HomeMy WebLinkAboutDEHE-#243880-v1-Chuathbaluk_AEA_Round_7_Final_ApplicationCITY OF CHUATHBALUK
Heat Recovery
City of Chuathbaluk
ALASKA ENERGY AUTHORITY-AEA 2014-006 RENEWABLE ENERGY
GRANT APPLICATION
APPLICATION CONTENTS
• AEA HEAT PROJECT APPLICATION-SECTION 1 THROUGH 9
• AUTHORIZED SIGNERS -SECTION 1 0
• ADDITIONAL DOCUMENTATION AND CERTIFICATION -SECTION 11
• RESUMES
• LETTERS OF SUPPORT
• INVOICES
• GOVERNING BODY RESOLUTION
• FEASIBILITY STUDY
Renewable Energy Fund Round VII
Grant Application -Heat Projects
Application Forms and Instructions
This instruction page and the following grant application constitutes the Grant Application Form
for Round VII 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 is available online at: www.akenergyauthority.org/REFund7.html.
• If you need technical assistance filling out this application, please contact Shawn Calfa,
the Alaska Energy Authority Grant Administrator at (907) 771-3031 or at
scalfa@aidea.o rg.
• If you are applying for grants for more than one project, provide separate application
forms for each project.
• Multiple phases for the same project may be submitted as one application.
• If you are applying for grant funding for more than one phase of a project, provide
milestones and grant budget for each phase of the project.
• In order to ensure that grants provide sufficient benefit to the public, AEA may limit
recommendations for grants to preliminary development phases in accordance with 3
ACC 107.605(1).
• If some work has already been completed on your project and you are requesting
funding for an advanced phase, submit information sufficient to demonstrate that the
preceding phases are completed and funding for an advanced phase is warranted.
• If you have additional information or reports you would like the Authority to consider in
reviewing your application, either provide an electronic version of the document with
your submission or reference a web link where it can be downloaded or reviewed.
• In the sections below, please enter responses in the spaces provided, often under the
section heading . You may add additional rows or space to the form to provide sufficient
space for the information, or attach additional sheets if needed.
REMINDER:
• Alaska Energy Authority is subject to the Public Records Act AS 40.25, and materials
submitted to the Authority may be subject to disclosure requirements under the act if no
statutory exemptions apply.
• All applications received will be posted on the Authority web site after final
recommendations are made to the legislature.
· • In accordance with 3 AAC 107.630 (b) Applicants may request trade secrets or
proprietary company data be kept confidential subject to review and approval by the
Authority. If you want information is to be kept confidential the applicant must:
o Request the information be kept confidential.
o Clearly identify the information that is the trade secret or proprietary in their
application.
o Receive concurrence from the Authority that the information will be kept
confidential. If the Authority determines it is not confidential it will be treated as a
public record in accordance with AS 40.25 or returned to the applicant upon
request.
AEA 2014-006 Application Page 1 of 20 7/2/2011
Renewable Energy Fund Round VII
Grant Application -Heat Projects
SECTION 1 -APPLICANT INFORMATION
Name : City of Chuathbaluk
Type of Entity: Local Government Fiscal Year End
Tax ID # 92-0043415 Tax Status: __ For-profit __ Non-profit ....lL_Government (check one)
Date of last financial statement audit:
Mailing Address Physical Address
P 0 Box CHU
Chuathbaluk, AK 99557 Chuathbaluk, AK 99557
Telephone Fax Email
907-467-4115 907-467-4180 Coc99557@yahoo.com
1.1 APPLICANT POINT OF CONTACT I GRANTS MANAGER
Name Title
Carl Remley Manager , Energy Projects, ANTHC,DEHE
Mailing Address
3900 Ambassador Drive Suite 301, Anchorage AK 99508
Telephone Fax Email
907-729-3543 907-729-404 7 cremley@anthc.org
1.2 APPLICANT MINIMUM REQUIREMENTS
Please check as appropriate. If you do not to meet the minimum applicant requirements, your
application will be rejected.
1.2.1 As an Applicant, we are: (put an X in the appropriate box)
An electric utility holding a certificate of public convenience and necessity under AS
42.05, or
An independent power producer'Tn .. accordance with 3 AACf07:695 (a) (1 ), or """"""""" ""'' ...... ""'"
A local government, or
X A governmental entity (which includes tribal councils and housing authorities);
Yes 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 Yes or No in the box)
Yes 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).
Yes 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
httQ://www.akenerg~authorit~.orglveeQ/Grant-TemQiate.Qdf. (Any exceptions
should be clearly noted and submitted with the application.)
Yes 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.
AEA 2014-006 Grant Application Page 2 of 20 7/2/2013
Renewable Energy Fund Round VII
Grant Application -Heat Proj ects
SECTION 2-PROJECT SUMMARY
This section is intended to be no more than a 2-3 page overview of your project.
2.1 Project Title-(Provide a 4 to 7 word title for your project). Type in space below.
Chuathbaluk Water System Heat Recovery
2.2 Project Location -
Include the physical location of your project and name(s) of the community or communities that will
benefit from your project in the subsections below.
2.2.1 Location of Project-Latitude and longitude, street address, or community name.
Latitude and longitude coordinates may be 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 Google
search window above the map in a format as follows: 61.195676.-149.898663. If you would like assistance obtaining
this information please contact AEA at 907-771-3031.
Chuathbaluk 61.528424,-165.586452
2.2.2 Community benefiting -Name(s} of the community or communities that will be the
beneficiaries of the project.
Chuathbaluk, AK
2.3 PROJECT TYPE
Put X in boxes as appropriate
2.3.1 Renewable Resource Type
Wind to Heat Biomass or Biofuels
Hydro to Heat Solar Thermal
X Heat Recovery from Existing Sources Heat Pumps
Other (Describe)
2.3.2 Proposed Grant Funded Phase(s} for this Request (Check all that apply)
Pre-Construction Construction
I. Reconnaissance X Ill. Final Design and Permitting
II. Feasibility and Conceptual Design X IV. Construction and Commissioning
2.4 PROJECT DESCRIPTION
Provide a brief one paragraph description of the proposed heat project.
This project will provide waste heat from the existing electrical power plant to the water system .
The fuel oil savings to the community water plant is projected to be 1 ,900 gallons of heating oil
per year. For more detailed information, see the attached Chuathbaluk, Alaska 2013 Heat
Recovery Feasibility Study.
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Renewable Energy Fund Round VII
Grant Application -Heat Projects
2.5 PROJECT BENEFIT
Briefly discuss the financial and public benefits that will result from this heat project, (such as reduced fuel
costs, lower energy costs, local jobs created etc.)
The water system benefits all the residents of Chuathbaluk, AK; however, the cost of energy to
operate the facility threatens its sustainability. This project is expected to reduce the fuel oil
usage of the facility by 1,900 gallons per year, nearly offsetting the total fuel oil usage.
2.6 PROJECT BUDGET OVERVIEW
Briefly discuss the amount of funds needed, the anticipated sources of funds, and the nature and source
of other contributions to the project.
Based on the attached 2012 Heat Recovery Feasibility Study, the cost to deploy this project is
estimated at $225,660 (2015 dollars). As allocated in the budget sheets of Section 9, $21,218 is
required for design work and $178,645 is needed for the construction. In addition, the Alaska
Native Tribal Health Consortium (ANTHC) will provide an in-kind cost match of 3% or $6,770 in
the form of project and program management services.
2.7 COST AND BENEFIT SUMARY
Include a summary of grant request and your project's total costs and benefits below.
Grant Costs
(Summary of funds requested)
2.7.1 Grant Funds Requested in this application $225,660
2.7.2 Cash match to be provided $0
2.7.3 Total In-kind match to be provided (sum of lines below) $6,770
Biomass or Biofuel inventory on hand $0
Energy efficiency improvements to buildings to be $0
heated (within past 5 years or committed prior to
proposed project completion)
,,, -
Other In-Kind match to be provided --$6,770 ----···
2.7.4 Other grant funds to be provided $0
2.7.5 Other grant applications not yet approved $0
2.7.6 Total Grant Costs (sum of 2.7.1 through 2.7.4) $232,430
Project Costs & Benefits
(Summary of total project costs including work to date and future cost estimates to get to a fully
operational project)
2.7.7 Total Project Cost Summary from Cost Worksheet, Section $225,660
4.4.4, including estimates through construction.
2.7.8 Additional Performance Monitoring Equipment not covered $
by the project but required for the Grant Only applicable to
construction phase projects.
2.7.9 Estimated Direct Financial Benefit (Savings) $12,958
2.7.1 0 Other Public Benefit If you can calculate the benefit in terms $
of dollars please provide that number here and explain how you
calculated that number in Section 5 below.
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Renewable Energy Fund Round VII
Grant Application -Heat Projects
SECTION 3-PROJECT MANAGEMENT PLAN
Describe who will be responsible for managing the project and provide a plan for successfully
completing the project within the scope, schedule and budget proposed in the application.
3.1 Project Manager
Tell us who will be managing the project for the Grantee and include contact information, a
resume and references for the manager(s). In the electronic submittal, please submit resumes
as separate PDFs if the applicant would like those excluded from the web posting of this
application. If the applicant does not have a project manager indicate how you intend to solicit
project management support. If the applicant expects project management assistance from AEA
or another government entity, state that in this section.
ANTHC Energy Projects Manager Carl Remley has been an ANTHC employee since 2002. Mr.
Remley is responsible for both energy conservation and renewable energy projects. This
includes performing energy audits in public buildings in 40 rural Alaska villages, installing
energy conservation displays in all homes in 12 villages, evaluating heat recovery opportunities
in 10 villages, implementing heat recovery in several villages, and acting as the energy
coordinator for the Indian Health Service in Alaska.
Prior to that, Mr. Remley owned and operated an energy conservation consulting company for
22 years and was a design engineer in the aerospace industry for 10 years. Mr. Remley has a
Bachelor's Degree in Mechanical Engineering and a Master's Degree in Business
Administration. He is also both a Certified Energy Auditor and a Certified Energy Manager.
3.2 Project Schedule and Milestones
Please fill out form provided below. You may add additional rows as needed.
Milestones Tasks Start Date End Date
Project Planning Execution of Grant and Agreements 10/1/2014 11/1/2014
Conduct Kick-off Meeting 11/1/2014 11/1/2014
35 % design with Cost Estimate 11/1/2014 2/1/2015
Final Design
Complete 95 % Design with Cost Estimate 2/1/2015 5/1/2015
Construction Documents 5/1/2015 7/1/2015
Final Business Plan 5/1/2015 7/1/2015
Negotiated heat sales agreement 5/1/2015 7/1/2015
AEA Approves moving ahead to construction 7/1/2015 8/1/2015
Construction Phase Start
Pre-Const. meeting with Schedule and
cost estimate with ANTHC construction
department. 8/1/2015 8/1/2015
Material Procurement and Mobilization 8/1/2015 4/1/2016
On-site Construction 4/1/2016 6/1/2017
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Renewable Energy Fund Round VII
Grant Application -Heat Projects
Conduct periodic site visits
Conduct Substantial Completion
Inspection
Start-up and Testing
Startup and Testing
Clear Punch list Items
Project Close Out
3.3 Project Resources
AI A'f#M a
ENERGY AUTHORITY
4/1/2016 6/1/2017
6/1/2017 7/1/2017
7/1/2017 8/1/2017
8/1/2017 9/1/2017
9/1/2017 10/1/2017
Describe the personnel, contractors, accounting or bookkeeping personnel or firms,
equipment, and services you will use to accomplish the project. Include any partnerships
or commitments with other entities you have or anticipate will be needed to complete
your project. Describe any existing contracts and the selection process you may use for
major equipment purchases or contracts. Include brief resumes and references for
known, key personnel, contractors, and suppliers as an attachment to your application.
The project manager will be Carl Remley of ANTHC. He will be supported during the design
phase by Chong Park, ANTHC Lead Mechanical Engineer, and Dave Reed, ANTHC Lead
Electrical Engineer. To the extent possible, local labor will be used during construction. ANTHC
will use its purchasing and contracting resources for material procurement and delivery.
Resumes of all key personnel are attached to this application.
3.4 Project Communications
Discuss how you plan to monitor the project and keep the Authority informed of the status.
Please provide an alternative contact person and their contact information .
Written project progress reports will be provided to the AEA project manager as required by the
grant. Meetings will be conducted with ANTHC, the Village, and AEA to discuss the status of
this project. Regular coordination meetings will be held between AEA and ANTHC regarding all
projects.
3.5 Project Risk
Discuss potential problems and how you would address them.
In general, there are no technological or financial risks involved with the plan to utilize recovered
heat from the power plant to provide heat to the water system and water plant. Installing the
necessary heat exchangers, piping, pumps, and controls necessary for implementation has
been done many times before and proven effective for many years.
SECTION 4-PROJECT DESCRIPTION AND TASKS
• The level of information will vary according to phase(s) of the project you propose to
undertake with grant funds.
• If some work has already been completed on your project and you are requesting funding for
an advanced phase, submit information sufficient to demonstrate that the preceding phases
are satisfied and funding for an advanced phase is warranted.
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Renewable Energy Fund Round VII
Grant Application -Heat Projects
4.1 Proposed Energy Resource
Describe the potential extent/amount of the energy resource that is available.
Discuss 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.
The energy resource available is the heat from the water jackets of the power plant engines. This
heat significantly offsets much of the fuel oil required during the year as indicated by the attached
2013 Heat Recovery Feasibility Study.
The only realistic alternative to utilizing the recovered heat is to continue to burn an estimated
1 ,900 gallons of fuel oil to provide the heat required by the water system . The feasibility study
analyses are contained in the attached 2013 Heat Recovery Feasibility Study.
4.1.2 For Biomass Projects Only
Identify any wood inventory questions, such as :
• Ownership/Accessibility. Who owns the land and are their limitations and restrictions to
accessing the biomass resource?
• Inventory data. How much biomass is available on an annual basis and what types
(species) are there, if known?
4.2.1 Basic configuration of Existing Heating Energy System
Briefly discuss the basic configuration of the existing energy system. Include information about
the number, size, age , efficiency, and ty pe of gene ration .
A heat recovery utilization spreadsheet has been developed to estimate the recoverable heat
based on monthly total electric power production, engine heat rates, water system heating
demand, passive losses for power plant heat and piping, and arctic piping losses. The
spreadsheet utilizes assumed time-of-day variations for electric power production and heat
demand. Power generation data from AEA for fiscal year 2011 is used in the spreadsheet. The
estimated heat rejection rate for the lead power plant genset is used to estimate available
recovered heat. Heating degree-days for Chuathbaluk were utilized for this site. All arctic piping is
assumed to be routed below grade.
4.2.2 Existing Heating Energy Resources Used
Briefly discuss your understanding of the existing energy resources . Include a brief discussion of
any impa ct the proj ect may have on existing en e rgy infrastructure and resources.
The existing water treatment plant (WTP) is hydronically heated. The city reports fuel
consumption of 1,900 gallons/year. Approximately 1,400 gallons is used to heat the circulating
water lines and water storage tank (WST) and 400 to heat the building. The existing glycol heat
trace system can be used to thaw the circulating water system in the event of a freeze-up. It is not
in use at this time .
4.2.3 Existing Heating Energy Market
Discuss existing energy use and its market. Discuss impacts your project may have on energy
customers.
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Renewable Energy Fund Round VII
Grant Application -Heat Projects ~~ ENERGY AUTHORITY
All heating oil must be barged in during the summer months. The impact of this project will be to
reduce the overall use of oil by approximately 1 ,900 gallons per year. While this reduction will not
change the price of oil in Chuathbaluk, it will significantly reduce the community's consumption of
oil, replacing that consumption with jacket heat from the diesel engines.
4.3 Proposed System
Include information necessary to describe the system you are intending to develop and address
potential system design, land ownership, permits, energy efficiency and environmental issues.
4.3.1 System Design
Provide the following information for the proposed renewable energy system:
• A description of renewable energy technology specific to project location
• Optimum installed capacity
• Anticipated capacity factor
• Anticipated annual generation
• Anticipated barriers
• Basic integration concept
• Delivery methods
• Energy efficiency measures (building envelope)
The currently unused glycol heat trace system can be modified to recover heat from the power
plant and can be used to heat all three community circulating water lines and the WST. The glycol
heat trace system was not designed for heat recovery and will require new controls and
installation of new heat transfer equipment, including controls, additional piping, and a heat
exchanger for the WST. The heat recovery system captures jacket water heat generated by the
power plant that is typically rejected to the atmosphere by the radiators. The recovered heat is
transferred via below-grade arctic piping to the water system. The objective is to reduce the
consumption of expensive heating fuel by utilizing available recovered heat.
Hot engine coolant is piped through a plate heat exchanger located at the power plant. Heat is
transferred from the engine coolant to the recovered heat loop without mixing the fluids. Controls
at the power plant are used to prevent sub-cooling of the generator engines and associated
reduction of electric power production efficiency. The recovered heat fluid is pumped through
buried insulated pipe to the end-user facilities.
POWER PLANT TIE-IN
All heat recovery piping will be insulated with a minimum of 1.5-inch rubber foam insulation. All
valves will be either bronze ball valves or lug-style butterfly valves with seals compatible with
50/50 glycol/water mixtures at 200F. Air vents, thermometers, pressure gauges, drain valves, and
pressure relief valves will also be provided. Additional controls will be added, including a BTU
meter and heat injection pumps for coolant and recovered heat temperature control.
ARCTIC PIPING (Recovered Heat Loop)
The arctic piping is all preexisting except for approximately 50 feet to the power plant. It consists
of a 4-inch carrier pipe with a heat trace channel. Existing pumps at the water treatment plant will
circulate the system. The existing glycol expansion tank is dramatically undersized and will be
replaced with a larger tank to accommodate thermal expansion of the heat recovery fluid .
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Renewable Energy Fund Round VII
Grant Application -Heat Projects
AI frSWiA 7
ENERGY AUTHORITY
The recovered heat fluid will be a 50/50 Propylene Glycol/Water solution to provide freeze
protection to the piping .
END-USER BUILDING TIE-INS
The end-user building tie-in requires modification to the existing glycol heat trace piping in the
WTP to allow piping each circulation loop in series. The existing pumps were sized for series
piping, but the system was piped for parallel piping. This will require approximately 3 to 5 valves
and 10 to 80 feet of 1.5-inch pipe . A double wall shell and tube or double wall brazed plate heat
exchanger will be installed to allow heat addition to the WST. The maximum anticipated delivered
recovered heat supply temperature is about 180F. When there is insufficient recovered heat to
meet the water system heating load, the building heating system (boiler or heater) will fire and
add heat. Off-the-shelf controls will lock out the recovered heat system when there is insufficient
recovered heat available.
Typical indoor piping will be type L copper tube with solder joints. Isolation valves will be solder
end bronze ball valves or flanged butterfly valves. All piping will be insulated with a minimum of
1-inch insulation with an all-service jacket. Flexibility will be provided where required for thermal
expansion and differential movement. Air vents, thermometers, pressure gauges, drain valves,
and pressure relief valves will also be provided.
The WTP facility will also receive a BTU meter to provide recovered heat use totalization and
instantaneous use monitoring.
4.3.2 Land Ownership
Identify potential land ownership issues, including whether site owners have agreed to the project
or how you intend to approach land ownership obtain harvest contracts and access issues.
There are no apparent conflicts with rights-of-way for the arctic piping between the power plant
and the end-user buildings, as the route is entirely within existing road rights-of-way and on city
and power plant property.
4.3.3 Permits
Provide the following information as it may relate to permitting and how you intend to address
outstanding permit issues.
• List of applicable permits
• Anticipated permitting timeline
• Identify and discussion of potential barriers
A Heat Sales/Right-of-Entry Agreement will be required between Middle Kuskokwim Electric and
the City to define the parties' responsibilities, detail the cost of recovered heat, and authorize the
connection to the power plant heat recovery equipment.
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Renewable Energy Fund Round VII
Grant Application -Heat Projects
4.3.4 Environmental
A I frfiWilit s
ENERGY AUTHORITY
Address whether the following environmental and land use issues apply, and if so how they will
be addressed:
• Threatened or endangered species
• Habitat issues
• Wetlands and other protected areas
• Archaeological and historical resources
• Land development constraints
• Telecommunications interference
• Aviation considerations
• Visual, aesthetics impacts
• Identify and discuss other potential barriers
ANTHC will consider all potential environmental concerns associated with this project. ANTHC
has extensive experience using the comprehensive Indian Health Service (IHS) environmental
review procedures for conducting environmental analysis of all health and sanitation facilities
projects in all stages of development, as outlined in the IHS Environmental Review Manual issued
in January 2007.
4.4 Proposed New System Costs and Projected Revenues
(Total Estimated Costs and Projected Revenues)
The level of cost information provided will vary according to the phase of funding requested and
any previous work the applicant may have done on the project. Applicants must reference the
source of their cost data. For example: Applicants records or analysis, industry standards,
consultant or manufacturer's estimates.
4.4.1 Project Development Cost
Provide detailed project cost information based on your current knowledge and understanding of
the project. Cost information should include the following:
• Total anticipated project cost, and cost for this phase
• ·····Requested gmnHunding .,,,.
• Applicant matching funds -loans, capital contributions, in-kind
• Identification of other funding sources
• Projected capital cost of proposed renewable energy system
• Projected development cost of proposed renewable energy system
The total anticipated project cost is $232,430, including ANTHC's in-kind contribution. A detailed
construction cost estimate is contained in the attached 2013 Heat Recovery Feasibility Study. The
requested grant funding is $225,660. The remaining $6,770 is being contributed by ANTHC in the
form of project and program management services.
4.4.2 Project Operating and Maintenance Costs
Include anticipated O&M costs for new facilities constructed and how these would be funded by
the applicant.
(Note: Operational costs are not eligible for grant funds however grantees are required to meet
ongoing reporting requirements for the purpose of reporting impacts of projects on the
communities they serve.)
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Renewable Energy Fund Round VII
Grant Application -Heat Projects
As with all heat recovery systems, the operating cost will be minimal. The controls are automated
both at the power plant and at the water treatment plant. The most expensive components in the
heat recovery system are the heat exchangers, and they normally have a minimum 30-year life.
Minor maintenance costs will occur periodically, but they will be limited to valves, pumps, and
possibly some replacement glycol. Approximately $500 per year should be budgeted for
maintenance.
4.4.3 Heat Purchase/Sale
The heat purchase/sale information should include the following:
• Identification of potential energy buyer(s)/customer(s)
• Potential heat purchase/sales price -at a minimum indicate a price range
• Proposed rate of return from grant-funded project
A standard Heat Sales Agreement will be executed between the power company and the City of
Chuathbaluk. The agreement will define the terms and methods for heat sales. Typical heat sales
agreements charge end users the equivalent of one third of the cost of the fuel displaced. This
amount is much lower than the retail price of fuel in the village. A standard BTU meter will be
used to measure the amount of recovered heat used at the water treatment plant.
4.4.4 Project Cost Worksheet
Complete the cost worksheet form which provides summary information that will be considered in
evaluating the project.
Please fill out the form provided below and provide most recent heating fuel invoice that supports
the amount identified in "Project Benefits" subpart b below.
Renewable Energy Source
The Applicant should demonstrate that the renewable energy resource is available on a
sustainable basis.
.Afli]LH:il .. ave[§9€lf~?OUrce ayailability. Equivalent of 1 ,900 gallons diesel oil of surplus plant
heat
Unit depends on project type (e.g. windspeed, hydropower output, biomasss fuel)
Existing Heating Energy Generation and Usage
a) Basic configuration
i. Number of generators/boilers/other
ii. Rated capacity of generators/boilers/other
iii. Generator/boilers/other type
iv. Age of generators/boilers/other
v. Efficiency of generators/boilers/other
John Deere, 4045TF280
Fuel Oil Boilers in water treatment _plant
5+ years
74%
b) Annual O&M cost (if system is part of the Rail belt grid, leave this section blank)
i. Annual O&M cost for labor
ii. Annual O&M cost for non-labor $500 -------------------------------------------
c) Annual electricity production and fuel usage (fill in as applicable) (if system is part of the
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Renewable Energy Fund Round VII
Grant Application -Heat Projects
Railbelt grid, leave this section blank)
i. Electricity [kWh]
ii. Fuel usage
Diesel [gal] 1,900 gallons of number 1 fuel oil equivalent of surplus heat
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] 1,900 gallons of number 1 fuel oil equivalent of surplus
heat
ii. Electricity [kWh]
iii. Propane [gal or MMBtu]
iv . Coal [tons or MMBtu]
v. Wood [cords , green tons , dry tons]
vi. Other
Proposed System Design Capacity and Fuel Usage
(Include any projections for continued use of non-renewable fuels)
a) Proposed renewable capacity
(Wind, Hydro, Biomass, other)
[kW or MMBtu/hr]
Surplus waste heat from the power plant.
b) Proposed annual electricity or heat production (fill in as applicable)
L Electricity [kWh] ...... .
ii. Heat [MMBtu] 1 ,900 gallons of Number 1 fuel oil equivalent of surplus
heat
c) Proposed annual fuel usage (fill in as applicable)
i. Propane [gal or MMBtu]
ii. Coal [tons or MMBtu]
ii i. Wood or pellets [cords, green tons ,
dry tons]
iv. Other
Project Cost
a) Total capital cost of new system
b) Development cost
c) Annual O&M cost of new system
d) Annual fuel cost
AEA 2014-006 Grant Application
$225,660
$500
Page 12 of 20 7/2/2013
Renewable Energy Fund Round VII
Grant Application -Heat Projects
Project Benefits
a) Amount of fuel displaced for
i. Electricity
I . ,) A L 'h6Bi¥'t 5
~ENERGY AUTHORITY
ii. Heat 1,900 gallons of Number 1 fuel oil equivalent of surplus heat
iii. Transportation
b) Current price of displaced fuel $6 .82/gallon per heat recovery feasibility study
c) Other economic benefits
d) Alaska public benefits $12,958 in fuel oil
Heat Purchase/Sales Price
a) Price for heat purchase/sale
Project Analysis
a) Basic Economic Analysis
Project benefit/cost ratio
Payback (years)
.74 per the ISER worksheet
17.41
4.4.5 Building Ef{j c ieAcy
Pl ease ad dr;ess ttw fqllowin g rtems . rE;l late d tQ_ t he p r Q.R.Q§~.~ !.Q,£~!i9r:t of th e heat in g P..r.oj~ct. If
mo re th an 0ne buiiCili ng will b e..i m~a cted , pl ease ad d ress t h is in f0~m at i 0n for eac h b ui lding.
• Building name
Chuathbaluk Water Treatment Plant
• Type or primary usage of the building
Water treatment and circulation
• Location
Chuathbaluk, AK
• Hours of operation
24 hours
• Single structure or multiple units
Single
• Total square footage
N/A
'·
AEA 2014-006 Grant Application Page 13 of 20 7/2/2013
Renewable Energy Fund Round VII
Grant Application -Heat Projects
• Electrical consumption per year
N/A
• Heating oil/fuel consumption per year
1900 gal fuel oil per year
• Average number of occupants
N/A
• Has an energy audit been performed? When? Please provide a copy of the energy audit,
if applicable.
Yes. See attached.
• Have building thermal energy efficiency upgrades been completed?
N/A
o If applicable, please provide evidence of efficiency improvements including cost
and anticipated savings associated with upgrades.
N/A
o Estimated annual heating fuel savings
N/A
• If the building is not yet constructed please provide evidence of the value of planned
building envelope efficiency investments beyond typical construction practices. Include
anticipated savings associated with efficiency investments if available.
N/A
SECTION 5-PROJECT BENEFIT
Explain the economic and public 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:
• Potential annual fuel displacement (gallons and dollars) over the lifetime of the evaluated
renewable energy project. In order for the applicant to receive credit for heating fuel
displaced the applicant must provide the most recent invoice for heating fuel purchased.
• Anticipated annual revenue (based on i.e. a Proposed Heat Purchase Agreement price,
RCA tariff, or cost based rate)
• Potential additional annual incentives (i.e. tax credits)
• Potential additional annual revenue streams (i.e. green tag sales or other renewable
energy subsidies or programs that might be available)
• Discuss the non-economic publi c benefits to Alaskans over the lifetime of the p roject
The potential fuel displacement is 1,900 gallons of fuel used by the water system. The cost of
the fuel is $6.82 per gallon as of the summer of 2012. The annual cost of fuel displaced for the
water treatment plant therefore equals $12,958.
There are no other known incentives or revenue streams that will result from this project. The
benefits of this project to the community include a reduction in the amount of fuel required by
the community, a much more efficient use of the recovered engine heat, and a direct benefit to
each community member due to the lower cost to produce, store, and deliver water.
AEA 2014-006 Grant Application Page 14 of 20 7/2/2013
Renewable Energy Fund Round VII
Grant Application -Heat Projects
SECTION 6-SUSTAINABILITY
Discuss your plan for operating the completed project so that it will be sustainable.
Include at a minimum:
• Proposed business structure(s) and concepts that may be considered.
• How you propose to finance the maintenance and operations for the life of the project
• Identification of operational issues that could arise.
• A description of operational costs including on-going support for any back-up or existing
systems that may be require to continue operation
• Commitment to reporting the savings and benefits
This project increases the sustainability of the water system by reducing its operating cost by
$12,958 per year in today's dollars. The minimal maintenance and operating cost can be funded
out of its revenue stream and out of its savings over the 30-year life of the project.
Although the existing boilers would still be considered the primary heat source, the heat recovery
system will be capable of providing all of the heat. The boilers will continue to fire if the heat
recovery fails for any reason.
SECTION 7-READINESS & COMPLIANCE WITH OTHER GRANTS
Discuss what you have done to prepare for this award and how quickly you intend to proceed
with work once your grant is approved.
Tell us what you may have already accomplished on the project to date and identify other grants
that may have been previously awarded for this project and the degree you have been able to
meet the requirements of previous grants.
A detailed heat recovery study has been completed and is attached to this application. The intent
is to proceed with this project as soon as design and construction funding is available.
SECTION 8-LOCAL SUPPORT AND OPPOSITION
Discuss local support and opposition, known or anticipated, for the project. Include letters of
support or other documentation of local support from the community that would benefit from this
project. The Documentation of support must be dated within one year of the RFA date of July 2,
2013.
The City of Chuathbaluk, which owns the water treatment plant, is submitting this application.
ANTHC has provided a match for the project as well as a letter of support. There is no known
opposition to this project.
SECTION 9-GRANT BUDGET
Tell us how much you are seeking in grant funds. Include any investments to date and funding
sources, how much is being requested in grant funds, and additional investments you will make
as an applicant.
Provide a narrative summary regarding funding sources and your financial commitment to the
project
AEA 2014-006 Grant Application Page 15 of 20 7/2/2013
Renewable Energy Fund Round VII
Grant Application -Heat Projects /
.., AI aiM\ s
_,ENERGY AUTHORITY
Please provide a short narrative, and cost estimate, identifying the metering equipment, and its
related use to comply with the operations reporting requirement identified in Section 3. 15 of the
Request for Applications.
Applications MUST include a separate worksheet for each project phase that was identified in
section 2.3.2 of this application, (/. Reconnaissance, II. Feasibility and Conceptual Design, Ill.
Final Design and Permitting, and IV. Construction and Commissioning). Please use the tables
provided below to detail your proposed project's budget. Be sure to use one table for each
phase of your project.
If you have any question regarding how to prepare these tables or if you need assistance preparing the
application please feel free to contact AEA at 907-771-3031 or by emailing the Grant Administrator,
Shawn Calfa, at sca/fa@aidea.org.
BUDGET NARRATIVE
The cost estimates presented below are representative of the expected costs of the proposed
system, taking into account recent design and construction costs of other similar projects. There
are large financial risks associated with construction work in rural Alaska. Expenses for potential
changes to site conditions, unknown or unforeseen issues, and logistics have been incorporated
into these costs. Expenses for potential changes in site conditions, unknown or unforeseen issues, and
logistics have been incorporated into these costs. ANTHC's match may actually work out to be much
higher than shown, as this work may be performed at ANTHC's billing rate and may exceed the hours
anticipated. The anticipated dates of completion are assumed based on the likelihood of
funding, other ongoing work in the village, and other heat recovery work going on around the
state.
AEA 2014-006 Grant Application Page 16 of 20 7/2/2013
Renewable Energy Fund Round VII
Grant Application -Heat Projects
Anticipated RE-Fund DESIGN PHASE Grantee
Milestone or Task Completion Graot M~tchlng Date Funds
(List milestones based on phase
and type of project. See Milestone
list below. )
Project Management Throughout 8/1/2015 $0 $1,146
Conduct Kick-off Meeting 11/1/2014 $2,000
35 % design with Cost Estimate 2/1/2015 $12,000
Complete 95 % Design with Cost 5/1/2015 $14,192 Estimate
Construction Bid Documents 7/1/2015 $8,000
Final Business Plan 7/1/2015 $1,000
Negotiated heat sales agreement 7/1/2015 $1,000
AEA Approves moving ahead to 8/1/2015 $0 construction
TOTALS $38,192 $1,146
Budget Categories :
Direct Labor & Benefits
Travel & Per Diem
Equipment
Materials & Supplies
Contractual Services * $38,192 $1 '146
Construction Services
Other
TOTALS $38,192 $1,146
AEA 2014-006 Grant Application Page 17 of 20
ALWf??t': 7
ENERGY AUTHORITY
Source of
Matching Funds:
Cash/In-
kind/Federal TOTALS
GrantsfOther State
Grants/Other
In-kind ANTHC
projecUprogram $1,146
management
$2,000
$12,000
$14,192
$8,000
$1,000
$1,000
$0
$39,338
$0
$0
$39,338
$39,338
7/2/2013
Renewable Energy Fund Round VII
Grant Application -Heat Projects
An~lci p a.te " RE-Fun" CONSTRUCTION PHASE
Milestone or Task Co mpl etion Grant
Date Fund s
(List milestones based on phase
and type of project. See Milestone
list below. )
Project Management Througout 5/1/2016
Pre-Const. meeting with Schedule
and cost estimate with ANTHC 8/1/2015 $5,000
construction department.
Material Procurement and 4/1/2016 $75,330 Mobilization
On-site Construction 6/1/2017 $85,138
Conduct periodic site visits 6/1/2017 $3,000
Conduct Substantial Completion 7/1/2017 $7,000 Inspection
Startup and Testing 8/1/2017 $5 ,000
Clear Punch list Items 9/1/2017 $5,000
Project Closeout 10/1/2017 $2 ,000
$187 ,468
Budget Categories:
Direct Labor & Benefits $0
Travel & Per Diem $0
Equipment
Materials & Supplies
Contractual Services * $187,468
Construction Services
Other
TOTALS $187,468
Gra ntee
Matching ~
$5,624
$5,624
$5,624
$5,624
AEA 2014-006 Grant Application Page 18 of 20
Source of
Matching Funds t
Cash /In ·
kind/Federal TOTALS
Grants /Other State
Grants/Oth er
$5,624
$5,000
$75,330
$85,138
$3,000
$7 ,000
$5 ,000
$5,000
$2,000
$193,092
$0
$0
$0
$193 ,092
$193,092
7/2/2013
0 9/0 6/2 013 FRI 16: 21 FAX
Renewable Energy Fund Round VII
Grant Appl icatlon -Heat Projects
Community/Grantee Name:
Regular Election Is held:
tC1 t>
Authorized Grant Si
Printed Name
I :J-Df3
Title
I = A I
0 'iliMe
~ENERGY AUTHORITY
-10--13
Term Signature
I authorize the above person(s) to sign Grant Documents:
(Highest ranking organization/community/municipal official)
Printed Name Title Term Signature
Grantee Contact Information· .
~lllng Address: wdAt 99.<..-tJ {), 6 , ~ {; 1-fU. C}u~/-1, OJ.,
Phone Number: CftJ 7 'ftp J L/l/s-
Fax Number: qo1 'IIR7 Lflt7
E-mail Add rest ?'IDYl@ aJ,a c.oc '.J '/>,com
Federal Tax 10 #:
9 J.-00'13 '115
IZJO 22/0 24
Please submit an updated form whenever there Is a change to the above Information.
AEA 2014·008 Or&nt Applieetloo Page 18 of20 71212013
9 0 74674117 06/09 2 0 13 16 :17 RECEIVED FROM : #2 0 49-022
...
09/10/2013 TUE 11:50 FAX ~002/002
Renewable Energy Fund Round VII
Grant Application .. Heat ProjectA I = AL¢0'M as
~ENERGY AUTHORITY
A. Contact Information, r()su.mes of Applicant's Project Manager, key staff, partners,
consultants, and &UPP.I.Iers per application form Section 3.1 and 3.4. Applicants
are asked to provide resumes submitted with applications In separate electronic
documents If the Individuals do not want tneir resumes posted ttt .the project web
site. '· . ~
B. Letters or resolutions dlmonstratlng local support per application form Section 8 . . ,,
C. For heat projects only: Most recant invoice demonstrating the coat of heating fuel
for the building(a) impacted by the project.
D. Governing Body Resolu:tion or other formal action taken by the applicant's
governing body or management per RFA Section 1.4 that:
Commits the organ~zatlon to provide the matching resources for project at the
match amount& Indicated In the application.
-Authorizes the individual who signa the application has the authority to
.,..,_,..,. ... ;, ........................ ·~-......... ~.""' _ ............................. ~ ................. ..
==· ._.,qt:,;..,...,. ,...,. r~""'; ... .a: v-r-U'~·-i"Mo.C· .. "1:11'-rC:.pro~or..C .-:.;.,oe. "'d.ppHcu:~~ll"'f"i. ,;~,. P'-•rp~M.:::.'W ~# ..... .._. ......
nppllnn+lnn . 11
Certifies the applicant le In compliance with applicable federal, atate, and local,
laws Including existing credit and federal tax obligations.
E. One paper copy and one electronic version of the entire application on CD or other
electronic media, per RFA Section 1. 7.
F. C!RTIFICATION
The undersigned certifies that t his application for a renewable energy grant Ia truthful
and correct, and that the applicant Is In compliance with, and will continue to comply
with, all federal and state laws Including fiAiating credit and federal tax obligations and
that they can indeed commit t.l:l.tt entity to these obligations.
Print Nama
Signature
Tl
AEA 2014·006 Orant Application Page 20 ot20 71212013
9 0 74674117 10/09 2013 11.45 RECEIVED FROM . #2052-002
Native o/i(Cage of Cfiuatfi6a(u~
City of Chuathbaluk
1001 Community Center
Chuathbaluk, AK 99557
September 10, 2013
To Whom it May Concern:
Chuathbaluk Traditional Council
#1 Teen Center Trail
Chuathbaluk, Alaska 99557-8999
The Native Village of Chuathbaluk would like to offer our support for the Application to use
waste heat generated by our Power Plant to supplement needed heat for the water treatment
plant. As a Tribe we believe strongly iri conser\ration and sustainability and this project supports
both of those beliefs. Currently the City of Chuathbaluk has a burden of trying to sustain
infrastructure and this grant would help offset those costs ,
If you have any questions or concerns, please feel fre e to call at (90 .7) 467-4313.
, .. '' • I • • '
. '
J •••
, .. · ...
Division of Environmental Health and Engineering
3900 Ambassador Drive • Suite 301 • Anchorage, Alaska 99508 • Phone: (907) 729-3600 • Fax: (907) 729-4090 • www.anthc.org
James M. Smith, Mayor
City of Chuathbaluk
PO Box CHU
Chuathbaluk, Alaska 99557
Dear Mayor Smith:
· September 20, 2013
Re: Letter of Commitment for matching funds to a proposal for Alaska Energy Authority,
Renewable Energy Funds Round VII.
It is with pleasure that the Alaska Native Tribal Health Consortium (ANTHC), Division of
Environmental Health and Engineering (DEHE) is partnering with the City of Chuathbaluk in
your proposed heat recovery project to the Alaska Energy Authority's (AEA) Renewable Energy
Fund.
DEHE is committed to reducing costs of water and sanitation systems for community buildings
and homes, reducing energy consumption, and providing sustainable public health infrastructure
that saves on fuel and health care costs, leading to healthier Alaskans. Your project Chuathbaluk
Water System Heat Recovery is one of exceptional importance to the future energy needs of your
community and one that ANTHC DEHE fully supports.
In support of your project, ANTHC DEHE will commit an in-kind match of$6,770 as indicated
on the application for project management staff time to manage the project. These matching
funds will be tracked and reported to as required for purposes of the AEA reporting requirements
if the award is granted by AEA.
We wish you every success on your proposal and look forward to working with you on this
important project.
Sincerely,
~Ul.CM7A__
Steven M. Weaver, P.E.
Senior Director
YUKON-KUSKOKWIM HEALTH CORPORATION
YKI I , uworking Together to Achieve Excellent Health"
September 9, 2013
City of Chuathbaluk
Jerry Peterson
City Administrator
POBoxCHU
Chuathbaluk, AK, 99557
Dear Mr. Peterson:
Re: Letter Supporting the City of Chuathbaluk, Alaska Grant Application
The Yukon-Kuskokwim Health Corporation would like to submit this letter supporting the Alaska Energy
Authority grant application being submitted by the Chuathbaluk City Council and their efforts to reduce their
reliance on fossil fuels and shift toward more sustainable and environmentally friendly resources. This project
has the potential to not only reduce the amount of fuel used in supplying treated water to the community but
also has the secondary health benefit of reducing the amount of combustion byproducts introduced into the
community.
We enthusiastically support the efforts of the Chuathbaluk City Council to pursue the construction of a heat
recovery system for their water treatment plant.
Sincerely , ~ ~~ "'""'-'
Field Environmental Health Officer
Yukon Kuskokwim Health Corporation
P.O. Box 528 • Bethel, Alaska 99559 • 907-543-6000 • 1-800-478-3321
Chuathbaluk (CHV-ELE)
Customer Transaction Summary
Customer Information Location Information
ACCT. NO : CHU1035 SERVICE ID: B391L035
CITY OF CHU-NEW PUMPHOUSE WATERTREATMENTPLANT
P.O.BOXCHU
CHUATHBALUK
ANIAK, AK 99557-
Transacuon
Date Type Read Date Reading Usage Prior Balance Amount Balance
06/01/2012 Adju stme nt 0.00 5067 .50 5067 .50
06/30/2012 F Charge 07/0112012 93227 51.)7 5067 .50 2!15.72 5353.22
07124/2012 Paym ent 5353 .22 -25 .39 2764.83
08/01/2012 Charge 08/01/2012 93819 592 2764.83 2lL .45 3048.28
09/01/2012 Chargc 08/31/2012 94235 4 !6 3048.28 _03.64 3251.92
09/24/2012 Paym ent 3251.92 -508.47 2743.45
10/01/2012 Churgc 10/01/2012 95525 12 0 2743.45 1650.29 4393.74
10/29/2012 Paym ent 4393.74 -2479.11 1914.63
11/01/2012 Charge 11/01/2012 98588 3063 1914.63 3R97.87 5812 .50
11/05/2012 Pay ment 5812.50 -2089.66 3722 .84
12/01/2012 'hnrgc 12/01/2012 99999 1411 3722.84 I 0 .6R 5526 .52
01/01/2013 Charge 12/31/2012 3805 !:<05 5526.52 J 161.99 . 8688 .51
01/11/2013 Paym ent 8688.51 -5526.52 3161.99
01/29/2013 Pay ment 3161.99 -3 16 1.99 0.00
02/0112013 Charge 02/01/2013 6287 24R2 0.00 2067 .78 2067 .78
02/19/2013 Pa yment 2067.78 -2067.78 0.00
03/01/2013 'harg • 03/01/2013 8463 2176 0.00 1RI4 .70 1814.70
04/01/2013 Charge 04/01/2013 10841 237!l 1814.70 19!11.77 3796.47
05/01/2013 Chnrgc 05/01 /2013 13078 2237 3796.47 17 6.30 5532.77
06/01/2013 hnrg 06/01/2013 15759 2681 5532 .77 20 77 .94 7610 .71
06/17/2013 Pay ment 7610.71 -2 766 .39 4844 .32
07/01/2013 hnrgc 07/01/2013 16817 105!1 4844.32 !<2lJ .I 0 5673.42
08/09/2013 09:54:34 AM F =First Bill L = Final Bill U = Unclosed Transaction Page
J de-l_ Cj ~7~·SD _)a &---q (
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3
Chuathbaluk (CHU-ELE)
P.O. BOX CHU
CHUATHBALUK, AK 99557-
Bill To :
CITY OF CHU-NEW PUMP HOUSE
C/0: VSW
P.O . BOX CHU
CHUATHBALUK
ANIAK, AK 99557-
Account#
CHU1035
Bill From
07/01/2013
Bill To
08/01/2013
Meter Number
39633179
Previous Balance
$5673.42
Service
ELEC
COPA
cue
PCE
RCA
Charge
$178.02
$119 .54
$15 .00
$0.00
$0.22
Previous Reading
16817
Current Reading
17204
Monthly Billing Invoice
Date : 08/01/2013
Make Payments to:
ANTHC
P.O. Box 196821
Anchorage, AK
99519-6821
Payments Received
$0.00
Usage
387
For the most recent billing period under the State of Alaska's power cost equilization program, this utility's actual fuel
efficiency fo r your com mu nity was 8.30 kilowatt-hours a gallon . The applicable fuel efficiency standard set out in
regulation s fo r t he po w e r cost equilization program is 10.5 kilowatt-hours a gallon. For the current billing period , the
utility will be pai d und e r t he State of Alaska 's power cost equilization program (AS 42.45 .100) to assist the utility and
its custom ers i n re d uci hg the h igh cost of generation of elect r ic energy .
Account
CHU1035
Totals:
Charges: $312 .78 Total Due: $5986 .20
Please Return with Payment
Meter N1Jmber
396:33179
Charges: $312 .78 Total Due:
Amount Bein1~ Paid: ______ _
Customer
CITY OF CHU-NEW PUMPHOUSE
$5986 .20
Please call1-866-205-7581 if you have any questions or concern s with your
monthly billing invoice .
'
City of Chuathbaluk
Council Resolution for
Alaska Energy Grant Program
Round Seven (7)
City of Chuathbaluk
Resolution 2013-0909
A Resolution requesting Funding from the Alaska Energy Authority, Alaska Renewable Energy
Fund, Round Seven and commitment by the City of Chuathbaluk;
WHEREAS: The City of Chuathbaluk, governing body, hereinafter called the City Council, is a
governing body in the community of Chuathbaluk, Alaska, and
WHEREAS: The Alaska Energy Authority, hereinafter called AEA , may provide assistance necessary
To help address the energy needs of our community;
WHEREAS: The Council desires to seek and utilize renewable sources of energy in order to lower costs
for residents while making our community more economically viable and sustainable into the future in
order to guarantee our way of life for current and future generations.
WHEREAS: The Council authorizes the Alaska native Tribal Health Consorting (ANTHC) to work with the
Council to develop, implement and manage the project for which we are seeking funding from AEA; and
NOW THEREFORE BE IT RESOLVED; that the City Council hereby requests that the AEA appropriate
Renewable Energy Funds, Round Seven to complete project name or description: and
BE IT FURTHER RESOLVED; that the City Council grants authority to the individual signing this
resolution to commit the City of Chuathbaluk, to obligations under the grant and to act as a point of
contact; and
BE IT FURTHER RESOLVED; that the City Council grants authority to the individual signing this resolution
to commit the City of Chuathbaluk, to obligations under the grant and to act as a point of contact; and
BE IT FURTHER RESOLVED; that ANTHC is hereby authorized through a Cooperative Project Agreement
to negotiate, execute, and administer any and all documents, contacts, expenditures and agreement as
required for the City of Chuathbaluk, and managing funds on behalf of this entity, including any
subsequent amendments to said agreements.
BE IT FURTHER RESOLVED; that the Council hereby authorizes ANTHC or its representatives to enter
upon or cross community land for the purposes of assisting the City Council in carrying out this project.
I, the undersigned, hereby certify that the Council is composed of ___L_members of who_(.Q_,
constituting a QUORUM were present and that the foregoing resolution was PASSED AND APPROVED
by the Council this g fh day of &:p±embtr. 2013
Vote: W Yeas Q Nays _L Vttatn+
~/7?~ ~g ned
~~
ounc1l M ember
CHUATHBALUK, ALASKA HEAT RECOVERY
STUDY
PREPARED BY:
Alaska Native Tribal Health Consortium
Division of Environmental Health and Engineering
3900 Ambassador Dr., Ste 301, Anchorage AK 99508
Phone {907) 729-3600 I Fax (907) 729-4046
March 30, 2013
EXECUTIVE SUMMARY
The Chuathbaluk power house and water system were evaluated for heat recovery potential.
The estimated fuel savings realized by implementing a heat recovery system is approximately
1,900 gallons, which is equivalent to the total heat demand of the facility and water system. In
other words, the heat recovery system provides sufficient heat to operate WTP
building plus the water system without consuming fuel for the existing boiler heating
system. The estimated cost for the heat recovery project is $12,881. The simple payback
based on a fuel cost of $6.82/gallon is 16.51 years.
Assuming construction begins in 2015 summer, the design and construction cost plus a 2
year escalation rate of 3% is $225,660.
1.0 INTRODUCTION
The Alaska Native Tribal Health Consortium (ANTHC) reviewed the feasibility of providing
recovered heat from the existing power plant to the existing water system in Chuathbaluk.
ANTHC also developed a budgetary project cost estimate based on Force Account
Construction, including Engineering and Construction Administration.
The existing water treatment plant (WTP) is hydronically heated . The city reports fuel
consumption of 1,834 gallons/year in 2011. Approximately 1,400 gallons is used to heat the
circulating water lines and water storage tank (WST). There is an existing glycol heat trace
system which can be used to thaw the circulating water system in the event of a freeze up. It
is not in use at this time. The glycol heat trace system can be modified to recover heat from
the power plant which then can be used to heat all three community circulating water lines
and the WST. The glycol heat trace system was not designed for heat recovery and will
require new controls and installation of new heat transfer equipment, including controls,
additional piping and a heat exchanger for the WST.
Some work will be required at the power plant, including extending the glycol heat trace lines
approximately 50 feet to the power plant, adding a heat exchanger, injection pumps, and new
controls. This is included in the cost estimate .
Additional assumptions have been made in the report, including but not limited to the
proposed arctic piping route, building heating loads, and flow rates and pressure drops of the
heat recovery system. It is anticipated that sizing and routing of arctic pipe, selections of
pump and heat exchanger with other design elements will require refinement as the project
progresses
We obtained available information from AEA regarding the 2011 power plant electrical loads.
End-user annual fuel use was obtained from a variety of sources, including the City of
Chuathybaluk and engineering estimates. When possible, reported fuel consumption was
used to validate engineering estimates. Site visits were made to the existing WTP and power
plant to confirm accuracy of information obtained.
2.0 OVERVIEW
The purpose of this study is to provide an estimate of the heat that can be recovered from the
community power plant diesel engines and used to offset heating oil consumption at the
nearby public buildings. Useable recovered heat is quantified in gallons of heating fuel saved
using a gross heating value of 134,000 BTU per gallon of #1 arctic diesel fuel and an overall
boiler efficiency of 7 4% for a net heating value of 99,100 BTU per gallon.
The water system is eligible for heat recovery because existing circulating water lines are
located within a 50-foot radius of the power plant. This analysis evaluates the potential to
provide recovered heat to the circulating glycol loop running with the water lines. The
estimated average annual heating fuel consumption is 1 ,900 gallons.
3.0 ESTIMATED RECOVERED HEAT UTILIZATION
A heat recovery utilization spreadsheet has been developed to estimate the recoverable heat
based on monthly total electric power production, engine heat rates, building heating water
system heating demand, passive losses for power plant heat and piping, and arctic piping
losses. The spreadsheet utilizes assumed time-of-day variations for electric power production
and heat demand. Power generation data from AEA for fiscal year 2011 is used in the
spreadsheet. The estimated heat rejection rate for the lead power plant genset, John Deer
4045TF280 (64 KW, engine heat reject rate of approximately 1,800 Btu/KWh according to
John Deer engine installation criteria) is used to estimate available recovered heat. Heating
degree-days for Chuathbaluk were utilized for this site. All arctic piping is assumed to be
routed below grade.
The spreadsheet uses monthly heating degree-days to distribute annual fuel consumption by
month. The end-user hourly heat load is compared to the hourly available heat from the
power plant, less power plant heating loads and parasitic piping losses, and the net delivered
heat to the end-user is determined.
Following is a summary of annual fuel use and estimated heat utilization in equivalent gallons
of fuel:
System
WTP Heating:
Circulating Water Loop 1:
Circulating Water Loop 2:
Circulating Water Loop 3:
Water Storage Tank:
Total
Estimated
Annual Fuel Use
(Gallons)
501
320
287
618
169
1,894
Estimated Annual
Fuel Avoided
(Gallons)
501
320
287
618
169
1,894
4.0 HEAT RECOVERY SYSTEM DESCRIPTION AND OPERATION:
The heat recovery system captures jacket water heat generated by the power plant that is
typically rejected to the atmosphere by the radiators. The recovered heat is transferred via
below-grade arctic piping to the water system. The objective is to reduce the consumption of
expensive heating fuel by utilizing available recovered heat.
Although heat recovery is an excellent method of reducing heating fuel costs,
recovered heat is a supplementary heat source and it is imperative that the end-user
facility heating systems are operational at all times.
Hot engine coolant is piped through a plate heat exchanger located at the power plant. Heat is
transferred from the engine coolant to the recovered heat loop without mixing the fluids.
Controls at the power plant are used to prevent sub-cooling of the generator engines and
reducing electric power production efficiency. The recovered heat fluid is pumped through
buried insulated pipe to the end-user facilities.
4.1 POWER PLANT TIE-IN
All heat recovery piping will be insulated with a minimum of 1.5-in rubber foam insulation. All
valves will be either bronze ball valves or lug style butterfly valves with seals compatible with
50/50 glycol/water mixtures at 200F. Air vents, thermometers, pressure gauges, drain valves,
and pressure relief valves will also be provided. Additional controls will be added, including
a BTU meter and heat injection pumps for coolant and recovered heat temperature control.
4.2 ARCTIC PIPING (Recovered Heat Loop)
The arctic piping is existing except for approximately 50 feet to the power plant. It consists of
a 4" carrier pipe with a heat trace channel. Existing pumps at the water treatment plant will
circulate the system. The existing glycol expansion tank is dramatically undersized and will be
replaced with a larger tank to accommodate thermal expansion of the heat recovery fluid.
The recovered heat fluid will be a 50/50 Propylene Glycol/Water solution to provide freeze
protection to the piping.
4.3 END-USER BUILDING TIE-INS
End-user building tie-in consists of modifying the existing glycol heat trace piping in the WTP
to allow piping each circulation loop in series. The existing pumps were sized for series
piping, but the system was piped for parallel piping. This will require approximately 3-5
valves and 10-80 feet of 1-1 /2" pipe. A double wall shell and tube or double wall brazed plate
heat exchanger will be installed to allow heat addition to the water storage tank. The
maximum anticipated delivered recovered heat supply temperature is about 80F. When there
is insufficient recovered heat to meet the water system heating load, the building heating
system (boiler or heater) will fire and add heat. Off the shelf controls will lock out the
recovered heat system when there is insufficient recovered heat available.
Typical indoor piping will be type L copper tube with solder joints. Isolation valves will be
solder end bronze ball valves or flanged butterfly valves. All piping will be insulated with a
minimum of 1-in insulation with an all-service jacket. Flexibility will be provided where
required for thermal expansion and differential movement. Air vents, thermometers, pressure
gauges, drain valves, and pressure relief valves will also be provided.
The WTP facility will also receive a BTU meter to provide recovered heat use totalization and
instantaneous use.
4.4 RIGHTS-OF-WAY ISSUES
There are no apparent conflicts with rights-of-ways for the arctic piping between the power
plant and the end-user buildings, as the route is entirely within existing road rights-of-ways
and on city and power plant property.
A Heat Sales/Right-of-Entry Agreement will be required between Middle Kuskokwim Electric
and the city to define the parties' responsibilities, detail the cost of recovered heat, and
authorize the connection to the power plant heat recovery equipment.
5.0 PRELIMINARY EQUIPMENT SELECTIONS
The following initial equipment selections are sized and selected based on preliminary data
and will require minor modifications to reflect final design.
5.1 Heat Exchangers
Based on initial selected flow rates, brazed plate heat exchangers appear to be adequate for
all locations. Initial heat exchanger selections are as follows .
HX-1: (Power Plant). 50 MBH capacity
Primary: 7.5 GPM 190F EWT (50% ethylene glycol), 1.5 PSI max WPD
Secondary: 6 GPM 80F LWT (50% propylene glycol) 1.5 PSI max WPD
HX-2: (WTP). 10 MBH capacity.
Primary: 2 GPM ?OF EWT (50% propylene glycol), 0.5 PSI max WPD
Secondary: 2 GPM 50F LWT (Potable water) 1.0 PSI max WPD
5.2 Arctic Piping
The length of heat recovery loop piping between the power plant and water main is
approximately 50ft. There is existing arctic piping in the community with a 4" carrier pipe that
can be used. Approximately 100ft of 1-1/2" HOPE pipe will be used inside the 4" carrier pipe
to extend the glycol heat recovery loop to the power plant.
5.3 Circulating Pumps
P-HR1: Heat recovery pump at power plant
Flow= 7.5 GPM, Head= 10ft
Initial Selection: Grundfos UPS 26.
P-HR2: Heat injection pump at power plant.
Flow = 6 GPM, Head = 1 0 ft
Initial Selection: Grundfos UPS 26.
5.4 Expansion Tank
Total heat recovery loop volume is approximately 1600 gallons. Pressure relief at the power
plant heat exchanger will be 45 PSIG and the maximum normal operating pressure will be 40
PSIG.
ET-1: System requirements: 70 gallon tank and 40 gallon acceptance
5.5 CONTROLS
Generator plant Heat recovery system will use an off the shelf heat injection temperature
controller to start/stop a heat injection pump. Control will provide mixed temperature, freeze
protection, and prevent backfeeding of boiler heat into heat recovery system. In addition, A
BTU meter will be provided at each facility, displaying instantaneous temperatures and heat
transfer, as well as totalizing BTUs used.
Differential Controllers: 2 required Tekmar Model155 differential temperature control
BTU Meters:
BTU-1 WTP: KEP BTU meter with 1" magnetic flow meter and matching temperature
elements.
6.0 CONCLUSIONS AND RECOMMENDATIONS
Estimated construction costs were based on recent heat recovery project data. Estimates
include the costs of material, equipment, freight, labor, design, construction management,
and startup and testing. The base project cost includes the power plant and WTP, along with
design and construction management/administration costs. Incremental costs for arctic pipe,
end-user building renovations, and overhead and freight are estimated individually for each
end-user building (refer to attached cost estimate).
The estimated project cost for is $212,706. The amount of recovered heat exceeds the entire
heat load required for WTP as shown in the attached Figure 1. In general, the boiler heating
system does not need its operation under the normal conditions. Estimated fuel savings are
approximately 1,900 gallons. Using a 2012 fuel price of $6.82/gallon results in estimated
community savings of $12,881 for a simple payback of 16.51 years.
The most significant benefit of this feasibility study is that recovered heat can replace
the entire heating demand for WTP building plus the water system.
Funding for design and construction isn't expected until 2014 fall, with construction occurring
2015 summer. With a 2 year escalation rate of 3% per year, the estimated 2015 project cost is
$225,660.
APPENDIX
1. CAD Drawings
A. Cover Page
B. Site Plan
C. System Schematic I
D. System Schematic II
E. Trench Detail
2. Figure 1. Chuathbaluk Recovered Heat Utilization.
3. Figure 2. Chuathbaluk Recovered Heat.
4. Cost Estimates for Heat Recovery Project.
5. Recovered Heat Utilization Simulation Work Sheet
CHUATHBALUK, ALASKA
ANTHC RECOVERED HEAT STUDY
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1 COVER
2 SITE PL AN
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4 SYSTEM SCHEMATIC
5 DETAILS
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Alaska Native CHUATHBALUK,AK
CANIIDA
Tribal Health Consortium
Division of Environmental
Health and Engineering
ANTHC RECOVERED HEAT STUDY
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ANCHORAGE, AlASKA, 99S08-l440
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CHUATHBALUK,AK
ANTHC RECOVERED HEAT STUDY
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@ !_YPICAL BURIED ARCTIC PIPE INSTALLATION
6" LEVELING
COURSE COMPACTED
ONLY IN ROADWAYS
COMPACTED BACKFILL
EXISTING GROUND
HAZARD TAPE
INSTALL AWG 12 SOLID
COPPER TRACER WIRE
WITH YELLOW POL YCOA TI NG.
TRACER WIRE MUST BE 600V
~RATED AND UL LISTED << FOR DIRECT BURIAL.
(2) 1 1 /2" HOPE IN
4" CARRIER
12" ARCTIC PIPE WITH
4" HOPE CARRIER
70
60
50
a::40
% -~
~
:?i 30
20
10
0
1
Recoverd Heat Utilization
Chuathbaluk Recovered Heat Utilization
2 3 4 5 6 7 8 9 10 11 12
MONTH
Storage Tank Heat Add (MBH} -WTP Building Heat Loss (MBH}
-Circ Loop 3 Heat Add (MBH) -Circ Loop 2 Heat Add (MBH}
-Circ Loop 1 Heat Add (MBH} -Estimated Available Heat for recovery (MBH)
Recovered Heat
Chuathbaluk Recovered Heat
11 Recovered Heat (1894 Gal)
~ Boiler Fuel Demand without HR (1894 Gal)
350
300
250
200 ..... < Cl
150
100
50
0
January February March April May June July Aug Sept Oct Nov Dec
MONTH
Cost Estimate for Heat Recovery Project
Chuathbaluk Heat Recovery Cost Estimate Chuathbaluk Heat Recovery Cost Estimate
I· LABOR MATERIALS
? Production ~ -~ '1 .!!
1
.r----=-l 01 ;;, I ~I ~ ~ _________ =.!_ Rate Days .... ~ ~ ; .g I ~ .E ~ .._ ~ I 1;
I (60hr. ~ -~ ~ -fi ~ I ~ _E: ~ ~ ,g B ~ ] ~ 111
_,m~ht I
Design
ELEMENT Week) ell .lj 8" ;!E iii C:: ~ u .3 ~ .3 8" .3 0:: Tota l Item No.I Cost Ea Total Cost :-._:.
C.!Y lUte 134 12& 117 11e I 127 I 126 65 108 35 1 35 i 35 Labor 1 ~ rr~lgm 1
-I I I t
Cillll
Mechanical
EJ2dl1Cal ..-.,;;_, __ _
Mobilization
_O'rlS 0.0 <Rx!td estlmat"@ 120 /hr. -1.100 $ 1
___ 1=-:50:=· 8 1 S.O Fixed estimate · 120 lhr. 1,100 I S 2.200 I
1001 8 10.0 IFuted estimate 120 1hr; 1.10G S 1.100
I l Desigr $ .30.000
Total nouto .o a:;,o o.o D.O 170.01235.0 1 9 .0 0.0 I 20.0 L2D .O 13\l.O
'No!"
Equipment Snipping -_j _ f-0.0 1 1 $ -I S -.L __
Ta~rts · t 1 1.0 1 11 s 2.530 I s s
j l
Tmlpl ng · . 1 1 1J! I S -I $ S
l M~Is Re~eh.ong and l<r<:!ln!Ory -1 i 1 1.0 • 1 0.2 1 S 2,700 $ S -
Se t 1111 "Mate,{,IGSioragC/Yaid 1 1 1.0 1 0.5 1 0.5 0.2 1 1 -$ 1 435 ' s s --
' ~~iiin; tci'Ceiisi ~~~ o.o 1 ' s -s =. ;s-_. -=:1
I I I __ ,
'Note 1 • 1 Hou.slr,g -
L ocal~
-Camp se(up -
__ • I I I s · BerCal t4 , s ~. 2.800 -~..:...1~B.Qq,9.Q
1 1 1.0 • I 1 1 ; I 1 $ 2 530 s -S
I : I S •
-I I I I ' $ • S -.
3 1 -J .P ·-· 0.2 • 0.5 : i 1((:.1 -'-491 Pipe&Fltlll}gS_~,~ s: 10.000 S 1.~ s 11.o00.00
; 2 1 _ 1,0 0.5 2 i 1 1 t ' 1 $ :®-Controls !.. ~-IJ?OO S 1,il00 S _ J9.0 S ..1.!00.0Q_
.J.. 1 ~:~-__ ..__ I · ,; : ; l L..-.. 9.·! ,,;80 -~~ -"-' 1 1 s 600 ~ sco t ~oJ_sco.O§:
I I . $ ,-------
Power Plant Mnd'RlmrallS
'Coo linQ syG mod ific"~ons
eo nirols ·
-Make-~/ El!panston Tanks
ltf!luJ~ifw.t_ u~ ·
WTP 3Lcg Connectlo11 I I I 1 I ' $ I ·--·H_e_!!1l~'Sy,mottm~a\Jo:;s " ' 4.0 1 1 I 1: 1 1 j s 6144()-(Pi~s l , s s.oo a s 5.0Q£}
~ I I Tf8Jlk I 1 5 3;500 $ _ _}~50()• s
-s --.
soo s-s;ao:o.oo
BOO $ 4.300.00
C<ltltrols
,§f'WI • ..!:IE\.I!L
1.0 s 1.270
-----"----+---_j J I I l i $ ~ ' I I I I 1
Heal Excha~ , S • .5llO S 1,500 ' S
Controls 1 S 1,COil S 1.000 : $
200 s :.700..00
100 s ',100."60
,_ j.~ Feet buried arctic B!pa .50 25 2.0 1 1 1 T-,--r -~ 11 1 s 3.220 Le ll oll!lr.argtJc l!l~~e.avaliab!s on slle
---..---0,0 I I 1 i I T $ ----· --T . I
_ _.._ I . o.o 1 T I T S , I I
I l I T I T .
BT,U Meter install i I ; I S -S -
. :.9.~~and l~L=-·----·1 1 1.0 i · 1 I 1 1 ! I 0.1 1 , I 1 S 2 ,955 BTU Mctt.r 1 S. 2.600 $ 2.600 I S 150 $ 2,750,00 I
ProgJ!111miflg_!.M ~'<!!.-1 1 1.0 I · 1 1 I • ; I $'_-~-Flow meter I 1 . 5 2,600l 5 2.600 I S 150 S 2.750.00
SIIPJlort Activities
• CfloJqll
I I I -~----I I l I s -
j I ' I $ • S •
-·-~ 2 1 1 2.D I 1 • • 1 1 Q.2 1 I 1 $2 860 Glycol SJ I S 1,150 S 37.SS0 1 5 37 ,950 .. 00 (
1 I • I I I S
"'aw1p ano 'i'P!!.!!'~Df'.L~.!"...!JI.!. .• __ • I. I I I -----1 -T ---_ I $ -
Uturafute and. R~~ -·--1 ' J 4 • S 5 20 $ 2.080 $ 100 S 21180.00
1 T raL~~ ___ 1 1 1 1 1 I 2 1 S ~ -
I I
Cost Estimate for Heat Recovery Project
IJcb Clean Up/rinai inspection I I I I I I S -I I s I s -
-· -;Prelimin.l!Y Clean Up I o.o I I " I I T $ -I I S -I s -
--,Fi"lll Inspection Punch l.isl 3 1 1 3.0 0.3 1 I .I 1 1 1 1 I I I T $ !1,724 I s . $ -
F lrlai Cic~ 3) 1 3Jl I I 1 1 1 1 I I 1 s 8,640 I $ . $ -r r l i I ' T s -$ . I
De-Mobe I I ., I I I ·r I T 5 -I I i I
_____.~_y_:p~la 1 I 1 1.0 I ' I . 1 1 I I' s 1,260 I s . $ -
--~-!!!! 1 1 1.0 I I I I I I I I s -I s -$ 1 000 1 1 ,000.00
i I I I I I I $ -s -
Fi~l I I I I I I $ -I s -s -
FlnanciaJ Close cut/ 'Audlll~ I 1 1 1.0 1 I I ~ I n $ 1:2.60 I I s -s .
-As bUiltlrig __ •I 1 1 1.0 i , I I I s 1,260 I I s -s
I I I I I I I $ I I ~ -s .
A"ss\J!flpU!Ifl£ ' .I I I I I I
• Local accomodations are available. j + I . L±~~ I
·Ali exterior piping run on sleepers above .
I I Uw'"'' Tota(,~bc:lr $ 68,625 , Totll~a l S 70.630 M+F lotll $ 75.330.00 l I
_grade . . -t l l .1. Wiih~e~.sn . $101,925
-Power plant is mostly comigured and ' f I I ·, ~ • Marer'.als .. F~hr I S 143.955
e!IU!pali, I I I ,_ I
-System control can be accomplished w/o a I I I ·r Li.bOr• Mat-Ff'!lt + D!!:~i!!li1 s 177.255
panel , I I I ·• I T l I --
-Crew leader functions will be acccmp:ished _j_ -l I ' All T COfl~~~ s 212.706
by Superentendant, or in lieu of Super , __ , ___ I I I.
I I l , I I 2 yearsesc:&llilion@ :i'% /}tea: s 12.954
~ I I I i I I
i , I I I T I Total s 2lf5']6if ____
! -
I· I ' --
~ I I r Estimated ann!Jal sa.~ __ $_1_~,.
1~--. .
I I I I i
I I I T : I Sirn!lle Pavbstl< {wi~ eoc"!~) 1&;51 .J!l"_
I I I I T l ' --1 !-I I
' I I ~-· I _._ r---r~ -' I
I T I I I i I I -----I I -
Heat Recovery Utilization Si mulation Work Sheet
ANTHC DEHE
Alaska Native Trib81 Health Consortium
Project Name: Chuathbaluk Heat Recovery Project
Project Number. TB D
Engi.-r. CP Checked:
Revision Dale: 08-Feb-13
Print: 16-Sep-13
Find: Feasibility of Heat Recovery from Chuathbaluk Generator Fadllty to existing WT1'
Givlln:
Assumptions:
Calculations:
Monthly KWH prodlJCEld by existing Chuathbaluk generator plant in 2011
Heating Decree D"V' for Chuathbaluk
Glycol Heat Trace HX
Tank Heot add HX
Loop 1 Heat Add HX
Loop 2 Heat Add HX
Loop 3 Heat Add HX
Es1imated Peak heat loss for 1 WST (14,000 gal):
Estimated Peak heat kiss for WTP Bldg
Design Air Temperatura:
Obsefved Water Tempen!llJre
Design Glycol Heat Trace Temperature
WTP buidling Space temperature
Heat Recovery Opera~ng Temperature
1800 BTU to radiators I KW Power Generated
{From JD Engine Installation Criteria)
H&at IO$S per below calc!Ja~ons
Heat loads per below calculalions
68 ,6 MBH
5.0 MBH
50.0 MBH
40.0 MBH
6"7.5 MBH
15,000 BllJ/Hr
20.000 BT\JIHr
-40 Deg F
SO Des F
70 Des F
65 Degf
180 Deg F
11100 (EmJIHr)/KW
Raw water production occuring in summer months only (seasonal water supply)
Power consumption distribution based on PCE report & assumed load profile.
'l oop 1 Buried Water Main Heat Lo<s :
Design Air Temperature
Joes ;gn Ground Sumce T~mperature
!nsulodcn ;
C-a rrlc r Pipe:
lrutrlatkJn K value-
fGrcund K value
Plpe R value ~
Dcptll of Bury=
l!ur1c.d Pipe
Des ign Heat Loss:
H~t Loss/ Foot
Hl'-'1 1 Loss I Degree OSA tern p
-40 Degrees F
28 Degrees F
4 lnc.h foam ins.
4 Pipe 00 (lnche•)
0.017 BTIJH I (ft X Deg F)
0.12 BTUH I (ft x Deg F)
10.286 Ft X hr X Deg F
8.0 f!!et
4481 Ft
8,415 BTIJ/hr
1.88 BTIJ/hr
210
Fuel Cons
NewWSTHX
Division of EnvirOflmen/a/ Hea/tn & Engineoring
3000 Ambassador Dr. SLAte 301
ANCHORAGE, AK 99508
(907) 729--3579
FAX (907) 72S-4046
e-ma~: c;park@anrhc.org
;::,!c C:~Ur-.e:si(D<1r!-:.(.'1:o"'{:iE.~~~:Mc~b:li!y Stvdft,.~ ~ 13i(;h:Ja!.>J~;ui:.'~Ct'!t.!alil:.a!ur..~HR. Fea~1b:l:l): S'iud;v . Co=<s,:<J .... SX)~Ii
1834 Gal/yr
New Power Plant HX
15 MBH
80 MBH
Estimated Boiler AFUE:
Community Estimated Fuel Price :
Froz:en Soil Conductivity
Heat Sales Agreement:
17046
(Generator Module H<!i!t Lo~ds
74"
$6.80 per gal
0.12 (Between o.os & 0.15 BTIJHIFt)
0% Mlddle Kuskokwim Elect Coop
Tha heating load from stor.oge buildings is approximate. A design load of approximately 50 BTIJ I SF at
desig n conditions was assumt!d based on small footprint buildings with poor insulation and high
GeMrator Building Heat LoS5 15000
,.star.og e modules Heat tos ~
Total 15000 BT\JIHr
He-a t loss/ degree of OSA temp: 135 BTU/Hr• deg F
ANTHC DEHE
Alaslr.. Native Tnbal Health Conscrtium
Projecl Name: Chuathbaluk Heat Recovery Project
Project Number. TBD
Engineer: CP
Revision Date: OB-Feb-13
Print: 16-Sep-13
Calculations (Continued)
Che<.ked:
Loop :Z Buried Wooter Main He•t Loss:
Design Air Tempe,..ture
Design Ground Surfuce Temperature
Insulation:
C!rrlerPipe:
I nsulatian K value
Gro und K value
Pipe R value=
D~pth of Bury=
3Urled Pipe
D!.Slan Heat Loss:
Heat Loss I Foot
Heat loss I Degree OSA temp
Loop ~Buried Water Main Heat Loss:
Dt!'stsn Air Temperature
Design Ground Surface Temperature
)nsulatlon :
ll:llrrlcr J>ipe:
fos-utatiott K value
Ground K value
Pipe R value =
Depth of Bury=
BOried Pipe
Design Heat loss:
Heat Loss I Foot
Heat Loss I Degree OSA temp
Peak StOfilgeTan\ HoM Lo.,.:
Heat Loss I deVI!l< of OSA temp :
Raw WIU!r Htal.litf.Lo:od
Raw water anticipated flow rate
~w water temper4!ture:
tTreatmmt Process Temperature
Raw water heating load:
Heat Recovery Utilization Simulation Work Sheet
-40 Degrees F
28 Degrees F
4 Inch rna m ins.
4 Pipe OD (Inches)
0.017 lHUH I (ft x Deg F)
0.12 BTUH I (ft x Deg f)
10.286 Ft x hr x D~g F
8.0 f•et
4021 Ft
7,551 BTUihr
1.88 BTU/hr
189
40 Degrees F
28 Degrees ':
4 Inch foam ins.
4 Pipe OD (lnchesi
0.017 BTUH / (ft x Deg F)
0.12 BTUH /(ftxDegF)
10.286 Ft x hr x Deg F
8.0 foet
8044 Ft
15,106 BTUihr
1.88 BTU/hr
343
15,000 BTU I Hr
167 BTU/ Hr
0 GPM
35 Deg F
37 Deg F
o eru (fir
DM~ of~Health& Engir~ng
3900 .\mh3ssador Dr. Suite 301
ANCHORAGE. AK 98508
(907) 729-3579
FAX (907) 729-40'·6
e-mail: cparl<@anthc..org
Fi1~: C:'-U~'.cp-311<\Ch.~r:t,'·i::n~'VY"Ft"~i:MiitySk.'dit.'"S Mi3\Chuul!1Miu<.(Ghr.i.i!tt'lb3lu~-HR_F&-"j$1bi!ltv_&.'ocy_Cai~.XLSX)S~.oon
lllw'i4!d He•t Rec:overy He•t Loss
lbriiJr> Heat Recovery loop Temperature
Oe>l&n Air fern perature:
ln5uta1lori;
Pipe:
Insulation K value
R value=
Lonsih of Above ground Pipe
Design Heat Loss:
HUt Loss /.De~ OSA ti!JIIp
Loop.3 All<>v~Ground Water Main Heat Loss
OMJgn Heat Recovery loop Temperature
~Air Temperature:
tnll"ulotton:
l'lpc:
Insulation K value
R value=
length of Above ground Pipe
Design Het~t Loss:
,Heat Loo.s :f ~ OSA ll!mp
Wstlne WTP Heat Loss :
BuRdin g design heating loss:
H ... t loss I d~ of OSA t emp
180 Degrees F
28 Degrees F
1 Inch foam ins.
4 Pipe OD (Inches)
0.16 BIU X in l(ft'2 xhr> Dog F)
4.840 F!'2 x hr x Deg F
50Ft
1,644 BTU/hr
32.89 BTUHift
~Q.S
50 Degrees F
-40 Degrees F
2 Inch foam ins_
4 Pipe OD (lnthes)
0.16 BTU X in ( (ft'2 X hr x Deg F)
8.27~ Ft'2 x hr x Deg F
500Ft
5,695 BTU/hr
11.39 B!UHift
53..3
2.0,000 BTUIH
1.9tl.5 BlH/ff" Oe:g f
Heat Recovery Utilization Simulation Work Sheet
ANTHC DEHE
Alaska Native Tribal Health Consortium
Project Name: Cllualhbaluk Heat Recowry Project
Project Number: TBD
Engineer: CP
Revision Dale: 08-Feb-13
Print: 16-Sep-13
Calculations (Continued)
Month
anua~ I
februa~
March
,O.pril
May
~un~
!uly I fA ug
,Sept
Oct
Nov
De<
Month
~anuary
rebru:ary
March
Awil
M•v
June
)uly
Aug
Sept
Occ
Nov
Dec
Checked:
KWH/Month
(Estimated
from PCE) Days/ Month
29760 ' 31
22968 · 29
23760 30
23760 •o l 22320 31
14400 30
14880 31
14880 j
31 1 23760 30
24552 31
23760 30
29760 31
WTP Buildina I J
HeatlOS5 1
WSTHeat I
(MBH) loS!(MBH)
I 61 11
11 6
10 5
7 3
5 1
3
2 -
2 -
4 -
7 3
9 5
11 6
Available Rea>vered Heat Estimate
I Estimated
Htg Degree HtaDesree HtgDe&ree MBTU/H
Days/ Month Days I Monti! Days f Month reJected from
AYKW (40F) (60F) (180F) Engines
401 1,193 1,813 5,533 721 33 1,028 1 1,608 5,088 I 59
33 966 1,566 5,166 59
33 575 1,175 4,775 59
30 118 738 4,458 54
20 -410 4,010 36 1
20 I 280 4,000 36
201
-' 355 4,075 36 !
33 -587 4,187 sg i
33 465 1,085 4,805 59 1
33 828 1.428 5,028 59 1
40 1,104 1,724 5,444 72
--
WTP Building Heat to ..
Raw Water Cln: Loop 1 Circ loop 2 I Circ Loop 3
HeiltAdd Heat Add Heat Add Heat Add Sum Heat
(MBH) (MBH) (MBH) (MBH) Demand
-6 li 12 42
~ 7 £j 13 42
-6 6 12 39
-~I ·3 1 7 25 . 1 2 8
---0 3
I --
I
. I 0 2'
--0 2
-0 4
3 3 6 21
5 5 10 34
-6 5 11 !9
I
Note: Ba!i:.at.l~ 01 the o~ur nc:t! bel.\•Je..-=n t=zc WTP ~nd :taw~• plim l, he-~: retQ~,tsiJinif~ m m~.·tuig 'h.c.Jt mto tht:
circu i~tm~ IA1~ llh~ and trtHl~ie:rfng it to oni.! other loop at en~ WTP.
DivisiQfl of EnvU<mmental Healrh & £ngi~Vfl~U!9
3900 Ambassador Dr. Suite 301
ANCHORAGE, AK 995!la
(907) 729-3579
FAX (907) 729 40<'6
e--maif: cpari:@anthc,or:1
r-' ;\e C ~U~r;\cporio:~Cl'o-.;.Ofi•E:nci'G!"\F~ot.ibility Sh.:dies 2013\C·hLJat.'lb3iul(l[f,'hLlalhb<llui<. •. HR. FoasiMity .. Siu~ _Cal~t~.XLSX'";S!wet1
Estimated
Parasitic Available
Cooing Heat for
Losses recovery
(MBH) (MBH)
8 64'
8 52
7 52
5 54
3 51
2 34
1 35
2 34
3 57
s 55
6 53
8 64
ANTHC DEHE
Aloska Native Tribe/ Hea/fh Consortium
Project Name: Chuathbaluk Heat Recovary Project
ProJect Number: TBD
Engineer: CP
Revision Date: 08-Feb-13
Print 16-Sep-13
Calculations (Continued)
Month
lcr:uary
februory
Marl:h
ft<oril
May
June
luly
ll.ug
Sept
Oct
Nov
Dec
I
Checked:
Estimated
Avai ... ble
Heat for WTP Bulldlnc
recovery Heat Loss
(MBH) (MBH)
64 ul
52 11
52 1()
54 7
51 5
34 3
35 2
34 2
57 4
ss 7
53 9
64 ll
Heat Recovery Utilization Simulation Work Sheet
Available Recovered Heat .
Storage Tank I Clrc Loop 1 Circ I.Dop 2 Circ Loop 3 1 Total Heat
Heat Add Heat Add Heat Add Heat Add l Derruond
(MBH) (MBH) (MBH) (MBHI (MBH)
61 6 e 12 1 42
6 7 6 13 42.
5 6 r £ ]]. 39
~I 4 :; 7 25
l l ~~ 8
o; 0 OJ 3 oj al Oj 2
ill 0, Oj 2
ol ~I 0 0 4
l ! 3 6 1 21
Si 5 .. 10 34
oi ,, 5 11 3~
I
Division of Environmental Hea/fh & E~
3900 Ambassador Dr. Suite 30t
ANCHORAGE, AK 99508
(907) 729-3579
FAX (907) 729-4046
e-mail: cpark@antllc. org
File: C:':.lbe~\c:tm.rkiC!;c;::l)~Eoorgy'.F'I!lllmb!iity Stuci~ 21):3\('..h~!'l~!l!!<.\(C!'l:.ta!hbaluk_HR_ F~!bi~ijy_Stutly_C<aiC3,XlSX}ShtN:tt1
Estimated Fuel Savings
Recovered
I l Remvered j Recovered
Heat Recovered Heat Avoided
Heat Benefit Total Heating Demand Heat Avoided Fuel Cost
(MBH) Month Demand (Gal) (Gal) Fuel Use (Gal) (Dollars)
42 J~H'HJtlry I 312 1 312 312 $2,122
42
39
February I 292 292 292 $1.984
March 282 282 282 $1,921
25 April 179 179 179 $1,219
8 May 8 63 63 $425
3 June l9 19 l9 S129
2 Juiy l3 13 13 $88
2r Aug 16' 16 16 $111
41 5•pt 27 27 27 S184
21 Oct 154 154 154 $1,04"7
34' Nov 246 246 246 $1,673
39" Dec 291 291 291 $1,978
Total l.B94 1894 1894 SU,SBL