offer their smallest boiler at ~500,000 Btu/hr output. Use of a 500,000 Btu/hr
system may result in excessive cycling during the shoulder seasons but could be mitigated
through increased thermal storage sizing.
4.2 GYMNASIUM
The gymnasium is a standalone building currently using #1 fuel oil fired boilers for space
heating and domestic hot water. There is not enough room to locate wood fired boilers in the
existing boiler room, build an addition, or install a containerized system in the vicinity of the
Gymnasium. Because of this the Gymnasium is evaluated for interconnection with the heating
system in the Main Building if a wood fired system was installed. All costs and savings for the
Gymnasium are estimated assuming that a wood fired system is being installed for the Main
Building. Insulated heating pipes would be installed from the Main Building boiler room to the
Gymnasium boiler room to tie into the existing heating system. Buried pipes that run between
the Gymnasium and the Main Building were previously abandoned in place and capped due to
inadequate insulation. This analysis assumes using new buried preͲinsulated PEX piping for
interconnection.
The oil boiler located in the Gymnasium could likely be decommissioned and removed since the
existing fuel oil boilers in the Main Building would be large enough for backup capacity for the
system. Figure 13 shows the Gymnasium (Blue Shading) and Main Building (Green Shading)
average daily heat demand stacked on top of each other for an estimated combined heating
demand and the estimated combined daily peak demand in yellow.
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Figure 13 – Estimated Load Duration Curve for the Main Building & Gymnasium
Note: The load duration curve model shows the estimated daily average heating demands for the Main Building
and Gymnasium stacked on top of each other. The daily peak heating demand is represented for both buildings
combined in yellow.
4.2.1 Option 2a : 510,000 Btu/hr Wood Pellet System
If the Gymnasium were connected to the heating distribution system for the Main Building, the
recommended wood pellet system would have 510,000 Btu/hr of capacity and 750 gallons of
hot water thermal storage. The biomass system would be located in the same location as
Option 1a and hot water distribution pipes would be extended from the boiler room in the
Main Building to tie into the boiler room in the Gymnasium. Three 170,000 Btu/hour advanced
combustion units and hot water boilers firing on wood pellets could be used with cascading
operation. The rated operating range of the system would be from ~0.05 to ~0.51 mmBtu/hr.
The hot water thermal storage would allow the system to meet a 1Ͳhr peak of ~0.6 mmBtu/hr
and a 15 minute peak of ~0.87 mmBtu/hr.
The storage will hold approximately 330,000 Btu for domestic hot water usage. This allows one
boiler to fire for a period of approximately two hours within its efficient firing range to charge
the storage. The heat in the storage is then used to provide domestic hot water needs, until
the temperature drops to ~140oF and the system has to fire to charge it once more. Figure 14
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Biomass Prefeasibility Report Date: August 26, 2014 Klawock School District
FINAL Klawock, Alaska
WES Energy & Environment
Page 19 of 32
shows the potential coverage of the total combined load duration curve for the Main Building
and Gymnasium using the wood pellet system.
Figure 14 – Estimated Biomass System Coverage of Load Duration Curve
Note: The load duration curve model is based on local weather data and annual fuel delivery volumes provided by
Klawock City School District. Potential coverage of 98% is shown. Actual coverage will depend on management of
loads and the use of thermal storage. The system can be used as described in the text to cover approximately 100%
of the annual demand. Management of loads, the use of thermal storage, and operations will determine actual
biomass coverage.
Figure 14 shows 98% biomass coverage of the FY 2013 load duration curve for both buildings
combined. Three boilers operating as a cascading system with the use of thermal storage
would allow efficient operation throughout the range of heating loads expected for the Main
Building and Gymnasium combined. Actual coverage will vary depending on weather
conditions, peak demands, equipment operation schedules, and periods when the boilers are
shut down for maintenance. This report assumes 95% coverage of fuel oil usage for estimating
the potential fuel use and savings for the Main Building and Gymnasium combined.
4.2.2 Option 2b : 500,000 Btu/hr Dry Fuel System
Option 2b would interconnect the Gymnasium with the Main Building boiler plant as described
in Option 2a and use a 500,000 Btu/hr dry fuel system with 1,000 gallons of hot water thermal
storage. The dry fuel system location, fuel storage, and fuel handling arrangement would be
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Biomass Prefeasibility Report Date: August 26, 2014 Klawock School District
FINAL Klawock, Alaska
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Page 20 of 32
would be identical to Option 1b. The differences would be a larger, 500,000 Btu/hr boiler and
distribution piping interconnecting the Gymnasium. The estimated coverage of the combined
load duration curve for both buildings is shown in Figure 15.
Figure 15 – Estimated Biomass System Coverage of Load Duration Curve
Note: The load duration curve model is based on local weather data and annual fuel delivery volumes provided by
Klawock City School District. Potential coverage of 91% is shown. Actual coverage will depend on management of
loads and the use of thermal storage.
Figure 15 shows 91% coverage of the FY 2013 load duration curve using the dry fuel system.
The existing fuel oil system in the Main Building boiler room will supplement the biomass
system as needed. Actual coverage will vary depending on weather conditions, peak demands,
equipment operation schedules, and periods when the boilers are shut down for maintenance.
This report assumes 90% coverage for the dry wood chip system for estimating the potential
fuel use and savings for the Main Building and Gymnasium.
4.3 MODULAR BUILDINGS
The Modular Buildings consist of two side by side buildings that each have a #1 fuel oil fired
forced air furnace for space heating and one gallon domestic hot water heaters. There is not
enough room to locate wood fired boilers in the modular buildings, build an addition, or install
a containerized system with storage in the vicinity of the modular buildings. Because of this
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the Modular buildings are evaluated for interconnection with the heating system in the Main
Building if a wood fired system was installed.
All costs and savings for the Modular Building are estimated assuming that a wood fired system
is being installed for the Main Building. Insulated heating pipes would be installed from the
Main Building boiler room to the Modular Buildings and tie into the ductwork using hot water
coils. The fuel oil furnaces would remain for backup. Figure 15 shows the load duration curves
for all three buildings.
Figure 16 – Estimated Load Duration Curve for the Main Building, Gymnasium, & Modular Buildings
Note: The load duration curve model shows the estimated daily average heating demands for the Main Building,
Gymnasium, and Modular Buildings stacked on top of each other. The daily peak heating demand is represented
for all three buildings combined in yellow.
4.3.1 Option 3a : 570,000 Btu/hr Wood Pellet System
If the Modular Buildings were added to Option 2a, connecting the Main Building, Gymnasium,
and Modular Buildings to a district heating system, the recommended wood pellet system
would have 570,000 Btu/hr of capacity and 750 gallons of hot water thermal storage. The
biomass system would be located in the same location as Options 1a and 2a and hot water
distribution pipes would branch off from the pipes between the Main Building and Gymnasium.
Three 190,000 Btu/hour advanced combustion units and hot water boilers firing on wood
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Modular Average Heating Demand Daily Peak Heating Demand
Biomass Prefeasibility Report Date: August 26, 2014 Klawock School District
FINAL Klawock, Alaska
WES Energy & Environment
Page 22 of 32
pellets could be used with cascading operation. The rated operating range of the system would
be from ~0.06 to ~0.57 mmBtu/hr. The hot water thermal storage would allow the system to
meet a 1Ͳhr peak of ~0.66 mmBtu/hr and a 15 minute peak of ~0.93 mmBtu/hr.
The storage will hold approximately 330,000 Btu for domestic hot water usage. This allows one
boiler to fire for a period of approximately two hours within its efficient firing range to charge
the storage. The heat in the storage is then used to provide domestic hot water needs, until
the temperature drops to ~140oF and the system has to fire to charge it once more. Figure 17
shows the potential coverage of the total combined load duration curve for all three buildings
using the wood pellet system.
Figure 17 – Estimated Biomass System Coverage of Load Duration Curve
Note: The load duration curve model is based on local weather data and annual fuel delivery volumes provided by
Klawock City School District. Potential coverage of 98% is shown. Actual coverage will depend on management of
loads and the use of thermal storage. The system can be used as described in the text to cover approximately 100%
of the annual demand. Management of loads, the use of thermal storage, and operations will determine actual
biomass coverage.
Figure 17 shows 98% biomass coverage of the FY 2013 load duration curve for both buildings
combined. Three boilers operating as a cascading system with the use of thermal storage
would allow efficient operation throughout the range of heating loads expected for the Main
Building and Gymnasium combined. Actual coverage will vary depending on weather
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Biomass Prefeasibility Report Date: August 26, 2014 Klawock School District
FINAL Klawock, Alaska
WES Energy & Environment
Page 23 of 32
conditions, peak demands, equipment operation schedules, and periods when the boilers are
shut down for maintenance. This report assumes 95% coverage of fuel oil usage for estimating
the potential fuel use and savings for the Main Building, Gymnasium, and Modular Buildings
combined.
4.3.2 Option 3b : 500,000 Btu/hr Dry Fuel System
Option 3b would interconnect the Modular Buildings, Gymnasium, and Main Building boiler
plant as described in Option 3a and use a 500,000 Btu/hr dry fuel system with 1,000 gallons of
hot water thermal storage. The dry wood chip system location, fuel storage, and fuel handling
arrangement would be would be identical to Option 2b. The differences would be installing a
distribution piping branch from the pipe connecting the Gymnasium and Main Building to tie
into the furnaces in the modular buildings. The estimated coverage of the combined load
duration curves for all three buildings is shown in Figure 18.
Figure 18 – Estimated Biomass System Coverage of Load Duration Curve
Note: The load duration curve model is based on local weather data and annual fuel delivery volumes provided by
Klawock City School District. Potential coverage of 90% is shown. Actual coverage will depend on management of
loads and the use of thermal storage.
Figure 18 shows 90% coverage of the FY 2013 load duration curve using the dry fuel system.
The existing fuel oil system in the Main Building boiler room will supplement the biomass
system as needed. Actual coverage will vary depending on weather conditions, peak demands,
equipment operation schedules, and periods when the boilers are shut down for maintenance.
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Biomass Prefeasibility Report Date: August 26, 2014 Klawock School District
FINAL Klawock, Alaska
WES Energy & Environment
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This report assumes 90% coverage for the dry fuel system for estimating the potential fuel use
and savings for the Main Building and Gymnasium.
4.4 NATIVE ARTS BUILDING
The Native Arts Building is a modular building that uses a Toyo space heater. A wood fired
heating system would not be practical to tie into the existing heating system or cost effective
due to the small amount of oil use (400 gallons/year). The Klawock School District has
suggested that the Native Arts Building will be replaced in the near future and is therefore not
further considered in this study.
4.0 BENEFIT/COST ANALYSIS
The estimated capital costs for each Option are listed in Table 4.
Table 4 – Estimated Project Capital Costs
Option Estimated Capital Cost
1a – Main Building Wood Pellet System $297,781
1b – Main Building Dry Sawdust System $721,493
2a – Main Building & Gymnasium Wood Pellet System $420,929
2b – Main Building & Gymnasium Dry Sawdust System $858,556
3a – Main Building, Gymnasium, & Modular Buildings Wood Pellet System $573,994
3b – Main Building, Gymnasium, & Modular Buildings Dry Sawdust System $983,791
Project cost estimates are based on recent quotations and bids provided by boiler
manufacturers and recent bids for similar projects. These costs include the fuel storage and
handling system, biomass combustion unit, boiler, accessory equipment, installation,
integration with the existing heating and domestic hot water systems, professional fees, and
contingency. Tables showing the detailed cost breakdowns are found in Appendix B.
It is assumed that existing staff would coordinate deliveries, empty ash bins, and check on the
system. Ash removal costs have been estimated at $70 per ton of ash and $220 per container
delivery. Option 3b would generate the largest quantity of ash and would result in
approximately 4 cubic yards annually. Wood ash can be used as a direct replacement for lime
and costs for removal could be reduced if it is used as a soil amendment on school grounds or
other locations.
An increase in electricity use would occur from the circulation pumps and fuel handling system.
Electricity costs using a price of $0.23/ kWh have been estimated considering motors for pumps
and augers for the wood pellet system and the hydraulic system and screening for the dry fuel
system. Annual operation and maintenance (O&M) costs are estimated for each option and are
listed in Table 5.
Biomass Prefeasibility Report Date: August 26, 2014 Klawock School District
FINAL Klawock, Alaska
WES Energy & Environment
Page 25 of 32
Table 5 – Estimated Annual O&M Costs
Task Option 1a Option 1b Option 2a Option 2b Option 3a Option 3b
Electricity $2,450 $3,730 $3,650 $4,880 $4,810 $4,940
Ash Removal $410 $490 $500 $530 $500 $560
Annual Service $1,500 $2,000 $1,500 $2,000 $1,500 $2,000
Totals $4,360 $6,220 $5,650 $7,410 $6,810 $7,500
Annual operating savings are estimated considering fuel costs and O&M costs. Table 6 shows
the estimated annual operating savings for each option.
Table 6 – Estimated Annual Operating Savings
Option
Current
Annual Fuel
Oil Cost
Estimated
Annual
Biomass Cost
Estimated
Annual Fuel
Oil Cost with
Biomass
System
Estimated
Additional
Annual
O&M Costs
Estimated
Annual
Savings
1a – Main Building Wood Pellet
System $49,200 $34,320 $2,464 $4,360 $8,056
1b – Main Building Dry Sawdust
System $49,200 $14,520 $4,920 $6,220 $23,540
2a – Main Building & Gymnasium
Wood Pellet System $73,800 $53,130 $3,694 $5,650 $11,326
2b – Main Building & Gymnasium
Dry Sawdust System $73,800 $22,560 $7,380 $7,430 $36,430
3a – Main Building, Gymnasium, &
Modulars Wood Pellet System $80,360 $58,740 $4,022 $6,820 $10,778
3b – Main Building, Gymnasium, &
Modulars Dry Sawdust System $80,360 $24,960 $8,036 $7,530 $39,834
Note: Assumes dry sawdust is used for Options 1b, 2b, and 3b due to the energy cost advantage and wood pellets
for Options 1a, 2a, and 3a.
A benefits summary is listed in Table 7 showing the estimated capital cost, 1st year net
operating savings, simple payback, 20 year Net Present Value, and 20 Year Benefits to Cost
(B/C) ratio. A sensitivity analysis of estimated first year annual operating savings over a range
of biomass and oil costs are provided in Appendix D.
Biomass Prefeasibility Report Date: August 26, 2014 Klawock School District
FINAL Klawock, Alaska
WES Energy & Environment
Page 26 of 32
Table 7 – Cost and Benefit Summary
Option Estimated
Capital Cost
1st Year Net
Annual
Operating
Savings
Simple
Payback,
Years
20 Year Net
Present
Value
20 Year
B/C Ratio
1a – Main Building Wood Pellet
System $297,781 $8,056 37.0 ($115,801) 0.61
1b – Main Building Dry Sawdust
System $721,493 $23,540 30.6 ($240,194) 0.67
2a – Main Building & Gymnasium
Wood Pellet System $420,929 $11,326 37.2 ($162,675) 0.61
2b – Main Building & Gymnasium
Dry Sawdust System $858,556 $36,430 23.6 ($114,859) 0.87
3a – Main Building, Gymnasium, &
Modulars Wood Pellet System $573,994 $10,778 53.3 ($322,974) 0.44
3b – Main Building, Gymnasium, &
Modulars Dry Sawdust System $983,791 $39,834 24.7 ($170,769) 0.83
Notes:
1 – Net Annual Operating Savings include costs for wood fuel, supplemental fossil fuel, and operation &
maintenance (O&M) costs.
2 – 20 Year Net Present Value takes the present value of the operating savings over 20 years with annual inflations
of 3.3% for oil and 3.0% for remaining O&M costs and the initial capital outlay of the total project cost using a
discount rate of 3.0% as published in the “Energy Price Indices and Discount Factors for Life‐Cycle Cost Analysis ‐
2013”. A value greater than zero means that savings are greater than expenses over 20 years in the value of
today’s dollars.
3 – 20 Year Benefit/Cost (B/C) Ratio is calculated by dividing the present value of net annual operating savings over
a 20 year period with a discount rate of 3.0% by the Estimated Capital Cost. A value greater than 1 means the
benefits exceed the costs over a 20 year period.
A cash flow analysis was completed for financing the projects assuming a 20 year financing term
at a 4.0% interest rate. None of the Options had a positive first year cash flow after annual
payments. The detailed analyses are shown in Appendix C.
A 20 year Life Cycle Cost Analysis (LCCA) complying with the requirements for the Alaska
Department of Education & Early Development was conducted for the Options 2a and 2b since
they had the shortest simple payback. The spreadsheet is provided in Appendix E and the
results of the LCCA are listed in Table 8.
Biomass Prefeasibility Report Date: August 26, 2014 Klawock School District
FINAL Klawock, Alaska
WES Energy & Environment
Page 27 of 32
Table 8 – 20 Year Life Cycle Cost Analysis for Options 2a and 2b
Item
Alternate #1
(Using Oil
Boilers)
Alternate #2
(Option 2a)
Alternate #3
(Option 2b)
Initial Investment Cost $0 $420,929 $858,556
Operations Cost $1,097,958 $906,891 $526,212
Maintenance & Repair Cost $7,439 $22,316 $29,755
Replacement Cost $74,409 $0 $0
Residual Value $0 $0 $0
Total 20 Year Life Cycle Costs $1,179,806 $1,350,136 $1,414,522
Notes:
1 ‐ Values generated using the Alaska Department of Education & Early Development LCCA spreadsheet.
2 – Alternate #1 assumes the two oil boilers in the Main Building and one boiler in the Gymnasium will be replaced
in ten years.
The 20 year life cycle costs indicate that capital costs and maintenance costs for Options 2a and
2b outweigh the savings in operations costs. It is noted that a discount rate of 3.0% was used as
required by the Alaska Department of Education & Early Education. This model does not take
into consideration the high rates of fuel oil price inflation experienced in recent years and may
not represent the true costs of future operation for the fuel oil system. A sensitivity analysis
was completed comparing 20 year net present value for each option over a range of annual oil
inflation rates and 3.0% for remaining O&M costs. Table 9 shows the results of the 20 year net
present value sensitivity analysis.
Table 9 – 20 Year Net Present Value Sensitivity to Oil Inflation Rate
Option
20 Year NPV
with Oil
Inflation at
3.0% Annually
20 Year NPV
with Oil
Inflation at
3.3% Annually
20 Year NPV
with Oil
Inflation at
4.0% Annually
20 Year NPV
with Oil
Inflation at
6.8% Annually
1a – Main Building Wood Pellet
System ($141,356) ($115,801) ($52,572) $259,586
1b – Main Building Dry Sawdust
System ($264,405) ($240,194) ($180,287) $115,467
2a – Main Building & Gymnasium
Wood Pellet System ($201,008) ($162,675) ($67,828) $400,422
2b – Main Building & Gymnasium
Dry Sawdust System ($151,177) ($322,974) ($24,999) $418,632
3a – Main Building, Gymnasium, &
Modulars Wood Pellet System ($364,714) ($322,974) ($219,695) $290,180
3b – Main Building, Gymnasium, &
Modulars Dry Sawdust System ($210,315) ($170,769) ($72,921) $410,144
Note: Net Present Values are calculated using annual inflation rates of 3% for wood fuel and O&M costs, the
inflation rate for oil stated in the table, the initial capital cost, and a discount rate of 3%.
Table 10 lists the assumptions and values used to develop costs and savings in this study.
Biomass Prefeasibility Report Date: August 26, 2014 Klawock School District
FINAL Klawock, Alaska
WES Energy & Environment
Page 28 of 32
Table 10 – Assumptions and Values Used in the Report
Item Value and Unit Source
Main Building annual #1 fuel oil use 12,000 gallons Klawock City Schools
Gymnasium annual #1 fuel oil use 6,000 gallons Klawock City Schools
Modular Buildings annual #1 fuel oil use 1,600 gallons Klawock City Schools
Native Arts Building annual #1 fuel oil use 400 gallons Klawock City Schools
Option 1a portion of fuel oil replaced 95%WES E&E estimate
Option 1b portion of fuel oil replaced 90%WES E&E estimate
Option 2a portion of fuel oil replaced 95%WES E&E estimate
Option 2b portion of fuel oil replaced 90%WES E&E estimate
Option 3a portion of fuel oil replaced 95%WES E&E estimate
Option 3b portion of fuel oil replaced 90%WES E&E estimate
#1 Fuel oil heat content 134,000 Btu/gal WES E&E assumption
Dry wood chip moisture content wet basis 20%WES E&E assumption
Dry sawdust moisture content wet basis 20%WES E&E assumption
Wood pellet moisture content wet basis 8%WES E&E assumption
Dry wood chip high heating value 13.2 mmBtu/ton WES E&E assumption
Dry sawdust high heating value 13.2 mmBtu/ton WES E&E assumption
Wood pellet high heating value 15.2 mmBtu/ton WES E&E assumption
#1 Fuel oil boiler efficiency 80%WES E&E assumption
Dry sawdust/wood chip boiler efficiency (HHV)75%WES E&E assumption
Wood pellet boiler efficiency (HHV) 80%WES E&E assumption
#1 Fuel oil price $4.10/gallon Klawock City Schools
Electricity price $0.23/kWh Klawock City Schools
Dry wood chip price $260.00/ton Budget quote
Wood pellet price $330.00/ton Budget quote
Dry sawdust price $120.00/ton Budget quote
Discount rate 3.0%NISTIR 85Ͳ3273Ͳ28
#1 Fuel oil inflation rate 3.3%WES E&E assumption
Wood pellet inflation rate 3.0%WES E&E assumption
O&M inflation rate 3.0%WES E&E assumption
Dry sawdust inflation rate 3.0%WES E&E assumption
Biomass Prefeasibility Report Date: August 26, 2014 Klawock School District
FINAL Klawock, Alaska
WES Energy & Environment
Page 29 of 32
5.0 CONCLUSIONS & RECOMMENDATIONS
This study concludes that the Klawock City Schools can reduce annual operating costs for space
heating and domestic hot water heating by installing a high efficiency, low emission wood fired
heating system. Based on the current economics, capital costs may be too high for the school
district to justify proceeding with a project. The proposed systems will generate hot water to
offset 90% Ͳ 95% of the current fuel oil use for space heating and domestic hot water within
school buildings at capital costs ranging from ~$300,000 Ͳ ~$1,000,000 depending on the option
selected. This would provide Klawock City School District with net operating savings ranging
from ~$8,000 to ~$40,000 in the first year of operation. If 80% of the project costs were funded
through grants, the simple payback for School District funds would range from 8 Ͳ 10 years for
the proposed wood pellet options and 6 years or less for the proposed dry sawdust options.
Additional benefits that would be provided by a high efficiency, low emission wood fired system
include:
x Purchase of dried wood chips or dried sawdust will immediately impact the local
economy since the fuel is planned for production on Prince of Wales Island;
x Purchase of wood pellets will impact the regional economy, with pellet production
currently operational in Ketchikan, AK;
x Decreased dependence on imported oil by replacing 10,800 to 18,600 gallons of #1 fuel
oil with renewable biomass fuel;
x A hedge against volatility of the fossil fuel market;
As Klawock City Schools continues to pursue biomass energy options, WES Energy &
Environment recommends that the next level of evaluation includes detailed consideration of
the following items:
x Siting of the biomass plant and fuel storage.
x Biomass system capital costs based on detailed site investigations, initial plant layout
and design, and direct quotes from manufacturers.
x Alternative funding sources (low interest loans, grants, and incentives).
Biomass Prefeasibility Report Date: August 26, 2014 Klawock School District
FINAL Klawock, Alaska
WES Energy & Environment
Page 30 of 32
Source:
http://www.woodboilers.com/products/pelletͲ
boilers/frolingͲp4Ͳpellet.html
6.0 GENERAL BIOMASS TECHNOLOGY INFORMATION
This section describes technologies that can be used for efficiently using wood for space
heating and domestic hot water heating. Manufacturers of each technology are available both
domestically and abroad. A partial list of manufacturers is provided for technologies and does
not constitute an endorsement. Other manufacturers are available and individual
investigations should be completed prior to purchase. Local codes and regulations may require
modifications or additional components for compliance depending on the system considered.
High Efficiency Indoor Wood Pellet Boiler
High efficiency indoor wood pellet boilers utilize
premium wood pellets as a renewable biomass fuel
source for hot water space heating systems. Wood
pellets are automatically fed from an adjacent storage
hopper into the firebox based on heating demand.
Efficiencies can exceed 80% when coupled with a hot
water thermal storage system that allows the boiler to
operate at high fire to charge the hot water thermal
storage tank. Multiple boilers can be operated to
increase heating capacity. Equipment costs can vary
depending on the heating capacity required. Annual
savings can range from $3,000 to $6,000 per year based
on a facility using 5,000 gallons of #1 fuel oil per year at
current prices. Manual and automatic hopper loading is
available. Ash removal is manual. A partial list of
manufacturers include ACT Bioenergy, Froling, MESys,
Evo World, Windhager, Kedel, and Wood Master.
High Efficiency Indoor Cord Wood Boiler
High efficiency indoor cordwood boilers utilize split
cordwood as a renewable biomass fuel source for hot
water space heating systems. Efficiencies can exceed
70% when coupled with a hot water thermal storage
system that allows the cordwood boiler to operate at
high fire to charge the hot water thermal storage tank.
Equipment costs can range from $7,000 to $15,000 plus
installation. Annual savings can range from $1,800 to
$2,200 per year based on an average building using
1,500 gallons of #1 fuel oil per year at current prices.
Manual loading and ash removal are required. A partial
list of manufacturers include Wood Gun, Econoburn,
Froling, Windhager, and Wood Master.
Source:
http://www.woodboilers.com/product
s/woodboilers/froelingͲfhg.html
Biomass Prefeasibility Report Date: August 26, 2014 Klawock School District
FINAL Klawock, Alaska
WES Energy & Environment
Page 31 of 32
Source:
http://www.afsenergy.com/Biomass%20Energy.htm
Advanced Biomass Combustion Units and Boilers
Advanced biomass combustion units and boilers are
typically an engineered product capable of firing on
wood chips, saw mill residue, wood pellets, and saw
dust. Fuel is typically delivered in bulk semiͲtrailer
loads and automatically conveyed to the
combustion unit. Efficiencies can exceed 70% when
coupled with a hot water thermal storage system.
Emission controls are typically required to clean up
exhaust gasses. Capital costs are high and vary
depending on many factors. Annual fuel cost savings
can range from $100,000 to $120,000 per year
based on a facility using 50,000 gallons of #1 fuel oil
per year at current prices. The greater the fossil fuel
costs and usage the greater the savings to pay back
capital costs. A partial list of manufacturers include
Viessman, ACT Bioenergy, Froling, MESys, Evo
World, Wood Master, Messersmith Manufacturing,
AFS Energy Systems, Solagen, Wellons FEI, and Hurst.
Hot Water Thermal Storage System
Thermal storage tanks, also known as accumulator
tanks or buffer tanks, can raise the efficiency of hot
water heating systems firing on wood. Solid fuels
burn more efficiently at higher firing rates than at
lower rates or idle modes where the fuel smolders,
smokes, and wastes energy. Hot water thermal
storage allows the solid fuel boiler to fire efficiently
at full output to store the heat at elevated
temperatures in storage tanks. For optimum
operation a mixing valve is installed to blend cold
water returning from the facility with hot water
stored in the thermal storage tank. Hot water is sent
back to the facility at a temperature that is lower
than the storage tanks, providing heat storage and a
buffer for short periods of high demand. This
method of operation reduces: smoldering and
smoking from inefficient operation, fuel use,
creosote buildup, and the need for frequent stoking.
Source:
http://www.viessmannͲ
us.com/en/District_Heating/Products/dhw/Stor
age_Tanks.html
Biomass Prefeasibility Report Date: August 26, 2014 Klawock School District
FINAL Klawock, Alaska
WES Energy & Environment
Page 32 of 32
Source:
WES Energy & Environment File Photo
District Piping Systems
It can often be cost effective to connect multiple
buildings to one central wood fired heating plant.
Long runs of buried piping can be installed cost
effectively using preͲinsulated PEX piping. It is
important to use factory injected close cell foam
insulation with a High Density Polyethylene (HDPE)
insulation jacket to prevent the insulation from being
compromised from ground water or leaks. Pipe sizes
can range from 3/4” to 5” with roll lengths up to 600
feet. Pipe material costs can be more expensive than
traditional iron pipe, however installation costs can
be reduced due to longer runs between splices and
connections.
Biomass Prefeasibility Report Date: August 26, 2014 Klawock School District
FINAL Klawock, Alaska
WES Energy & Environment
Appendix A
Conceptual Drawings
SCALE
100'0'50' 100'
Klawock City School District
WESEEKlawock City SchoolKlawock, AKSite Plan
SCALE
50'0'25' 50'
Options 1A & 1B
Options 2A & 2BOptions 3A & 3B
New Boiler
System WESEEKlawock City SchoolKlawock, AKPiping Run Diagram
Hot Water Supply Pipe
Hot Water Return Pipe
Existing School
Packaged
Boiler UnitConcrete
Pad
Boiler
(Typ.)
Metering
Bin (Typ.)
Fuel Storage
Stack (Typ.)
Fuel Auger Fuel Hopper
Concrete
Pad
SCALE
5'0'2.5' 5'
Existing Roll
Up Door
WESEEKlawock City SchoolKlawock, AKOption 1A Plan ViewNote: This drawing is a conceptual plan view for the purposes
of showing a general biomass system arrangement. Equipment,
final sizing, and pressures will vary depending on the engineer,
manufacturer and contractor installing the biomass system.
To Existing
Heating System
500 Gallon
Thermal
Storage Tank
Boiler Protection Valve
Valve to be controlled to maintain
at least 140° to boilers.
VFD
TT
TI
Variable Frequency Drive
Temperature Transmitter
Pump
Three Way Mixing Valve
Legend
From Existing
Heating System
TT
TI
VFD
Temperature Indicator
TT
TI
To School
Boiler Room
From School
Boiler Room
150,000 Bth/hr
Biomass Boiler
150,000 Bth/hr
Biomass Boiler
From Load
To Load
Existing
943,000 Btu/hr
Fuel Oil Boiler
Existing
943,000 Btu/hr
Fuel Oil Boiler
WESEEKlawock City SchoolKlawock, AKOption 1A SchematicNote: This drawing is a conceptual schematic for the purposes
of showing a general biomass system arrangement. Equipment,
final sizing, and pressures will vary depending on the engineer,
manufacturer and contractor installing the biomass system.
Fuel Conveyor
Fuel
Auger
Overs Bin
BiomassBoilerMetering Bin
Existing School
SCALE
5'0'2.5' 5'
Existing Roll
Up Door
Stack
Retaining Wall
Fuel
Trailer
WESEEKlawock City SchoolKlawock, AKOption 1B Plan ViewNote: This drawing is a conceptual plan view for the purposes
of showing a general biomass system arrangement. Equipment,
final sizing, and pressures will vary depending on the engineer,
manufacturer and contractor installing the biomass system.
To Existing
Heating System
300,000 Btu/hr
Biomass Boiler
750 Gallon
Thermal
Storage Tank
VFD
TT
TI
Variable Frequency Drive
Temperature Transmitter
Pump
Three Way Mixing Valve
Legend
From Existing
Heating System
TT
TI
VFD
Temperature Indicator
TT
TI
To School
Boiler Room
From School
Boiler Room
From Load
To Load
Existing
943,000 Btu/hr
Fuel Oil Boiler
Existing
943,000 Btu/hr
Fuel Oil Boiler
Boiler Protection Valve
Valve to be controlled to maintain
at least 140° to boilers.WESEEKlawock City SchoolKlawock, AKOption 1B SchematicNote: This drawing is a conceptual schematic for the purposes
of showing a general biomass system arrangement. Equipment,
final sizing, and pressures will vary depending on the engineer,
manufacturer and contractor installing the biomass system.
Packaged
Boiler Unit
Boiler
(Typ.)
Metering
Bin (Typ.)
Fuel Storage
Stack (Typ.)
Fuel Auger Fuel Hopper
Concrete
Pad
Hot Water Supply Pipe
Hot Water Return Pipe
Existing School
SCALE
5'0'2.5' 5'
Existing Roll
Up Door
Concrete
Pad
WESEEKlawock City SchoolKlawock, AKOption 2A Plan ViewNote: This drawing is a conceptual plan view for the purposes
of showing a general biomass system arrangement. Equipment,
final sizing, and pressures will vary depending on the engineer,
manufacturer and contractor installing the biomass system.
To Existing
Heating System
750 Gallon
Thermal
Storage Tank
VFD
TT
TI
Variable Frequency Drive
Temperature Transmitter
Pump
Three Way Mixing Valve
Legend
From Existing
Heating System
TT
TI
VFD
Temperature Indicator
TT
TI
To School
Boiler Room
From School
Boiler Room
170,000 Btu/hr
Biomass Boiler
170,000 Btu/hr
Biomass Boiler
170,000 Btu/hr
Biomass Boiler
From Load
To Load
Existing
943,000 Btu/hr
Fuel Oil Boiler
Existing
943,000 Btu/hr
Fuel Oil Boiler
From Gym
To Gym
Boiler Protection Valve
Valve to be controlled to maintain
at least 140° to boilers.WESEEKlawock City SchoolKlawock, AKOption 2A SchematicNote: This drawing is a conceptual schematic for the purposes
of showing a general biomass system arrangement. Equipment,
final sizing, and pressures will vary depending on the engineer,
manufacturer and contractor installing the biomass system.
Fuel Conveyor
Fuel
Auger
Overs Bin
BiomassBoilerMetering Bin
Existing School
SCALE
5'0'2.5' 5'
Existing Roll
Up Door
Stack
Retaining Wall
Fuel
Trailer
WESEEKlawock City SchoolKlawock, AKOption 2B Plan ViewNote: This drawing is a conceptual plan view for the purposes
of showing a general biomass system arrangement. Equipment,
final sizing, and pressures will vary depending on the engineer,
manufacturer and contractor installing the biomass system.
To Existing
Heating System
500,000 Btu/hr
Biomass Boiler
1,000 Gallon
Thermal
Storage Tank
VFD
TT
TI
Variable Frequency Drive
Temperature Transmitter
Pump
Three Way Mixing Valve
Legend
From Existing
Heating System
TT
TI
VFD
Temperature Indicator
TT
TI
To School
Boiler Room
From School
Boiler Room
From School
Existing
943,000 Btu/hr
Fuel Oil Boiler
Existing
943,000 Btu/hr
Fuel Oil Boiler
From Gym
To Gym
To School
Boiler Protection Valve
Valve to be controlled to maintain
at least 140° to boilers.WESEEKlawock City SchoolKlawock, AKOption 2B SchematicNote: This drawing is a conceptual schematic for the purposes
of showing a general biomass system arrangement. Equipment,
final sizing, and pressures will vary depending on the engineer,
manufacturer and contractor installing the biomass system.
Packaged
Boiler UnitConcrete
Pad
Boiler
(Typ.)
Metering
Bin (Typ.)
Fuel Storage
Stack (Typ.)
Fuel Auger Fuel Hopper
Concrete
Pad
Hot Water Supply Pipe
Hot Water Return Pipe
Existing School
Existing Roll
Up Door
SCALE
5'0'2.5' 5'WESEEKlawock City SchoolKlawock, AKOption 3A Plan ViewNote: This drawing is a conceptual plan view for the purposes
of showing a general biomass system arrangement. Equipment,
final sizing, and pressures will vary depending on the engineer,
manufacturer and contractor installing the biomass system.
To Existing
Heating System
750 Gallon
Thermal
Storage Tank
VFD
TT
TI
Variable Frequency Drive
Temperature Transmitter
Pump
Three Way Mixing Valve
Legend
From Existing
Heating System
TT
TI
VFD
Temperature Indicator
TT
TI
To School
Boiler Room
From School
Boiler Room
190,000 Btu/hr
Biomass Boiler
190,000 Btu/hr
Biomass Boiler
190,000 Btu/hr
Biomass Boiler
Existing
943,000 Btu/hr
Fuel Oil Boiler
Existing
943,000 Btu/hr
Fuel Oil Boiler
To Gym And
Modular Buildings
To Gym And
Modular Buildings
From School
To School
Boiler Protection Valve
Valve to be controlled to maintain
at least 140° to boilers.WESEEKlawock City SchoolKlawock, AKOption 3A SchematicNote: This drawing is a conceptual schematic for the purposes
of showing a general biomass system arrangement. Equipment,
final sizing, and pressures will vary depending on the engineer,
manufacturer and contractor installing the biomass system.
Fuel Conveyor
Fuel
Auger
Overs Bin
Metering Bin
Existing School
SCALE
5'0'2.5' 5'
Existing Roll
Up Door
Retaining WallBiomassBoiler
Stack
Fuel
Trailer
WESEEKlawock City SchoolKlawock, AKOption 3B Plan ViewNote: This drawing is a conceptual plan view for the purposes
of showing a general biomass system arrangement. Equipment,
final sizing, and pressures will vary depending on the engineer,
manufacturer and contractor installing the biomass system.
To Existing
Heating System
500,000 Btu/hr
Biomass Boiler
1,000 Gallon
Thermal
Storage Tank
VFD
TT
TI
Variable Frequency Drive
Temperature Transmitter
Pump
Three Way Mixing Valve
Legend
From Existing
Heating System
TT
TI
VFD
Temperature Indicator
TT
TI
To School
Boiler Room
From School
Boiler Room
From School
To School
Existing
943,000 Btu/hr
Fuel Oil Boiler
Existing
943,000 Btu/hr
Fuel Oil Boiler
To Gym And
Modular Buildings
To Gym And
Modular Buildings
Boiler Protection Valve
Valve to be controlled to maintain
at least 140° to boilers.WESEEKlawock City SchoolKlawock, AKOption 3B SchematicNote: This drawing is a conceptual schematic for the purposes
of showing a general biomass system arrangement. Equipment,
final sizing, and pressures will vary depending on the engineer,
manufacturer and contractor installing the biomass system.
Biomass Prefeasibility Report Date: August 26, 2014 Klawock School District
FINAL Klawock, Alaska
WES Energy & Environment
Appendix B
Preliminary Capital Cost Estimates
Appendix B Klawock City Schools
Line Item Cost1&2
Two (2) Ͳ 150,000 Btu/hr wood pellet hot water boilers
containerized 120,000$
45 ton storage bin 15,000$
Storage bin site work 5,000$
Thermal storage 500 gal with insulation 15,000$
Interconnection with existing boiler room, pumps, installation 10,000$
Electrical 15,000$
Mechanical 10,000$
Distribution Piping, 120 linear feet @ $200/linear foot 24,000$
SubͲTotal 214,000$
Contractor Profit 10%21,400$
SubͲTotal 235,400$
Contingency 10%23,540$
SubͲTotal 258,940$
Profesional Services 15%38,841$
Total 297,781$
Notes:
4 Ͳ Estimate is based on competitive bidding.
Option 1a ‐ Conceptual Cost Estimate ‐ Main Building Wood Pellet Boilers
1 Ͳ The boiler system is to be provided in a containerized preͲpackaged system. Output range is from ~0.045 Ͳ
0.3 mmBtu/hr. Pricing is based on a twoͲboiler solution. There are multiple manufacturers that can provide
varying boiler sizes. Other boiler sizing combinations to meet a similar output range may also be selected.
3 Ͳ Professional Services includes permitting, legal, engineering, & project management. (Assumed that
2 Ͳ Assumes pipe route as shown. Connections should be evaluated in additional detail as the project moves
forward.
WES Energy & Environment
Appendix B Klawock City Schools
Line Item Value Units $/Unit Cost1&2
One (1) Ͳ 300,000 Btu/hr dry wood fuel boiler (sawdust, chips, pellets), containerized 120,000$
Two 30' length by 8' wide self unloading trailers, freight, hydraulic unit 140,000$
80,000$
Earth removal, retaining wall, concrete floor 40,000$
Stick frame unloading bin poured concrete floor, 120 ft2 @ $100/ft2 12,000$
Two hydraulic cylinders, scrapes, and embedment 30,000$
Thermal storage 750 gal with insulation 17,500$
Interconnection with existing boiler room, pumps, installation 10,000$
Electrical 25,000$
Mechanical 20,000$
Distribution Piping, 120 linear feet @ $200/linear foot 24,000$
SubͲTotal 518,500$
Contractor Profit 10%51,850$
SubͲTotal 570,350$
Contingency 10%57,035$
SubͲTotal 627,385$
Profesional Services 15%94,108$
Total 721,493$
Notes:
4 Ͳ Estimate is based on competitive bidding.
Option 1b ‐ Conceptual Cost Estimate ‐ Main Bulding Dry Fuel Boilers
1 Ͳ The boiler system is to be provided in a containerized preͲpackaged system. Output range is from ~0.09 Ͳ
0.3 mmBtu/hr. Pricing is based on a oneͲboiler solution. There are multiple manufacturers that can provide
varying boiler sizes. Other boiler sizing combinations to meet a similar output range may also be selected.
2 Ͳ Assumes pipe route as shown. Connections should be evaluated in additional detail as the project moves
forward.
3 Ͳ Professional Services includes permitting, legal, engineering, & project management. (Assumed that
minimal engineering is required.)
Material handling including vibrating conveyer, shaker screener, two metering bins and
conveyor augers
WES Energy Environment
Appendix B Klawock City Schools
Line Item Cost1&2
Three (3) Ͳ 170,000 Btu/hr wood pellet hot water boilers
containerized 140,000$
45 ton storage bin 15,000$
Storage bin site work 5,000$
Thermal storage 750 gal with insulation 17,500$
Interconnection with existing boiler room, pumps, installation 10,000$
Electrical 20,000$
Mechanical 15,000$
Distribution Piping, 400 linear feet @ $200/linear foot 80,000$
SubͲTotal 302,500$
Contractor Profit 10%30,250$
SubͲTotal 332,750$
Contingency 10%33,275$
SubͲTotal 366,025$
Profesional Services 15%54,904$
Total 420,929$
Notes:
4 Ͳ Estimate is based on competitive bidding.
Option 2a ‐ Conceptual Cost Estimate ‐ Main Building & Gymnasium
Wood Pellet Boilers
1 Ͳ The boiler system is to be provided in a containerized preͲpackaged system. Output range is from ~0.051 Ͳ
0.51 mmBtu/hr. Pricing is based on a threeͲboiler solution. There are multiple manufacturers that can
provide varying boiler sizes. Other boiler sizing combinations to meet a similar output range may also be
selected.
2 Ͳ Assumes pipe route as shown. Connections should be evaluated in additional detail as the project moves
forward.
3 Ͳ Professional Services includes permitting, legal, engineering, & project management. (Assumed that
WES Energy & Environment
Appendix B Klawock City Schools
Line Item Value Units $/Unit Cost1&2
One (1) Ͳ 500,000 Btu/hr dry wood fuel boiler (sawdust, chips, pellets), containerized 140,000$
Two 30' length by 8' wide self unloading trailers, freight, hydraulic unit 140,000$
80,000$
Earth removal, retaining wall, concrete floor 40,000$
Stick frame unloading bin poured concrete floor, 120 ft2 @ $100/ft2 12,000$
Two hydraulic cylinders, scrapes, and embedment 30,000$
Thermal storage, 1,000 gallon with insulation 20,000$
Interconnection with existing boiler room, pumps, installation 20,000$
Electrical 30,000$
Mechanical 25,000$
Distribution Piping, 400 linear feet @ $200/linear foot 80,000$
SubͲTotal 617,000$
Contractor Profit 10%61,700$
SubͲTotal 678,700$
Contingency 10%67,870$
SubͲTotal 746,570$
Profesional Services 15%111,986$
Total 858,556$
Notes:
4 Ͳ Estimate is based on competitive bidding.
Option 2b ‐ Conceptual Cost Estimate ‐ Main Bulding & Gymnasium
Dry Fuel Boilers
Material handling including vibrating conveyer, shaker screener, two metering bins and
conveyor augers
1 Ͳ The boiler system is to be provided in a containerized preͲpackaged system. Output range is from ~0.15 Ͳ
0.5 mmBtu/hr. Pricing is based on a oneͲboiler solution. There are multiple manufacturers that can provide
varying boiler sizes. Other boiler sizing combinations to meet a similar output range may also be selected.
2 Ͳ Assumes pipe route as shown. Connections should be evaluated in additional detail as the project moves
forward.
3 Ͳ Professional Services includes permitting, legal, engineering, & project management. (Assumed that
minimal engineering is required.)
WES Energy & Environment
Appendix B Klawock City Schools
Line Item Cost1&2
Three (3) Ͳ 190,000 Btu/hr wood pellet hot water boilers
containerized 150,000$
45 ton storage bin 15,000$
Storage bin site work 5,000$
Thermal storage 750 gal with insulation 17,500$
Interconnection with existing boiler room, pumps, installation 20,000$
Hot water coils, interconnection with Modular Building furnaces, installation 40,000$
Electrical 35,000$
Mechanical 20,000$
Distribution Piping, 550 linear feet @ $200/linear foot 110,000$
SubͲTotal 412,500$
Contractor Profit 10%41,250$
SubͲTotal 453,750$
Contingency 10%45,375$
SubͲTotal 499,125$
Profesional Services 15%74,869$
Total 573,994$
Notes:
4 Ͳ Estimate is based on competitive bidding.
Option 3a ‐ Conceptual Cost Estimate ‐ Main Building, Gymnasium, &
Modular Buildings Wood Pellet Boilers
1 Ͳ The boiler system is to be provided in a containerized preͲpackaged system. Output range is from ~0.051 Ͳ
0.57 mmBtu/hr. Pricing is based on a threeͲboiler solution. There are multiple manufacturers that can
provide varying boiler sizes. Other boiler sizing combinations to meet a similar output range may also be
selected.
2 Ͳ Assumes pipe route as shown. Connections should be evaluated in additional detail as the project moves
forward.
3 Ͳ Professional Services includes permitting, legal, engineering, & project management. (Assumed that
WES Energy & Environment
Appendix B Klawock City Schools
Line Item Value Units $/Unit Cost1&2
One (1) Ͳ 500,000 Btu/hr dry wood fuel boiler (sawdust, chips, pellets), containerized 140,000$
Two 30' length by 8' wide self unloading trailers, freight, hydraulic unit 140,000$
80,000$
Earth removal, retaining wall, concrete floor 40,000$
Stick frame unloading bin poured concrete floor, 120 ft2 @ $100/ft2 12,000$
Two hydraulic cylinders, scrapes, and embedment 30,000$
Thermal storage, 1,000 gallon with insulation 20,000$
Interconnection with Gym boiler room, pumps, installation 20,000$
Interconnection with Modular Furnaces, installation 40,000$
Electrical 45,000$
Mechanical 30,000$
Distribution Piping, 550 linear feet @ $200/linear foot 110,000$
SubͲTotal 707,000$
Contractor Profit 10%70,700$
SubͲTotal 777,700$
Contingency 10%77,770$
SubͲTotal 855,470$
Profesional Services 15%128,321$
Total 983,791$
Notes:
4 Ͳ Estimate is based on competitive bidding.
Option 3b ‐ Conceptual Cost Estimate ‐ Main Building, Gymnasium, &
Modular Buildings Dry Fuel Boilers
Material handling including vibrating conveyer, shaker screener, two metering bins and
conveyor augers
1 Ͳ The boiler system is to be provided in a containerized preͲpackaged system. Output range is from ~0.15 Ͳ
0.5 mmBtu/hr. Pricing is based on a oneͲboiler solution. There are multiple manufacturers that can provide
varying boiler sizes. Other boiler sizing combinations to meet a similar output range may also be selected.
2 Ͳ Assumes pipe route as shown. Connections should be evaluated in additional detail as the project moves
forward.
3 Ͳ Professional Services includes permitting, legal, engineering, & project management. (Assumed that
minimal engineering is required.)
WES Energy & Environment
Biomass Prefeasibility Report Date: August 26, 2014 Klawock School District
FINAL Klawock, Alaska
WES Energy & Environment
Appendix C
20 Year Financing at 4% APR Cash Flow Analysis
Appendix C Option 1a ‐ Main Building Wood Pellet Boilers
20 Year, 4% Financing
Klawock City Schools
Input Variables Value Units Year
#1 Fuel Oil
Cost, Current
System
Wood Pellet
Cost
#1 Fuel Oil
Cost, w/
Wood
System
Added
O&M Cost
Net
Operating
Savings
Annual
Financing
Payment
Net Cash
Flow
Present Value
of Cash Flow
Project Costs Financed 297,781 $149,200$ (34,320)$ (2,464)$ (4,360)$ 8,056$ (21,911)$ (13,855)$ (13,855)$
Financing Term 20 # years 2 50,824$ (35,350)$ (2,545)$ (4,491)$ 8,438$ (21,911)$ (13,473)$ (13,081)$
Financing Rate (apr)4.0% Percent 3 52,501$ (36,410)$ (2,629)$ (4,626)$ 8,836$ (21,911)$ (13,075)$ (12,325)$
Current #1 Fuel Oil Usage 12,000 gal 454,233$ (37,502)$ (2,716)$ (4,764)$ 9,250$ (21,911)$ (12,661)$ (11,586)$
Year 1 #1 Fuel Oil Average Price $4.10 $/gal 5 56,023$ (38,627)$ (2,806)$ (4,907)$ 9,683$ (21,911)$ (12,229)$ (10,865)$
Proposed Annual Wood Pellet Usage 104 tons/yr 6 57,872$ (39,786)$ (2,898)$ (5,054)$ 10,133$ (21,911)$ (11,779)$ (10,160)$
Year 1 Wood Pellet Purchase Price $330 $/ton 7 59,782$ (40,980)$ (2,994)$ (5,206)$ 10,602$ (21,911)$ (11,310)$ (9,472)$
Annual #1 Fuel Oil Usage w/ Wood System 601 gal/yr 8 61,754$ (42,209)$ (3,093)$ (5,362)$ 11,090$ (21,911)$ (10,821)$ (8,799)$
Fossil Fuel Inflation Rate (apr)3.3% Percent 9 63,792$ (43,476)$ (3,195)$ (5,523)$ 11,599$ (21,911)$ (10,313)$ (8,141)$
Wood Pellet Inflation Rate (apr)3.0% Percent 10 65,897$ (44,780)$ (3,300)$ (5,689)$ 12,128$ (21,911)$ (9,783)$ (7,498)$
O&M Inflation Rate 3.0% Percent 11 68,072$ (46,123)$ (3,409)$ (5,859)$ 12,680$ (21,911)$ (9,231)$ (6,869)$
Discount Rate (apr)3.0% Percent 12 70,318$ (47,507)$ (3,522)$ (6,035)$ 13,254$ (21,911)$ (8,657)$ (6,254)$
Added Annual O&M Costs for Biomass Plant 4,360$ $/yr 13 72,639$ (48,932)$ (3,638)$ (6,216)$ 13,852$ (21,911)$ (8,059)$ (5,652)$
14 75,036$ (50,400)$ (3,758)$ (6,403)$ 14,475$ (21,911)$ (7,436)$ (5,064)$
15 77,512$ (51,912)$ (3,882)$ (6,595)$ 15,123$ (21,911)$ (6,788)$ (4,488)$
16 80,070$ (53,469)$ (4,010)$ (6,793)$ 15,798$ (21,911)$ (6,114)$ (3,924)$
17 82,712$ (55,074)$ (4,143)$ (6,997)$ 16,500$ (21,911)$ (5,411)$ (3,372)$
18 85,442$ (56,726)$ (4,279)$ (7,206)$ 17,230$ (21,911)$ (4,681)$ (2,832)$
19 88,261$ (58,428)$ (4,420)$ (7,423)$ 17,991$ (21,911)$ (3,920)$ (2,303)$
20 91,174$ (60,180)$ (4,566)$ (7,645)$ 18,782$ (21,911)$ (3,129)$ (1,784)$
Present Value (148,324)$
WES Energy & Environment
Appendix C Option 1b ‐ Main Bulding Dry Fuel Boilers
20 Year, 4% Financing
Klawock City Schools
Input Variables Value Units Year
#1 Fuel Oil
Cost, Current
System
Dry Sawdust
Cost
#1 Fuel Oil
Cost, w/
Wood
System
Added
O&M Cost
Net
Operating
Savings
Annual
Financing
Payment
Net Cash
Flow
Present Value
of Cash Flow
Project Costs Financed 721,493 $149,200$ (14,520)$ (4,920)$ (6,220)$ 23,540$ (53,089)$ (29,549)$ (28,688)$
Financing Term 20 # years 2 50,824$ (14,956)$ (5,082)$ (6,407)$ 24,379$ (53,089)$ (28,710)$ (27,062)$
Financing Rate (apr)4.0% Percent 3 52,501$ (15,404)$ (5,250)$ (6,599)$ 25,248$ (53,089)$ (27,841)$ (25,479)$
Current #1 Fuel Oil Usage 12,000 gal 454,233$ (15,866)$ (5,423)$ (6,797)$ 26,147$ (53,089)$ (26,942)$ (23,938)$
Year 1 #1 Fuel Oil Average Price $4.10 $/gal 5 56,023$ (16,342)$ (5,602)$ (7,001)$ 27,078$ (53,089)$ (26,011)$ (22,437)$
Proposed Annual Dry Sawdust Usage 121 tons/yr 6 57,872$ (16,833)$ (5,787)$ (7,211)$ 28,041$ (53,089)$ (25,047)$ (20,977)$
Year 1 Dry Sawdust Purchase Price $120 $/ton 7 59,782$ (17,338)$ (5,978)$ (7,427)$ 29,039$ (53,089)$ (24,050)$ (19,555)$
Annual #1 Fuel Oil Usage w/ Wood System 1,200 gal/yr 8 61,754$ (17,858)$ (6,175)$ (7,650)$ 30,071$ (53,089)$ (23,017)$ (18,170)$
Fossil Fuel Inflation Rate (apr)3.3% Percent 9 63,792$ (18,394)$ (6,379)$ (7,879)$ 31,140$ (53,089)$ (21,949)$ (16,822)$
Sawdust Inflation Rate (apr)3.0% Percent 10 65,897$ (18,945)$ (6,590)$ (8,116)$ 32,247$ (53,089)$ (20,842)$ (15,508)$
O&M Inflation Rate 3.0% Percent 11 68,072$ (19,514)$ (6,807)$ (8,359)$ 33,392$ (53,089)$ (19,697)$ (14,229)$
Discount Rate (apr)3.0% Percent 12 70,318$ (20,099)$ (7,032)$ (8,610)$ 34,577$ (53,089)$ (18,511)$ (12,983)$
Added Annual O&M Costs for Biomass Plant 6,220$ $/yr 13 72,639$ (20,702)$ (7,264)$ (8,868)$ 35,805$ (53,089)$ (17,284)$ (11,770)$
14 75,036$ (21,323)$ (7,504)$ (9,134)$ 37,075$ (53,089)$ (16,014)$ (10,587)$
15 77,512$ (21,963)$ (7,751)$ (9,408)$ 38,390$ (53,089)$ (14,699)$ (9,435)$
16 80,070$ (22,622)$ (8,007)$ (9,691)$ 39,751$ (53,089)$ (13,338)$ (8,312)$
17 82,712$ (23,300)$ (8,271)$ (9,981)$ 41,159$ (53,089)$ (11,929)$ (7,217)$
18 85,442$ (23,999)$ (8,544)$ (10,281)$ 42,618$ (53,089)$ (10,471)$ (6,151)$
19 88,261$ (24,719)$ (8,826)$ (10,589)$ 44,127$ (53,089)$ (8,962)$ (5,111)$
20 91,174$ (25,461)$ (9,117)$ (10,907)$ 45,689$ (53,089)$ (7,400)$ (4,097)$
Present Value (308,527)$
WES Energy & Environment
Appendix C Option 2a ‐ Main Building & Gymnasium Wood Pellet Boilers
20 Year, 4% Financing
Klawock City Schools
Input Variables Value Units Year
#1 Fuel Oil
Cost, Current
System
Wood Pellet
Cost
#1 Fuel Oil
Cost, w/
Wood
System
Added
O&M Cost
Net
Operating
Savings
Annual
Financing
Payment
Net Cash
Flow
Present Value
of Cash Flow
Project Costs Financed 420,929 $ 1 73,800$ (53,130)$ (3,694)$ (5,650)$ 11,326$ (30,973)$ (19,647)$ (19,075)$
Financing Term 20 # years 2 76,235$ (54,724)$ (3,816)$ (5,820)$ 11,876$ (30,973)$ (19,097)$ (18,000)$
Financing Rate (apr)4.0% Percent 3 78,751$ (56,366)$ (3,942)$ (5,994)$ 12,450$ (30,973)$ (18,523)$ (16,951)$
Current #1 Fuel Oil Usage 18,000 gal 481,350$ (58,057)$ (4,072)$ (6,174)$ 13,047$ (30,973)$ (17,925)$ (15,926)$
Year 1 #1 Fuel Oil Average Price $4.10 $/gal 5 84,035$ (59,798)$ (4,206)$ (6,359)$ 13,671$ (30,973)$ (17,302)$ (14,925)$
Proposed Annual Wood Pellet Usage 161 tons/yr 6 86,808$ (61,592)$ (4,345)$ (6,550)$ 14,320$ (30,973)$ (16,652)$ (13,946)$
Year 1 Wood Pellet Purchase Price $330 $/ton 7 89,672$ (63,440)$ (4,489)$ (6,746)$ 14,997$ (30,973)$ (15,975)$ (12,989)$
Annual #1 Fuel Oil Usage w/ Wood System 901 gal/yr 8 92,631$ (65,343)$ (4,637)$ (6,949)$ 15,703$ (30,973)$ (15,270)$ (12,054)$
Fossil Fuel Inflation Rate (apr)3.3% Percent 9 95,688$ (67,303)$ (4,790)$ (7,157)$ 16,438$ (30,973)$ (14,535)$ (11,140)$
Wood Pellet Inflation Rate (apr)3.0% Percent 10 98,846$ (69,323)$ (4,948)$ (7,372)$ 17,204$ (30,973)$ (13,769)$ (10,245)$
O&M Inflation Rate 3.0% Percent 11 102,108$ (71,402)$ (5,111)$ (7,593)$ 18,001$ (30,973)$ (12,971)$ (9,371)$
Discount Rate (apr)3.0% Percent 12 105,478$ (73,544)$ (5,280)$ (7,821)$ 18,833$ (30,973)$ (12,140)$ (8,515)$
Added Annual O&M Costs for Biomass Plant 5,650$ $/yr 13 108,958$ (75,751)$ (5,454)$ (8,056)$ 19,698$ (30,973)$ (11,275)$ (7,677)$
14 112,554$ (78,023)$ (5,634)$ (8,297)$ 20,600$ (30,973)$ (10,373)$ (6,858)$
15 116,268$ (80,364)$ (5,820)$ (8,546)$ 21,538$ (30,973)$ (9,434)$ (6,056)$
16 120,105$ (82,775)$ (6,012)$ (8,803)$ 22,516$ (30,973)$ (8,457)$ (5,270)$
17 124,068$ (85,258)$ (6,210)$ (9,067)$ 23,534$ (30,973)$ (7,439)$ (4,501)$
18 128,163$ (87,816)$ (6,415)$ (9,339)$ 24,593$ (30,973)$ (6,380)$ (3,747)$
19 132,392$ (90,450)$ (6,627)$ (9,619)$ 25,696$ (30,973)$ (5,277)$ (3,009)$
20 136,761$ (93,164)$ (6,846)$ (9,907)$ 26,844$ (30,973)$ (4,128)$ (2,286)$
Present Value (202,542)$
WES Energy & Environment
Appendix C Option 2b ‐ Main Bulding & Gymnasium Dry Fuel Boilers
20 Year, 4% Financing
Klawock City Schools
Input Variables Value Units Year
#1 Fuel Oil
Cost, Current
System
Dry Sawdust
Cost
#1 Fuel Oil
Cost, w/
Wood
System
Added
O&M Cost
Net
Operating
Savings
Annual
Financing
Payment
Net Cash
Flow
Present Value
of Cash Flow
Project Costs Financed 858,556 $173,800$ (22,560)$ (7,380)$ (7,430)$ 36,430$ (63,174)$ (26,744)$ (25,965)$
Financing Term 20 # years 2 76,235$ (23,237)$ (7,624)$ (7,653)$ 37,722$ (63,174)$ (25,452)$ (23,991)$
Financing Rate (apr)4.0% Percent 3 78,751$ (23,934)$ (7,875)$ (7,882)$ 39,060$ (63,174)$ (24,114)$ (22,068)$
Current #1 Fuel Oil Usage 18,000 gal 481,350$ (24,652)$ (8,135)$ (8,119)$ 40,444$ (63,174)$ (22,730)$ (20,195)$
Year 1 #1 Fuel Oil Average Price $4.10 $/gal 5 84,035$ (25,391)$ (8,403)$ (8,363)$ 41,877$ (63,174)$ (21,297)$ (18,371)$
Proposed Annual Dry Sawdust Usage 188 tons/yr 6 86,808$ (26,153)$ (8,681)$ (8,613)$ 43,360$ (63,174)$ (19,814)$ (16,594)$
Year 1 Dry Sawdust Purchase Price $120 $/ton 7 89,672$ (26,938)$ (8,967)$ (8,872)$ 44,895$ (63,174)$ (18,279)$ (14,862)$
Annual #1 Fuel Oil Usage w/ Wood System 1,800 gal/yr 8 92,631$ (27,746)$ (9,263)$ (9,138)$ 46,484$ (63,174)$ (16,690)$ (13,175)$
Fossil Fuel Inflation Rate (apr)3.3% Percent 9 95,688$ (28,578)$ (9,569)$ (9,412)$ 48,129$ (63,174)$ (15,045)$ (11,531)$
Sawdust Inflation Rate (apr)3.0% Percent 10 98,846$ (29,436)$ (9,885)$ (9,694)$ 49,831$ (63,174)$ (13,343)$ (9,928)$
O&M Inflation Rate 3.0% Percent 11 102,108$ (30,319)$ (10,211)$ (9,985)$ 51,593$ (63,174)$ (11,581)$ (8,366)$
Discount Rate (apr)3.0% Percent 12 105,478$ (31,228)$ (10,548)$ (10,285)$ 53,417$ (63,174)$ (9,757)$ (6,844)$
Added Annual O&M Costs for Biomass Plant 7,430$ $/yr 13 108,958$ (32,165)$ (10,896)$ (10,593)$ 55,304$ (63,174)$ (7,870)$ (5,359)$
14 112,554$ (33,130)$ (11,255)$ (10,911)$ 57,257$ (63,174)$ (5,917)$ (3,912)$
15 116,268$ (34,124)$ (11,627)$ (11,239)$ 59,279$ (63,174)$ (3,895)$ (2,500)$
16 120,105$ (35,148)$ (12,011)$ (11,576)$ 61,371$ (63,174)$ (1,803)$ (1,124)$
17 124,068$ (36,202)$ (12,407)$ (11,923)$ 63,536$ (63,174)$ 362$ 219$
18 128,163$ (37,288)$ (12,816)$ (12,281)$ 65,778$ (63,174)$ 2,604$ 1,529$
19 132,392$ (38,407)$ (13,239)$ (12,649)$ 68,097$ (63,174)$ 4,923$ 2,807$
20 136,761$ (39,559)$ (13,676)$ (13,029)$ 70,497$ (63,174)$ 7,323$ 4,055$
Present Value (196,174)$
WES Energy & Environment
Appendix C Option 3a ‐ Main Building, Gymnasium, & Modular Buildings Wood Pellet Boilers
20 Year, 4% Financing
Klawock City Schools
Input Variables Value Units Year
#1 Fuel Oil
Cost, Current
System
Wood Pellet
Cost
#1 Fuel Oil
Cost, w/
Wood
System
Added
O&M Cost
Net
Operating
Savings
Annual
Financing
Payment
Net Cash
Flow
Present Value
of Cash Flow
Project Costs Financed 573,994 $ 1 80,360$ (58,740)$ (4,022)$ (6,820)$ 10,778$ (42,235)$ (31,458)$ (30,541)$
Financing Term 20 # years 2 83,012$ (60,502)$ (4,155)$ (7,025)$ 11,330$ (42,235)$ (30,905)$ (29,131)$
Financing Rate (apr)4.0% Percent 3 85,751$ (62,317)$ (4,292)$ (7,235)$ 11,907$ (42,235)$ (30,329)$ (27,755)$
Current #1 Fuel Oil Usage 19,600 gal 488,581$ (64,187)$ (4,434)$ (7,452)$ 12,508$ (42,235)$ (29,727)$ (26,412)$
Year 1 #1 Fuel Oil Average Price $4.10 $/gal 5 91,504$ (66,112)$ (4,580)$ (7,676)$ 13,136$ (42,235)$ (29,099)$ (25,101)$
Proposed Annual Wood Pellet Usage 178 tons/yr 6 94,524$ (68,096)$ (4,731)$ (7,906)$ 13,791$ (42,235)$ (28,445)$ (23,822)$
Year 1 Wood Pellet Purchase Price $330 $/ton 7 97,643$ (70,139)$ (4,887)$ (8,143)$ 14,474$ (42,235)$ (27,762)$ (22,573)$
Annual #1 Fuel Oil Usage w/ Wood System 981 gal/yr 8 100,865$ (72,243)$ (5,048)$ (8,388)$ 15,186$ (42,235)$ (27,049)$ (21,353)$
Fossil Fuel Inflation Rate (apr)3.3% Percent 9 104,194$ (74,410)$ (5,215)$ (8,639)$ 15,929$ (42,235)$ (26,306)$ (20,161)$
Wood Pellet Inflation Rate (apr)3.0% Percent 10 107,632$ (76,642)$ (5,387)$ (8,899)$ 16,704$ (42,235)$ (25,531)$ (18,998)$
O&M Inflation Rate 3.0% Percent 11 111,184$ (78,942)$ (5,565)$ (9,166)$ 17,512$ (42,235)$ (24,723)$ (17,861)$
Discount Rate (apr)3.0% Percent 12 114,853$ (81,310)$ (5,749)$ (9,440)$ 18,354$ (42,235)$ (23,881)$ (16,750)$
Added Annual O&M Costs for Biomass Plant 6,820$ $/yr 13 118,643$ (83,749)$ (5,938)$ (9,724)$ 19,232$ (42,235)$ (23,003)$ (15,664)$
14 122,559$ (86,262)$ (6,134)$ (10,015)$ 20,147$ (42,235)$ (22,088)$ (14,603)$
15 126,603$ (88,850)$ (6,337)$ (10,316)$ 21,101$ (42,235)$ (21,134)$ (13,565)$
16 130,781$ (91,515)$ (6,546)$ (10,625)$ 22,095$ (42,235)$ (20,141)$ (12,551)$
17 135,097$ (94,260)$ (6,762)$ (10,944)$ 23,131$ (42,235)$ (19,105)$ (11,559)$
18 139,555$ (97,088)$ (6,985)$ (11,272)$ 24,209$ (42,235)$ (18,026)$ (10,588)$
19 144,160$ (100,001)$ (7,215)$ (11,611)$ 25,333$ (42,235)$ (16,902)$ (9,639)$
20 148,918$ (103,001)$ (7,453)$ (11,959)$ 26,504$ (42,235)$ (15,731)$ (8,710)$
Present Value (377,337)$
WES Energy & Environment
Appendix C Option 3b ‐ Main Building, Gymnasium, & Modular Buildings Dry Fuel Boilers
20 Year, 4% Financing
Klawock City Schools
Input Variables Value Units Year
#1 Fuel Oil
Cost, Current
System
Dry Sawdust
Cost
#1 Fuel Oil
Cost, w/
Wood
System
Added
O&M Cost
Net
Operating
Savings
Annual
Financing
Payment
Net Cash
Flow
Present Value
of Cash Flow
Project Costs Financed 983,791 $180,360$ (24,960)$ (8,036)$ (7,530)$ 39,834$ (72,389)$ (32,555)$ (31,607)$
Financing Term 20 # years 2 83,012$ (25,709)$ (8,301)$ (7,756)$ 41,246$ (72,389)$ (31,143)$ (29,355)$
Financing Rate (apr)4.0% Percent 3 85,751$ (26,480)$ (8,575)$ (7,989)$ 42,708$ (72,389)$ (29,682)$ (27,163)$
Current #1 Fuel Oil Usage 19,600 gal 488,581$ (27,274)$ (8,858)$ (8,228)$ 44,220$ (72,389)$ (28,169)$ (25,028)$
Year 1 #1 Fuel Oil Average Price $4.10 $/gal 5 91,504$ (28,093)$ (9,150)$ (8,475)$ 45,786$ (72,389)$ (26,603)$ (22,948)$
Proposed Annual Dry Sawdust Usage 208 tons/yr 6 94,524$ (28,935)$ (9,452)$ (8,729)$ 47,407$ (72,389)$ (24,982)$ (20,922)$
Year 1 Dry Sawdust Purchase Price $120 $/ton 7 97,643$ (29,804)$ (9,764)$ (8,991)$ 49,084$ (72,389)$ (23,305)$ (18,949)$
Annual #1 Fuel Oil Usage w/ Wood System 1,960 gal/yr 8 100,865$ (30,698)$ (10,087)$ (9,261)$ 50,820$ (72,389)$ (21,569)$ (17,027)$
Fossil Fuel Inflation Rate (apr)3.3% Percent 9 104,194$ (31,619)$ (10,419)$ (9,539)$ 52,617$ (72,389)$ (19,772)$ (15,153)$
Sawdust Inflation Rate (apr)3.0% Percent 10 107,632$ (32,567)$ (10,763)$ (9,825)$ 54,477$ (72,389)$ (17,912)$ (13,328)$
O&M Inflation Rate 3.0% Percent 11 111,184$ (33,544)$ (11,118)$ (10,120)$ 56,402$ (72,389)$ (15,987)$ (11,549)$
Discount Rate (apr)3.0% Percent 12 114,853$ (34,550)$ (11,485)$ (10,423)$ 58,394$ (72,389)$ (13,995)$ (9,816)$
Added Annual O&M Costs for Biomass Plant 7,530$ $/yr 13 118,643$ (35,587)$ (11,864)$ (10,736)$ 60,456$ (72,389)$ (11,933)$ (8,126)$
14 122,559$ (36,655)$ (12,256)$ (11,058)$ 62,590$ (72,389)$ (9,799)$ (6,478)$
15 126,603$ (37,754)$ (12,660)$ (11,390)$ 64,799$ (72,389)$ (7,590)$ (4,872)$
16 130,781$ (38,887)$ (13,078)$ (11,731)$ 67,085$ (72,389)$ (5,304)$ (3,306)$
17 135,097$ (40,053)$ (13,510)$ (12,083)$ 69,450$ (72,389)$ (2,939)$ (1,778)$
18 139,555$ (41,255)$ (13,955)$ (12,446)$ 71,898$ (72,389)$ (491)$ (288)$
19 144,160$ (42,493)$ (14,416)$ (12,819)$ 74,432$ (72,389)$ 2,043$ 1,165$
20 148,918$ (43,768)$ (14,892)$ (13,204)$ 77,054$ (72,389)$ 4,665$ 2,583$
Present Value (263,944)$
WES Energy & Environment
Biomass Prefeasibility Report Date: August 26, 2014 Klawock School District
FINAL Klawock, Alaska
WES Energy & Environment
Appendix D
Sensitivity Analysis of Estimated Annual Operating Savings
to Oil and Biomass Fuel Prices
Appendix D Option 1a ‐ Main Building Wood Pellet Boilers
Sensitivity Analysis of 1st Year Operating Savings to Fuel Costs
Klawock City Schools
8,056$ $3.50 $3.75 $4.00 $4.10 $4.25 $4.50 $4.75 $5.00
$225 $12,137 $14,986 $17,836 $18,976 $20,686 $23,536 $26,385 $29,235
$250 $9,537 $12,386 $15,236 $16,376 $18,086 $20,936 $23,785 $26,635
$275 $6,937 $9,786 $12,636 $13,776 $15,486 $18,336 $21,185 $24,035
$300 $4,337 $7,186 $10,036 $11,176 $12,886 $15,736 $18,585 $21,435
$330 $1,217 $4,066 $6,916 $8,056 $9,766 $12,616 $15,465 $18,315
$350 ($864) $1,986 $4,836 $5,976 $7,686 $10,536 $13,385 $16,235
$375 ($3,464) ($614) $2,236 $3,376 $5,086 $7,936 $10,785 $13,635
*Note: Excludes financing costs.
Price of Fuel Oil per Gallon
Price of Wood Pellets per TonWES Energy & Environment
Appendix D Option 1b ‐ Main Bulding Dry Fuel Boilers
Sensitivity Analysis of 1st Year Operating Savings to Fuel Costs
Klawock City Schools
23,540$ $3.50 $3.75 $4.00 $4.10 $4.25 $4.50 $4.75 $5.00
$25 $28,555 $31,255 $33,955 $35,035 $36,655 $39,355 $42,055 $44,755
$50 $25,530 $28,230 $30,930 $32,010 $33,630 $36,330 $39,030 $41,730
$75 $22,505 $25,205 $27,905 $28,985 $30,605 $33,305 $36,005 $38,705
$100 $19,480 $22,180 $24,880 $25,960 $27,580 $30,280 $32,980 $35,680
$120 $17,060 $19,760 $22,460 $23,540 $25,160 $27,860 $30,560 $33,260
$150 $13,430 $16,130 $18,830 $19,910 $21,530 $24,230 $26,930 $29,630
$175 $10,405 $13,105 $15,805 $16,885 $18,505 $21,205 $23,905 $26,605
*Note: Excludes financing costs.
Price of Fuel Oil per Gallon
Price of Wood Pellets per TonWES Energy & Environment
Appendix D Option 2a ‐ Main Building & Gymnasium Wood Pellet Boilers
Sensitivity Analysis of 1st Year Operating Savings to Fuel Costs
Klawock City Schools
11,326$ $3.50 $3.75 $4.00 $4.10 $4.25 $4.50 $4.75 $5.00
$225 $17,972 $22,246 $26,521 $28,231 $30,796 $35,071 $39,345 $43,620
$250 $13,947 $18,221 $22,496 $24,206 $26,771 $31,046 $35,320 $39,595
$275 $9,922 $14,196 $18,471 $20,181 $22,746 $27,021 $31,295 $35,570
$300 $5,897 $10,171 $14,446 $16,156 $18,721 $22,996 $27,270 $31,545
$330 $1,067 $5,341 $9,616 $11,326 $13,891 $18,166 $22,440 $26,715
$350 ($2,154) $2,121 $6,396 $8,106 $10,671 $14,946 $19,220 $23,495
$375 ($6,179) ($1,904) $2,371 $4,081 $6,646 $10,921 $15,195 $19,470
*Note: Excludes financing costs.
Price of Fuel Oil per Gallon
Price of Wood Pellets ‐ per TonWES Energy & Environment
Appendix D Option 2b ‐ Main Bulding & Gymnasium Dry Fuel Boilers
Sensitivity Analysis of 1st Year Operating Savings to Fuel Costs
Klawock City Schools
36,430$ $3.50 $3.75 $4.00 $4.10 $4.25 $4.50 $4.75 $5.00
$25 $44,570 $48,620 $52,670 $54,290 $56,720 $60,770 $64,820 $68,870
$50 $39,870 $43,920 $47,970 $49,590 $52,020 $56,070 $60,120 $64,170
$75 $35,170 $39,220 $43,270 $44,890 $47,320 $51,370 $55,420 $59,470
$100 $30,470 $34,520 $38,570 $40,190 $42,620 $46,670 $50,720 $54,770
$120 $26,710 $30,760 $34,810 $36,430 $38,860 $42,910 $46,960 $51,010
$150 $21,070 $25,120 $29,170 $30,790 $33,220 $37,270 $41,320 $45,370
$175 $16,370 $20,420 $24,470 $26,090 $28,520 $32,570 $36,620 $40,670
*Note: Excludes financing costs.
Price of Fuel Oil per Gallon
Price of Wood Pellets ‐ per TonWES Energy & Environment
Appendix D Option 3a ‐ Main Building, Gymnasium, & Modular Buildings Wood Pellet Boilers
Sensitivity Analysis of 1st Year Operating Savings to Fuel Costs
Klawock City Schools
10,778$ $3.50 $3.75 $4.00 $4.10 $4.25 $4.50 $4.75 $5.00
$225 $17,972 $22,246 $26,521 $28,231 $30,796 $35,071 $39,345 $43,620
$250 $13,947 $18,221 $22,496 $24,206 $26,771 $31,046 $35,320 $39,595
$275 $9,922 $14,196 $18,471 $20,181 $22,746 $27,021 $31,295 $35,570
$300 $5,897 $10,171 $14,446 $16,156 $18,721 $22,996 $27,270 $31,545
$330 $1,067 $5,341 $9,616 $11,326 $13,891 $18,166 $22,440 $26,715
$350 ($2,154) $2,121 $6,396 $8,106 $10,671 $14,946 $19,220 $23,495
$375 ($6,179) ($1,904) $2,371 $4,081 $6,646 $10,921 $15,195 $19,470
*Note: Excludes financing costs.
Price of Fuel Oil per Gallon
Price of Wood Pellets ‐ per TonWES Energy & Environment
Appendix D Option 3b ‐ Main Building, Gymnasium, & Modular Buildings Dry Fuel Boilers
Sensitivity Analysis of 1st Year Operating Savings to Fuel Costs
Klawock City Schools
perating Sa $3.50 $3.75 $4.00 $4.10 $4.25 $4.50 $4.75 $5.00
$25 $44,570 $48,620 $52,670 $54,290 $56,720 $60,770 $64,820 $68,870
$50 $39,870 $43,920 $47,970 $49,590 $52,020 $56,070 $60,120 $64,170
$75 $35,170 $39,220 $43,270 $44,890 $47,320 $51,370 $55,420 $59,470
$100 $30,470 $34,520 $38,570 $40,190 $42,620 $46,670 $50,720 $54,770
$120 $26,710 $30,760 $34,810 $36,430 $38,860 $42,910 $46,960 $51,010
$150 $21,070 $25,120 $29,170 $30,790 $33,220 $37,270 $41,320 $45,370
$175 $16,370 $20,420 $24,470 $26,090 $28,520 $32,570 $36,620 $40,670
*Note: Excludes financing costs.
Price of Fuel Oil per Gallon
Price of Wood Pellets ‐ per TonWES Energy & Environment
Biomass Prefeasibility Report Date: August 26, 2014 Klawock School District
FINAL Klawock, Alaska
WES Energy & Environment
Appendix E
Alaska Department of Education & Early Development
20 Year Life Cycle Cost Analysis
Life Cycle Cost Analysis - Summary
District:Klawock City Schools
School:Main Building and Gymnasium
Project:Biomass Heating System
Project #:N/A
Study Period:20
Discount Rate:3.00%
Alternate #1 Alternate #2 Alternate #3
Initial Investment Cost $0 $420,929 $858,556
Operations Cost $1,097,958 $906,891 $526,212
Maintenance & Repair Cost $7,439 $22,316 $29,755
Replacement Cost $74,409 $0 $0
Residual Value $0 $0 $0
Total Life Cycle Cost $1,179,806 $1,350,136 $1,414,522
GSF of Project 43,780 GSF 43,780 GSF 43,780 GSF
Initial Cost/GSF $0.00 $9.61 $19.61
LCC/GSF $26.95 $30.84 $32.31
Life Cycle Costs of Project Alternatives
1 of 1
Life Cycle Cost Analysis - Alternate #1 (Existing Oil Boilers)
District:Klawock City Schools
School:Main Building and Gymnasium
Project:Biomass Heating System
Project #:N/A
GSF:43,780 GSF
Quantity Unit Unit Cost Total Cost Years Present Value
Initial Expenses
Initial Investment Cost (one time start-up costs)
Construction Management 1 LPSM $0 $0 0 $0
Land Acquisition 1 LPSM $0 $0 0 $0
Site Investigation 1 LPSM $0 $0 0 $0
Design Services 1 LPSM $0 $0 0 $0
Construction 1 LPSM $0 $0 0 $0
Equipment 1 LPSM $0 $0 0 $0
Technology 1 LPSM $0 $0 0 $0
Indirect/Administration 1 LPSM $0 $0 0 $0
Art 1 LPSM $0 $0 0 $0
Contingency 1 LPSM $0 $0 0 $0
Future Expenses
Operations Cost (annual costs)
Heating Fuel 18,000 GALS $4.10 $73,800 20 $1,097,958
Electricity 0 KWH $0.23 $0 20 $0
Water and Sewer 0 LPSM $0 $0 20 $0
Garbage Disposal 0 LPSM $490 $0 20 $0
Custodial 0 LPSM $0 $0 20 $0
Grounds 0 LPSM $0 $0 20 $0
Lease 0 LPSM $0 $0 20 $0
Insurance 0 LPSM $0 $0 20 $0
Other 0 LPSM $330 $0 20 $0
Maintenance & Repair Cost (upkeep costs…estimate on annual basis)
Site Improvements 0 LPSM $0 $0 20 $0
Site Utilities 0 LPSM $0 $0 20 $0
Foundation/Substructure 0 GSF $0.00 $0 20 $0
Superstructure 0 GSF $0.00 $0 20 $0
Exterior Wall Systems 0 EWSF $0.00 $0 20 $0
Exterior Windows 0 GLSF $0.00 $0 20 $0
Exterior Doors 0 LEAF $0.00 $0 20 $0
Roof Systems 0 RFSF $0.00 $0 20 $0
Interior Partitions 0 PTSF $0.00 $0 20 $0
Interior Doors 0 LEAF $0.00 $0 20 $0
Interior Floor Finishes 0 FFSF $0.00 $0 20 $0
Interior Wall Finishes 0 WFSF $0.00 $0 20 $0
Interior Ceiling Finishes 0 CFSF $0.00 $0 20 $0
Interior Specialities 0 GSF $0.00 $0 20 $0
Conveying Systems 0 LPSM $0 $0 20 $0
Plumbing Piping 0 GSF $0.00 $0 20 $0
Plumbing Fixtures 0 FIXT $0.00 $0 20 $0
Fire Protection Systems 0 GSF $0.00 $0 20 $0
HVAC Distribution 0 GSF $0.00 $0 20 $0
HVAC Equipment 1 LPSM $500 $500 20 $7,439
HVAC Controls 0 GSF $0.00 $0 20 $0
Special Mechanical Systems 0 GSF $0.00 $0 20 $0
1 of 3
Life Cycle Cost Analysis - Alternate #1 (Existing Oil Boilers)
District:Klawock City Schools
School:Main Building and Gymnasium
Project:Biomass Heating System
Project #:N/A
GSF:43,780 GSF
Quantity Unit Unit Cost Total Cost Years Present Value
Electrical Service/Generation 0 LPSM $0 $0 20 $0
Electrical Distribution 0 GSF $0.00 $0 20 $0
Electrical Lighting 0 GSF $0.00 $0 20 $0
Special Electrical Systems 0 GSF $0.00 $0 20 $0
Equipment & Furnishings 0 LPSM $1,500 $0 20 $0
Other 0 LPSM $0 $0 20 $0
Replacement Cost (scheduled replacement of building system or component)
Site Improvements 0 LPSM $0 $0 1 $0
Site Utilities 0 LPSM $0 $0 1 $0
Foundation/Substructure 0 GSF $0.00 $0 1 $0
Superstructure 0 GSF $0.00 $0 1 $0
Exterior Wall Systems 0 EWSF $0.00 $0 1 $0
Exterior Windows 0 GLSF $0.00 $0 1 $0
Exterior Doors 0 LEAF $0.00 $0 1 $0
Roof Systems 0 RFSF $0.00 $0 1 $0
Interior Partitions 0 PTSF $0.00 $0 1 $0
Interior Doors 0 LEAF $0.00 $0 1 $0
Interior Floor Finishes 0 FFSF $0.00 $0 1 $0
Interior Wall Finishes 0 WFSF $0.00 $0 1 $0
Interior Ceiling Finishes 0 CFSF $0.00 $0 1 $0
Interior Specialities 0 GSF $0.00 $0 1 $0
Conveying Systems 0 LPSM $0 $0 1 $0
Plumbing Piping 0 GSF $0.00 $0 1 $0
Plumbing Fixtures 0 FIXT $0.00 $0 1 $0
Fire Protection Systems 0 GSF $0.00 $0 1 $0
HVAC Distribution 0 GSF $0.00 $0 1 $0
HVAC Equipment 1 LPSM $100,000 $100,000 10 $74,409
HVAC Controls 0 GSF $0.00 $0 1 $0
Special Mechanical Systems 0 GSF $0.00 $0 1 $0
Electrical Service/Generation 0 LPSM $0 $0 1 $0
Electrical Distribution 0 GSF $0.00 $0 1 $0
Electrical Lighting 0 GSF $0.00 $0 1 $0
Special Electrical Systems 0 GSF $0.00 $0 1 $0
Equipment & Furnishings 0 LPSM $0 $0 1 $0
Other 0 LPSM $0 $0 1 $0
Residual Value (value of facility at end of study period)
Site Improvements 0 LPSM $0 $0 1 $0
Site Utilities 0 LPSM $0 $0 1 $0
Foundation/Substructure 0 GSF $0.00 $0 1 $0
Superstructure 0 GSF $0.00 $0 1 $0
Exterior Wall Systems 0 EWSF $0.00 $0 1 $0
Exterior Windows 0 GLSF $0.00 $0 1 $0
Exterior Doors 0 LEAF $0.00 $0 1 $0
Roof Systems 0 RFSF $0.00 $0 1 $0
Interior Partitions 0 PTSF $0.00 $0 1 $0
Interior Doors 0 LEAF $0.00 $0 1 $0
Interior Floor Finishes 0 FFSF $0.00 $0 1 $0
Interior Wall Finishes 0 WFSF $0.00 $0 1 $0
Interior Ceiling Finishes 0 CFSF $0.00 $0 1 $0
Interior Specialities 0 GSF $0.00 $0 1 $0
2 of 3
Life Cycle Cost Analysis - Alternate #1 (Existing Oil Boilers)
District:Klawock City Schools
School:Main Building and Gymnasium
Project:Biomass Heating System
Project #:N/A
GSF:43,780 GSF
Quantity Unit Unit Cost Total Cost Years Present Value
Conveying Systems 0 LPSM $0 $0 1 $0
Plumbing Piping 0 GSF $0.00 $0 1 $0
Plumbing Fixtures 0 FIXT $0.00 $0 1 $0
Fire Protection Systems 0 GSF $0.00 $0 1 $0
HVAC Distribution 0 GSF $0.00 $0 1 $0
HVAC Equipment 1 LPSM $50,000 $50,000 1 $0
HVAC Controls 0 GSF $0.00 $0 1 $0
Special Mechanical Systems 0 GSF $0.00 $0 1 $0
Electrical Service/Generation 0 LPSM $0 $0 1 $0
Electrical Distribution 0 GSF $0.00 $0 1 $0
Electrical Lighting 0 GSF $0.00 $0 1 $0
Special Electrical Systems 0 GSF $0.00 $0 1 $0
Equipment & Furnishings 0 LPSM $0 $0 1 $0
Other 0 LPSM $0 $0 1 $0
Total Life Cycle of Alternate #1 $1,179,806
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Life Cycle Cost Analysis - Alternate #2 (Opt. 2a Wood Pellet System)
District:Klawock City Schools
School:Main Building and Gymnasium
Project:Biomass Heating System
Project #:N/A
GSF:43,780 GSF
Quantity Unit Unit Cost Total Cost Years Present Value
Initial Expenses
Initial Investment Cost (one time start-up costs)
Construction Management 1 LPSM $18,301 $18,301 0 $18,301
Land Acquisition 1 LPSM $0 $0 0 $0
Site Investigation 1 LPSM $0 $0 0 $0
Design Services 1 LPSM $36,603 $36,603 0 $36,603
Construction 1 LPSM $80,250 $80,250 0 $80,250
Equipment 1 LPSM $252,500 $252,500 0 $252,500
Technology 1 LPSM $0 $0 0 $0
Indirect/Administration 1 LPSM $0 $0 0 $0
Art 1 LPSM $0 $0 0 $0
Contingency 1 LPSM $33,275 $33,275 0 $33,275
Future Expenses
Operations Cost (annual costs)
Heating Fuel 901 GALS $4.10 $3,694 20 $54,959
Electricity 15,840 KWH $0.23 $3,643 20 $54,202
Water and Sewer 0 LPSM $0 $0 20 $0
Garbage Disposal 1 LPSM $490 $490 20 $7,290
Custodial 0 LPSM $0 $0 20 $0
Grounds 0 LPSM $0 $0 20 $0
Lease 0 LPSM $0 $0 20 $0
Insurance 0 LPSM $0 $0 20 $0
Other 161 LPSM $330 $53,130 20 $790,440
Maintenance & Repair Cost (upkeep costs…estimate on annual basis)
Site Improvements 1 LPSM $0 $0 20 $0
Site Utilities 1 LPSM $0 $0 20 $0
Foundation/Substructure 43,780 GSF $0.00 $0 20 $0
Superstructure 43,780 GSF $0.00 $0 20 $0
Exterior Wall Systems 1 EWSF $0.00 $0 20 $0
Exterior Windows 1 GLSF $0.00 $0 20 $0
Exterior Doors 1 LEAF $0.00 $0 20 $0
Roof Systems 1 RFSF $0.00 $0 20 $0
Interior Partitions 1 PTSF $0.00 $0 20 $0
Interior Doors 1 LEAF $0.00 $0 20 $0
Interior Floor Finishes 1 FFSF $0.00 $0 20 $0
Interior Wall Finishes 1 WFSF $0.00 $0 20 $0
Interior Ceiling Finishes 1 CFSF $0.00 $0 20 $0
Interior Specialities 43,780 GSF $0.00 $0 20 $0
Conveying Systems 1 LPSM $0 $0 20 $0
Plumbing Piping 43,780 GSF $0.00 $0 20 $0
Plumbing Fixtures 1 FIXT $0.00 $0 20 $0
Fire Protection Systems 43,780 GSF $0.00 $0 20 $0
HVAC Distribution 43,780 GSF $0.00 $0 20 $0
1 of 3
Life Cycle Cost Analysis - Alternate #2 (Opt. 2a Wood Pellet System)
District:Klawock City Schools
School:Main Building and Gymnasium
Project:Biomass Heating System
Project #:N/A
GSF:43,780 GSF
Quantity Unit Unit Cost Total Cost Years Present Value
HVAC Equipment 1 LPSM $0 $0 20 $0
HVAC Controls 43,780 GSF $0.00 $0 20 $0
Special Mechanical Systems 43,780 GSF $0.00 $0 20 $0
Electrical Service/Generation 1 LPSM $0 $0 20 $0
Electrical Distribution 43,780 GSF $0.00 $0 20 $0
Electrical Lighting 43,780 GSF $0.00 $0 20 $0
Special Electrical Systems 43,780 GSF $0.00 $0 20 $0
Equipment & Furnishings 1 LPSM $1,500 $1,500 20 $22,316
Other 1 LPSM $0 $0 20 $0
Replacement Cost (scheduled replacement of building system or component)
Site Improvements 1 LPSM $0 $0 1 $0
Site Utilities 1 LPSM $0 $0 1 $0
Foundation/Substructure 43,780 GSF $0.00 $0 1 $0
Superstructure 43,780 GSF $0.00 $0 1 $0
Exterior Wall Systems 1 EWSF $0.00 $0 1 $0
Exterior Windows 1 GLSF $0.00 $0 1 $0
Exterior Doors 1 LEAF $0.00 $0 1 $0
Roof Systems 1 RFSF $0.00 $0 1 $0
Interior Partitions 1 PTSF $0.00 $0 1 $0
Interior Doors 1 LEAF $0.00 $0 1 $0
Interior Floor Finishes 1 FFSF $0.00 $0 1 $0
Interior Wall Finishes 1 WFSF $0.00 $0 1 $0
Interior Ceiling Finishes 1 CFSF $0.00 $0 1 $0
Interior Specialities 43,780 GSF $0.00 $0 1 $0
Conveying Systems 1 LPSM $0 $0 1 $0
Plumbing Piping 43,780 GSF $0.00 $0 1 $0
Plumbing Fixtures 1 FIXT $0.00 $0 1 $0
Fire Protection Systems 43,780 GSF $0.00 $0 1 $0
HVAC Distribution 43,780 GSF $0.00 $0 1 $0
HVAC Equipment 1 LPSM $0 $0 1 $0
HVAC Controls 43,780 GSF $0.00 $0 1 $0
Special Mechanical Systems 43,780 GSF $0.00 $0 1 $0
Electrical Service/Generation 1 LPSM $0 $0 1 $0
Electrical Distribution 43,780 GSF $0.00 $0 1 $0
Electrical Lighting 43,780 GSF $0.00 $0 1 $0
Special Electrical Systems 43,780 GSF $0.00 $0 1 $0
Equipment & Furnishings 1 LPSM $0 $0 1 $0
Other 1 LPSM $0 $0 1 $0
Residual Value (value of facility at end of study period)
Site Improvements 1 LPSM $0 $0 1 $0
Site Utilities 1 LPSM $0 $0 1 $0
Foundation/Substructure 43,780 GSF $0.00 $0 1 $0
Superstructure 43,780 GSF $0.00 $0 1 $0
Exterior Wall Systems 1 EWSF $0.00 $0 1 $0
Exterior Windows 1 GLSF $0.00 $0 1 $0
Exterior Doors 1 LEAF $0.00 $0 1 $0
Roof Systems 1 RFSF $0.00 $0 1 $0
Interior Partitions 1 PTSF $0.00 $0 1 $0
2 of 3
Life Cycle Cost Analysis - Alternate #2 (Opt. 2a Wood Pellet System)
District:Klawock City Schools
School:Main Building and Gymnasium
Project:Biomass Heating System
Project #:N/A
GSF:43,780 GSF
Quantity Unit Unit Cost Total Cost Years Present Value
Interior Doors 1 LEAF $0.00 $0 1 $0
Interior Floor Finishes 1 FFSF $0.00 $0 1 $0
Interior Wall Finishes 1 WFSF $0.00 $0 1 $0
Interior Ceiling Finishes 1 CFSF $0.00 $0 1 $0
Interior Specialities 43,780 GSF $0.00 $0 1 $0
Conveying Systems 1 LPSM $0 $0 1 $0
Plumbing Piping 43,780 GSF $0.00 $0 1 $0
Plumbing Fixtures 1 FIXT $0.00 $0 1 $0
Fire Protection Systems 43,780 GSF $0.00 $0 1 $0
HVAC Distribution 43,780 GSF $0.00 $0 1 $0
HVAC Equipment 1 LPSM $0 $0 1 $0
HVAC Controls 43,780 GSF $0.00 $0 1 $0
Special Mechanical Systems 43,780 GSF $0.00 $0 1 $0
Electrical Service/Generation 1 LPSM $0 $0 1 $0
Electrical Distribution 43,780 GSF $0.00 $0 1 $0
Electrical Lighting 43,780 GSF $0.00 $0 1 $0
Special Electrical Systems 43,780 GSF $0.00 $0 1 $0
Equipment & Furnishings 1 LPSM $0 $0 1 $0
Other 1 LPSM $0 $0 1 $0
Total Life Cycle of Alternate #1 $1,350,136
3 of 3
Life Cycle Cost Analysis - Alternate #3 (Opt. 2b Dry Fuel System)
District:Klawock City Schools
School:Main Building and Gymnasium
Project:Biomass Heating System
Project #:N/A
GSF:43,780 GSF
Quantity Unit Unit Cost Total Cost Years Present Value
Initial Expenses
Initial Investment Cost (one time start-up costs)
Construction Management 1 LPSM $37,329 $37,329 0 $37,329
Land Acquisition 1 LPSM $0 $0 0 $0
Site Investigation 1 LPSM $0 $0 0 $0
Design Services 1 LPSM $74,657 $74,657 0 $74,657
Construction 1 LPSM $176,700 $176,700 0 $176,700
Equipment 1 LPSM $502,000 $502,000 0 $502,000
Technology 1 LPSM $0 $0 0 $0
Indirect/Administration 1 LPSM $0 $0 0 $0
Art 1 LPSM $0 $0 0 $0
Contingency 1 LPSM $67,870 $67,870 0 $67,870
Future Expenses
Operations Cost (annual costs)
Heating Fuel 1,800 GALS $4.10 $7,380 20 $109,796
Electricity 21,216 KWH $0.23 $4,880 20 $72,597
Water and Sewer 1 LPSM $0 $0 20 $0
Garbage Disposal 1 LPSM $550 $550 20 $8,183
Custodial 1 LPSM $0 $0 20 $0
Grounds 1 LPSM $0 $0 20 $0
Lease 1 LPSM $0 $0 20 $0
Insurance 1 LPSM $0 $0 20 $0
Other 188 LPSM $120 $22,560 20 $335,636
Maintenance & Repair Cost (upkeep costs…estimate on annual basis)
Site Improvements 1 LPSM $0 $0 20 $0
Site Utilities 1 LPSM $0 $0 20 $0
Foundation/Substructure 43,780 GSF $0.00 $0 20 $0
Superstructure 43,780 GSF $0.00 $0 20 $0
Exterior Wall Systems 1 EWSF $0.00 $0 20 $0
Exterior Windows 1 GLSF $0.00 $0 20 $0
Exterior Doors 1 LEAF $0.00 $0 20 $0
Roof Systems 1 RFSF $0.00 $0 20 $0
Interior Partitions 1 PTSF $0.00 $0 20 $0
Interior Doors 1 LEAF $0.00 $0 20 $0
Interior Floor Finishes 1 FFSF $0.00 $0 20 $0
Interior Wall Finishes 1 WFSF $0.00 $0 20 $0
Interior Ceiling Finishes 1 CFSF $0.00 $0 20 $0
Interior Specialities 43,780 GSF $0.00 $0 20 $0
Conveying Systems 1 LPSM $0 $0 20 $0
Plumbing Piping 43,780 GSF $0.00 $0 20 $0
Plumbing Fixtures 1 FIXT $0.00 $0 20 $0
Fire Protection Systems 43,780 GSF $0.00 $0 20 $0
HVAC Distribution 43,780 GSF $0.00 $0 20 $0
1 of 3
Life Cycle Cost Analysis - Alternate #3 (Opt. 2b Dry Fuel System)
District:Klawock City Schools
School:Main Building and Gymnasium
Project:Biomass Heating System
Project #:N/A
GSF:43,780 GSF
Quantity Unit Unit Cost Total Cost Years Present Value
HVAC Equipment 1 LPSM $0 $0 20 $0
HVAC Controls 43,780 GSF $0.00 $0 20 $0
Special Mechanical Systems 43,780 GSF $0.00 $0 20 $0
Electrical Service/Generation 1 LPSM $0 $0 20 $0
Electrical Distribution 43,780 GSF $0.00 $0 20 $0
Electrical Lighting 43,780 GSF $0.00 $0 20 $0
Special Electrical Systems 43,780 GSF $0.00 $0 20 $0
Equipment & Furnishings 1 LPSM $2,000 $2,000 20 $29,755
Other 1 LPSM $0 $0 20 $0
Replacement Cost (scheduled replacement of building system or component)
Site Improvements 1 LPSM $0 $0 1 $0
Site Utilities 1 LPSM $0 $0 1 $0
Foundation/Substructure 43,780 GSF $0.00 $0 1 $0
Superstructure 43,780 GSF $0.00 $0 1 $0
Exterior Wall Systems 1 EWSF $0.00 $0 1 $0
Exterior Windows 1 GLSF $0.00 $0 1 $0
Exterior Doors 1 LEAF $0.00 $0 1 $0
Roof Systems 1 RFSF $0.00 $0 1 $0
Interior Partitions 1 PTSF $0.00 $0 1 $0
Interior Doors 1 LEAF $0.00 $0 1 $0
Interior Floor Finishes 1 FFSF $0.00 $0 1 $0
Interior Wall Finishes 1 WFSF $0.00 $0 1 $0
Interior Ceiling Finishes 1 CFSF $0.00 $0 1 $0
Interior Specialities 43,780 GSF $0.00 $0 1 $0
Conveying Systems 1 LPSM $0 $0 1 $0
Plumbing Piping 43,780 GSF $0.00 $0 1 $0
Plumbing Fixtures 1 FIXT $0.00 $0 1 $0
Fire Protection Systems 43,780 GSF $0.00 $0 1 $0
HVAC Distribution 43,780 GSF $0.00 $0 1 $0
HVAC Equipment 1 LPSM $0 $0 1 $0
HVAC Controls 43,780 GSF $0.00 $0 1 $0
Special Mechanical Systems 43,780 GSF $0.00 $0 1 $0
Electrical Service/Generation 1 LPSM $0 $0 1 $0
Electrical Distribution 43,780 GSF $0.00 $0 1 $0
Electrical Lighting 43,780 GSF $0.00 $0 1 $0
Special Electrical Systems 43,780 GSF $0.00 $0 1 $0
Equipment & Furnishings 1 LPSM $0 $0 1 $0
Other 1 LPSM $0 $0 1 $0
Residual Value (value of facility at end of study period)
Site Improvements 1 LPSM $0 1 $0
Site Utilities 1 LPSM $0 $0 1 $0
Foundation/Substructure 43,780 GSF $0.00 $0 1 $0
Superstructure 43,780 GSF $0.00 $0 1 $0
Exterior Wall Systems 1 EWSF $0.00 $0 1 $0
Exterior Windows 1 GLSF $0.00 $0 1 $0
Exterior Doors 1 LEAF $0.00 $0 1 $0
Roof Systems 1 RFSF $0.00 $0 1 $0
Interior Partitions 1 PTSF $0.00 $0 1 $0
2 of 3
Life Cycle Cost Analysis - Alternate #3 (Opt. 2b Dry Fuel System)
District:Klawock City Schools
School:Main Building and Gymnasium
Project:Biomass Heating System
Project #:N/A
GSF:43,780 GSF
Quantity Unit Unit Cost Total Cost Years Present Value
Interior Doors 1 LEAF $0.00 $0 1 $0
Interior Floor Finishes 1 FFSF $0.00 $0 1 $0
Interior Wall Finishes 1 WFSF $0.00 $0 1 $0
Interior Ceiling Finishes 1 CFSF $0.00 $0 1 $0
Interior Specialities 43,780 GSF $0.00 $0 1 $0
Conveying Systems 1 LPSM $0 $0 1 $0
Plumbing Piping 43,780 GSF $0.00 $0 1 $0
Plumbing Fixtures 1 FIXT $0.00 $0 1 $0
Fire Protection Systems 43,780 GSF $0.00 $0 1 $0
HVAC Distribution 43,780 GSF $0.00 $0 1 $0
HVAC Equipment 1 LPSM $0 $0 1 $0
HVAC Controls 43,780 GSF $0.00 $0 1 $0
Special Mechanical Systems 43,780 GSF $0.00 $0 1 $0
Electrical Service/Generation 1 LPSM $0 $0 1 $0
Electrical Distribution 43,780 GSF $0.00 $0 1 $0
Electrical Lighting 43,780 GSF $0.00 $0 1 $0
Special Electrical Systems 43,780 GSF $0.00 $0 1 $0
Equipment & Furnishings 1 LPSM $0 $0 1 $0
Other 1 LPSM $0 $0 1 $0
Total Life Cycle of Alternate #1 $1,414,522
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