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Chuathbaluk_AEA_Round_6_Final_Application
City of Chuathbaluk 2 .c . -V " ". Image from Alaska Division of Community & Regional Affairs, AK Community Database Information Summaries Application for Renewable Energy Fund Grant Alaska Energy Authority Round VI Chuathbaluk Heat Recovery September 2012 AEA Application Contents • Application • Authorized Signers & Resolution • Letters of Support • Resumes • Supplemental Documents Renewable Energy Fund Round 6GEL - o Grant Application i � -, ENERGY AUTHORrrY Application Forms and Instructions This instruction page and the following grant application constitutes the Grant Application Form for Round 6 of the Renewable Energy Fund. An electronic version of the Request for Applications (RFA) and this form are available online at: http://www.akeneLgyauthority.org/RE Fund-6.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(cD-aidea.org. • If you are applying for grants for more than one project, provide separate application forms for each project. • Multiple phases for the same project may be submitted as one application. • If you are applying for grant funding for more than one 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 prChuathbalukinary 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 satisfied 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. 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 13-006 Application Page 1 of 20 7/3/2011 Renewable Energy Fund Round 6 Grant Application SECTION 1 — APPLICANT INFORMATION ONKD ENERGY AUTHORITY Name (Name of utility, IPP, or government entity submitting proposal) City of Chuathbaluk Type of Entity: Local Government Fiscal Year End Tax ID # Tax Status: For -profit or Xnon-profit ( check one) Mailing Address Physical Address P O Box CHU Water Treatment Plant Chuathbaluk, AK 99557 Chuathbaluk, Alaska Telephone Fax Email 907-467-4115 1 907-467-4180 Coc99557@yahoo.com 1.1 APPLICANT POINT OF CONTACT / GRANTS MANAGER Name Title Carl Remley Manager, Energy Projects, ANTHC,DEHE Mailing Address 3900 Ambassador Drive Suite 301, Anchorage AK 99508 Telephone Fax Email 907-729-3729-3543 907-729-4047 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 in accordance with 3 AAC 107.695 (a) (1), or X A local government, or A governmental entity (which includes tribal councils and housing authorities); Yes 1.2.2 Attached to this application is formal approval and endorsement for its project by its 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. Yes Yes 1.2.4 If awarded the grant, we can comply with all terms and conditions of the attached grant form. (Any exceptions should be clearly noted and submitted with the application.) 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. AEA13-006 Grant Application Page 2 of 20 7/3//2012 Renewable Energy Fund Round 6 GOOD Grant Application 411111111111111111D ENERGY AUTHORITY SECTION 2 — PROJECT SUMMARY i This is intended to be no more than a 1-2 page overview of your project. 2.1 Project Title — (Provide a 4 to 5 word title for your project) Heat Recovery for the Water System 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. Chuathbaluk, AK. The existing power plant and water system. 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 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. Chuathbaluk 61.574708,-159.24408 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 Biomass or Biofuels Hydro, including run of river Transmission of Renewable Energy Geothermal, including Heat Pumps Small Natural Gas X Heat Recovery from existing sources Hydrokinetic Solar Storage of Renewable Other (Describe) 2.3.2 Proposed Grant Funded Phase(s) for this Request (Check all that apply) Pre -Construction Construction Reconnaissance X Design and Permitting Feasibility X Construction and Commissioning Conceptual Design 2.4 PROJECT DESCRIPTION Provide a brief, one -paragraph description of your proposed project. AEA13-006 Grant Application Page 3 of 20 7/3//2012 Renewable Energy Fund Round 6 Grant Application 4=:" -- r� MEWD ENERGY AUTHORITY This project will provide waste heat from the existing electrical power plant to the water system. The estimated fuel oil savings to the community water plant is projected to be 1,400 gallons of heating oil per year. For more detailed information, see the attached Chuathbaluk, Alaska 2012 Heat Recovery Feasibility Study. 2.5 PROJECT BENEFIT Briefly discuss the financial and public benefits that will result from this project, (such as reduced fuel costs, lower energy costs, 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 1,400 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. J Based on the attached 2012 Heat Recovery Feasibility Study, the cost to deploy this project is estimated to be $199,863 (2014 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 $5,996 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. $ 199,863 2.7.2 Cash match to be provided $ 0 2.7.3 In -kind match to be provided $ 5,996 2.7.4 Other grant applications not yet approved $ 0 2.7.5 Total Grant Costs (sum of 2.7.1 through 2.7.3) $ 205,859 Project Costs & Benefits (Summary of total project costs including work to date and future cost estimates to get to a fully operational project) 2.7.6 Total Project Cost (Summary from Cost Worksheet $ 199,863 including estimates through construction) 2.7.7 Estimated Direct Financial Benefit (Savings) 2.7.8 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 your application (Section 5.) $ 9,500 AEA13-006 Grant Application Page 4 of 20 7/3//2012 Renewable Energy Fund Round 6 isou Grant Application MOE) ENERGY AUTHORITY 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). 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. At present, 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 implementing energy audit recommendations in several villages. 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 the schedule below. 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. Milestones Tasks Start Date End Date Project Planning Execution of Grant and Agreements 7/1/2013 9/1/2013 Conduct kickoff meeting 10/1 /2013 10/1 /2013 35 % design with cost estimate 10/1/2013 12/1/2013 Final Design Complete 95 % design with cost estimate 12/1 /2013 3/1 /2014 Construction bid documents 3/1 /2014 4/1 /2014 Final Business Plan 3/1/2014 5/1/2014 Negotiated heat sales agreement 12/1 /2014 4/1 /2014 AEA approves moving ahead to construction 5/1/2014 5/1/2014 Construction Phase Start Preconstruction meeting on schedule and cost estimate with ANTHC construction department. 8/1/2014 8/1/2014 Material procurement and mobilization 8/1/2014 11/1/2014 Onsite construction 9/1/2014 2/1/2015 Conduct periodic site visits 9/1/2014 2/1/2015 Conduct Substantial Completion Inspection 3/1/2015 3/1/2015 Start-up and Testing Startup and testing 3/1/2015 4/1/2015 Clear punch list Items 3/1/2015 5/1/2015 Project closeout 5/1 /2015 8/1 /2015 AEA13-006 Grant Application Page 5 of 20 7/3//2012 Renewable Energy Fund Round 6 41111111111D Grant Application 400r^) ENERGY AUTHORITY 3.3 Project Resources 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 the ANTHC Lead Mechanical Engineer and the 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 treatment 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. AEA13-006 Grant Application Page 6 of 20 7/3H2012 Renewable Energy Fund Round 6 •�7 Grant Application 411111111111111DENERGYAUTHORITY SECTION 4 — PROJECT DESCRIPTION AND TASKS • The level of information will vary according to phases) 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. 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. The heat available from the power plant significantly reduces that required by the water system, as indicated by the attached 2012 Heat Recovery Feasibility Study. The only realistic alternative to utilizing the recovered heat is to continue to burn 1,400 gallons of fuel oil to provide the heat required by the water system. More specifics are contained in the attached 2012 Heat Recovery Feasibility Study. 4.2 Existing Energy System 4.2.1 Basic configuration of Existing Energy System Briefly discuss the basic configuration of the existing energy system. Include information about the number, size, age, efficiency, and type of generation. 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. This is used for the referenced feasibility study. 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 Energy Resources Used Briefly discuss your understanding of the existing energy resources. Include a brief discussion of any impact the project may have on existing energy infrastructure and resources. The existing water treatment plant (WTP) is hydronically heated. The city reports fuel consumption of 1,834 gallons/year. 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. 4.2.3 Existing Energy Market Discuss existing energy use and its market. customers. AEA13-006 Grant Application Discuss impacts your project may have on energy Page 7 of 20 7/3//2012 Renewable Energy Fund Round 6 Grant Application ENERGY AUTHORITY eating 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 1,400 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, 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 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-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. 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-in 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. AEA13-006 Grant Application Page 8 of 20 7/3//2012 Renewable Energy Fund Round 6 Grant Application � ENERGY AUTHORUTY 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-in 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 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 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 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. 4.3.4 Environmental Address whether the following environmental and land use issues apply, and if so how they will be addressed: Threatened or Endangered species Habitat issues Wetlands and other protected areas AEA13-006 Grant Application Page 9 of 20 7/3//2012 Renewable Energy Fund Round 6 Grant Application Archaeological and historical resources Land development constraints Telecommunications interference m Aviation considerations ■ Visual, aesthetics impacts • Identify and discuss otherpotential barriers _ 41101U ENERGY AU71-10RIT'Y 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 grant funding ■ Applicant matching funds — loans, capital contributions, in -kind • Identification of other funding sources Projected capital cost of proposed renewable energy system • Proiected development cost of DroDosed renewable enerav system The total anticipated project cost is $205,859, including ANTHC's in -kind contribution. A detailed construction cost estimate is contained in the attached 2012 Heat Recovery Feasibility Study. The requested grant funding is $199,863. The remaining $5,996 is being donated 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.) 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 of a 30-year life. Periodic minor maintenance costs will be limited to valves, pumps, and possibly some replacement glycol. Approximately $500 per year should be budgeted for maintenance. 4.4.3 Power Purchase/Sale The power purchase/sale information should include the following: AEA13-006 Grant Application Page 10 of 20 7/3//2012 Renewable Energy Fund Round 6 Grant Application ENERGY AUTHORITY • 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 A standard Heat Sales Agreement will be executed between the power company and the City of 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. Renewable Energy Source The Applicant should demonstrate that the renewable energy resource is available on a sustainable basis. Annual average resource availability. Equivalent of 1,400 gallons diesel oil of surplus plant heat Unit depends on project type (e.g. wind speed, hydropower output, biomass fuel) a) b) Existing Energy Generation and Usage Basic configuration (if system is part of the Railbelt' grid, leave this section blank) i. Number of generators/boilers/other John Deere, 37,64,78 Kw Units ii. Rated capacity of generators/boilers/other iii. Generator/boilers/other type Fuel Oil Boilers in water treatment plant iv. Age of generators/boilers/other 5+ years v. Efficiency of generators/boilers/other 75% Annual O&M cost (if system is part of the Railbelt grid, leave this section blank) i. Annual O&M cost for labor $100 ii. Annual O&M cost for non -labor $100 c) Annual electricity production and fuel usage (fill in as applicable) (if system is part of the Railbelt grid, leave this section blank) i. Electricity [kWh] ii. Fuel usage Diesel [gal] Other iii. Peak Load iv. Average Load 1,400 Gallons of Number 1 fuel oil equivalent of surplus heat 1 The Railbelt grid connects all customers of Chugach Electric Association, Homer Electric Association, Golden Valley Electric Association, the City of Seward Electric Department, Matanuska Electric Association and Anchorage Municipal Light and Power. AEA13-006 Grant Application Page 11 of 20 7/3//2012 Renewable Energy Fund Round 6 _ Grant Application ENERGY AUTHORFY v. Minimum Load vi. Efficiency vii. Future trends d) Annual heating fuel usage (fill in as applicable) i. Diesel [gal or MMBtu] 1,400 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 Surplus waste heat from the power plant (Wind, Hydro, Biomass, other) [kW or MMBtu/hr] b) Proposed annual electricity or heat production (fill in as applicable) i. Electricity [kWh] ii. Heat [MMBtu] 1,400 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] iii. Wood [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 Project Benefits $199,863 $1,000 every 5 years a) Amount of fuel displaced for i. Electricity ii. Heat 1,400 gallons of Number 1 fuel oil equivalent of surplus heat iii. Transportation b) Current price of displaced fuel AEA13-006 Grant Application $6.80/gallon per heat recovery feasibility study Page 12 of 20 7/3//2012 Renewable Energy Fund Round 6 Grant Application c) Other economic benefits d) Alaska public benefits Power Purchase/Sales Price a) Price for power purchase/sale Project Analysis a) Basic Economic Analysis Project benefit/cost ratio Payback (years) $9,500 in fuel oil MMIW�-) ENERGY AUTHORITY r .72 20.7 (heat recovery feasibility study) 4.4.5 Proposed Biomass System Information Please address the following items, if know. (For Biomass Projects Only) • What woody biomass technology will be installed (cord wood, pellets, chips, briquettes, pucks). • Efficiency of the biomass technology. • Thermal or electric application. • Boiler efficiency. • Displaced fuel type and amount. • Estimated tons of wood pellets or chips (specify) to be used per year, and average moisture percentage. • Estimated cords of wood to be used per year, specify whether dry or green and the moisture percentage. • 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? AEA13-006 Grant Application Page 13 of 20 7/3//2012 Renewable Energy Fund Round 6 Grant Application SECTION 5— PROJECT BENEFIT GEMID ENERGY AUTHORrrY 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 • Anticipated annual revenue (based on i.e. a Proposed Power Purchase Agreement price, RCA tariff, or cost based rate) • Potential additional annual incentives (i.e. tax credits) • Potential additional annual revenue streams (i.e. green tag sales or other renewable energy subsidies or programs that might be available) • Discuss the non -economic public benefits to Alaskans over the lifetime of the project The potential fuel displacement is 1,400 gallons of fuel used by the water system. The cost of the fuel is $6.80 per gallon as of Summer 2012. The annual cost of fuel displaced for the water treatment plant therefore equals $9,500. Over the 30-year life of the heat recovery system, the savings will be $190,000 in today's dollars. 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. 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 treatment plant and washeteria by reducing its operating cost by $9,500 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. AEA13-006 Grant Application Page 14 of 20 7/3//2012 Renewable Energy Fund Round. 6 Grant Application 'SENERGYAUrHORrry 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 SUPORT Discuss what local support or possible opposition there may be regarding your project. Include letters of support from the community that would benefit from this project. 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 mach you want 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. AEA13-006 Grant Application Page 15 of 20 7/3//2012 Renewable Energy Fund Round 6 Grant Application 411111111111111U) ENERGY AUTHORITY Source of Matching Funds: DESIGN PHASE Anticipated FEE- Fund Grantee Cashlln- Completion Grant kindWederal TOTALS Milestone or Task Date Funds Matching Grants/Other State Grants/Other (List milestones based on phase and type of project. See Milestone list below. ) In -kind ANTHC Project Management 9/1/2013 $0 $637 project/program $637 Throughout management Conduct Kick-off Meeting 10/1/2013 $1,000 $1,000 35 % design with Cost Estimate 10/1/2013 $5,000 $5,000 Complete 95 % Design with 12/1/2013 $11,218 $11,218 Cost Estimate Construction Bid Documents 3/1/2014 $2,000 $2,000 Final Business Plan 3/1/2014 $1,000 $1,000 Negotiated heat sales 12/1/2014 $1,000 $1,000 agreement AEAApproves moving ahead to 5/1/2014 $0 $0 construction TOTALS $21,218 $637 $21,855 Budget Categories: Direct Labor & Benefits $0 Travel & Per Diem $0 Equipment Materials & Supplies Contractual Services * $21,218 $637 $21,855 Construction Services Other TOTALS $21,218 $637 $21,855 AEA13-006 Grant Application Page 16 of 20 7/3//2012 Renewable Energy Fund Round 6 �a Grant Application ONEWD ENERGY AUTHORITY Source of Matching Funds: Anticipated RE- Fund Cashlin- CONSTRUCTION PHASE Camplation Grant Grantee kind/Federal TOTALS Milestone or Task Date Funds Matching Grants/Other State Gra ntslOther (List milestones based on phase and type of project. See Milestone list below. ) Project Management Througout 5/1/2015 $5,359 $5,359 Pre-Const. meeting with Schedule and cost estimate with 8/1/2014 $5,000 $5,000 ANTHC construction department Material Procurement and 8/1/2014 $160,000 $160,000 Mobilization On -site Construction 9/1/2014 -$18,355 -$18,355 Conduct periodic site visits 9/1/2014 $5,000 $5,000 Conduct Substantial Completion 3/1/2015 $5,000 $5,000 Inspection Startup and Testing 3/1/2015 $10,0001 $10,000 Clear Punch list Items 3/1/2015 $10,000 $10,000 Project Closeout 5/1/2015 $2,000 $2,000 $178,645 $5,359 $184,004 Budget Categories: Direct Labor & Benefits $200,000 $40,000 Travel & Per Diem $20,000 $5,000 Equipment Materials & Supplies $0 Contractual Services * -$41,355 $5,359 $139,004 Construction Services Other TOTALS J $178,6451 $5,359 $184,004 AEA13-006 Grant Application Page 17 of 20 7/3//2012 Renewable Energy Fund Round 6 Grant Application ®®ENERGY AUTHORITY 1. 2. 3. 4. 5. 6. 7. ct Milestones that s Reconnaissance Project scoping and contractor solicitation. Resource identification and analysis Land use, permitting, and environmental analysis PrChuathbalukinary design analysis and cost Cost of energy and market analysis Simple economic analysis Final report and recommendations Duld be addressed Feasibility 1. Project scoping and contractor solicitation. 2. Detailed energy resource analysis 3. Identification of land and regulatory issues, 4. Permitting and environmental analysis 5. Detailed analysis of existing and future energy costs and markets 6. Assessment of alternatives 7. Conceptual design analysis and cost estimate 8. Detailed economic and financial analysis 9, Conceptual business and operations plans 10. Final report and recommendations Design and 1. Project scoping and contractor solicitation for planning and design 2. Permit applications (as needed) 3. Final environmental assessment and mitigation plans (as needed) 4. Resolution of land use, right of way issues 5. Permit approvals 6. Final system design 7. Engineers cost estimate 8. Updated economic and financial analysis 9. Negotiated power sales agreements with approved rates 10. Final business and operational plan Construction 1. Confirmation that all design and feasibility requirements are complete. 2. Completion of bid documents 3. Contractor/vendor selection and award 4. Construction Phases Each project will have unique construction phases, limitations, and schedule constraints which should be identified by the grantee 5. Integration and testing 6. Decommissioning old systems 7. Final Acceptance, Commissioning and Start-up 8. Operations Reporting AEA13-006 Grant Application Page 18 of 20 7/3//2012 Authorized Signers & Resolution Renewable Energy. Fund Round 6 Grant A lication ENERGY AUTHORITY �+ SECTION 10 —AUTHORIZED SIGNERS FORM Community/Grantee Name: City of Chuathbaluk Regular Election is held: Oc_F o 6 e r' Authorized Grant Sign r s Date: 2n Z Printed Name Title Term Signature r r L. I'd' A h e ✓- p r►me,5 5 m i l"k vice 14AYvV- 6 13 Ire, 5,mea 20/1-/ e-n16e r authorize the above person(s) to sign Grant Documents: (Highest ranking organization/community/municipal official) Printed Name ✓ v"l Grantee Contact Information: Mailing Address: PO Box CHU Phone Number: 907-467-4115 Fax Number: 907-467-4180 Title E-mail Address: coc99557@yahoo.com Federal Tax ID #: 512 -OO�.S Term I Signature Please submit an updated form whenever there is a change to the above information. AEA13-006 Grant Application Page 19 of 20 7/3H2012 Renewable Energy Fund Round 6 ®_ Grant Application ©ENERGY AUTHORITY SECTION 11 —ADDITIONAL DOCUMENTATION AND CERTIFICATION SUBMIT THE FOLLOWING DOCUMENTS WITH YOUR APPLICATION: A. Contact information, resumes of Applicant's Project Manager, key staff, partners, consultants, and suppliers per application form Section 3.1 and 3.4. Applicants are asked to separate resumes submitted with applications, if the individuals do not want their resumes posted. B. Letters demonstrating local support per application form Section 8. C. An electronic version of the entire application on CD per RFA Section 1.7. D. Governing Body Resolution or other formal action taken by the applicant's governing body or management per RFA Section 1.4 that: - Commits the organization to provide the matching resources for project at the match amounts indicated in the application. - Authorizes the individual who signs the application has the authority to commit the organization to the obligations under the grant. - Provides as point of contact to represent the applicant for purposes of this application. - Certifies the applicant is in compliance with applicable federal, state, and local, laws including existing credit and federal tax obligations. E. 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 Iaws including existing credit and federal tax obligations and that they can indeed commit the entity to these obligations. Print Name L-4 � if Signature Title , r Date AEA13-006 Grant Application Page 20 of 20 7/3//2012 Council Resolution for Alaska Energy Authority Funding Renewable Energy City of Chuathbakuk RESOLUTION # A Resolution requesting Funding from the Alaska Energy Authority, Alaska Renewable Energy Fund and commitment by the City of Chuathbakuk WHEREAS: The City Council, hereinafter called the Council, is a governing body in the City 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 Consortium to work with The City of Chuathbakuk to develop, implement and manage the project for which we are seeking funding from AEA NOW THEREFORE BE IT RESOLVED; that the Council hereby requests that the AEA appropriate funds through the Renewable Energy Fund to recover heat from the Middle Kuskokwim Electric power plant and utilize that heat in the City water treatment plant BE IT FURTHER RESOLVED; that the Council grants authority to the individual signing this resolution to commit The City of Chuathbaluk to obligations under the grant BE IT FURTHER RESOLVED; The City of Chuathbaluk is in compliance with applicable federal, state and local laws including existing credit and federal tax obligation BE IT FURTHER RESOLVED; that ANTHC is hereby authorized through a Cooperative Project Agreement to negotiate, execute, and administer any and all documents, contracts, expenditures and agreements 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 Council in carrying out this project. I, the undersigned, hereby certify that the. Council is composed of 42 members of who _ —9, constituting a QUORUM were present and that the foregoing resolution was PASSED AND APPROVED by the Council this _ day of 2012. Vote: _ p yeas _Q_Nays Signed President ATTEST: Council Member Letters of Support *Alaska Native Tribal Health Consortium 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 September 20, 2012 Honorable James Smith Mayor, City of Chuathbaluk PO Box CHU Chuathbaluk, Alaska 99557 Dear Mayor Smith: Re: Letter of Commitment for matching funds to a proposal for Alaska Energy Authority, Renewable Energy Fund Round VI. 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 Savoonga in your proposed project to the Renewable Energy Fund of the Alaska Energy Authority (AEA). The Savoonga Heat Recovery Project 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 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, O'K en M. Weaver, P.E. Senior Director Resumes Supplemental Documents CHUATHBALUK, ALASKA HEAT RECOVERY STUDY PREPARED BY: Alaska Native Tribal Health Consortium Division of Environmental Health and Engineering 1901 Bragaw St, Ste 200, Anchorage AK 99508 Phone (907) 729-3600 / Fax (907) 729-4090 September 5, 2012 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 1,400 gallons. The estimated cost for the heat recovery project is $196,000. The simple payback based on a fuel cost of $6.80/gallon is 20.73 years. Assuming construction begins in summer of 2014, project cost with 2 years of 3% escalation is $208,000. 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. 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 development of this report, including, but not limited to, the proposed arctic piping route, building heating loads, and flow rates and pressure drops of the power plant heat recovery system. It is anticipated that refinements in arctic pipe size and routing, pump and heat exchanger sizing, and other design elements will be required as the project progresses to final design. Available information was obtained from AEA regarding the 2011 power plant electrical loads. End -user annual fuel use was obtained from a variety of sources, including the City and engineering estimates. Where 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 74% 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 for the water system is 1,400 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 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 Circulating Water Loop 1: Circulating Water Loop 2: Circulating Water Loop 3: Water Storage Tank: Total Estimated Annual Fuel Use (Gallons) 320 287 618 169 1,393 Estimated Heat Delivered (Gallons) 320 287 618 169 1,393 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 70F 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 100 ft of 1-1/2" HDPE 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 = 10 ft Initial Selection: Grundfos UPS 26. P-HR2: Heat injection pump at power plant. Flow = 6 GPM, Head = 10 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 Model 155 differential temperature control BTU Meters: BTU-1 WTP: KEP BTU meter with V magnetic flow meter and matching temperature elements. 6.0 CONCLUSIONS AND RECOMMENDATIONS Estimated construction costs were determined based on prior recent heat recovery project experience, and include materials, equipment, freight, labor, design, construction management, and startup and testing. All work at the power plant and WTP, along with design and construction management/administration for the complete project, is included in the Base Project cost. Incremental costs for arctic pipe, end -user building renovations, and overhead and freight are estimated individually for each of the other end -user buildings (refer to attached cost estimate). The estimated project cost for is $196,000. Estimated fuel savings are about 1,400 gallons. Using a 2011 fuel price of $6.80/gallon results in estimated community savings of $9,500 for a simple payback of 20.7 years. Funding for design and construction isn't expected before fall 2013, with construction occurring summer of 2014. With 2 years of escalation at 3% per year, the estimated project cost in 2014 is $208,000. nl CHUATHBALUK, ALASKA ANTHC RECOVERED HEAT STUDY CM.WCH/ SEA [ LRMI[H�A� s""D )� NORION SOUND sr. l e WATNEW ISL IYNq BE'"" CHUATHBI Is L"D Saw IAMI BERINC SEA y Kic 10. 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ISLAND A[FN f/AN Q }ip f,j 9A SHEET LIST TABLE SHEET NUMBER SHEET TITLE 1 COVER SITE PLAN 2 3 SYSTEM SCHEMATIC I 4 SYSTEM SCHEMATIC II 5 DETAILS ARCT/C OCEAN CANADA Alaska Native CHUATHBALUK, AK Tribal Health Consortium ANTHC RECOVERED HEAT STUDY Division of Environmental Health and Engineering DATE: 07-25-2012 LAYOUT: COVER 1001 Br.g—SteM, SuIIU 200 ANCHORAGE, ALASKA, 0050E-MO DRAWN BY: TH FILE NAME: CHU—G—STSITE (007)72046 0 CHECKED BY: WF SHEET 1 OF 5 xo�n mom=W Qm L>msodx �^ n ° x >=mmo�i m a m c S < go®o n� =o 3 P� 1= m USER: 6CU5IER FILE: LOOP 3 RETURN LOOP 3 SUPPLY LOOP 1 RETURN LOOP 1 SUPPLY LOOP 2 RETURN LOOP 2 SUPPLY FLUI DAIS fR5Rc.2 3:43 PN TO/FROM WTP BOILERS I EXISTING I HEAT EXCHANGER EXISTING I PUMPS I I I I I I I ET-1 C I ITO/FROM C I WST I HX-2 I I l II I I I I I L.----------------------------_.---- -- WTP BUILDING .j HEAT RECOVERY PIPING SCHEMATIC A 1 NT$ � o i LNn i N n o Z N 0T ci = mC o= m w x N D mmo xi Z c D C C v � o n v+ n x C) I U5LK: ecUSILR rat: PLOT DATE: ■ 2n/ZTi2 3:43 PM F-----------------I FROM GENERATORS 1 I I I I I I I I I ----------------J GENERATOR BUILDING HEAT RECOVERY PIPING SCHEMATIC A1 FROM GLYCOL HEAT TRACE LOOP 2 TO GLYCOL HEAT TRACE LOOP 2 USER EKU53ER FILE P: �CHWiN9.4.LK�CHu.]ES1GH�tNl1-VF�OQ�GiV�4sRGr_SiIIQr�piu-."TSTSISEONG PLOT DATE 7/25MI2 3:43 PM 6" LEVELING COURSE COMPACTED s o n ONLY IN ROADWAYS COMPACTED BACKFILL CL m Z EXISTING GROUND m pf m 3 c HAZARD TAPE Fs m = 0) go INSTALL AWG 12 SOLID c COPPER TRACER WIRE WITH YELLOW POLYCOATING. TRACER WIRE MUST BE 600V m > ' RATED AND UL LISTED x mFOR DIRECT BURIAL. rn '•,'. `. n (2) 1 1/2 HDPE IN 4 4" CARRIER N N /4 7-» 12" ARCTIC PIPE WITH n 4" HDPE CARRIER > o rn rn z a xx i Ul a c r1%�/% rn m A� TYPICAL BURIED ARCTIC PIPE INSTALLATION 60 50 40 x ID 30 Co 2 20 10 0 Chuathbaluk Recovered Heat Utilization January February March April May June July Aug Sept Oct Nov Dec MONTH Storage Tank Heat Add (MBH) Circ Loop 1 Heat Add (MBH) Circ Loop 3 Heat Add (MBH) Circ Loop 2 Heat Add (MBH) Available Recovered Heat 350 300 250 200 J Q 150 100 50 0 Chuathbaluk Recovered Heat Utilization Gal Recovered Heat January February March April May June July MONTH Gal Boiler Heat Aug Sept 1= ict Nov Dec ANTHC DEHE Division of Environmental Health & Engineering Alaska Native Tribal Health Consortium 1901 Bragaw Street, Suite 200 Project Name: Chuathbaluk Heat Recovery Project ANCHORAGE, AK 99503 Project Number: TBD (907) 7293609 Engineer: WLF Checked: FAX (907) 7293729 Revision Date: 25Jul-12 e-mail: witliam.fraser@anthc.org Print: 25Jul-12 File: C Momments and SettingskWiliam.frasertApplimtion Data%OpenTexnDMTempuDEHE-#204774.v1Lhuathbaluk_HR_Feasibility_Sludy_Caks.XLSX]Sheetl Find: Feasibility of Heat Recovery from Chuathbaluk Generator Facility to existing WTP Given: Monthly KWH produced by existing Ouinhagak generator plant in 2011 Heating Degree Days for Quinhagak Glycol Heat Trace HX 68.6 MBH Tank Heat add HX 5.0 MBH Loop 1 Heat Add HX 50.0 MBH Loop 2 Heat Add HX 40.0 MBH Fuel Cons 1834 Gal / yr Loop 3 Heat Add HX 67.5 MBH Assumptions: Estimated Peak heat loss for 1 WSTs: 10,000 BTU/Hr New WST HX 10 MBH Estimated Peak heat loss for WTP Bldg 15,000 BTU/Hr New Power Plant HX 80 M8H Design Air Temperature: -40 Deg F Observed Water Temperature 50 Deg F Design Glycol Heat Trace Temperature 70 Deg F WTP buidling Space temperature 65 Deg F Heat Recovery Operating Temperature 180 Deg F 1800 BTU to radiators / KW Power Generated (conservative number) Estimated Boiler AFUE: 74% Community Estimated Fuel Price: $6 80 per gal Heat loss per below calculations Frozen Soil Conductivity 0.12 (Between 0.05 & 0.15 BTUH/Ft) Heat loads per below calculations Raw water production occuring in summer months only (seasonal water supply) Power consumption distribution based on PCE report & assumed load profile. 17046 Calculations: Loop 1 Buried Water Main Heat Loss: Design Air Temperature -40 Degrees F Design Ground Surface Temperature 28 Degrees F Insulation: 4 Inch foam ins. Cartier Pipe: 4 Pipe OD (Inches) Insulation K value 0.017 BTUH / (ft x Deg F) Ground K value 012 BTUH / (ft x Deg F) Pipe R value = 10.286 Ft x hr x Deg F Depth of Bury= 8.0 feet Buried Pipe 4481 Ft Design Heat Loss: 8,415 BTU/hr Heat Loss/ Foot 1.88 BTU/hr Heat Loss / Degree OSA temp 210 Generator Module Heat toads The heating load from storage buildings is approximate. A design load of approximately 50 BTU / SF at design conditions was assumed based on small footprint buildings with poor insulation and high Generator Building Heat Loss 1500 Storage modules Heat Loss Total 15000 BTU/Hr Heat loss / degree of OSA temp: 136 BTU/Hr' deg F ANTHC DEHE Division of Environmental Health 8 Engineering Alaska Native Tribal Health Consortium 1901 Bragaw Street, Suite 200 Project Name: Chuathbaluk Heat Recovery Project ANCHORAGE, AK 99503 Project Number: TBD (907) 729-3608 Engineer: WLF Checked: FAX (907) 729-3729 Revision Date: 25Jul-12 e-mail: wiNiam fraser@anthc.org Print: 25Jul-12 File C 0ocumen6 and SettingMw iliam fraser%Applicauon Data%OpenTexnDWTempuDEHE#204774-vlChuathbaluk_HR_Feasibility_Study_Caim XLSX]Shmtl Calculations (Continued) Main Heat Loss: Air Temperature Ground Surface Temperature (Carrier Pipe: Insulation K value Ground K value Pipe R value = Depth of Bury = 'Buried Pipe Design Heat Loss: Heat Loss / Foot Heat Loss / Degree OSA temp -40 Degrees F 28 Degrees 4 Inch foam ins. 4 Pipe OD (Inches) 0.017 BTUH / (ft x Deg F) 012 BTU H / (ft x Deg F) 10.286 Ft x hr x Deg F 8.0 feet 4021 Ft 7,551 BTU/hr 1.88 BTU/hr 189 Loop B Buried Water Main Heat Loser Design Air Temperature -40 Degrees F Design Ground Surface Temperature 28 Degrees F Insulation: 4 Inch foam ins. Carrier Pipe: 4 Pipe OD (Inches) Insulation K value 0,017 BTUH / (ft x Deg F) Ground K value 0.12 BTUH / (ft x Deg F) Pipe R value = 10.286 Ft x hr x Deg F Cepth of Bury = 8.0 feet Buried Pipe 8044 Ft Design Heat Loss: 15,106 BTU/hr Heat Loss/ Foot 1.88 BTU/hr Heat Loss / Degree OSA temp 343 Peak Storage Tank Heat Loss: 10,000 BTU / Hr Heat Loss / degree of OSA temp. 111 BTU / Hr Heat Recovery Heat Loss Heat Recovery loop Temperature Air Temperature: sulation Kvalue value = ingth of Above ground Pipe esl9n Heat Loss: Heat Recovery Heat Loss Heat Recovery loop Temperature Ail -Temperature: sulation Kvalue value = ingth of Above ground Pipe nsien Heat Loss: Loss / Degree OSA 180 Degrees -40 Degrees F 1 Inch foam ins. 4 Pipe OD (Inches) 016 BTU x in / (ft^2 x hr x Deg F) 4.840 Ft-2 x hr x Deg F 50 Ft 2,390 BTU/hr 47.60 BTUH/ft 10.8 50 Degrees F -40 Degrees 2 Inch foam ins. 4 Pipe OD (Inches) 0.16 BTU x in / (ft^2 x hr x Deg F) 8.274 Ft^2 x hr x Deg F 500 Ft 5,695 BTU/hr 11.39 BTUH/ft Existing WTP Heat Loss: Building design heating loss: 15,000 BTU/H Heat loss / degree of OSA temp 142.9 B1VH• Deg F ANTHC DEHE Division of Environmental Health & Engineering Alaska Native Tribal Health Consortium 1901 Bragaw, Street Suite 200 Project Name: Chuathbaluk Heat Recovery Project ANCHORAGE, AK 99503 Project Number: TBD (907) 7293609 Engineer: WLF Checked: FAX (907) 7293729 Revision Date: 26Jul-12 e-mail: william-fraser@anfhc.org Print: 25Jul-12 File C:M—ments and Settings\william haser\Application Data\OpenText\DM\TempuDEHE#204774v1Lhuathbaluk_HR_Feasibility_Study_Calm XI-SX]Sheetl Calculations (Continued) Available Recovered Heat Estimate Estimated Estimated Parasitic Available KWH / Month Htg Degree Htg Degree Htg Degree MBTU/H Cooling Heat for (Estimated Days / Month Days / Month Days / Month rejected from Losses (MBH recovery Month from PCE) Days / Month Av KW (40F) (60F) (180F) Engines / Hr) (MBH/ Hr) January 29760 31 40 1,193 1,813 5,533 55 8 47 February 22968 29 31 1,028 1,608 5,088 43 8 35 March 23760 30 32 966 1,566 5,166 44 7 37 April 23760 30 32 575 1,175 4,775 44 5 39 May 22320 31 30 118 738 4,458 41 3 38 une 14400 30 19 - 410 4,010 27 2 25 my 14880 31 20 - 280 4,000 28 1 26 Aug 14880 31 20 - 355 4,075 28 2 26 Sept 23760 30 32 - 587 4,187 44 3 41 Oct 24552 31 33 465 1,085 4,805 46 5 41 Nov 23760 30 32 828 1,428 5,028 44 6 38 Dec 29760 31 40 1,104 1,724 5,444 55 8 48 WTP Building Heat Loss WTP Building Clrc Loop 1 j Circ Loop 2 Clrc Loop 3 Heat Loss WST Heat Los4 Heat Add I Heat Add Heat Add Sum Heat Month (MBH) (MBH) (MBH) (MBH) (MBH) Demand January 4 8 7 16 44 February $ 4 7 7 14 40 March 7 4 7 6 13 37 April 6; 2 4 4 8 23 May 0 1 1 2 7 une 2• - - 0 2 July 11 - 0 1 Aug 2: - - - 0 2 Sept 3; - - - 0 3 Oct S' 2 3 3 6 19 Nov 7 3 6 5 11 32 Dec a 4 7 7 14 41 Note: Because of the distance between the WTP and Power plant, neat recovery is ilmirea to injecting heat into the circulating waterline and transfering it to one other loop at the 1NTP. ANTHC DEHE Division of Environmental Health BEngineering Alaska Native Tribal Health Consortium 1901 Bragaw Street. Suite 200 Project Name: Chuathbaluk Heat Recovery Project ANCHORAGE, AK 99503 Project Number: TBD (907) 7293609 Engineer: WLF Checked: FAX (907) 7293729 Revision Date: 2Wul-12 e-mad: *71liam.haser@anthc.org Print: 25-Jul-12 File C1Dowments and Settings%volliam fraseMpplication Data%OpenText%DM%Tempt[DEHE-#2D4774-vl-Chuathbaluk_FIR _Feasibility_Study_Cak=.XLSX]Sheetl Calculations (Continued) Available Recovered Heat Estimated Available Heat for Storage Tank arc Loop 1 arc Loop 2 arc Loop 3 Total Heat Recovered recovery Heat Add Heat Add Heat Add Heat Add Demand Heat Benefit Month (MBH) (MBH) (MBH) (MBH) (MBH) (MBH) (MBH) January 47 4 8 7 16 35 35 February 35 4 7 7. 14 33 33 March 37 4 7 6 13 30 30 April 39 2 4 4 8 18 18 May 38 0 L 12 3 3 June I 25 0 D 0. 0 0 0 July 26 0 0 Oi 0 0 0 Aug 26 0 d 0, 0 0 0 Sept 41 0 0 0�. 0 0 0 Oct 41 2 3 3 6 14 14 Nov 38 3 6 5 11 25 25 bec 48 4 7 7 14 33 33 Estimated Fuel Savings Recovered Heat Recovered Total Heating Recovered Avoided Heat Avoided Demand Heat Demand Fuel Use Fuel Cost Month (Gal) (Gal) (Gal) (Dollars) January 327 265 2651 $1,800 February 284 228 228 $1,551 March 269 214 214 $1,458 April 168 128 128 $868 May 52 26 26 $178 June 14 0 0 $0 July 10 0 0 $0 Aug 12� 0 0 $0 Sept 20 0 0 $0 Oct 141 103 103 $702 Nov 233 194 184 $1,249 Dec 305 245 245 $1,666 gtal M4 no 1193 $9,472 Chuathbaluk Heat Recovery Cost Estimate Chuathbaluk Heat Recovery Cost Estimate LABOR MATERIALS Production ` v cc e Rate Days m m � a c FT-tal 60hr. ELEMENT Week) en w O 2 w a m ci J J -i o Item No. Cost Ea Total Cost Freight Materialsfiht + Freight Q Rate 130 106 117 115 127 126 85 106 35 35 35 Labor _ Desn I Civil 0 8 0.0 Fixed estimate Q 100 /hr. ; Site Visit 0 $ 1,100 $ - Mechanical 150 8 15.0 Fixed estimate 100 /hr. $ 12,000 Site Visit 2 S 1,100 $ 2,200 Electrical 100 8 10.0 Fixed estimate 100 /hr. $ 8,000 Site Visit 1 $ 1,100 $ 1,100 I Design, $ 20,000 Total hours 0.0 85.0 1 0.0 0.0 170.0 235-.0 9.0 0.0 20.0 20,9 ! 130.0. Mobilization 'Note I Equi ment Shipping 0.0 $ - Takeoffs 1 I 1 1.0 I 1 1 S 2,630 $ - $ Trainin 1 1 1.0 S $ - $ _ Materials Receivingand Inventory1 1 1.0 1 1 0.2 $ 2.700 $ - $ Set up Materials Storage%Yard 1- 1 1.0 0.5 0.5 0-2 S 1,435 $ - $ Expediting to Const Site 0.0 $ - $ $ I Housing 'Note Local Rental I S Rental 14 $ 200 $ 2.800 $ 2,800.00 Camp set up 1, 1 1.0 1 1 $ 2,530 $ - $ - 1 $ Power Plant Modifications I $ $ - Cooling s s modifications 3 1 3.0 0.2 0.5 1 1 $ 7,371 1 Pipe & Fittings 1 $ 10,000 $ 10.000 . $ 1,000 $ 11,000.00 Controls Make-up/ Expansion Tanks 2 1 2.0 0.0 0.5 2 $ 6,140 S Controls 1 $ 1,000 $ 1,000 $ _ 100 $ - $ 1,100.00 $ - Insulation Upgradys 1 1 1.0 1 2 S 1,960 Insulation 1 1 $ 600 $ 600 $ 300 $ 900.00 $ WTP BLdg Connection S $ - Heating s s modifications 4 1 4.0 1 1 $ 6,440 Pi e & Fittings 1 $ 5.000 $ 51000 1 $ 800 $ 5,800.00 Tank 1 $ 3.500 $ 3.500 $ 800 S 4.300.00 Heat Exchangi 1 $ 1.500 S 1,500 $ 200 $ 1.700.00 Controls 1 1 1.0 1 S 1,270 Controls 1 $ 1,000 $ 1,000 $ 100 $ 1,100.00 $ G col Lines 60 Feet buried arctic pipe 50 251 2.0 1 1 S 3,220 Lett over arctic pipe available on titte 0.0 1 $ 0.0 1 S I BTU Meter install S S Connection and In" 1 i 1.0 1 1 0.1 1 $ 2,965 BTU Meter 1 $ 2,500 S 2.500 S 150 $ 2,650.00 Programming and interface 1 1 1.0 1 _ $ 1,060 Flow meter 1 $ 2.500 $ 2,500 $ 150 $ 2,650.00 $ Support Activities S $ - col 2 1 2.0 1 0.2 S 2,860 Glycol 33 $ 1.100 $ 36,300 $ 36.300.00 [ I S and References Job Clean Up/ Final Inspection Winal Inspection ©M�� M��Mmmn� ���■� :Pack Up and Grate - Local accomodations are available. -All exterior piping run on sleepers above - -Crew leader functions will be accomplished