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HomeMy WebLinkAboutAPPLICATION - AVEC REF 15 New Stuyahok SolarRenewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 1 of 40 10/04/2022 SECTION 1 – APPLICANT INFORMATION Please specify the legal grantee that will own, operate, and maintain the project upon completion. Name (Name of utility, IPP, local government, or other government entity) Alaska Village Electric Cooperative, Inc. Tax ID # 92-0035763 Not-for-Profit Date of last financial statement audit: December 2021 Mailing Address: Physical Address: 4831 Eagle Street 4831 Eagle Street Anchorage, AK 99503 Anchorage, AK 99503 Telephone: Fax: Email: (907) 561 – 1818 (800) 478 – 1818 fbutton@avec.org 1.1 Applicant Point of Contact / Grants Coordinator Name: Title: Forest Button Manager, Project Development & Key Accounts Mailing Address: 4831 Eagle Street Anchorage, AK 99503 Telephone: Fax: Email: (907) 646 - 5961 (800) 561 - 2388 fbutton@avec.org 1.1.1 Applicant Signatory Authority Contact Information Name: Title: William R. Stamm President and CEO Mailing Address: 4831 Eagle Street Anchorage, AK 99503 Telephone: Fax: Email: (907) 565 - 5351 (800) 562 - 4086 bstamm@avec.org 1.1.2 Applicant Alternate Points of Contact Name Telephone: Fax: Email: Onya Stein (907) 561 – 1818 (800) 478 -1818 ostein@avec.org Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 2 of 40 10/04/2022 1.2 Applicant Minimum Requirements Please check as appropriate. If applicants do not meet the minimum requirements, the application will be rejected. 1.2.1 Applicant Type ☒ An electric utility holding a certificate of public convenience and necessity under AS 42.05 CPCN #169, or ☐ An independent power producer in accordance with 3 AAC 107.695 (a) (1) CPCN #______, or ☐ A local government, or ☐ A governmental entity (which includes tribal councils and housing authorities) Additional minimum requirements ☒ 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 by checking the box) ☒ 1.2.3 As an applicant, we have administrative and financial management systems and follow procurement standards that comply with the standards set forth in the grant agreement (Section 3 of the RFA). (Indicate yes by checking the box) ☒ 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 https://www.akenergyauthority.org/What-We-Do/Grants-Loans/Renewable-Energy- Fund/2022-REF-Application (Any exceptions should be clearly noted and submitted with the application.) (Indicate yes by checking the box) ☒ 1.2.5 We intend to own and operate any project that may be constructed with grant funds for the benefit of the general public. If no please describe the nature of the project and who will be the primary beneficiaries. (Indicate yes by checking the box) Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 3 of 40 10/04/2022 SECTION 2 – PROJECT SUMMARY 2.1 Project Title Provide a 4 to 7 word title for your project. Type in the space below. New Stuyahok Solar Energy and Battery Storage Project 2.2 Project Location 2.2.1 Location of Project – Latitude and longitude (preferred), street address, or community name. Latitude and longitude coordinates may be obtained from Google Maps by finding you project’s location on the map and then right clicking with the mouse and selecting “What is here? The coordinates will be displayed in the 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’s Grants Coordinator by email at grants@akenergyauthority.org or by phone at (907) 771- 3081. Latitude 59.2503 North Longitude -157.313 West New Stuyahok (zip code 99636) is located on the Nushagak River, about 52 miles northeast of Dillingham and approximately 280 air miles from Anchorage. 2.2.2 Community benefiting – Name(s) of the community or communities that will be the beneficiaries of the project. The project will benefit the communities of New Stuyahok (population of 512 people) and Ekwok (population of 111 residents). Ekwok is connected to New Stuyahok’s electric grid by an eight-mile distribution intertie. 2.3 Project Type Please check as appropriate. 2.3.1 Renewable Resource Type ☐ Wind ☐ Biomass or Biofuels (excluding heat-only) ☐ Hydro, Including Run of River ☐ Hydrokinetic ☐ Geothermal, Excluding Heat Pumps ☐ Transmission of Renewable Energy ☒ Solar Photovoltaic ☒ Storage of Renewable ☐ Other (Describe) ☐ Small Natural Gas 2.3.2 Proposed Grant Funded Phase(s) for this Request (Check all that apply) Pre-Construction Construction ☐ Reconnaissance ☒ Final Design and Permitting ☐ Feasibility and Conceptual Design ☒ Construction Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 4 of 40 10/04/2022 2.4 Project Description Provide a brief, one-paragraph description of the proposed project. Alaska Village Electric Cooperative, Inc. (AVEC) is requesting $2,520,000 through an Alaska Energy Authority (AEA) Renewable Energy Fund (REF) grant to complete final design and construction of a local solar energy and battery storage in New Stuyahok, Alaska that would also serve Ekwok, Alaska. The proposed project involves completing final solar design and construction of a 300-kW solar array with a 500-kW power conversion system and a 500 kWh battery storage to supplement the existing power generation system which serves New Stuyahok and Ekwok. Like many communities in Alaska, New Stuyahok and Ekwok experiences high and unstable energy costs. The communities depend on diesel fuel to power the three local generators and two back up generators responsible for all available energy in the communities. To provide renewable energy to the communities, a distributed solar-battery hybrid system would be constructed in New Stuyahok next to the existing power plant. The existing diesel system would operate at a lower capacity to supplement solar energy in the winter and when the solar resource is low. It is anticipated that solar generation would be the primary energy source during periods of prolonged sun exposure by installing a power converter and energy storage system. Solar energy has proven a viable energy resource in the similar communities in western Alaska. As solar becomes a proven feasible energy source for communities in Alaska, AVEC hopes to secure funding from AEA to reduce energy costs for New Stuyahok and Ekwok through the installation of solar power and battery storage. 2.5 Scope of Work Provide a short narrative for the scope of work detailing the tasks to be performed under this funding request. This should include work paid for by grant funds and matching funds or performed as in-kind match. The AEA REF grant funds will be used to complete a solar array with battery storage project in New Stuyahok, and if funded by AEA, this effort will be supplemented by AVEC contributions. The scope of work under this funding request includes final design and construction for a 300-kW solar array with a 500-kW power conversion system and a 500-kWh battery storage to supplement the existing power generation system which serves New Stuyahok and Ekwok. Specific tasks include the following: - Issue RFP for design-build solar contractor/vendor. - Complete geotechnical evaluation. - Finalize system design, including exact size of PV array and total budget. - Procure and ship materials and equipment to New Stuyahok. - Hire local labor for installation. - Install, commission, and integrate PV array and battery storage with existing system. - Train local utility staff for ongoing O&M, troubleshooting, system optimization with design-build contractor/vendor and AVEC staff. To complete this work, AVEC requests $2,520,000 in AEA REF grant funds and will provide $280,000 cash match to support the project. AVEC anticipates solar infrastructure in New Stuyahok to be online as soon as 2025. 2.6 Previous REF Applications for the Project See Section 1.15 of the RFA for the maximum per project cumulative grant award amount Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 5 of 40 10/04/2022 Round Submitted Title of application Application #, if known Did you receive a grant? Y/N Amount of REF grant awarded ($) N/A Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 6 of 40 10/04/2022 SECTION 3 – Project Management, Development, and Operation 3.1 Schedule and Milestones Please fill out the schedule below (or attach a similar sheet) for the work covered by this funding request. Be sure to identify key tasks and decision points, including go/no go decisions, 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 (I. Reconnaissance, II. Feasibility and Conceptual Design, III. Final Design and Permitting, and IV. Construction) of your proposed project. See the RFA, Sections 2.3-2.6 for the recommended milestones for each phase. Add additional rows as needed. Task # Milestones Tasks Start Date End Date Deliverables 1 Project scoping and contractor solicitation AVEC will select a solar contractor/vendor for the solar design and construction immediately following AEA’s authorization to proceed. Aug 1, 2023 Aug 15, 2023 Contractor Agreements Final Design 3.1 Geotech Analysis AVEC will work with the selected contractor/vendor to perform a geotechnical analysis of the project site. Sep 1, 2023 Sep 15, 2023 Final Geotech report 3.2 Final Design AVEC will work with the solar contractor/vendor to develop final design that is compatible with AVEC’s existing generation system. Sep 1, 2023 Dec 30, 2023 Final system design Construction 4.1 Project Management AVEC and the selected contractor/vendor will develop a detailed construction timeline. AVEC will manage the tasks and coordinate next steps with the contractor/vendor. Dec 15, 2023 Dec 31, 2024 Detailed construction timeline Ongoing project management 4.2 Procurement and Delivery of Materials and Equipment Once final design is complete, AVEC will order and schedule the delivery of all equipment needed. AVEC will develop a delivery plan for all materials and will place the order as soon as possible to prevent any delays from material shortages. AVEC will plan to barge the materials to New Stuyahok once the ice has melted in Spring 2024. Jan 1, 2024 June 1, 2024 Materials list Delivery plan Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 7 of 40 10/04/2022 4.3 Construction AVEC, the selected contractor/vendor, and local labor will install the solar PV array, power conversion system, and battery. June 1, 2024 Sep 1, 2024 PV array and battery installation (photos of progress) Monthly contractor reports 4.4 Final acceptance, commissioning, and start up After testing, AVEC and the solar contractor/vendor will complete final acceptance of the new system, commissioning, and start up Oct 1, 2024 Dec 1, 2024 Completed commissioni ng punch list Final performance report 4.5 Post- Construction certification and report Final construction and commissioning reports will be used to finalize grant close out and ensure that the new system is in operating order. Nov 1, 2024 Dec 31, 2024 Grant close out forms Final performance report Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 8 of 40 10/04/2022 3.2 Budget 3.2.1 Funding Sources Indicate the funding sources for the phase(s) of the project applied for in this funding request. Grant funds requested in this application $2,520,000 Cash match to be provideda $280,000 In-kind match to be provideda $0 Energy efficiency match providedb $0 Total costs for project phase(s) covered in application (sum of above) $2,800,000 Describe your financial commitment to the project and the source(s) of match. Indicate whether these matching funds are secured or pending future approvals. Describe the impact, if any, that the timing of additional funds would have on the ability to proceed with the grant. AVEC commits a 10% cash contribution of the total cost of the New Stuyahok Solar Power and Battery Project should it receive AEA funding, totaling $280,000. a Attach documentation for proof (see Section 1.18 of the Request for Applications) b See Section 8.2 of this application and Section 1.18 of the RFA for requirements for Energy Efficiency Match. 3.2.2 Cost Overruns Describe the plan to cover potential cost increases or shortfalls in funding. AVEC does not anticipate any cost increases or shortfalls in funding, basing the project budget off recent solar installations for comparable communities in Alaska. Should the project experience a funding issue, AVEC will seek additional funding sources or allocate a larger cash contribution to the effort. With additional opportunities for renewable energy funding from the recent Infrastructure Investment and Jobs Act and the Inflation Reduction Act, AVEC anticipates that there will be increased funding opportunities from federal organizations like the DOE, USDA, and BIA that would be able to cover any cost overruns. 3.2.3 Total Project Costs Indicate the anticipated total cost by phase of the project (including all funding sources). Use actual costs for completed phases. Indicate if the costs were actual or estimated. Reconnaissance Estimated $0 Feasibility and Conceptual Design Estimated $0 Final Design and Permitting Estimated $112,000 Construction Estimated $2,688,000 Total Project Costs (sum of above) Estimated $2,800,000 Metering/Tracking Equipment [not included in project cost] Estimated $400 3.2.4 Funding Subsequent Phases If subsequent phases are required beyond the phases being applied for in this application, describe the anticipated sources of funding and the likelihood of receipt of those funds.  State and/or federal grants  Loans, bonds, or other financing options  Additional incentives (i.e. tax credits) Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 9 of 40 10/04/2022  Additional revenue streams (i.e. green tag sales or other renewable energy subsidies or programs that might be available) No subsequent phases are required beyond this project. Unlike wind, hydro, or other alternative energy sources, the process for solar construction is more streamline and does not require an extensive local feasibility effort. Feasibility of solar was proven by a statewide feasibility study conducted by National Renewable Energy Laboratory (NREL) in 2016 and through similar solar PV array and battery storage projects completed by AVEC. AVEC would select a solar contractor/vendor who would use existing data and modeling from the NREL model and nearby communities to determine the final design for the solar array and battery for New Stuyahok. AVEC would work with the contractor/vendor to complete final designs that integrate with AVEC’s existing generation system. Together, AVEC and the solar contractor/vendor would begin construction. The estimated timeline from procurement to final construction is one year. Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 10 of 40 10/04/2022 3.2.3 Budget Forms Applications MUST include a separate worksheet for each project phase that was identified in Section 2.3.2 of this application — I. Reconnaissance, II. Feasibility and Conceptual Design, III. Final Design and Permitting, and IV. Construction. Please use the tables provided below to detail your proposed project’s total budget. Be sure to use one table for each phase of your project, and delete any unnecessary tables. The milestones and tasks should match those listed in 3.1 above. If you have any question regarding how to prepare these tables or if you need assistance preparing the application please feel free to contact AEA’s Grants Coordinator by email at grants@akenergyauthority.org or by phone at (907) 771-3081. Phase 3 — Final Design and Permitting Milestone or Task Anticipated Completion Date RE- Fund Grant Funds Grantee Matching Funds Source of Matching Funds: Cash/In- kind/Federal Grants/Other State Grants/Other TOTALS (List milestones based on phase and type of project. See Sections 2.3 thru 2.6 of the RFA ) 1. Project Scoping and Contractor/vendor Solicitation Aug 15, 2023 $ - $ - N/A $ - 3.1 Geotech Sept 15, 2023 $ 1,800 $ 200 Cash $ 2,000 3.2 Final Design Dec 30, 2023 $ 99,000 $ 11,000 Cash $ 110,000 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ TOTALS $ 100,800 $ 11,200 $ 112,000 Budget Categories: Direct Labor & Benefits $ 99,000 $ 11,000 Cash $ 110,000 Travel & Per Diem $ - $ - - $ - Equipment $ - $ - - $ - Materials & Supplies $ - $ - - $ - Contractual Services $ 1,800 $ 200 Cash $ 2,000 Construction Services $ - $ - - $ - Other $ - $ - - $ - TOTALS $ 100,800 $ 1,200 $ 12,000 Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 11 of 40 10/04/2022 Phase 4 — Construction Milestone or Task Anticipated Completion Date RE- Fund Grant Funds Grantee Matching Funds Source of Matching Funds: Cash/In- kind/Federal Grants/Other State Grants/Other TOTALS (List milestones based on phase and type of project. See Sections 2.3 thru 2.6 of the RFA ) $ $ $ 4.1 Project Management Dec 31, 2024 $ 4,500 $ 500 Cash $ 5,000 4.2 Equipment Procurement and Delivery Jun 1, 2024 $ 925,200 $ 102,800 Cash $ 1,028,000 4.3 Construction Sept 1, 2024 $ 1,468,800 $ 163,200 Cash $ 1,632,000 4.4 Final Acceptance, Commissioning and Start-up Dec 1, 2024 $ 18,000 $ 2,000 Cash $ 20,000 4.5 Post Construction Certification and Report Dec 31, 2024 $ 2,700 $ 300 Cash $ 3,000 $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ TOTALS $ 2,419,200 $ 268,800 $ 2,688,000 Budget Categories: Direct Labor & Benefits $ 29,700 $ 3,300 $ 33,000 Travel & Per Diem $ 4,500 $ 500 $ 5,000 Equipment $ - $ - $ - Materials & Supplies $ 916,200 $ 101,800 $ 1,018,000 Contractual Services $ - $ - $ - Construction Services $ 1,468,800 $ 163,200 $ 1,632,000 Other $ - $ - $ - TOTALS $ 2,419,200 $ 268,800 $ 2,688,000 Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 12 of 40 10/04/2022 3.2.4 Cost Justification Indicate the source(s) of the cost estimates used for the project budget, including costs for future phases not included in this application. AVEC based the proposed project budget for this grant application on past experience successfully completing solar projects, including a 2022 solar array in Shungnak and Noatak where AVEC supported the Northwest Arctic Borough with solar integration, and projects completed by others in similar locations in the state. A detailed construction budget is attached in Tab G. 3.3 Project Communications 3.3.1 Project Progress Reporting Describe how you plan to monitor the progress of the project and keep AEA informed of the status. Who will be responsible for tracking the progress? What tools and methods will be used to track progress? AVEC has systems in place to accomplish reporting requirements successfully. AVEC has received millions of dollars in funding and successfully administered grants from AEA, Denali Commission, US Department of Agriculture, and US Department of Energy, completing more than 100 major projects in its service area over the last 20 years. See Tab G for a list of complete and in-progress AEA projects. The project will be managed out of AVEC’s Projects Development Department. For financial reporting, the Projects Development Department’s accountant, supported by the Administrative Services Department, will prepare financial reports. The accountant will be responsible for ensuring that vendor invoices and internal labor charges are documented in accordance with AEA guidelines and are included with financial reports. AVEC has sophisticated systems in place for accounting, payables, financial reporting, and capitalization of assets in accordance with the State of Alaska’s guidelines. AVEC will require that monthly written progress reports be provided with each invoice submitted from primary contractor(s). The progress reports will include a summary of tasks completed, issues or problems experienced, upcoming tasks, and contractor’s needs from AVEC. Project progress reports will be collected, combined, and supplemented as necessary and forwarded as one package to the AEA project manager each quarter. Because AVEC is responsible to its member communities and a board of directors, staying on schedule and within budget is essential. This project will result in an analysis and recommendations for clean, renewable energy from a solar array with battery storage. New Stuyahok and Ekwok residents are very interested in this project because their energy costs can be a large portion of their budgets. AVEC member communities expect status updates on village projects, including when and what work will occur, who will be involved, and when it will be completed. Community members are also able to contact AVEC’s President and CEO and Board of Directors directly if they have an inquiry or concern about a project. An independent auditor’s report on compliance for each major federal program and report on internal control over compliance required by Title 2 CFR 200 (Uniform Guidance) for AVEC in 2021 did not identify any deficiencies in internal control the auditor considered to be a material weakness. In addition, the independent auditor’s report on compliance with aspects of contractual agreements and regulatory requirements for AVEC in 2021 stated that nothing indicated AVEC Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 13 of 40 10/04/2022 failed to comply with the terms, covenants, provisions, or conditions of loans, grants, and security instruments as specified in 7 CFR part 1773. A copy of AVEC’s audit is available upon request. Quarterly meetings will occur between AVEC and AEA to discuss the status of all projects funded through the AEA Renewable Energy Grants program. Individual project meetings will be held, as required or requested by AEA. Forest Button will be responsible for tracking progress of project communications, and Onya Stein, may be contacted as an alternative manager. 3.3.2 Financial Reporting Describe the controls that will be utilized to ensure that only costs that are reasonable, ordinary and necessary will be allocated to this project. Also discuss the controls in place that will ensure that no expenses for overhead, or any other unallowable costs will be requested for reimbursement from the REF Grant Program. AVEC’s accounting system consists of software, procedures, and controls driven by the daily inputs and other actions of competent employees throughout the organization. The software is comprised of a comprehensive suite of Daffron-brand modules including accounting (payables/payroll/general ledger), work orders, purchase orders, customer service and billing, and warehouse/inventory. Some ancillary functions are accomplished on spreadsheets with data downloaded from the various Daffron modules. Procedures and controls include but are not limited to adequate separation of duties, manager- level approval of all expenditures, CEO-level approval of all major expenditures, a formal purchasing system (including purchase orders) for acquisition of materials and components, and a formal contracting system for acquisition of contractual services (consultants, construction contractors, etc.). Accounts payable are processed and recorded by the AVEC Accounting Department, all expenditures are coded to budget categories and assigned to appropriate work orders. The Projects Development and Key Accounts Department, particularly its Project Manager, and Senior Accountant are primarily responsible for all grant reporting. AVEC’s team, with years of experience and knowledge of managing AEA-funded project costs and grant reimbursements, has a system in place for ensuring that only costs that are reasonable, ordinary, and necessary are charged to a project, and that only costs that are eligible are submitted for reimbursement. First, AVEC’s Project Manager (PM) is responsible for determining whether costs are appropriate and acceptable. The PM reviews all invoices from contractors and vendors and all in-house labor and equipment charges. Second, the Projects Development and Key Accounts Department Manager (DM) reviews costs associated with outsourced services, including consultant and contractor invoices, to ensure that the charges are reasonable. The DM also reviews his department’s staff labor charges (timesheets) to the project. Third, the Operations and Engineering Department Managers review all in-house labor (timesheets) and expense reports for their respective departments to make sure that the charges are acceptable. Finally, the Projects Development and Key Accounts Department Senior Accountant, while preparing AEA financial reports and reimbursement requests, provides a review of both outsourced and in-house charges to determine whether they are allowable costs. AVEC has systems in place to keep unacceptable overhead costs from being charged to and reimbursed through the REF Grant Fund Program. Upon project initiation, an AVEC work order number is created to track all project labor and expenses. AVEC staff and contractors reference Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 14 of 40 10/04/2022 this number on all timesheets and invoices when working on the project, ensuring that project costs are known. Purchase orders are universally used to establish spending limits for purchases of materials, which are then monitored by the Accounting Department through the enterprise accounting system. Task orders and contracts are universally used to establish spending limits for purchases of contractual services, which are then monitored by the Projects Development and Key Accounts Department utilizing spreadsheets. Direct labor expenses (gross payroll) are tracked separately from overhead costs including employee benefits and payroll taxes. Once labor hours have been calculated, overhead including employee benefits and payroll taxes are applied in a separate transaction on the work order. AVEC and AEA have an agreed rate cap for employer costs of payroll, consisting only of employee benefits and payroll taxes. AVEC can ensure that only allowable costs would be requested for reimbursement because the direct labor and indirect/overhead costs are separate transactions (and thus the indirect/overhead amounts can be easily omitted from reimbursement), and because the allowable rate has been established and agreed upon (and thus can be easily included for reimbursement). Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 15 of 40 10/04/2022 SECTION 4 – QUALIFICATIONS AND EXPERIENCE 4.1 Project Team Include resumes for known key personnel and contractors, including all functions below, as an attachment to your application. In the electronic submittal, please submit resumes as separate PDFs if the applicant would like those excluded from the web posting of this application. 4.1.1 Project Manager Indicate who will be managing the project for the Grantee and include contact information. 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. Forest Button is the Project Manager and has served as manager of the Projects Development Department for AVEC since 2016 where he leads a team focused on stabilizing the cost of energy in rural Alaskan villages through improved power plant efficiency, renewable power generation, wind to heat, recovered heat, and interties between villages. Previously, Mr. Button worked as a project manager under contract to AVEC. He was responsible for the management of the design and construction of capital projects and has 30 years of experience managing construction projects throughout Alaska. Mr. Button has a degree in Mining Engineering from the University of Alaska, Fairbanks. 4.1.2 Project Accountant Indicate who will be performing the accounting of this project for the grantee. If the applicant does not have a project accountant indicate how you intend to solicit financial accounting support. Rebecca Lopez is the Chief Financial Officer at AVEC, which includes the Accounting Department, Purchasing, IT, and Human Resources. Ms. Lopez has more than 9 years of experience in the Alaska electric utility industry. She joined AVEC in 2021. She is responsible for all administrative and financial records including preparing grant reports, Regulatory Commission of Alaska rate filings, financial forecasts, budgets and Power Cost Equalization (PCE), as well as overseeing the day-to-day office operations. 4.1.3 Expertise and Resources Describe the project team including the applicant, partners, and contractors. For each member of the project team, indicate:  the milestones/tasks in 3.1 they will be responsible for;  the knowledge, skills, and experience that will be used to successfully deliver the tasks;  how time and other resource conflicts will be managed to successfully complete the task. If contractors have not been selected to complete the work, provide reviewers with sufficient detail to understand the applicant’s capacity to successfully select contractors and manage complex contracts. AVEC would use a project management approach that has been used to successfully design and construct renewable energy projects throughout rural Alaska: a team of AVEC staff and an external contractor/vendor. AVEC staff and their role on this project includes: • William R. Stamm, President and Chief Executive Officer, would act as Project Executive and will maintain ultimate program and financial authority. Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 16 of 40 10/04/2022 • Forest Button, Manager, Community Development and Key Accounts, would lead the project management team consisting of AVEC staff, and solar contractor/vendor. Together with the Assistant Project Manager, Forest would provide coordination final design and construction. The group’s resources include a project coordinator, accountant, project/construction manager (PM/CM), and a community liaison. Mr. Button will be responsible for managing all the project milestones listed in Section 1 (project management). He will also be responsible for reporting directly to AEA on the status of the project. • Onya Stein, Assistant Project Manager, will assist on all milestones of the project. In particular, she will be responsible for managing the contractor. Onya would ensure that all milestones and tasks are completed. Specifically, she would be responsible for selecting, coordinating, and managing the solar resource specialist and ensuring that their deliverables are on time and within budget (milestones 1, 3.2, 4.1, 4.2, and 4.5). • Daniel Allis, Manager of Operations, would provide oversight and input in planning for construction, distribution, and solar energy generation components of the project. Specifically, he would provide input on the final design (milestone 3.2), construction of the solar PV array (milestone 4.3), acceptance and startup of the array (milestone 4.4), and post construction certification (milestone 4.5). • Darren Westby, Manager of Engineering, would provide technical assistance and information on the existing power system and possible issues and project needs. Specifically, Darren would provide input on the final design (milestone 3.2) and the final report (milestone 4.5). • Rebecca Lopez, Chief Financial Officer, would assist with grant management, she would provide support in accounting, payables, financial reporting, and capitalization of assets in accordance with AEA guidelines. • Christian Diamond, Grant Accountant and Project Manager, would support the CFO with grant management (milestone 4.1), assisting with accounting and financial reporting. • Anna Sattler, Community Liaison, would communicate directly with New Stuyahok residents to ensure that the community is informed. Specifically, Anna would assist by working with the community on final site control (milestone 3.1) and relaying information from the final report (milestone 4.5). The contractor/vendor for this project would include: • Solar Resource Contractor/Vendor. AVEC would seek a contractor/vendor best suited for assisting with this effort based on experience in Alaska. This contractor/vendor would: - Draft the final solar design (milestone 3.2) - Assist in construction of solar PV array and battery storage (milestone 4.3) - Work with AVEC in final acceptance, commissioning, and start up (milestone 4.4) - Finalize the post construction certification and report with AVEC (milestone 4.5) Selection Process for the Contractor: The solar contractor/vendor selection would be based upon technical competencies, past performance, written proposal quality, cost, and general consensus from an internal AVEC technical steering committee. The selection of the consultant would occur in strict conformity with AVEC’s procurement policies, and conformance with OMB circulars. Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 17 of 40 10/04/2022 Resumes for key staff can be found attached in Tab A. 4.2 Local Workforce Describe how the project will use local labor or train a local labor workforce. AVEC uses local labor whenever possible in both daily operations and special projects; recognizing that local labor is good for its customers’ families. Local wages circulate, often multiple times, within the community thereby benefitting the community as a whole. AVEC project managers also know there are tasks that are more competently done by local folks; for example, equipment operators, bear guards, bird monitors, and four-wheeler drivers. AVEC requires a 20% minimum local hire on all construction projects. For this effort, it is expected that local labor will assist with the construction and installation of the solar panels and battery storage. Local labor saves money within special project budgets as demonstrated in comparing budgets with local labor wages against imported labor wages, travel, and per diem. This is true for not only AVEC’s own projects but also for its contractors. Therefore, AVEC includes local hire language in the construction bid documents and contract. AVEC has included the following language in bid documents in the past: “Local Labor and Local Firms Participation Goal: The participation goal for this project has been established as a percentage of the total dollar amount awarded to the successful bidder in the amount of 20% to local labor and local firms. The successful bidder shall provide the Owner documentation to demonstrate compliance with this goal. If this goal cannot be reached and good faith efforts were demonstrated through documentation to the Owner, the Owner has the right to issue a variance to this section.” “Use of Local Labor and Local Firms: To the maximum extent practicable, Contractor shall accomplish the Project using local labor and Alaska firms.” In most AVEC communities, New Stuyahok being one of them, the power plant operators are employees of their city government. Through a contract process, AVEC reimburses the city for the wages and fringe benefits of the power plant operators. During project feasibility, design, and construction phases, plant operators provide necessary assistance; typically, with tasks like bird monitoring, taking photographs, changing sim cards, hosting and assisting engineers and others coming into the community for project work. AVEC is very proud of its training program wherein power plant operators are trained by an itinerant training supervisor who travels continuously to AVEC communities and works one-on-one with the operators as needed and throughout the year. Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 18 of 40 10/04/2022 SECTION 5 – TECHNICAL FEASIBILITY 5.1 Resource Availability 5.1.1 Assessment of Proposed Energy Resource Describe the potential extent/amount of the energy resource that is available, including average resource availability on an annual basis. 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 (See Section 11). Likelihood of the resource being available over the life of the project. See the “Resource Assessment” section of the appropriate Best Practice Checklist for additional guidance. AVEC completed a review of solar potential in New Stuyahok. According to the NREL PVWatts Calculator tool, a 300-kW solar array system in New Stuyahok has the potential to produce 276,413 kilowatt hours (kWh) annually (CF=10.5%) (Tab G). The highest energy production would be in May (42,160 kWh) and June (38,224 kWh). Additionally, based on existing knowledge and solar feasibility studies conducted for comparable communities in similar Alaska locations, it is assumed New Stuyahok has conditions appropriate for a viable solar PV system. A 2016 U.S. Department of Energy office of Indian Energy report found that solar was a feasible system in nearby Kasigluk. The full study is attached in Tab G. As the costs for solar installation have drastically decreased since the time of the study, AVEC assumes that solar will be an even more viable option for New Stuyahok. The 2016 study provided a statewide analysis of solar that is often referenced when determining the feasibility of solar across the state. As noted in Figure 1 taken from the 2016 NREL study, New Stuyahok is located in a relatively high kWh/m2/Day region of the state. Figure 1. NREL Estimated Solar Resource Output for the State of Alaska New Stuyahok Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 19 of 40 10/04/2022 5.1.2 Alternatives to Proposed Energy Resource Describe the pros and cons of your proposed energy resource vs. other alternatives that may be available for the market to be served by your project. Solar energy has proven a viable energy resource in multiple communities with similar environmental and climate conditions. Diesel fuel is the primary source of energy, which is expensive. Other alternative energy resources (wind, hydroelectric and geothermal) are not anticipated to be as cost effective or viable as solar energy with battery storage in New Stuyahok. The wind resource is low; a wind resource report completed by V3 Energy for New Stuyahok in 2003 and again in 2015 found the wind resource to be “Class 2 - Marginal” and not cost effective for New Stuyahok. There are no geothermal opportunities nearby, and hydroelectric power opportunities do not exist because of the landscape and unsuitable waterbodies. Further, hydroelectric power is not a popular alternative in the Bristol Bay region because of the perceived impact on salmon runs. 5.1.3 Permits Provide the following information as it may relate to permitting and how you intend to address outstanding permit issues. See the “Environmental and Permitting Risks” section of the appropriate Best Practice Checklist for additional guidance.  List of applicable permits  Anticipated permitting timeline  Identify and describe potential barriers including potential permit timing issues, public opposition that may result in difficulty obtaining permits, and other permitting barriers No permits would be needed for the installation of the solar panels. When examining the feasibility of this project, AVEC researched potential permitting requirements. Based on a wetland delineation completed for the power plant and adjacent area (attached in Tab G), there are no wetlands in the project area. Further, there are no other environmental resources (fish streams, historic resources, airspace, etc.) that could be impacted by the project (report attached in Tab G). 5.2 Project Site Describe the availability of the site and its suitability for the proposed energy system. 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. See the “Site control” section of the appropriate Best Practice Checklist for additional guidance. AVEC would place the 300-kW PV on land adjacent to the AVEC power plant (Figure 2). The proximity to the facility would allow for easy energy incorporation into the existing system and operations and maintenance. This land is owned by the Stuyahok Limited, the local Alaska Native Claims Settlement Act Native Corporation, the board of directors have approved signature of site control for the project and the Quit Claim Deed will be signed and recorded in January 2023. Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 20 of 40 10/04/2022 Figure 2. New Stuyahok power plant and PV array location. 5.3 Project Technical & Environmental Risk 5.3.1 Technical Risk Describe potential technical risks and how you would address them.  Which tasks are expected to be most challenging?  How will the project team reduce the risk of these tasks?  What internal controls will be put in place to limit and deal with technical risks? See the “Common Planning Risks” section of the appropriate Best Practice Checklist for additional guidance. This is a simple project. The typical risks, such as permitting and site control, have already been addressed. A recent study completed by the U.S. Department of Energy (DOE) Solar Energy Technologies Office found that supply chain issues may limit availability of solar panels and other supplies, which could impact this timeline for this project. While this is out of AVEC’s control, to minimize these risks to the schedule, AVEC plans to place the order for the panels in January 2024. 5.3.2 Environmental Risk Explain whether the following environmental and land use issues apply, and if so, which project team members will be involved and how the issues will be addressed. See the “Environmental and Permitting Risks” section of the appropriate Best Practice Checklist for additional guidance.  Threatened or endangered species  Habitat issues  Wetlands and other protected areas Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 21 of 40 10/04/2022  Archaeological and historical resources  Land development constraints  Telecommunications interference  Aviation considerations  Visual, aesthetics impacts  Identify and describe other potential barriers AVEC has already completed all the work to mitigate environmental risks for this project: Threatened or endangered species: Based on consultation with U.S. Fish and Wildlife Service, there are no listed species in the project area (Tab G). Habitat issues: Because the array would be installed next to the power plant, habitat issues are not expected. Wetlands and other protected areas: The U.S. Army Corps of Engineers confirmed that there are no wetlands in the project area in a Preliminary Jurisdictional Determination (Tab G). Archaeological and historical resources: Based on a review of the Alaska Heritage Resource Survey, there are no cultural or historic sites near the solar panel site (Tab G). The State Historic Preservation Officer concurred with a finding of no effect to historic resources for the construction of the power plant, which is adjacent to the project. Land Development Constraints: A Quit Claim deed will be signed and recorded by New Stuyahok Ltd. in January 2023. Telecommunications Interference: Solar panels do not emit any kind of radiofrequency waves, so they do not affect telecommunications. Aviation Considerations: Based on the Federal Aviation Administration’s Notice Criteria Tool, the New Stuyahok solar panels meets airspace navigation requirements and would not require filing for Obstruction Evaluation /Airport Airspace Analysis. Visual Impacts: The solar panels would be located next to the power plant and would not be easily seen. AVEC received letters of support from all public entities in New Stuyahok. 5.4 Technical Feasibility of Proposed Energy System In this section you will describe and give details of the existing and proposed systems. The information for existing system will be used as the baseline the proposal is compared to and also used to make sure that proposed system can be integrated. Only complete sections applicable to your proposal. If your proposal only generates electricity, you can remove the sections for thermal (heat) generation. 5.4.1 Basic Operation of Existing Energy System Describe the basic operation of the existing energy system including: description of control system; spinning reserve needs and variability in generation (any high loads brought on quickly); and current voltage, frequency, and outage issues across system. See the “Understanding the Existing System” section of the appropriate Best Practice Checklist for additional guidance. The existing power generation system in New Stuyahok consists of three diesel generators, generating 277/480V three phase. In the first position is a 499 kilowatt (kW) rated Cummins Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 22 of 40 10/04/2022 QSX15 G9 that was installed in 2003. In the second position is a 363 kW rated Detroit Diesel S60K4 1800 RPM engine installed in 2010. A 505 kW rated Caterpillar 3456 engine is in the third position and was brought online in 2020. All units are able to load share and parallel. The most efficient available engine is dispatched to meet the load through manual control of the plant operator. Individual generator efficiency is not tracked, but the aggregate diesel generator efficiency in 2021 was 13.62 kilowatt hours per gallon (kWh/gallon). AVEC is in the process of replacing the engine controls and distribution feeders with automated switchgear with funding that is not part of this application. The automated switchgear has been constructed and is scheduled for installation in 2023 to ready the plant for integration of renewable generation. Generation from New Stuyahok is connected to Ekwok by an eight-mile intertie. There are two backup generators in Ekwok. Those generators ran for only five hours in 2021. In the second position (behind the intertie), is a PER PKXL05-9YH1 and in the third position is a JD 6081HF070; both were installed in 2011 and used to provide electric power to the community before the intertie was constructed. 5.4.2.1 Existing Power Generation Units Include for each unit include: resource/fuel, make/model, design capacity (kW), minimum operational load (kW), RPM, electronic/mechanical fuel injection, make/model of genset controllers, hours on genset Unit 1: Diesel generator, Cummins QS15 G9, 499 kW, 50kW min, Electronic Fuel Injection, NEW Generator model HC I534F1, 48,582 hours, installed 2003. Unit 2: Diesel generator, Detroit Diesel Series 60 K4 1800 RPM, 363 kW, 50kW min, Electronic Fuel Injection, NEW Generator model HC I504C1, 55,920 hours, installed 2010. Unit 3: Diesel generator, Caterpillar 3456, 505 kW, 50kW min, Mechanical Fuel Injection, Caterpillar generator model LC6 KT Generator model 4P3-1475, 6,944 hours, installed 2020. 5.4.2.2 Existing Distribution System Describe the basic elements of the distribution system. Include the capacity of the step-up transformer at the powerhouse, the distribution voltage(s) across the community, any transmission voltages, and other elements that will be affected by the proposed project. The New Stuyahok power plant generates at 277/480V three phase. There are seven manual breakers, serving two circuits in New Stuyahok and the 3-phase tieline to Ekwok. Three of the feeder breakers feed three each 100 kVA step up transformers. One feeder breaker feeds three each 50 kVA step up transformers. One feeder breaker feeds three each 100 KVA transformers for Ekwok. Voltage is 7200/12470 GNRDY. All distribution is overhead. The step-up transformers are pad mounted. AVEC is in the process of replacing the engine controls and distribution feeders with automated switchgear with funding that is not part of this application. The switchgear has been constructed and is scheduled for installation in 2023. 5.4.2 Existing Energy Generation Infrastructure and Production In the following tables, only fill in areas below applicable to your project. You can remove extra tables. If you have the data below in other formats, you can attach them to the application (see Section 11). Is there operational heat recovery? (Y/N) If yes estimated annual displaced heating fuel (gallons) Yes, operational heat recovery to school. There will be minimal effect to heat recovery during the shoulder seasons. Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 23 of 40 10/04/2022 The New Stuyahok power plant serves Ekwok, three phase, through an eight-mile intertie. There is three phase service to the school, airport, lift station, and water treatment plant, and single phase service to residential areas in New Stuyahok and Ekwok. 5.4.2.4 Annual Electricity Production and Fuel Consumption (Existing System) Use most recent year. Replace the section (Type 1), (Type 2), and (Type 3) with generation sources Month Generation (Diesel) (kWh) Generation (Type 2) (kWh) Fuel Consumption (Diesel- Gallons) Fuel Consumption [Other] Peak Load Minimum Load (Assumed 1/2 of average load) January 170,976 N/A 12,301 N/A 291.0 145.5 February 165,183 9,164 342.0 171.0 March 191,573 16,501 242.0 121.0 April 165,333 12,463 289.0 144.5 May 137,391 10,227 198.0 99.0 June 140,896 10,201 202.0 101.0 July 126,973 9,406 252.0 126.0 August 148,932 10,806 307.0 153.5 September 143,470 10,859 294.0 147.0 October 154,291 11,951 347.0 173.5 November 192,496 14,490 398.0 199.0 December 184,194 13,858 381.0 190.5 Total 1,921,708 142,677 Average 295.0 138.5 5.4.3 Future Trends Describe the anticipated energy demand in the community, or whatever will be affected by the project, over the life of the project. Explain how the forecast was developed and provide year by year forecasts. As appropriate, include expected changes to energy demand, peak load, seasonal variations, etc. that will affect the project. According to U.S. Census data, New Stuyahok and Ekwok’s populations have remained stable over the past 20 years. The 2020 estimated population for New Stuyahok was 512 people and 111 people for Ekwok. Diesel energy costs in New Stuyahok are high. Power costs for residences and community facilities are subsidized through Alaska’s Power Cost Equalization (PCE) program. For 2022, the average household monthly cost of power before the PCE was $352 in both New Stuyahok and Ekwok, and with the PCE subsidy the average household monthly cost was $215 in Ekwok and $231 in New Stuyahok. 5.4.2.3 O&M and replacement costs for existing units Power Generation Thermal Generation i. Annual O&M cost for labor $28,000 ii. Annual O&M cost for non-labor iii. Replacement schedule and cost for existing units Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 24 of 40 10/04/2022 Currently, major projects and increases in population are not planned or expected in New Stuyahok or Ekwok. However, as more parts of rural Alaska become connected with better internet service, energy demand and peak load could moderately increase in the foreseeable future due to more electronics use. In addition, the communities are always looking to bring new businesses and opportunities. Since energy demand is expected to rise in the future, solar energy development could be used to reduce the cost of energy and offset energy production from diesel fuel. Stabilizing the cost of energy provides various economics benefits to community, including reducing household energy costs, allowing commercial entities to pass along savings to residents, and increasing available funds to invest in improved community and social service. These economic benefits will reduce outmigration of individuals in response to excessive utility costs energy costs and ensure a consistent local energy market. 5.4.4 Proposed System Design Provide the following information for the proposed renewable energy system:  A description of renewable energy technology specific to project location  The total proposed capacity and a description of how the capacity was determined  Integration plan, including upgrades needed to existing system(s) to integrate renewable energy system: Include a description of the controls, storage, secondary loads, distribution upgrades that will be included in the project  Civil infrastructure that will be completed as part of the project—buildings, roads, etc.  Include what backup and/or supplemental system will be in place See the “Proposed System Design” section of the appropriate Best Practice Checklist for additional guidance. Once AVEC secures funding for this project, they will distribute a request for proposal to potential contractor/vendor. AVEC’s selection committee, electric and civil engineers, will select the contractor /vendor which proposes the best suited PV solar and battery storage system for the site and communities’ needs. Once selected, the contractor/vendor will design the solar array layout to best take advantage of the solar regime in New Stuyahok. The contractor/vendor would also design the civil infrastructure needed for the project including the screw-pile foundations for solar panels. Once AVEC’s Engineering Department reviews and approves the design, materials would be secured and transported to New Stuyahok by barge. It is expected the PV array would be constructed and incorporated into the existing system over one summer/fall. Renewable energy technology: AVEC will review the contractor/vendor recommendation for solar generation, conversion, and energy storage components to determine the best suited technology for the communities. Based off of information available now, AVEC anticipates connecting a distributed solar-battery hybrid system to the power plant and electric grid to serve New Stuyahok and neighboring Ekwok. Specifically, AVEC would install a 300-kW solar array with a 500-kW power conversion system and 500 kWh of battery storage. Proposed capacity/capacity determination: According to the NREL PVWatts Calculator tool, a 300-kW solar array system in New Stuyahok has the potential to produce 276,413 kilowatt hours (kWh) annually (CF=10.5%). The highest energy production would be in May (42,160 kWh) and June (38,224KWh) (report found in Tab G). Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 25 of 40 10/04/2022 Final design and engineering would determine distribution and power plant upgrades that would be needed prior to the installation of a solar array and battery storage. Integration plan: The solar infrastructure would connect to the existing diesel power plant. As planned, the diesel generators would continue running. The existing power plant with diesel fuel generators and power distribution system would be maintained to supplement the system and provide full power. Civil infrastructure: No civil infrastructure would be needed. The 300-kW PV array would be placed on and adjacent to the AVEC power plant’s gravel pad. The proximity to the facility would allow for easy energy incorporation into the existing system and operations and maintenance. The panels would be supported by simple screw-piles. Backup/supplemental system: The existing power plant with diesel fuel generators and the existing power distribution system will be maintained to provide for the full power needs of the community. 5.4.4.1 Proposed Power Generation Units Unit # Resource/ Fuel type Design capacity (kW) Make Model Expected capacity factor Expected life (years) Expected Availability 1 Solar 300 CSI Solar BiHiKu7 10.5% (NREL model) 25 276,413 kWh/year (NREL model) 5.4.4.2 Proposed Thermal Generation Units (if applicable) Generation unit Resource/ Fuel type Design capacity (MMBtu/hr) Make Model Expected Average annual efficiency Expected life N/A 5.4.5 Basic Operation of Proposed Energy System  To the best extent possible, describe how the proposed energy system will operate: When will the system operate, how will the system integrate with the existing system, how will the control systems be used, etc.  When and how will the backup system(s) be expected to be used See the “Proposed System Design” section of the appropriate Best Practice Checklist for additional guidance. Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 26 of 40 10/04/2022 The solar infrastructure would connect to the existing diesel power plant. As planned, the existing power plant with diesel fuel generators and power distribution system would be maintained to provide the full power needs to the communities. It is anticipated to make solar generation the primary energy source during periods of prolonged sun exposure would require a 500-kW power conversion system and a 500-kW energy storage system. The power conversion system and batteries would be located at the existing power plant. The selected contractor would design the solar energy system in New Stuyahok to supplement the existing diesel generators. During the summer, when the solar output is highest, electricity produced would provide periods of full power to New Stuyahok and Ekwok’s loads accompanied by the battery storage system. The anticipated effect of the proposed system is lower diesel fuel use for electrical power generation. Also, power generator use in New Stuyahok would be decreased, thereby decreasing generator operations and maintenance costs, enabling generators to last longer and need fewer overhauls. 5.4.3.1 Expected Capacity Factor 10.5% (from NREL calculator) 5.4.5.2 Annual Electricity Production and Fuel Consumption (Proposed System) Month Generation (Proposed System: Solar PV, from NREL) (kWh) Generation (Type 2: Diesel) (kWh) Generatio n (Type 3) (kWh) Fuel Consumption (Diesel- Gallons) Assume 13kW/gal Fuel Consumption [Other] Secondary load (kWh) Stora ge (kWh) January 5,782 165,194 NA 12,707 NA NA TBD February 13,019 152,164 11,705 March 28,954 162,619 12,509 April 36,201 129,132 9,933 May 42,160 95,231 7,325 June 38,224 102,672 7,898 July 35,224 91,749 7,058 August 29,799 119,133 9,164 September 22,387 121,083 9,314 October 13,159 141,132 10,856 November 6,722 185,774 14,290 December 4,780 179,414 13,801 Total 276,411 1,645,297 126,561 5.4.5.3 Annual Heating Fuel Consumption (Proposed System) Month Diesel (Gallons) Electricity Propane (Gallons) Coal (Tons) Wood (Cords, green tons, dry tons) Other January N/A February March Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 27 of 40 10/04/2022 April May June July August September October November December Total 5.4.6 Proposed System Operating and Maintenance (O&M) Costs O&M costs can be estimated in two ways for the standard application. Most proposed renewable energy projects will fall under Option 1 because the new resource will not allow for diesel generation to be turned off. Some projects may allow for diesel generation to be turned off for periods of time; these projects should choose Option 2 for estimating O&M. Option 1: Diesel generation ON For projects that do not result in shutting down diesel generation there is assumed to be no impact on the base case O&M. Please indicate the estimated annual O&M cost associated with the proposed renewable project. For the purpose of this analysis, $30/kW is assumed. NREL estimates a solar array’s O&M cost is estimated a $0.02/W which equates to $20/kW. The Northwest Arctic Borough uses $30/kW based on their experience with solar projects. Option 2: Diesel generation OFF For projects that will result in shutting down diesel generation please estimate: 1. Annual non-fuel savings of shutting off diesel generation 2. Estimated hours that diesel generation will be off per year. 3. Annual O&M costs associated with the proposed renewable project. 5.4.7 Fuel Costs Estimate annual cost for all applicable fuel(s) needed to run the proposed system (Year 1 of operation - 2025) Diesel (Gallons) Electricity Propane (Gallons) Coal (Tons) Wood Other Unit cost ($) $3.55 (based on AVEC 5 year fuel cost average) NA NA NA NA NA Annual Units 126,561 gals (see Table 5.4.5.2) Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 28 of 40 10/04/2022 Total Annual cost ($) $449,292 5.5 Performance and O&M Reporting For construction projects only 5.5.1 Metering Equipment Please provide a short narrative, and cost estimate, identifying the metering equipment that will be used to comply with the operations reporting requirement identified in Section 3.15 of the Request for Applications. AVEC installs meters on all renewable projects and will install a meter panel for this solar energy project. Metering equipment specifications and costs would be determined during the final design project phase. 5.5.2 O&M reporting Please provide a short narrative about the methods that will be used to gather and store reliable operations and maintenance data, including costs, to comply with the operations reporting requirement identified in Section 3.15 of the Request for Applications Reporting O&M data to AVEC’s management and funding agencies are included in the total O&M costs for the Cooperative. These costs are shared by all AVEC operations in all member communities. SECTION 6 – ECONOMIC FEASIBILITY AND BENEFITS 6.1 Economic Feasibility 6.1.1 Economic Benefit Annual Lifetime Anticipated Diesel Fuel Displaced for Power Generation (gallons) 20,295 (Assuming 276,413 kWh produced from renewables, and 13.62 kWh per gallon efficiency according to AVEC.) 507,366 Anticipated Fuel Displaced for Heat (gallons) 0 0 Total Fuel displaced (gallons) 20,295 507,366 Anticipated Diesel Fuel Displaced for Power Generation ($) $72,046 (Assuming AVEC fuel cost of $3.55 in 2025 from AVEC five-year average) $1,315,772 (See REF Model, based on 2025 fuel cost of $3.55 and an annual 1 percent increase) Anticipated Fuel Displaced for Heat ($) 0 0 Anticipated Power Generation O&M Cost Savings 0 0 Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 29 of 40 10/04/2022 Anticipated Thermal Generation O&M Cost Savings n/a n/a Total Other costs savings (taxes, insurance, etc.) 0 0 Total Fuel, O&M, and Other Cost Savings $72,046 $1,315,772 6.1.2 Economic Benefit Explain the economic benefits of your project. Include direct cost savings and other economic benefits, and how the people of Alaska will benefit from the project. Note that additional revenue sources (such as tax credits or green tags) to pay for operations and/or financing, will not be included as economic benefits of the project. Where appropriate, describe the anticipated energy cost in the community, or whatever will be affected by the project, over the life of the project. Explain how the forecast was developed and provide year-by-year forecasts The economic model used by AEA is available at https://www.akenergyauthority.org/What-We- Do/Grants-Loans/Renewable-Energy-Fund/2021-REF-Application. This economic model may be used by applicants but is not required. The final benefit/cost ratio used will be derived from the AEA model to ensure a level playing field for all applicants. If used, please submit the model with the application. Assuming the installation of a 300-kW capacity system, it could produce 276,413 kWh annually. The possible displacement of diesel fuel used for power generation in New Stuyahok could be approximately 20,295 gallons per year. Using AVEC’s five-year average of fuel prices to New Stuyahok of $3.55, this project could save $72,046 during the first year of operation. Over the 25- year life of the project, the estimated savings would be $1,315,772, based on 2025 fuel cost of $3.55 and an annual 1 percent increase. New Stuyahok’s economic goals expressed in their Comprehensive Plan (2005) include increasing employment and business opportunities for local residents. Ekwok’s Comprehensive Plan (2006) includes a number of economic goals, including “Decrease cost of living by developing alternative energy sources and increasing fuel capacity.” The goal for this project is to meet New Stuyahok and Ekwok’s economic goals and address the relative economic distress and energy-burdened circumstances by incorporating renewable solar energy into the local power generation system. To meet this goal, AVEC developed the following objectives: 1) Install a photo-voltaic (PV) solar array, power conversion system, and battery energy storage system in New Stuyahok. 2) Incorporate the renewable energy project into the existing power generation and distribution system to serve New Stuyahok and Ekwok. To achieve this goal and objective, AVEC proposes to install a 300-kW solar array with a 500-kW power conversion system and a 500-kWh battery storage to supplement the existing power generation system which serves New Stuyahok and Ekwok. The distributed solar-battery hybrid Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 30 of 40 10/04/2022 system would be constructed in New Stuyahok next to the existing power plant. The existing diesel system would remain in operation at a lower capacity to supplement solar energy. New Stuyahok and Ekwok have a strong Yup’ik culture and the desire to maintain a way of life which revolves around hunting, fishing, and other subsistence activities. Those activities are time consuming and often in conflict with the cash economy. This conflict, along with scarce jobs, is reflected in high unemployment and low family incomes. Within this economic backdrop, the cost of power in relation to income is steep. As of December 2022, the residential cost of electric power in New Stuyahok and Ekwok is $0.2376 per kWh for the first 750 kWh consumed in a given month, $0.6261 /kWh for power use in excess of 750 kWh in a month (AVEC Community Permanent Rates 2022). The reason the cost for rural power generation is so high is due to the high cost of diesel fuel delivered to the community used to create electrical power using diesel generators. This project will decrease the amount of diesel needed to generate power, which will help to lower the cost of energy in New Stuyahok and Ekwok. The energy costs for entities that are not subsidized by PCE are expected to decrease for residents and commercial entities in both communities, providing immediate savings. Reduced energy costs for non-PCE community institutions may allow for increased or improved community or social services. Similarly, reduced energy costs for other non-PCE commercial energy customers such as stores might result in savings to residents. 6.1.3 Economic Risks Discuss potential issues that could make the project uneconomic to operate and how the project team will address the issues. Factors may include:  Low prices for diesel and/or heating oil  Other projects developed in community  Reductions in expected energy demand: Is there a risk of an insufficient market for energy produced over the life of the project.  Deferred and/or inadequate facility maintenance  Other factors Economic risks from this project are primarily from the high startup costs, and economic viability is dependent on successful implementation and operation of solar energy infrastructure over a 25-year lifetime. Pilot projects and larger scale solar energy installations in Alaska have proven solar projects in similar locations to be economically viable. Although New Stuyahok and Ekwok have a small population, it is stable and isn’t expected to drop substantially in the near future. Electricity demand will remain and could increase if energy costs drop or if new opportunities arise. AEA projections suggest the cost of fuel in New Stuyahok will increase for the foreseeable future, suggesting costs for continued dependence on diesel powered electricity in New Stuyahok could become prohibitive. With implementation of solar energy, energy costs will likely decrease and help to ensure a stable population in New Stuyahok and Ekwok and a reliable energy market. Success of this project is dependent on maintenance of the existing energy infrastructure and the distribution system and the new solar array. AVEC has a complete and thorough process for tracking and maintaining energy infrastructure in all 58 communities the cooperative serves. Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 31 of 40 10/04/2022 6.1.4 Public Benefit for Projects with Direct Private Sector Sales For projects that include direct sales of power to private sector businesses (sawmills, cruise ships, mines, etc.), please provide a brief description of the direct and indirect public benefits derived from the project as well as the private sector benefits and complete the table below. See Section 1.6 in the Request for Applications for more information. Not applicable to this project. Renewable energy resource availability (kWh per month) NA Estimated direct sales to private sector businesses (kWh) NA Revenue for displacing diesel generation for use at private sector businesses ($) NA Estimated sales for use by the Alaskan public (kWh) NA Revenue for displacing diesel generation for use by the Alaskan public ($) NA 6.2 Other Public Benefit Describe the non-economic public benefits to Alaskans over the lifetime of the project. For the purpose of evaluating this criterion, public benefits are those benefits that would be considered unique to a given project and not generic to any renewable resource. For example, decreased greenhouse gas emission, stable pricing of fuel source, won’t be considered under this category. Some examples of other public benefits include:  The project will result in developing infrastructure (roads, trails, pipes, power lines, etc.) that can be used for other purposes  The project will result in a direct long-term increase in jobs (operating, supplying fuel, etc.)  The project will solve other problems for the community (waste disposal, food security, etc.)  The project will generate useful information that could be used by the public in other parts of the state  The project will promote or sustain long-term commercial economic development for the community The primary benefit of this project is to lower energy costs in New Stuyahok and Ekwok and to promote the local economy. As outlined in New Stuyahok and Ekwok’s community plans, subsistence is an important economic activity for many households. However, while subsistence may provide economic benefits, the cost of living (particularly energy costs) is still a major concern in Bristol Bay communities, and it threatens the sustainability of communities which do not have a strong cash economy. Lower costs of services Electric customers not eligible for PCE will receive the entire benefit of reduced power costs through their electric rates. Many businesses and community facilities pay the full cost of power: $0.6261/kWh, including local stores and schools. The savings these customers retain with a reduced electricity bill is likely to have a positive impact on the whole community. Local businesses, especially stores, may pass savings along to customers. The development and growth of local businesses are currently crippled by the high cost of energy. Decreases in electricity costs make small businesses more viable in these rural Alaska communities, which in turn makes economic development and the addition of local jobs more likely. Similarly, because schools pay the exorbitant, full price for electricity, there is less funding available in school budgets for programs which directly benefit students. The school may be able to increase Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 32 of 40 10/04/2022 the hours of the open-to-the-public gym with the savings in the electric costs. (This is especially beneficial in the long, dark, and cold winter.) The local economies of New Stuyahok and Ekwok has been hard hit by the rising costs of fuel and electricity, and by the State of Alaska budget shortfall. All of these factors affect the health and well-being and economic survival of rural Alaska communities and residents. Lowering the cost of electric services will help the communities recover and build a stronger economic foundation. Increased Food Security This project will supply affordable energy to support subsistence and food security. Lower electricity costs will increase community food security as lower energy costs will help residents keep freezers and refrigerators plugged in. New Stuyahok and Ekwok residents rely on a subsistence lifestyle where food is gathered and harvested and then stored for when it is needed. Salmon are harvested in the summer and expected to sustain families for the entire year. Refrigeration is essential for the extended storage of perishable foods, and low electric costs is essential for maintaining refrigeration. Reduced Risk of Spills and Emissions New Stuyahok and Ekwok are located on the Nushagak River about 80 miles upriver from Bristol Bay. The Bristol Bay salmon fishery is the world’s largest wild salmon fishery. Historically it has been one of the most lucrative in terms of harvest and product value. Because of the bay’s remote environment away from industrial development, and its healthy, largely untouched watershed, Bristol Bay is a vital refuge for both oceanic and freshwater fish species – including sockeye salmon, other fish species, and marine mammals. As such, it is important for the surrounding communities to protect the valuable salmon fishery and to reduce risk of spill and contamination into its productive waters. With the installed solar system, fuel consumption would be reduced, the volume of fuel transported by barge on the Nushagak River would be less, and the potential for accidental spills in this important watershed would be lessened. The solar energy project will offset diesel consumption and reduce emissions due to burning diesel fuel. Air quality would be better. According to the Environmental Protection Agency Greenhouse Gas Equivalencies Calculator, a 300-kW solar array and battery storage project in New Stuyahok would decrease CO2 emissions by 216 metric tons per year and 5,412 tons over the 25-year life of the project. Promote Self-Sufficiency and Economic Diversification To maintain a community, it must be affordable to live there. The high cost of power is one reason many residents feel forced to leave rural Alaska. Affordable power makes it possible for residents to maintain a basic quality of life, to grow existing businesses, and to start new ones. Knowing power costs will be affordable now and, in the future, has a stabilizing effect on the local economy. Affordable power is the foundation for energy self-sufficiency and diversification in the economy. With this project, and its goals of more affordable power, AVEC is providing a foundation for growth in the local economy. More affordable and reliable power will allow for new and existing businesses to be more self-sufficient and for the local economy to diversify. The high cost of energy limits the economic development. In turn, the lack of commercial and industrial development keeps electrical loads small, limiting the spread of fixed costs to fewer kilowatt-hour sales. In many communities across the country, small and large businesses – and perhaps industrial facilities – pay a larger share of utility costs than residential users. In doing so, they help pay for necessary upgrades and improvements to utility systems. Some areas in Alaska Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 33 of 40 10/04/2022 have seafood processing plants or tourist facilities which pay a larger share of their community’s utilities costs. Neither New Stuyahok nor Ekwok have such industry support and rely on state and federal programs and its own low- and moderate-income households to operate and maintain local utility systems. This project will help fund improvements which lower electricity costs for New Stuyahok and Ekwok residents. SECTION 7 – SUSTAINABILITY Describe your plan for operating the completed project so that it will be sustainable throughout its economic life. At a minimum for construction projects, a business and operations plan should be attached and the applicant should describe how it will be implemented. See Section 11. 7.1.1 Operation and Maintenance Demonstrate the capacity to provide for the long-term operation and maintenance of the proposed project for its expected life  Provide examples of success with similar or related long-term operations  Describe the key personnel that will be available for operating and maintaining the infrastructure.  Describe the training plan for existing and future employees to become proficient at operating and maintaining the proposed system.  Describe the systems that will be used to track necessary supplies  Describe the system will be used to ensure that scheduled maintenance is performed As a local utility that has been in operation since 1968, AVEC is completely able to finance, operate, and maintain this project for the design life. AVEC has capacity and experience to operate this project. AVEC has operating renewable energy projects throughout the state and is familiar with planning, constructing, operating, and maintaining solar systems. See section 10 for a complete discussion of AVEC’s success with similar or related long-term operations. AVEC has a large and geographically diverse staff capable of operating and maintaining energy infrastructure. AVEC follows established and proven protocols for training existing and future employees to operate and maintain diesel and renewable generation facilities. Throughout AVEC’s time as a leading energy cooperative, AVEC has had success with training and onboarding of renewable infrastructure projects in Alaska. See section 4 for a detailed discussion of key personnel assigned to ensure successful completion of this project. AVEC will use tracking protocols already in practice to track necessary tasks associated with the proposed solar and battery project in New Stuyahok. The solar array system would be incorporated into AVEC’s established and proven power plant operation and maintenance system. Local plant operators would provide daily servicing. AVEC technicians would continue to provide periodic preventative or corrective maintenance and would be supported by AVEC headquarters staff, purchasing, and warehousing. 7.1.2 Financial Sustainability  Describe the process used (or propose to use) to account for operational and capital costs.  Describe how rates are determined (or will be determined). What process is required to set rates?  Describe how you ensure that revenue is collected. Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 34 of 40 10/04/2022  If you will not be selling energy, explain how you will ensure that the completed project will be financially sustainable for its useful life. The capital costs of a solar PV array and battery are estimated from previous AVEC experience. The costs of operations and maintenance of the proposed project would be determined by through the feasibility study. Currently, the estimated annual O&M for this project is $6,000 based on NREL guidance and Northwest Arctic Borough costs. All AVEC facilities O&M costs are funded through ongoing energy sales. AVEC has well established and proven processes in place to account for setting rates, ensuring revenue is collected, and maintaining financial sustainability of infrastructure over their operational lives. Rates are inclusive of a kWh charge, a fuel charge, a flat customer charge fee, sale tax (in some communities), and a demand charge (if service billed on a demand meter). Many residential and community facilities receive a PCE deduction for up to 750kWh per month. As a recipient of PCE, AVEC’s rates are reviewed and approved by the Regulatory Commission of Alaska. When renewable energy is added to an existing diesel generation system, AVEC determines the cost of electricity based lower fuel use for generation and the cost of operating the new renewable energy system. AVEC ensures that bills are collected through monthly billing and easy payment options (mail, online, over the phone, autopay, by credit card, etc.). AVEC helps customers obtain financial assistance when needed. As a last resort, AVEC can disconnect customers for nonpayment. 7.1.2.1 Revenue Sources Briefly explain what if any effect your project will have on electrical rates in the proposed benefit area over the life of the project. If there is expected to be multiple rates for electricity, such as a separate rate for intermittent heat, explain what the rates will be and how they will be determined Collect sufficient revenue to cover operational and capital costs  What is the expected cost-based rate (as consistent with RFA requirements)  If you expect to have multiple rate classes, such as excess electricity for heat, explain what those rates are expected to be and how those rates account for the costs of delivering the energy (see AEA’s white paper on excess electricity for heat).  Annual customer revenue sufficient to cover costs  Additional incentives (i.e., tax credits)  Additional revenue streams (i.e., green tag sales or other renewable energy subsidies or programs that might be available) As previously described, this project will decrease the amount of diesel needed to generate power, which will help to lower the cost of energy in New Stuyahok and Ekwok. The energy costs for entities that are not subsidized by PCE are expected to decrease. As a non-profit utility cooperative, AVEC’s 58 member communities share the project and O&M costs and the benefits renewable energy development have on electric bills. AVEC’s rates are established by the Regulatory Commission of Alaska and cover all costs needed to maintain an electric cooperative. Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 35 of 40 10/04/2022 There will be no separate rates, costs, incentives, or additional revenue associated with this project. 7.1.2.2 Power Purchase/Sale The power purchase/sale information should include the following:  Identification of potential power buyer(s)/customer(s)  Potential power purchase/sales price - at a minimum indicate a price range (consistent with the Section 3.16 of the RFA) Identify the potential power buyer(s)/customer(s) and anticipated power purchase/sales price range. Indicate the proposed rate of return from the grant-funded project. Include letters of support or power purchase agreement from identified customers. Identification of potential power buyer(s)/customer(s): AVEC, the existing electric utility serving New Stuyahok and Ekwok, is a non-profit, member-owned cooperative electric utility and typically owns and maintains the generation, fuel storage, and distribution facilities in the villages it serves. No power purchase or sales agreements would be needed for this project. There are 99 residential accounts in New Stuyahok and 43 in Ekwok who purchase power from AVEC. There are also 18 combine community accounts which include the health clinic, city offices, school, and water treatment plan who also purchase power from AVEC. Potential power purchase/sales price: There will be no potential power purchase/sales associated with this project. SECTION 8 – PROJECT READINESS 8.1 Project Preparation Describe what you have done to prepare for this award and how quickly you intend to proceed with work once your grant is approved. Specifically address your progress towards or readiness to begin, at a minimum, the following:  The phase(s) that must be completed prior to beginning the phase(s) proposed in this application  The phase(s) proposed in this application  Obtaining all necessary permits  Securing land access and use for the project  Procuring all necessary equipment and materials Refer to the RFA and/or the pre-requisite checklists for the required activities and deliverables for each project phase. Please describe below and attach any required documentation. A 2016 NREL study quantified the solar potential across Alaska and completed a solar resource assessment that is used in most feasibility work for solar in the state. The full feasibility study is attached in Tab G. NREL modeling for this project also showed a system output of 276,413 kWh/year in New Stuyahok. AEA REF modeling showed that the installation of a 300-kW capacity system could produce 276,413 kWh annually. The possible displacement of diesel fuel used for power generation in New Stuyahok could be approximately 21,246 gallons per year. Using AEA’s community fuel oil price projections, this project could save $61,196 during the first year of operation. Over the 25-year life of the project, the estimated savings would be $1,030,198. AVEC has identified and secured a location for the solar array and battery storage system adjacent to the existing power plant. The land is owned by the New Stuyahok Limited, and they have agreed to provide a Quit Claim Deed to AVEC to authorize use of the land, which is will be signed and Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 36 of 40 10/04/2022 recorded in January 2023. New Stuyahok residents are engaged and ready to work on this important community project. AVEC has completed the needed research and determined that there are no permits or environmental approvals needed. (See section 5.2.) AVEC does not anticipate any issues in procuring necessary equipment and materials. While supply chain issues related to solar panel demand have caused some delays in project equipment, AVEC would order materials and making a shipping plan as soon as the final design is complete at the beginning of 2024. No other grants have been secured for this work in the past. 8.2 Demand- or Supply-Side Efficiency Upgrades If you have invested in energy efficiency projects that will have a positive impact on the proposed project, and have chosen to not include them in the economic analysis, applicants should provide as much documentation as possible including: 1. Explain how it will improve the success of the RE project 2. Energy efficiency pre and post audit reports, or other appropriate analysis, 3. Invoices for work completed, 4. Photos of the work performed, and/or 5. Any other available verification such as scopes of work, technical drawings, and payroll for work completed internally. New Stuyahok and Ekwok have worked on many energy efficiency upgrades over the years to make best use of its electricity and resources. In 2017, the Alaska Native Tribal Health Consortium (ANTHC), completed a comprehensive energy audit of the New Stuyahok Water Plant. AEA also supported Ekwok (Grant #219225) in Village End Use Energy Efficiency Measures Program to provide energy efficiency upgrades to 11 community buildings in 2009 and 2010. Through the same program, AEA also supported New Stuyahok (Grant #219225) to provide energy efficiency upgrades to 15 community buildings and two teacher-housing units in 2009. SECTION 9 – LOCAL SUPPORT AND OPPOSITION Describe local support and opposition, known or anticipated, for the project. Include letters, resolutions, or other documentation of local support from the community that would benefit from this project. Provide letters of support, memorandum of understandings, cooperative agreements between the applicant, the utility, local government and project partners. The documentation of support must be dated within one year of the RFA date of November 16, 2021. Please note that letters of support from legislators will not count toward this criterion. The community is committed to moving this project forward and fully supports evaluating solar energy as a viable option for sustainable energy infrastructure in the community. Letters of support for this project have been received from the City of New Stuyahok, City of Ekwok, New Stuyahok Village, Ekwok Village Tribal Council, Stuyahok, Ltd., and Ekwok Natives, Ltd. Letters of support can be found under Tab B. Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 37 of 40 10/04/2022 SECTION 10 – COMPLIANCE WITH OTHER AWARDS Identify other grants that may have been previously awarded to the Applicant by AEA for this or any other project. Describe the degree you have been able to meet the requirements of previous grants including project deadlines, reporting, and information requests. AVEC has been providing electrical services to rural, isolated, and economically-disadvantaged Alaskan communities since 1968. The Cooperative began with three communities and a very small staff, and has steadily grown to the impressive non-profit organization it is today, with 58-member villages. AVEC started out with loans from the USDA RUS, and became a Denali Commission partner in 2001. AVEC now has over 90 employees. There are generation technicians, linemen, managers, engineers, expediters, and others in its central office in Anchorage, and plant operators within member communities. With the signatures on this application, AVEC certifies that it is a legally incorporated, non-profit entity eligible to receive federal grant funding for the proposed project. Documentation of incorporation is available upon request. AVEC has the largest geographic service area of any retail electric cooperative in the world. It has demonstrated non-stop dedication to bringing stable and efficient sources of electricity to homes, schools, clinics, water and sewer systems, businesses, and communications infrastructure in its member villages. AVEC operates 160 diesel generators throughout its service area and purchases over 9 million gallons of fuel annually. The generators produce electric power for member communities, running a cumulative total of more than 420,000 hours per year. In 2021, AVEC generated 124 million kWh in power sales. Each of AVEC’s 58 villages conducts an annual village meeting for the express purpose of electing a delegate to represent their community at AVEC’s Annual Cooperative Meeting held in Anchorage each April. At the Annual Meeting, the delegates discuss AVEC business and elect members to serve on the seven-member board of directors. AVEC and the local governments operate as a partnership. Under operating agreements with all member communities, local control is exercised. The village governments hire the plant operators and oversee the day-to-day operation of power generation plants. The AVEC Board of Directors and staff are committed to the on-going effort of increasing the efficiencies and effectiveness of power-producing facilities and distribution lines in all member villages. They believe that by improving the power generation and distribution in each community, they are helping to improve the future of all impacted residents. Since 2000, AVEC has reliably and responsibly spent over $299 million of grant funds plus its own money to construct over 120 major projects. This includes 36 bulk fuel tank farm upgrades or replacements, 19 new diesel-fired power plants, 7 standby backup power plants, 22 (grant funded or AVEC funded) recovered heat systems, 14 wind farms (32 total wind turbines), 8 village-to- village interties, 1 photovoltaic (PV) solar array, and 33 other generation and distribution upgrades. Funding for these projects has come from the Denali Commission ($227 million), the Alaska Energy Authority ($38 million), USDA RUS direct awards ($14 million), USDE Office of Indian Energy ($4 million), other grants ($18 million), and AVEC matching contributions ($37 million). AVEC has been awarded over 41 AEA grants, details for these grants are attached in Tab G. Renewable Energy Fund Round 15 Grant Application – Standard Form AEA 23046 Page 38 of 40 10/04/2022 SECTION 11 – LIST OF SUPPORTING DOCUMENTATION FOR PRIOR PHASES In the space below, please provide a list of additional documents attached to support completion of prior phases. NREL Solar PV Alaska Study Wetlands determination Endangered species determination No historic properties affected document Construction estimate SECTION 12 – LIST OF ADDITIONAL DOCUMENTATION SUBMITTED FOR CONSIDERATION In the space below, please provide a list of additional information submitted for consideration. Tab A – Resumes Tab B – Letters of Support Tab C – Heat Tab D – Authority Tab E – Electronic Application Tab F – Certification Tab G – Additional Materials (Construction Estimate; REF Round 15 Economic Evaluation Model; AVEC AEA Grant Summary; NREL Solar PV Alaska Study; Wetlands Determination; Endangered Species Determination; No historic properties affected document) Tab A Resumes Tab B Letters of Support Tab C Heat Project Information No information provided in this section. Not applicable to this project. Tab D Authority Tab E Electronic Application Application was submitted electronically. Not applicable to this project. Tab F Certification Tab G Additional Materials ‐ Construction Budget ‐ AVEC AEA Grant Summary ‐ Evaluation Model ‐ NREL PV Watts Calculation ‐ NREL Solar Energy Prospecting in Rural Alaska Report ‐ Endangered Species Report ‐ Complete Wetland delineation ‐ No historic properties affected document ALASKA VILLAGE ELECTRIC CO-OP Detailed Cost Estimate:REF Application New Stuyahok Date 12/5/2022 Description: Install 300 kWHr Solar Arrays and 500 kW Battery Storage - New Stuyahok cost ($)cost ($) Design Permitting Construction Solar Array - SubTotal 1,937,000 Geotechnical Services 2,000 Construction BESS - Sub Total 751,000 Design and Permitting 110,000 Total Construction Cost Estimate 2,688,000 Design/Permitting 112,000 Design/Permitting Total Estimated Cost 112,000 Total Estimated Cost 2,800,000 Qty cost ($)Qty cost ($) 1 Metering - Bidirectional, CT Cabinet 12,000 1 Battery Building/Connex 50,000 1 AC Disconnect 5,000 1 Lot Batteries, Li Fe Phosphate, 500 kWh 225,000 3 DC Combiner Panels 60,000 1 Lot 500 kVA Inverter 150,000 1 Auxilary Power Center 18,000 1 Lot Battery Management Control System 80,000 3 String Inverter - 100 kVA, UL 1741 185,000 1 Lot Fire Suppression 25,000 1 AC Combiner Switchbd, 480V, 600A 75,000 1 Lot Ventilation ducts, dampers 20,000 462 Solar Modules - 650W AC, Bifacial 416,000 1 Lot Conduit, wiring 10,000 1 Lot Solar Panel mounting & supports 180,000 1 Lot Grounding 2,000 1 Lot AC Conduit/ wiring 80,000 1 Lot Lighting fixtures, outlets, etc.2,000 1 Lot DC Conduit/ wiring, 850VDC 100,000 1 Lot Breaker panels 30,000 1 Lot Fiber/Communication 55,000 1 Lot Heating, Cooling, & controls 25,000 1 Lot Grounding 8,000 1 Lot Site Preparation 10,000 1 Lot Site work 95,000 1 Lot Metering - Bidirectional, CT Cabinet 12,000 1 Lot Fencing 75,000 BESS - Design for Construction 32,000 1 Lot Integration PV Controls 125,000 Miscellaneous/Contingencies 64,000 1 Lot Distribution Interconnection 130,000 Project Management 2,500 Miscellaneous/Contingencies 162,000 Final Acceptance/Commissioning 10,000 PV - Design for Construction 142,000 Post-Construction Cert. & Report 1,500 Project Management 2,500 Sub-Total BESS Construction 751,000 Final Acceptance/Commissioning 10,000 Post-Construction Cert. & Report 1,500 Sub-Total PV Construction 1,937,000 Construction - Battery Storage - 500 kWHrConstruction - 300 kWHr Solar Array Summary of CostsDesign/Permitting - PV/BESS Grant # / Application #No.Description Notes Year Funded Grant #2195244 Wind Turbine Foundation Design & Testing Project (DC project 27D Toksook Bay)Completed successfully; facilities now in service.2005 AES Grant #2195281 Chevak Wind Farm Project (DC project 29E)Completed successfully; facilities now in service.2007 AES Grant #2195412 Ambler Solar PV Construction Failed early feasibility evaluation, returned bulk of funds.2008 RD1 Grant #2195432 Bethel Wind Farm Completed successfully; facilities now in service.2008 RD1 Grant #2195413 Cosmos Hills Hydro Feasibility Completed successfully; feasibility only.2008 RD1 Grant #2195384 Mekoryuk Wind Farm Construction Completed successfully; facilities now in service.2008 RD1 Grant #2195431 Old Harbor Hydroelectric Final Design Completed successfully (design). FERC licensure in place.2008 RD1 Grant #2195383 Quinhagak Wind Farm Construction Completed successfully; facilities now in service.2008 RD1 Grant #2195385 Toksook Bay Wind Farm Expansion Construction Completed successfully; facilities now in service.2008 RD1 Grant #2195463 Shaktoolik Wind Construction Completed successfully; facilities now in service.2009 RD2 Grant #2195464 Teller Wind Analysis Completed successfully; feasibility only.2009 RD2 Grant #2195468 Emmonak/Alakanuk Wind Design and Construction Completed successfully; facilities now in service.2009 RD2 Grant #7030006 New Stuyahok Wind Analysis Completed successfully; feasibility only.2009 RD2 Grant #7030016 Kivalina Wind-Intertie Feasibility Analysis & Conceptual Design Completed successfully; feasibility only.2010 RD3 Grant #7040008 Stebbins Wind Feasibility Completed successfully; feasibility only.2011 RD4 Grant #7040014 Old Harbor Hydroelectric Project Completed successfully (design). FERC licensure in place.2011 RD4 Grant #7040017 St. Mary's/ Pitka's Point Wind Design and Construction Completed successfully; facilities now in service.2011 RD4 Grant #7040019 Eek Wind Feasibility Completed successfully; feasibility only.2011 RD4 Grant #7040021 Marshall Wind Feasibility Study Completed successfully; feasibility only.2011 RD4 Grant #7040022 Scammon Bay Wind Feasibility Completed successfully; feasibility only.2011 RD4 Grant #7040030 Selawik Hybrid Wind Diesel System Turbine Upgrade Assessment Completed successfully; feasibility only.2011 RD4 Grant #7040049 Kaltag Solar Construction Completed successfully; facilities now in service.2011 RD4 Grant #7040052 Koyuk Wind Feasibility Study Community declined to participate. Returned funding.2011 RD4 Grant #7040053 Elim Wind Feasibility Study Completed successfully; feasibility only.2011 RD4 Grant #7050870 Surplus Wind Energy Recovery for Mekoryuk Water System Heat Completed successfully; facilities now in service.2012 RD5 Grant #7050871 Shaktoolik Surplus Wind Energy Recovery for Water System Heat Completed successfully; facilities now in service.2012 RD5 Grant #7050875 Surplus Wind Energy Recovery for Chevak Water System Heat Completed successfully; facilities now in service.2012 RD5 Grant #7050876 Surplus Wind Energy Recovery for Gambell Water System Heat Completed successfully; facilities now in service.2012 RD5 Grant #7060939 Stebbins Heat Recovery Project Completed successfully; facilities now in service.2013 RD6 Grant #7071067 Mountain Village Wind Feasibility and Conceptual Design Completed successfully; feasibility only.2014 RD7 Grant #7071068 Stebbins St. Michael Wind Energy Final Design and Permitting Completed successfully; final design and permitting.2014 RD7 Grant #7081118 Bethel Power Plant Heat Recovery Assessment & Conceptual Design Completed successfully; feasibility and coceptual design.2015 RD8 Grant #7091223 Shishmaref Wind Energy Feasibility and CDR In progress. 2018 RD9 Grant #7091224 Mountain Village-St. Mary's Wind Intertie Project Completed successfully; facilities constructed. 2018 RD9 Grant #7110056 Togiak RPSU Completed successfully; facilities now in service.2017 Grant #7110082 Anvik DERA Replace Engine Position 3 Completed successfully; new engine commissioned and on-line.2019 Grant #7210025 Holy Cross BFU Completed successfully; facilities now in service.2017 Grant #7310305 Grid Bridging System Research and Development In progress.2019 Application #13002 Goodnews Bay Wind Energy Feasibility & Conceptual Design Project In progress.2020 RD13 Application #13003 Kotlik Wind Energy Feasibility & Conceptual Design Project In progress.2020 RD13 Application #14004 Pilot Station Wind Energy Feasibility Study & Conceptual Design Project In progress.2021 RD14 Application #14002 Holy Cross Solar Energy & Battery Storage Feasibility Project In progress.2021 RD14 Renewable Energy Fund Economic Benefit-Cost Analysis Model Project Description Community Nearest Fuel Community Region RE Technology Project ID Applicant Name Project Title Results NPV Benefits $856,192.49 NPV Capital Costs $2,718,447 B/C Ratio 0.31 NPV Net Benefit ($1,706,204) Performance Unit Value Displaced Electricity kWh per year 276,413 Displaced Electricity total lifetime kWh 6,910,325 Displaced Petroleum Fuel gallons per year 20,295 Displaced Petroleum Fuel total lifetime gallons 507,366 Displaced Natural Gas MCF per year - Displaced Natural Gas total lifetime MCF - Avoided CO2 tonnes per year 207 Avoided CO2 total lifetime tonnes 5,170 Proposed System Unit Value Capital Costs $2,800,000$ Project Start year 2025 Project Life years 25 Displaced Electric kWh per year 276,413 Displaced Heat gallons displaced per year Renewable Generation O&M (Electric)$ per year 28,000 Renewable Generation O&M (Heat)$ per year Diesels OFF time Hours per year Electric Capacity kW 300 Electric Capacity Factor %11% Heating Capacity Btu/hr Heating Capacity Factor %#DIV/0! Total Other Public Benefit 2021$ (Total over the life of the project)0 Base System Size of impacted engines (select from list)$/hr Diesel Generator O&M 151-360kW 9.35$ Applicant's Diesel Generator Efficiency kWh per gallon 13.62 Total current annual diesel generation kWh/gallon 1,921,708 13.62 Diesel Generation Efficiency Solar PV Alaska Village Electric Cooperative New Stuyahok Solar Energy and Battery Storage Project NOTICE: By default, this sheet is locked. If you need to unlock the sheet go to 'Review' in ribbon bar, select 'Unprotect Sheet', then input passcode: REFRound15 New Stuyahok New Stuyahok Rural Annual Cost Savings Units 2025 2026 2027 2028 2029 Entered Value Project Capital Cost $ per year 2,800,000$ CALCULATION Electric Cost Savings $ per year 44,046$ 44,766$ 45,494$ 46,229$ 46,971$ CALCULATION Heating Cost Savings $ per year -$ -$ -$ -$ -$ Entered Value Other Public Benefits $ per year -$ -$ -$ -$ -$ CALCULATION Total Cost Savings $ per year 44,046$ 44,766$ 45,494$ 46,229$ 46,971$ CALCULATION Net Benefit $ per year (2,755,954)$ 44,766$ 45,494$ 46,229$ 46,971$ 2700000 2,655,234$ 2,609,739$ 2563510.433 2516539.104 Electric Units 2025 2026 2027 2028 2029 Enter Value if generation changes Renewable Generation kWh per year 276,413 276,413 276,413 276,413 276,413 Entered Value Renewable scheduled replacement(s) (Electric)$ per year -$ -$ -$ -$ REFERENCE: Cell D34 Renewable O&M (Electric)$ per year 28,000$ 28,000$ 28,000$ 28,000$ 28,000$ Entered Value Renewable Electric Other costs $ per year Entered Value Renewable Fuel Use Quantity (Biomass)green tons Entered Value Renewable Fuel Cost $ per unit CALCULATION Total Renewable Fuel Cost (Electric)$ per year -$ -$ -$ -$ -$ Proposed Generation Cost (Electric)$ per year 28,000$ 28,000$ 28,000$ 28,000$ 28,000$ REFERENCE: Cell D32 Displaced Fossil Fuel Generation kWh per year 276,413 276,413 276,413 276,413 276,413 REFERENCE: Worksheet 'Diesel Fuel Prices'Displaced Fuel Price $ per gallon 3.55$ 3.59$ 3.62$ 3.66$ 3.69$ Enter Value if Diesels are OFF Displaced Scheduled component replacement(s)$ per year -$ -$ -$ -$ CALCULATION Displaced O&M $ per year -$ -$ -$ -$ -$ CALCULATION Displaced Fuel Use gallons per year 20,295 20,295 20,295 20,295 20,295 CALCULATION Displaced Fuel Cost $ per year 72,046$ 72,766$ 73,494$ 74,229$ 74,971$ CALCULATION Base Generation Displaced Cost $ per year 72,046$ 72,766$ 73,494$ 74,229$ 74,971$ Proposed Base Annual Cost Savings Units 2030 2031 2032 2033 2034 Entered Value Project Capital Cost $ per year CALCULATION Electric Cost Savings $ per year 47,721$ 48,478$ 49,243$ 50,015$ 50,796$ CALCULATION Heating Cost Savings $ per year -$ -$ -$ -$ -$ Entered Value Other Public Benefits $ per year -$ -$ -$ -$ CALCULATION Total Cost Savings $ per year 47,721$ 48,478$ 49,243$ 50,015$ 50,796$ CALCULATION Net Benefit $ per year 47,721$ 48,478$ 49,243$ 50,015$ 50,796$ 2468818.063 2420339.811 2,371,096.78$ Electric Units 2030 2031 2032 2033 2034 Enter Value if generation changes Renewable Generation kWh per year 276,413 276,413 276,413 276,413 276,413 Entered Value Renewable scheduled replacement(s) (Electric)$ per year -$ -$ -$ -$ REFERENCE: Cell D34 Renewable O&M (Electric)$ per year 28,000$ 28,000$ 28,000$ 28,000$ 28,000$ Entered Value Renewable Electric Other costs $ per year Entered Value Renewable Fuel Use Quantity (Biomass)green tons Entered Value Renewable Fuel Cost $ per unit CALCULATION Total Renewable Fuel Cost (Electric)$ per year -$ -$ -$ -$ -$ Proposed Generation Cost (Electric)$ per year 28,000$ 28,000$ 28,000$ 28,000$ 28,000$ REFERENCE: Cell D32 Displaced Fossil Fuel Generation kWh per year 276,413 276,413 276,413 276,413 276,413 REFERENCE: Worksheet 'Diesel Fuel Prices'Displaced Fuel Price $ per gallon 3.73$ 3.77$ 3.81$ 3.84$ 3.88$ Enter Value if Diesels are OFF Displaced Scheduled component replacement(s)$ per year -$ -$ -$ -$ CALCULATION Displaced O&M $ per year -$ -$ -$ -$ -$ CALCULATION Displaced Fuel Use gallons per year 20,295 20,295 20,295 20,295 20,295 CALCULATION Displaced Fuel Cost $ per year 75,721$ 76,478$ 77,243$ 78,015$ 78,796$ CALCULATION Base Generation Displaced Cost $ per year 75,721$ 76,478$ 77,243$ 78,015$ 78,796$ Proposed Base Annual Cost Savings Units 2035 2036 2037 2038 2039 Entered Value Project Capital Cost $ per year CALCULATION Electric Cost Savings $ per year 51,584$ 52,379$ 53,183$ 53,995$ 54,815$ CALCULATION Heating Cost Savings $ per year -$ -$ -$ -$ -$ Entered Value Other Public Benefits $ per year -$ -$ -$ -$ -$ CALCULATION Total Cost Savings $ per year 51,584$ 52,379$ 53,183$ 53,995$ 54,815$ CALCULATION Net Benefit $ per year 51,584$ 52,379$ 53,183$ 53,995$ 54,815$ Electric Units 2035 2036 2037 2038 2039 Enter Value if generation changes Renewable Generation kWh per year 276,413 276,413 276,413 276,413 276,413 Entered Value Renewable scheduled replacement(s) (Electric)$ per year -$ -$ -$ -$ -$ REFERENCE: Cell D34 Renewable O&M (Electric)$ per year 28,000$ 28,000$ 28,000$ 28,000$ 28,000$ Entered Value Renewable Electric Other costs $ per year Entered Value Renewable Fuel Use Quantity (Biomass)green tons Entered Value Renewable Fuel Cost $ per unit CALCULATION Total Renewable Fuel Cost (Electric)$ per year -$ -$ -$ -$ -$ Proposed Generation Cost (Electric)$ per year 28,000$ 28,000$ 28,000$ 28,000$ 28,000$ REFERENCE: Cell D32 Displaced Fossil Fuel Generation kWh per year 276,413 276,413 276,413 276,413 276,413 REFERENCE: Worksheet 'Diesel Fuel Prices'Displaced Fuel Price $ per gallon 3.92$ 3.96$ 4.00$ 4.04$ 4.08$ Enter Value if Diesels are OFF Displaced Scheduled component replacement(s)$ per year -$ -$ -$ -$ -$ CALCULATION Displaced O&M $ per year -$ -$ -$ -$ -$ CALCULATION Displaced Fuel Use gallons per year 20,295 20,295 20,295 20,295 20,295 CALCULATION Displaced Fuel Cost $ per year 79,584$ 80,379$ 81,183$ 81,995$ 82,815$ CALCULATION Base Generation Displaced Cost $ per year 79,584$ 80,379$ 81,183$ 81,995$ 82,815$ Proposed Base Annual Cost Savings Units 2040 2041 2042 2043 2044 Entered Value Project Capital Cost $ per year CALCULATION Electric Cost Savings $ per year 55,643$ 56,480$ 57,324$ 58,178$ 59,039$ CALCULATION Heating Cost Savings $ per year -$ -$ -$ -$ -$ Entered Value Other Public Benefits $ per year -$ -$ -$ -$ -$ CALCULATION Total Cost Savings $ per year 55,643$ 56,480$ 57,324$ 58,178$ 59,039$ CALCULATION Net Benefit $ per year 55,643$ 56,480$ 57,324$ 58,178$ 59,039$ Electric Units 2040 2041 2042 2043 2044 Enter Value if generation changes Renewable Generation kWh per year 276,413 276,413 276,413 276,413 276,413 Entered Value Renewable scheduled replacement(s) (Electric)$ per year -$ -$ -$ -$ -$ REFERENCE: Cell D34 Renewable O&M (Electric)$ per year 28,000$ 28,000$ 28,000$ 28,000$ 28,000$ Entered Value Renewable Electric Other costs $ per year Entered Value Renewable Fuel Use Quantity (Biomass)green tons Entered Value Renewable Fuel Cost $ per unit CALCULATION Total Renewable Fuel Cost (Electric)$ per year -$ -$ -$ -$ -$ Proposed Generation Cost (Electric)$ per year 28,000$ 28,000$ 28,000$ 28,000$ 28,000$ REFERENCE: Cell D32 Displaced Fossil Fuel Generation kWh per year 276,413 276,413 276,413 276,413 276,413 REFERENCE: Worksheet 'Diesel Fuel Prices'Displaced Fuel Price $ per gallon 4.12$ 4.16$ 4.20$ 4.25$ 4.29$ Enter Value if Diesels are OFF Displaced Scheduled component replacement(s)$ per year -$ -$ -$ -$ -$ CALCULATION Displaced O&M $ per year -$ -$ -$ -$ -$ CALCULATION Displaced Fuel Use gallons per year 20,295 20,295 20,295 20,295 20,295 CALCULATION Displaced Fuel Cost $ per year 83,643$ 84,480$ 85,324$ 86,178$ 87,039$ CALCULATION Base Generation Displaced Cost $ per year 83,643$ 84,480$ 85,324$ 86,178$ 87,039$ Proposed Base Annual Cost Savings Units 2045 2046 2047 2048 2049 Entered Value Project Capital Cost $ per year CALCULATION Electric Cost Savings $ per year 59,910$ 60,789$ 61,677$ 62,574$ 63,479$ CALCULATION Heating Cost Savings $ per year -$ -$ -$ -$ -$ Entered Value Other Public Benefits $ per year -$ -$ -$ -$ -$ CALCULATION Total Cost Savings $ per year 59,910$ 60,789$ 61,677$ 62,574$ 63,479$ CALCULATION Net Benefit $ per year 59,910$ 60,789$ 61,677$ 62,574$ 63,479$ Electric Units 2045 2046 2047 2048 2049 Enter Value if generation changes Renewable Generation kWh per year 276,413 276,413 276,413 276,413 276,413 Entered Value Renewable scheduled replacement(s) (Electric)$ per year -$ -$ -$ -$ -$ REFERENCE: Cell D34 Renewable O&M (Electric)$ per year 28,000$ 28,000$ 28,000$ 28,000$ 28,000$ Entered Value Renewable Electric Other costs $ per year Entered Value Renewable Fuel Use Quantity (Biomass)green tons Entered Value Renewable Fuel Cost $ per unit CALCULATION Total Renewable Fuel Cost (Electric)$ per year -$ -$ -$ -$ -$ Proposed Generation Cost (Electric)$ per year 28,000$ 28,000$ 28,000$ 28,000$ 28,000$ REFERENCE: Cell D32 Displaced Fossil Fuel Generation kWh per year 276,413 276,413 276,413 276,413 276,413 REFERENCE: Worksheet 'Diesel Fuel Prices'Displaced Fuel Price $ per gallon 4.33$ 4.37$ 4.42$ 4.46$ 4.51$ Enter Value if Diesels are OFF Displaced Scheduled component replacement(s)$ per year -$ -$ -$ -$ -$ CALCULATION Displaced O&M $ per year -$ -$ -$ -$ -$ CALCULATION Displaced Fuel Use gallons per year 20,295 20,295 20,295 20,295 20,295 CALCULATION Displaced Fuel Cost $ per year 87,910$ 88,789$ 89,677$ 90,574$ 91,479$ CALCULATION Base Generation Displaced Cost $ per year 87,910$ 88,789$ 89,677$ 90,574$ 91,479$ Proposed Base Solar Energy Prospecting in Remote Alaska An Economic Analysis of Solar Photovoltaics in the Last Frontier State by Paul Schwabe, National Renewable Energy Laboratory U.S. Department of Energy | Office of Indian Energy 1000 Independence Ave. SW, Washington DC 20585 | 202-586-1272 energy.gov/indianenergy | indianenergy@hq.doe.gov Solar Energy Prospecting in Remote Alaska ii NOTICE This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States government or any agency thereof. Available electronically at SciTech Connect http:/www.osti.gov/scitech Available for a processing fee to U.S. Department of Energy and its contractors, in paper, from: U.S. Department of Energy Office of Scientific and Technical Information P.O. Box 62 Oak Ridge, TN 37831-0062 OSTI http://www.osti.gov Phone: 865.576.8401 Fax: 865.576.5728 Email: reports@osti.gov Available for sale to the public, in paper, from: U.S. Department of Commerce National Technical Information Service 5301 Shawnee Road Alexandra, VA 22312 NTIS http://www.ntis.gov Phone: 800.553.6847 or 703.605.6000 Fax: 703.605.6900 Email: orders@ntis.gov energy.gov/indianenergy | indianenergy@hq.doe.gov DOE/IE-0040 • February 2016 Cover photo from Alamy EPC220. Credit to Design Pics Inc / Alamy Stock Photo. Solar Energy Prospecting in Remote Alaska iii Acknowledgements This work is made possible through support from the U.S. Department of Energy’s Office of Indian Energy Policy and Programs. The author would like to thank Christopher Deschene, Givey Kochanowski and Douglas Maccourt for their support of this work. The author would also like to thank the following reviewers for their insightful review comments: Robert Bensin of Bering Straits Development Company; Brian Hirsch of Deerstone Consulting; David Lockard of Alaska Energy Authority; Ingemar Mathiasson of Northwest Arctic Borough; David Pelunis-Messier of Tanana Chiefs Conference; and Erin Whitney of Alaska Center for Energy and Power. The author also wishes to thank Elizabeth Doris, Sherry Stout, and Jared Temanson of the National Renewable Energy Laboratory (NREL) for their strategic guidance throughout this effort as well as Jeffrey Logan and David Mooney, of NREL, for their insightful review of the document. The author is grateful for the technical editing of Heidi Blakley, Karen Petersen, and Rachel Sullivan of NREL. Finally the author also wishes to thank Jared Wiedmeyer for assistance with development of the analytical model and Pilar Thomas for her guidance and support early in this work. The author is solely responsible for any remaining errors or omissions. Solar Energy Prospecting in Remote Alaska iv List of Acronyms AEA Alaska Energy Authority Btu British thermal unit kW kilowatt kWh kilowatt-hour LCOE levelized cost of energy m2 square meter MW megawatt NREL National Renewable Energy Laboratory O&M operations and maintenance PCE Power Cost Equalization PV photovoltaic W watt Solar Energy Prospecting in Remote Alaska v Table of Contents Introduction ..................................................................................................................................... 1 Analysis Description and Limitations ............................................................................................ 7 Analysis Limitations ........................................................................................................................ 8 Data Input Assumptions: Diesel Generation Costs, Solar Costs, and Solar Resource Estimates ............................................................................................................................... 11 Input Parameters for Diesel Generation Costs .......................................................................... 11 Input Parameters for Solar Electricity Generation ..................................................................... 13 Summary of Input Assumptions .................................................................................................. 17 Analysis Results ........................................................................................................................... 20 Conclusion ................................................................................................................................... 22 References ................................................................................................................................... 23 Appendix A. Model Overview and Description ........................................................................... 27 Appendix B. Levelized Cost of Energy Results ........................................................................... 28 Solar Energy Prospecting in Remote Alaska vi List of Figures Figure 1. Solar resource comparison of Alaska and Germany .................................................... 2 Figure 2. Annual solar production percentage across four regions in Alaska by month ........... 3 Figure 3. Solar PV installations at water treatment facilities in the remote villages of Ambler, Shungnak, Deering, and Kobuk, Alaska ................................................................... 5 Figure 4. The seasonal sun paths of Kotzebue, Alaska, and Denver, Colorado .......................... Figure 5. Villages included in solar analysis ................................................................................. 7 Figure 6. PV Installations in Nome and Galena .............................................................................. Figure 7. Average wholesale diesel prices in $/gal for the 11 villages tested in 2013 and 2014 ............................................................................................................................... 12 Figure 8. Screenshot and callout of diesel fuel purchases in Anaktuvuk Pass, Alaska ......... 13 Figure 9. PVWatts solar resource estimate tool screenshot for Adak, Alaska ........................ 14 Figure 10. PVWatts solar resource estimate tool for a 100-kW PV system in Adak, Alaska .. 15 Figure 11. Indexed diesel and solar PV prices from 2002 to 2015 ............................................. Figure 12. Servicing a PV system in remote Alaska .................................................................. 17 Figure 13. Cost of electricity comparison between solar PV and diesel generation .............. 21 Figure 14. Schematic of LCOE model used in this analysis ..................................................... 27 List of Tables Table 1. Cost Estimates for a 100-kW PV System .................................................................... 17 Table 2. Annual Solar Energy Estimates .................................................................................... 18 Table 3. Wholesale Diesel Fuel Costs for Electricity Generation ............................................. 19 Table 4. Solar PV LCOE Modeling Results ................................................................................. 28 Solar Energy Prospecting in Remote Alaska 1 Introduction Exploitation and utilization of energy resources within the state of Alaska has predominantly and historically centered on its abundance of fossil-fuel deposits including oil, natural gas, and coal. Within the last decade, however, renewable energy technologies have been deployed across the state for both demonstration purposes and commercial ventures (REAP 2016). This diversification of energy sources has been driven from at least three primary factors: (1) the economic exposure of many Alaskan communities to oil price fluctuations and other petroleum market influences (2) technological advancements and reductions in the cost of renewable energy equipment, and (3) efforts to improve self-sufficiency for remote Alaskan communities. Due to these factors and more, renewable energy resources are increasingly being considered to meet Alaska’s energy needs (Foster et al. 2013). Renewable energy technologies used in Alaska have included small and large hydroelectric facilities, utility- scale and distributed wind generation, geothermal and air heat pumps, and woody biomass for electricity and heating (REAP 2016, CCHRC 2016). In addition to these endemic natural resources, a previously dismissed but pervasive form of renewable energy is also increasingly being analyzed and deployed in Alaska: solar electricity generated from photovoltaic (PV) panels. The lack of historical solar energy development in Alaska is due to a multitude of factors, but not surprisingly starts with one fundamental problem: minimal to no sunlight in the winter months, particularly for the northern latitudes. Of course, Alaska also experiences prolonged and sunlight rich summer days, but many of the biggest energy needs arise during the cold and dark months of winter. Despite this seemingly obvious barrier for solar electricity in Alaska, upon deeper examination there are several factors that may support the deployment of solar energy in particular locations across the state. First, Alaska is an immense state with a large geographic range along both the north-to-south and east-to-west directions. Many Alaskans will proudly and dryly note that if one was to hypothetically cut the state into two, Texas would be only the third largest state in the Union. This expansive and diverse geographic range means that there are significant differences in both the amount and seasonal variation of the solar resource across the state. Additionally many of the meteorological conditions experienced in certain regions of Alaska can actually be beneficial to solar energy production, including low ambient temperatures that improve the efficiency of solar modules and the reflectivity of sunlight off of snow cover on the ground. As shown in Figure 1, the solar resource (i.e., the amount of solar insolation received in kilowatt-hours (kWh)/square meters (m2)/day) in some regions of Alaska is at-least comparable to that of Germany, which leads the world in PV installations with more than 38,500 megawatts (MW) of solar installed as of October 2015 (Wirth 2015).1 1 To put 38,500 MW in perspective, with a population of roughly 80 million, Germany has installed approximately 480 watts (W) of PV per capita, or roughly two average-sized 250-W PV panels for every person in the country. Solar Energy Prospecting in Remote Alaska 2 Figure 1. Solar resource comparison of Alaska and Germany 2 Source: Billy J. Roberts, National Renewable Energy Laboratory (NREL) Second, both the expected monthly solar production and the seasonal load profile of communities can vary significantly across Alaska, meaning some communities may be better suited for solar production than others. Figure 2 shows the percentage of expected annual solar production by month across the Arctic, Interior, Southwest, and Southeast geographic regions of Alaska.3 The Arctic and Interior regions of Alaska could 2 This map was produced by NREL for the U.S. Department of Energy. Annual average solar resource data are for a solar collector oriented toward the south at tilt equal to local latitude. The data for Alaska is derived from a 40-km satellite and surface cloud cover database for the period of 1985 to 1991. The data for Germany was acquired from the Joint Research Centre of the European Commission and is the average yearly sum of global irradiation on an optimally inclined surface for the period of 1981 to 1990. 3 For comparison to Figure 1, each region’s specific solar insolation measure is also shown in the figure heading. Solar Energy Prospecting in Remote Alaska 3 expect high solar production predominantly from March through August, with a steep drop off in the shoulder months and little to no production in the winter. The Southeast and Southwest regions of Alaska show a more gradual transition of solar production levels from the sunlight rich spring and summer months to the shortening days of fall and winter. Although the electricity load peaks for many Alaska Native villages in the winter months when solar is minimally producing, these villages are also often running primarily on diesel- based generation during summer months for basic electricity needs such as lighting, refrigeration, cooking, and electronics when solar PV energy could offset fossil-fuel consumption. Furthermore, despite the cold and dark winters in Alaska that result in high energy demands, some Alaska communities have summer-peaking energy demands primarily because of commercial fishing activities and higher seasonal populations in the summer, which is generally compatible with solar availability.4 Figure 2. Annual solar production percentage across four regions in Alaska by month Source: NREL 2015 Lastly, and perhaps most significantly, Alaska has more than 175 remote village populations that rely almost exclusively on diesel fuel for electricity generation and heating oil for heat (Goldsmith 2008, AEA 2014a). Although oil is extracted in the North Slope of Alaska, the in-state production does not result in a below 4 Additionally, Sidebar 1 compares the path of the sun in the village of Kotzebue, Alaska to Denver, Colorado, to illustrate solar production in the Arctic region with a reference point in the contiguous 48 states. 0% 4% 15% 17%17% 14%15% 10% 5% 3%0%0% J F M A M J J A S O N D Arctic Alaska Annual Solar Production Percentage by Month (2.3 kWh/m2/day) 1%2% 11% 12% 14%14%15% 13% 7%7% 2%1% J F M A M J J A S O N D Interior Alaska Annual Solar Production Percentage by Month (3.4 kWh/m2/day) 3% 9% 13%14% 12% 11%10% 8%7% 6% 4% 3% J F M A M J J A S O N D Southwest Alaska Annual Solar Production Percentage by Month (3.1 kWh/m2/day) 3% 5% 11% 14%15% 9% 14% 10% 8% 5%5% 2% J F M A M J J A S O N D Southeast Alaska Annual Solar Production Percentage by Month (3.1 kWh/m2/day) Solar Energy Prospecting in Remote Alaska 4 market price for oil within the state. Chris Rose, Renewable Energy Alaska Project Executive Director notes, “We [Alaskans] pay the world commodity oil price. We’ve never received some sort of ‘hometown’ discount for oil.” (Gerdes 2015). Unprocessed crude oil extracted within the state is transported via the TransAlaska pipeline from the North Slope to refineries in the Interior and South-Central regions of Alaska and then delivered locally as diesel and gasoline to rural communities a few times per year. Most fuel deliveries to remote communities are made via barge, ice road, or air transport, which also contributes to the high local prices for diesel and gasoline.5 The local markup to retail pricing also adds to the “all-in” prices for fuel in rural villages. Due to these and other factors, electricity generated by diesel fuel in some rural communities can be $1.00/kilowatt-hour (kWh) or more, which is more than 8 times the national average of $0.12/kWh (AEA 2014a, EIA 2014). As described later in this report, the State of Alaska has enacted various programs for both renewable and diesel energy sources to help reduce the energy costs in rural Alaska, but many of these programs are limited to certain sectors, or are increasingly under scrutiny with the budget difficulties being experienced by the state (AEA 2016a, AEA 2016b, Johnson 2015). For these reasons and more, alternative forms of electricity generation including solar PV are increasingly being pursued in remote Alaska communities (see Figure 3 for examples of solar PV recently installed in the Northwest Arctic Borough). This analysis provides a high-level examination of the potential economics of solar energy in rural Alaska across a geographically diverse sample of remote villages throughout the state. It analyzes at a high level what combination of diesel fuel prices, solar resource quality, and PV system costs could lead to an economically competitive moderate-scale PV installation at a remote village. The goal of this analysis is to provide a baseline economic assessment to highlight the possible economic opportunities for solar PV in rural Alaska for both the public and private sectors. 5 The cost of transportation is even more pronounced in regions that require regular fuel deliveries via air shipments, if for example, barge or ice road transport is unavailable due to freezing, thawing, low runoff, high silting, or other conditions. Solar Energy Prospecting in Remote Alaska 5 Figure 3. Solar PV installations at water treatment facilities in the remote villages of Ambler, Shungnak, Deering, and Kobuk, Alaska 6 Source: Mathiasson 2015b, Northwest Arctic Borough 6 Clockwise from top left, the 8.4-kW Ambler array uses a pole-mounted array design and the 7.5-kW Shungnak installation utilizes a roof-mounted design with 90° directional offsets. The 11.55-kW and 7.38-kW design in Deering and Kobuk respectively incorporate a 180° circular system design that wraps around the east, south, and west facing walls of water treatment towers. These designs are utilized to even out the daily solar production profile (compared to systems installed facing just to the south) which can ease integration with existing diesel generators. Solar Energy Prospecting in Remote Alaska 6 Sidebar 1. Seasonal Sun Path in Kotzebue, Alaska, Compared to Denver, Colorado The state of Alaska is well known for its long summer days and prolonged winter nights. Given the immense size of the state from the Northern to Southern latitudes, however, there is a wide range of expected daylight hours throughout the state. For example, on the shortest day of the year the capital city of Juneau located in the South can expect 6 hours, 22 minutes of daylight while the Northern city of Barrow is in the midst of 67 straight days of total winter darkness (Alaska.org 2015). To highlight the seasonal sun path variations of one region of Alaska compared to a representative point in the contiguous 48 United States (lower 48 states), Figure 4 below shows the sun’s path for Kotzebue, Alaska, located in the Northwest Arctic Borough, compared to Denver, Colorado, which is an approximate latitudinal mid-point of the lower 48 states. This figure shows both the spring and fall equinoxes when the total length of day and night are equal across the globe and the summer and winter solstices when the longest and shortest days of the year occur. The path of the sun’s altitude for Kotzebue illustrates how the sun never falls completely below the horizon on the summer solstice, while on the winter solstice, it never quite rises above. The shape of the sun’s path for Kotzebue also illustrates a flatter and more gradual curve compared to the relatively steep curve for Denver. While solar electricity production in Kotzebue would be minimal during the winter months, the long summer days would provide a period of extended production. The spring and fall months would also produce a moderate amount of solar electricity and benefit from low ambient temperatures and increased production from sunlight reflected off of snow cover on the ground. Figure 4. The seasonal sun paths of Kotzebue, Alaska, and Denver, Colorado Source: Suncalc 2015 with visual concept adapted from Time and Date 2015 Solar Energy Prospecting in Remote Alaska 7 Analysis Description and Limitations This analysis examines the economics of solar electricity at a sampling of 11 remote villages across the state. The villages were selected to represent major geographical regions across the state including the Arctic Slope, the Interior, the Southwest, the Southeast, and the Aleutian Islands. In general, these regional variations were selected to capture the variations in meteorological conditions across the state, different delivery options, and possible ranges in diesel fuel prices. All of the villages are off of Alaska’s road system. The villages included in this analysis include Adak, Ambler, Anaktuvuk Pass, Hughes, Kasigluk, Shungnak, St. Paul, Tenakee Springs, Venetie, Yakutat, and Wainwright. Figure 5 shows the location of each of the 11 villages across the state and their estimated solar insolation. Figure 5. Villages included in solar analysis 7 Source: Billy J. Roberts, NREL 7 This map was produced by NREL for the U.S. Department of Energy. Annual average solar resource data are for a solar collector oriented toward the south at tilt equal to local latitude. The data is derived from a 40-km satellite and surface cloud cover database for the period 1985–1991. Solar Energy Prospecting in Remote Alaska 8 The analysis uses the levelized cost of electricity (LCOE) as a metric to compare the costs of solar electricity to diesel fuel rates, reported in cents per kilowatt-hour. LCOE is a metric that takes the entire lifecycle expenditures of an energy technology including capital costs, transportation, operating, and fuel costs (zero for solar) discounted to the present term and divided by the expected annual energy production of the energy system. While there is not a single universally accepted definition or methodology to calculate LCOE, in its basic form LCOE is often used to compare the cost of different energy technologies that can have very different cost and generation profiles (i.e., capital intensive versus operational intensive, project life, fuel costs, etc.). A common criticism for LCOE is that it does not differentiate between energy sources that are generally considered non-variable such as diesel generation from variable energy sources such as wind or solar energy. Moreover, project-level feasibility and economic evaluations are not typically made with just one metric, but instead incorporate a variety of analytical criteria including LCOE, net present value, internal rate of return, payback period, and a benefit to cost ratio, among others. For these reasons and more, LCOE is a useful though not singular metric to compare the cost of solar to the fuel-only cost of diesel generation (EIA 2015).8 To conduct the analysis, a spreadsheet-based pro-forma tool was created to calculate the LCOE for solar PV systems. This model was based on a simplified version of NREL’s Cost of Renewable Energy Spreadsheet Tool that allows for basic LCOE evaluations and includes capital, operating, and financial costs, performance and inflation adjustments, as well federal, state, and local policy support schemes (NREL 2011). This model includes the ability to model the economically significant federal tax benefits given to solar energy technologies such as the 30% investment tax credit and accelerated depreciation. The model used in this analysis was tested and reviewed by two outside entities.9 See Appendix A for more information on the model used in this analysis. Analysis Limitations It is important to note that there are many factors that will impact both the technical and economic characteristics of solar electricity, which are beyond the scope of this initial analysis. From a technical standpoint, this analysis does not explicitly consider the impact of integrating high penetration levels of variable solar electricity with a baseload diesel generation system. Instead, this analysis makes a few simplifying assumptions on integrating solar and diesel generation: • First, the analysis assumes that a kilowatt-hour produced from solar electricity is able to offset a kilowatt-hour produced from diesel generation. This one-to-one offset may not always be achievable as diesel generators are often most fuel-efficient at a given power level and generation from PV could impact the generator’s power level and thus fuel efficiency. Moreover, because diesel generators provide both energy (i.e., kilowatt-hours of generation) as well as other grid services such as voltage and frequency regulation, this analysis assumes that some level of diesel generation will always be running for grid operations and is not attempting to model a “diesel-off” scenario. • Second, the analysis also assumes the PV system would be sized small enough relative to the existing diesel generator to not require extensive energy storage systems (i.e., batteries) to integrate the solar 8 See the Data Input Assumptions Section for why only the fuel-cost component of diesel fired generation is used in this analysis. 9 These entities include the original developers of the Cost of Renewable Energy Spreadsheet Tool at Sustainable Energy Advantage and researchers at the Institute of Social and Economic Research at University of Alaska Anchorage. Solar Energy Prospecting in Remote Alaska 9 and diesel generators.10 As shown previously in Figure 3, the Northwest Arctic Borough recently installed a series of PV arrays at water treatment plants in remote regional villages using PV system designs that smooths the daily solar generation profile and thus integrates more easily with the existing diesel generators. Furthermore, comparatively smaller integration upgrades such as advanced power electronics and controls installed at either the diesel powerhouse or at the PV system are assumed to be utilized and implicitly included into the all-in PV system price. As an example, a 2014 study conducted by the Alaska Center for Energy and Power found that a remote Alaskan village with a peak load of about 1.1 MW could accommodate a 135-kW PV system with no control system upgrades, and a 205-kW PV system with some control system upgrades (Mueller-Stoffels 2014).11 Conversely, whole system upgrades, or a new, but smaller diesel generator is not assumed to be included in the all-in PV system price. From an economic standpoint, this analysis also does not attempt to examine the interplay of state-derived financial relief of diesel fuel purchases by remote villages through its Power Cost Equalization (PCE) program. Instead it makes a simplifying assumption that PV would be targeted at installations not eligible for PCE such as commercial businesses, schools, or state or federal buildings.12 Although the simplifying assumptions incorporated here are useful for the purposes of this high-level investigation, more research is required in order to further refine the analysis and provide project-specific economic feasibility. 10 Existing research has attempted to quantity what levels of PV integration would require extensive integration costs for a single village, though more investigation is required for broader applicability (Jensen et al. 2013, Mueller-Stoffels 2015). 11 The range of installed costs for the PV systems described in the Data Inputs Assumptions Section is likely sufficiently wide enough to include at least one case where the control upgrades are included in the PV system pricing. 12 See Sidebar 2 for more information on the Power Cost Equalization program. Solar Energy Prospecting in Remote Alaska 10 Sidebar 2. Power Cost Equalization and Renewable Energy In Alaska, a long-standing state policy program known as Power Cost Equalization attempts to equalize electricity costs between high-cost rural communities with comparatively cheaper urban population centers connected by the rail and road system from Fairbanks in the Interior through Anchorage to Homer in the South- Central region (known as the “Railbelt”) and Juneau in the Southeast. The PCE program provides significant financial relief to many of the rural communities throughout Alaska, in particular those not on the rail or road system, by using a state endowment fund to subsidize rural electricity rates to be in-line with rates experienced in the Railbelt and Southeast Regions. Although several components contribute to the PCE rate amount, a sizable portion of it is determined from the cost of diesel fuel used to generate electricity in eligible remote Alaskan communities (AEA 2014b). In this sense the PCE has been suggested by some as a financial disincentive for rural Alaskan communities to reduce their diesel dependency as doing so can also reduce the amount of PCE financial support (Hirsch 2015, Fay et al. 2012). Others note that the impacts from a renewable energy installation on PCE payments can be more pronounced on certain customer classes than others and a more nuanced assessment is appropriate (Drolet 2014). In any case, the current PCE structure has unquestionably led to a debate around if, how, and to what extent the economic value of renewable energy— principally the ability offset diesel fuel costs—is restricted by the PCE. As mentioned above, this analysis does not dive into the complex assessment of determining the net impact of renewable energy to diesel savings to PCE subsidies at the village level. Instead it makes a simplifying assumption that under the current PCE structure, the solar installation is logically targeted at a facility not currently eligible for PCE. These non-PCE eligible facilities include schools, local businesses such as a village or Native corporation, or state and federal facilities (AEA 2014b). An early example of this type of installation is the 16.8-kW system installed at Bering Straits Native Corporation in Nome in 2008, shown on the left in Figure 6 (AEA 2016c). Another example is the 6.7-kW PV project (originally installed in 2012 and expanded to more than 10 kW in 2015) developed on the school in Galena, Alaska, shown on the right in Figure 6 (Galena 2012, Pelunis-Messier 2015). Given that schools are among the largest energy users at many remote village communities, schools seem like an especially likely candidate for solar PV installations without impacting PCE as it is currently structured. Figure 6. PV Installations in Nome and Galena Source: AEA 2016c and Pelunis-Messier 2015 Solar Energy Prospecting in Remote Alaska 11 Data Input Assumptions: Diesel Generation Costs, Solar Costs, and Solar Resource Estimates This section briefly describes each of the data sources used for this analysis and presents the range of input cost parameters tested. Input Parameters for Diesel Generation Costs For diesel-based generation, this analysis focuses principally on the costs attributed to purchasing and transporting the diesel fuel used to run the village’s electricity generators (i.e., “fuel costs”). Other fixed costs (i.e., “non-fuel costs”) also contribute to the overall electricity prices; however, because these non-fuel costs would likely not be offset by adding solar generation, they are ignored for purposes of this analysis.13 Examples of non-fuel costs excluded from this analysis are the capital and operations and maintenance (O&M) costs for a diesel generator and a utility’s administrative charges. The costs for wholesale diesel fuel prices in remote Alaskan villages are comprehensively reported by the Alaska Energy Authority (AEA) in their annual report “Power Cost Equalization Program Statistical Data by Community” for the years 2013 and 2014 (AEA 2014a, AEA 2015).14 Utility purchases of diesel fuel for electricity generation at remote villages are typically made at wholesale rather than retail rates. The 11 villages included in this analysis present a wide range of wholesale diesel fuel costs. For example, wholesale diesel fuel prices range from a low of $3.95/gallon (gal) in Wainwright up to $6.90/gal in Ambler in 2014. Figure 7 shows the diesel fuel prices distribution for the years 2013 and 2014 for each of the 11 villages tested (AEA 2014a, AEA 2015).15 There was no consistent trend for fuel prices across the 11 villages from 2013 to 2014. Some village’s diesel fuel prices stayed relatively flat or even decreased while others increased substantially. This price variation could be due to several factors including oil commodity price fluctuations throughout the course of the year, fuel purchase prices that may or may not have been locked-in a year or more in advance, cost factors from logistical and transportation challenges from one year to the next,16 or simple reporting errors.17 Given these cost fluctuations from year to year, this analysis uses the reported diesel price points for a village as illustrative rather than precise. 13 See the Analysis Description and Limitations Section for a discussion on the costs associated with integrating the diesel and solar systems. 14 The reporting period for this report is through the end of June in the preceding year. Prices are shown in nominal dollars. 15 The years 2013 and 2014 were included in the analysis as these were the only years that a comprehensive data source with a consistently applied methodology was available. Note that the 2015 version of the AEA Power Cost Equalization Program Statistical Data by Community report was released in February 2016, shortly before the publication of this report (AEA 2016d). The analysis in this report does not incorporate the AEA 2015 data. 16 Ambler and Shungnak, for example, receive fuel shipments via barge in some years and through air transport in others. 17 Note, for example, that several reviewers suspected that a few of the outlying statistics presented in AEA 2014a and AEA 2015 were likely due to imperfect reporting or other data errors (particularly for Hughes in 2013) but generally acknowledged that these data reports are among the best available sources at this time. Solar Energy Prospecting in Remote Alaska 12 Figure 7. Average wholesale diesel prices in $/gal for the 11 villages tested in 2013 and 2014 Source: AEA 2014a and AEA 2015 Although the most familiar reporting term for diesel fuel prices is in dollars per gallon, in the context of electricity generation a different cost metric is used here. AEA reports the “fuel cost per kilowatt-hour sold” ($/kWh) metric for any village that receives energy price support through the PCE program. Figure 8 shows a screenshot and callout of the fuel cost per kWh data reported for the village of Anaktuvuk Pass in the AEA report (AEA 2015). For this analysis, the fuel cost per kWh sold metric is compared to the calculated solar LCOE. Note that the terms “diesel costs”, “diesel electricity costs”, or “diesel fuel costs” are used interchangeably in this narrative to represent the “fuel costs per kWh sold” metric. $4.88 $4.96 $4.20 $6.90 $5.94 $6.83 $6.17 $5.92 $4.18 $3.91 $5.10 $6.84 $4.84 $4.77$4.78 $4.61 $5.59 $5.51 $3.95 $4.31$4.36 $4.08 2013 2014 Wainwright Kasigluk Ambler Yakutat Tenakee SpringsSt. Paul Adak Shungnak Venetie Anaktuvuk Pass Hughes Solar Energy Prospecting in Remote Alaska 13 Figure 8. Screenshot and callout of diesel fuel purchases in Anaktuvuk Pass, Alaska Source: AEA 2015 Input Parameters for Solar Electricity Generation There are three primary data inputs used to estimate the solar LCOE: (1) the all-in installation costs for a solar PV system, (2) the ongoing O&M costs for the PV system, and (3) solar resource estimates to determine the amount of electricity produced at a given location. The input parameters for the solar resource estimates are described first followed by the solar cost estimates (both installation and O&M). This analysis uses PVWatts to simulate solar electricity production at a given village under study (NREL 2015). PVWatts utilizes the NREL National Solar Radiation database and combines solar radiation data with weather data for the years 1991–2010 to estimate a PV system’s electricity production. For this analysis, the closest available meteorological data was used to determine the electricity production at each of the 11 villages.18 Figure 9 shows a PVWatts screenshot of the village of Adak, which had data available for that exact location. 18 Five of the eleven villages had weather and solar resource data available in PVWatts. The remaining six villages were based on data from the nearest available data collection site, which ranged from 24 to 117 miles from the village under analysis. Solar Energy Prospecting in Remote Alaska 14 Figure 9. PVWatts solar resource estimate tool screenshot for Adak, Alaska Source: NREL 2015 After selecting the exact or nearest location, PVWatts requires a few basic assumptions about the PV system to estimate the solar electricity production at a given site. These assumptions include system size, module type (standard or premium), mounting type (roof versus ground mounted), expected losses,19 orientation, and others. For this analysis, a 100-kW system size was assumed with an open rack-mounting system common for ground-mounted systems. Figure 10 shows a screenshot of the estimated annual kilowatt-hour production for a 100-kW PV system in Adak, Alaska (67,949 kWh per year). To estimate the solar production for a 100-kW system at all 11 villages, the process shown in Figures 8, 9, and 10 was simply repeated for each of the villages.20 19 Importantly, this analysis assumes a 5% loss factor due to snow accumulation. Snow accumulation has both positive and negative impact on a PV system’s electricity production. Snow cover on the PV panels themselves dramatically reduces the system’s ability to generate electricity. However, snow coverage on the ground can actually increase a PV system’s production through enhanced reflectivity or albedo. This analysis assumes efficient removal of snow from the panels themselves due to the easy access that ground- mounted systems provide and the steep tilt of PV panels at northern latitudes. More research is required to refine this assumption. 20 Note that in the model used in this analysis, both the installed and O&M costs of the system as well as estimated energy production scale proportionally with the size of the PV system. Therefore the PV system’s size does not directly impact the LCOE results. To illustrate, a 50-kW system would cost 50% of a 100-kW system, but correspondingly only produce half of the energy. Thus, a 50-kW, 100-kW, or any other sized system would return the same modeled LCOE. In reality, however, we would expect to see slight variations in the actual pricing due to economies of scale and other non-scaling cost and production factors. Solar Energy Prospecting in Remote Alaska 15 Figure 10. PVWatts solar resource estimate tool for a 100-kW PV system in Adak, Alaska Source: NREL 2015 The solar system PV cost estimates used in this analysis are based on approximate multiples of PV pricing reported in the lower 48. Lawrence Berkeley National Laboratory reports a 100-kW commercial-scale PV system at a median price point of approximately $3.40/watt (W) in the first half of 2015 (Barbose et al. 2015). As prices continued to fall in the second half of 2015 and 2016, this analysis assumes a flat $3/W pricing as the lower 48 base level price, which is then increased to account for higher costs for nearly all goods and services in remote Alaskan communities. This analysis multiplies the lower 48 base level price by 2, 3, or 4 times to get a range of estimates for remote village pricing. These multiples correspond to $6/W, $9/W, and $12/W for low-cost, base-case, and high-cost cases respectively. There is some limited evidence of PV installed pricing at both the low and high end of the range presented in Table 1. For example, Pelunis-Messier 2014 reports PV installed at approximately $5/W, Mathiasson 2015a indicates that ten small sized PV projects ranged in pricing from nearly $6/W to over $11/W, and Irwin 2013 cites a 2013 installation at nearly $11/W. Given this wide variation in pricing, this analysis uses a range of possible Alaskan village PV costs rather than a single point estimate as there is significant uncertainty in both the low and high end of the installed PV price ranges in the remote village locations. The O&M costs are treated in a similar fashion. Assuming a lower 48 cost of $20/kW per year for O&M expenditures, the low-cost, base-case, and high-cost cases for remote Alaskan villages is estimated at $40/kW/year, $60/kW/year, and $80/kW/year respectively. Solar Energy Prospecting in Remote Alaska 16 Sidebar 3. Cost Trajectories of Diesel Fuel and Solar PV Figure 11 below illustrates the cost trajectories of wholesale diesel fuel rates compared to the installed price of solar PV (based on commercial sector pricing from the lower 48) from 2002 through mid-year 2015 (EIA 2016a, Barbose et al. 2015). This chart indexes diesel fuel and solar PV prices in $/gal and $/W respectively, to a base value of 100 in 2002. Figure 11 highlights the percentage change based on real dollars over time. Several trends are apparent in Figure 11. The cost of diesel fuel has been rising steadily since 2002 with two noticeably steep price declines in 2008 and 2014. Diesel fuel prices quickly recovered in 2009, but as of November 2015 remain at their lowest price point since 2003. Even at the low historic pricing levels, the indexed value of diesel fuel costs rose by more than 50% from a base value of 100 in 2002 to 153 in late 2015. Solar PV pricing has shown a steady cost decline in every year since 2002 from a base index value of 100 in 2002 to 32 in 2015 – a reduction of over 67%. Given this cost comparison over time, several factors contribute to an improving relative economic case over time for solar PV. First, solar PV price declines exhibited both predictability and an overall declining cost path. Conversely, diesel prices have been more volatile and have shown an overall increase from 2002 to 2015. Unpredictability in diesel fuel costs makes long-term village electricity cost projections difficult to manage. As a repercussion, some villages have locked in future diesel fuel purchases at a previous year’s pricing and therefore are not paying current market rates (both on a premium or a discount). Moreover, even while diesel fuel prices are currently lower than any time since 2003, there are other ramifications of the low commodity price. Perhaps most noteworthy is that Alaska’s state budget has been drastically reduced from the low price of oil. This means that many state funded programs could be at risk in the current budget environment, including ones targeted at rural communities such as PCE (Johnson 2015 and Forgey 2015). Moreover, as described later, several sources are predicting a rise in diesel rates as soon as mid- year 2016 (EIA 2016b). Solar PV can therefore offer a pricing hedge against the volatile nature of diesel fuel prices and potential changes to PCE that could impact remote communities. Figure 11. Indexed diesel and solar PV prices from 2002 to 2015 Source: EIA 2016a and Barbose et al. 2015. Diesel and solar PV pricing data underlying the index values use 2014 real dollars. Note that this comparison does not normalize for energy content. For comparison, a gallon of diesel has approximately 128,488 British thermal units (Btu) while 1 kWh of electricity has approximately 3,414 Btu (AFDC 2014). 153 32 0 50 100 150 200 250 300 350 400 '02 '03 '04 '05 '06 '07 '08 '09 '10 '11 '12 '13 '14 '15 Diesel Solar PV Solar Energy Prospecting in Remote Alaska 17 Summary of Input Assumptions Table 1 presents the solar capital and O&M cost estimates for a low-, base-, and high-cost scenario. Figure 12 visually captures the at-times difficult conditions of installing and maintaining all types of equipment, including PV, in remote Alaska. The occasionally harsh conditions contribute in part to the uncertainty in costs of installing and maintaining different energy generation technologies in remote communities and thus, the wide ranges of input parameters used. Table 1. Cost Estimates for a 100-kW PV System Village Case Lower 48 Cost Multiple Capital Costs ($/W) O&M Costs ($/kW/yr) All Low Cost 2 X $6 $40 Base Case 3 X $9 $60 High Cost 4 X $12 $80 Figure 12. Servicing a PV system in remote Alaska Source: Bensin 2015 Solar Energy Prospecting in Remote Alaska 18 Table 2 shows the annual kilowatt-hour production for a 100-kW system installed across the 11 villages. The capacity factor is also shown for illustrative purposes.21 Table 2. Annual Solar Energy Estimates Annual Solar Energy Solar Capacity Factor Village (kWh) (%) Adak 67,979 7.8% Ambler 86,230 9.8% Anaktuvuk Pass 85,138 9.7% Hughes 90,456 10.3% Kasigluk 91,764 10.5% Shungnak 86,230 9.8% St. Paul 62,268 7.1% Tenakee Springs 88,547 10.1% Venetie 101,824 11.6% Wainwright 73,881 8.4% Yakutat 73,934 8.4% Source: NREL 2015 Table 3 summarizes the wholesale diesel fuel cost data gathered for the 11 villages in this analysis. Because diesel fuel is a world commodity with constantly changing prices, price data from both 2013 and 2014 are included in this analysis and represent the range of years in which the comprehensive and consistent data source is available.22 While the continued drop in oil and diesel fuel rates experienced in 2015 is not captured in AEA 2014a and AEA 2015, some analytical projections indicate that diesel commodity prices will begin to rise in mid-2016 (EIA 2016b). Future research could provide an update to the results presented here based the most current pricing data available for both diesel fuel and installed solar PV prices. 21 Capacity factor is a common metric reported for electrical generation, which is a ratio that compares the amount of actual electric generation produced in a year divided by its potential generation if it could operate at full capacity for the entire year. 22 Is it is also important to note that while the two metrics of fuel costs, $/gal and $/kWh, track one another fairly well, they are not perfectly correlated from one year to the next nor village to another. This is because fuel costs in $/kWh calculations are impacted by other factors such as changing diesel engine efficiency (particularly if a newer, more efficient generator is installed), electrical line losses, and other factors. It is also likely that simple data reporting inconsistencies from year to year influence how closely fuel costs in $/gal and $/kWh track one another. Solar Energy Prospecting in Remote Alaska 19 Table 3. Wholesale Diesel Fuel Costs for Electricity Generation 23 2013 Diesel Fuel Cost 2014 Diesel Fuel Costs Village ($/gal) ($/kWh) ($/gal) ($/kWh) Adak $4.96 $0.57 $4.96 $0.67 Ambler $4.27 $0.33 $6.90 $0.53 Anaktuvuk Pass $6.04 $0.47 $6.83 $0.55 Hughes 24 $6.27 $0.88 $5.92 $0.41 Kasigluk $4.25 $0.47 $3.91 $0.40 Shungnak $5.18 $0.65 $6.84 $0.87 St. Paul $4.92 $0.41 $4.77 $0.36 Tenakee Springs $4.86 $0.43 $4.61 $0.45 Venetie $5.68 $0.64 $5.51 $0.75 Wainwright $4.01 $0.34 $4.31 $0.35 Yakutat $4.43 $0.34 $4.08 $0.31 Source: AEA 2014a, AEA 2015 Finally, the utilization of federal tax benefits such as the 30% investment tax credit and accelerated depreciation benefit are assumed in this analysis. In the lower 48, nearly all PV projects of the scale considered here (small commercial at 100 kW) will utilize federal tax incentives for renewable energy as part of the project’s overall economic value. In the context of Alaska, however, this concept is still relatively nascent with little precedent, but is gaining attention as state-based dollars for grants (which generally reduce the inherent value of federal tax credits) are expected to diminish in the coming years following reduced oil revenue flowing into the state (Johnson 2015). The utilization of for-profit business ownership structures adapted to Alaska’s unique business climate will likely be a critical market requirement to expanding solar development in the state. 23 Diesel fuel price inputs shown in 2014 dollars. 24 As mentioned previously, a data reporting error for Hughes in 2013 likely contributes to the high cost shown for 2013 (AEA 2014a). This data outlier is excluded from the results and conclusion discussion. Solar Energy Prospecting in Remote Alaska 20 Analysis Results Figure 13 presents the LCOE results for solar PV under the low-cost, base-case, and high-cost scenarios across the 11 villages analyzed.25 The LCOE under each PV pricing scenario is shown as a different shade of blue. As an example, for the village of Venetie the low-cost scenario of $6/W results in an LCOE of just under 40 cents/kWh; the base-case scenario of $9/W results in an LCOE of approximately 60 cents/kWh; and the high-cost scenario of $12/W results in an LCOE of nearly 80 cents/kWh. Figure 13 also shows the diesel fuel costs per kilowatt-hour for each of the 11 villages in 2013 and 2014. Several interesting findings emerge from comparing the range of PV cost estimates ($6/W to $12/W) to the 2013 and 2014 fuel-only diesel electricity costs. First, a select number of villages experience diesel electricity generating costs high enough that they are approaching or nearly on par with the LCOE from even the highest PV cost scenarios. These cases include Venetie for both 2013 and 2014 and Shungnak based on reported 2014 diesel prices.26 Under these cases, achieving cost savings from a PV installation appears among the most likely scenarios as PV installation prices of $9/W or more could be cost competitive with the reported diesel electricity generating costs. PV pricing falling below $9/W would show a larger economic savings. Second, several other villages also show cases where diesel prices are still high enough that PV could potentially compete economically at the low-cost PV price scenario of $6/W. In addition to the high cost examples mentioned above, these villages include Ambler (2014), Shungnak (2013), Anaktuvak Pass (2014), Kasigluk (2013), and Adak (2014). In these examples, PV pricing at $6/W could be expected to result in economic savings when compared to the recent fuel expenditures. Third, many villages appear to show cases where the PV LCOE could be considered marginally or borderline cost competitive, even at the assumed $6/W pricing level and diesel prices reported in 2013 and 2014. In these cases, the solar PV to diesel fuel cost comparison is considered within the level of specificity of these modeling results, so a more detailed investigation could produce results with favorable solar PV economics. These situations include Kasigluk (2013), Hughes (2013), Tenakee Springs (2013, 2014), Anaktuvuk Pass (2013), and Adak (2013). Finally, there are a few cases where the diesel fuel prices in some villages are below even the lowest estimated PV LCOE, and a solar PV installation does not appear to be economically competitive at the pricing levels assumed in this analysis. These cases include the villages of Yakutat, Wainwright, and St. Paul. Importantly, and what is not captured in Figure 13, is the benefit of price predictability that solar PV can provide from zero fuel costs. As shown previously in Figure 7 and Sidebar 3, diesel fuel prices have experienced significant fluctuations from one year to the next and accurate price projections are difficult to make. Solar PV, by contrast, experiences the vast majority of its costs (with the exception of maintenance expenses) upfront and therefore offers a predictable energy price for the remainder of the system’s life—often 20 years or more. Additionally, because PV prices have historically been falling rapidly, a $6/W pricing point that is assumed as a low pricing scenario in the current analysis, could likely be reduced even further in the near future, particularly if the market for solar PV in Alaska begins to mature and efficiencies develop. 25 The full listing of LCOE results can also be found in Appendix B. Results are shown in cents per kWh rather than the equivalent $/kWh. Note that all results are presented in 2014 dollars. 26 The high diesel generation cost for the village of Hughes in 2013 appears as an outlier as significant diesel efficiency gains were reported in 2014 (AEA 2015). Solar Energy Prospecting in Remote Alaska 21 Figure 13. Cost of electricity comparison between solar PV and diesel generation 0 20 40 60 80 100 120 140 Cost of Electricty (cents/kWh) Solar Energy Prospecting in Remote Alaska 22 Conclusion This analysis compares the cost of installing and operating a moderately sized solar PV system to recent diesel fuel expenditures for electricity generation for several remote villages across Alaska. The high-level results indicate there are plausible scenarios in which PV can be economically competitive with diesel fuel prices at low PV penetration levels. In this analysis, the cases where PV appears economically competitive generally required a combination of (1) high diesel fuel prices (at least 40 cents/kWh), (2) relatively low, for Alaska, PV prices (approximately $6 to $9 per W installed), (3) relatively high, for Alaska, solar production levels (capacity factor of nearly 10% or higher), and (4) the ability to make use of economically valuable tax benefits provided by the federal government. Solar development is likely to be favorable for other Alaskan villages not considered in this analysis but that have a similar combination of characteristics. However, to advance this high-level analysis to more precise estimates and eventually a large increase in deployed solar projects in Alaska, a select number of potential barriers noted previously will require further research or business ingenuity to address. Some of these barriers include, but are not limited to, the following. • The integration of solar PV with a diesel generator is an ongoing area of study and demonstration. The simplifying integration assumptions, including seasonal variability, made in this analysis should be revised when better information is available. • Regulatory and business structures such as how to work with the current PCE formula and how to utilize the valuable federal tax incentives will need to be addressed by the stakeholders involved. • Further refinements in real-world installation and maintenance costs of large-scale PV systems in rural Alaska will provide more accurate inputs to the economic modeling. Despite each of the simplifying assumptions made here, this analysis suggests that solar PV—along with fuel and other electricity savings measures—can be economically competitive in many remote Alaskan villages and could have a number of benefits including reducing a village’s dependency on diesel fuel, improving electricity price predictability, providing local environmental benefits, and more. 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Gerdes, J. 2015. “The Triumph of Clean Energy,” Alaska Beyond. Alaska Energy Magazine, April 2015, accessed January 20, 2016, http://www.paradigmcg.com/digitaleditions/aam-0415/index.html. Goldsmith, S. 2008. Understanding Alaska’s Remote Rural Economy. UA Research Summary No. 10, January 2008, Institute for Social and Economic Research, University of Alaska Anchorage. Accessed January 20, 2016. http://www.iser.uaa.alaska.edu/Publications/researchsumm/UA_RS10.pdf. Hirsch, B. 2015. “A partial solution to rural Alaska energy challenges,” Alaska Dispatch News, October 24, 2015, accessed January 20, 2016, http://www.adn.com/article/20151024/partial-solution-rural-alaska-energy- challenges. Solar Energy Prospecting in Remote Alaska 25 Irwin, C. 2013. “Displacing Diesel May Prove Cost-Prohibitive in Rural Alaska,” Breaking Energy, August 1, 2013, accessed January 20, 2016, http://breakingenergy.com/2013/08/01/displacing-diesel-may-prove-cost- prohibitive-in-rural-alaska/. Jensen, R., Baca, M., Schenkman, B., and Brainard, J. 2013. Venetie, Alaska Energy Assessment. SAND2013- 6185. Sandia National Laboratories, Albuquerque, NM, July 29, 2013. Accessed January 20, 2016. http://prod.sandia.gov/techlib/access-control.cgi/2013/136185.pdf. Johnson, K. 2015. “As Oil Prices Fall, Alaska’s New Governor Faces a Novel Goal, Frugality,” New York Times, January 25, 2015, accessed January 20, 2016, http://www.nytimes.com/2015/01/26/us/as-oil-falls- alaskas-new-chief-faces-a-novel-goal-frugality.html?_r=1. Mathiasson, I. 2015a. “2011 NAB Synergy Project.” 2015 Alaska Solar Energy Workshop, accessed January 20, 2016. http://acep.uaf.edu/media/131247/2015-SEW-Case-Studies-from-Around-the-State-Solar-PV-PCE- Calculations-Ingemar-Mathiasson.pdf. Mathiasson, I. 2015b. Northwest Arctic Borough, personal correspondence, December 7, 2015. Mueller-Stoffels, M. 2014. Adding PV Capacity: Initial Assessment and Recommendations for Galena, Alaska. Alaska Center for Energy and Power, University of Alaska Fairbanks. January 2014. Accessed January 20, 2016. http://acep.uaf.edu/media/82430/initialAssessmentReport-3.pdf. NREL. 2011. “CREST Cost of Energy Models,” Renewable Energy Project Finance, National Renewable Energy Laboratory, accessed January 20, 2016, https://financere.nrel.gov/finance/content/crest-cost-energy- models. NREL. 2013. “Renewable Energy In Alaska”. WH Pacific, Inc. National Renewable Energy Laboratory, accessed February 5, 2016. http://www.nrel.gov/docs/fy13osti/47176.pdf. NREL. 2015. “PVWatts Calculator,” National Renewable Energy Laboratory, accessed January 20, 2016, http://pvwatts.nrel.gov/. Pelunis-Messier, D. 2014. “Interior Alaska’s Solar Resource.” 2014 Rural Energy Conference, accessed January 20, 2016, http://www.akruralenergy.org/2014/Opportunities_for_Solar_PV_in_Alaska's_Interior- David_Pelunis-Messier.pdf. Pelunis-Messier, D. 2015. Personal correspondence, December 7, 2015. Renewable Energy Alaska Project (REAP). 2016. “Alaska’s Renewable Energy Projects,” accessed January 20, 2016, http://alaskarenewableenergy.org/why-renewable-energy-is-important/alaskas-renewable-energy- projects/. Suncalc. 2015. “Computation path of the sun for Kotzebue, Alaska, and Denver, Colorado,” accessed January 20, 2016, www.suncalc.org. Solar Energy Prospecting in Remote Alaska 26 Time and Date. 2015. “Today’s Sun Position,” Time and Date AS, accessed January 20, 2016, http://www.timeanddate.com/astronomy/usa/denver. Wirth, H. 2015. Recent Facts about Photovoltaics in Germany. Fraunhofer ISE, Freiburg, Germany, December 25, 2015. Accessed January 20, 2015. https://www.ise.fraunhofer.de/en/publications/veroeffentlichungen-pdf-dateien-en/studien-und- konzeptpapiere/recent-facts-about-photovoltaics-in-germany.pdf. Solar Energy Prospecting in Remote Alaska 27 Appendix A. Model Overview and Description The analysis utilized an NREL-developed cost-of-energy spreadsheet model intended to assist in the evaluation of the costs of an electricity generation system for a representative remote Alaskan town (model schematic depicted in Figure 14. The model calculates the cost of energy for three different types of load: Primary, Deferrable, and Thermal, based on inputs defining project installation (size, capital costs, etc.), financing, and operational costs and the ratios of each generation price and load type. Users can choose to run the model in one of three calculation modes: Target Internal Rate of Return, Target Payback Period, or Target Energy Cost, holding that variable constant and returning values for the other two variables along with debt metrics, fuel savings, and other costs. For this analysis, all revenue was assumed to be generated from the AC Primary Load, thus the inputs for the Deferrable Load and Thermal Load were set to zero. In addition to the inputs shown in Table 1 and Table 2, this analysis also assumed that the project was financed with 100% equity, generated an 8% Internal Rate of Return, and that both the LCOE and annual O&M expenditures increased by 1.5% annually. Figure 14. Schematic of LCOE model used in this analysis Solar Energy Prospecting in Remote Alaska 28 Appendix B. Levelized Cost of Energy Results Table 4 shows the solar PV LCOE for each of the 11 villages under analysis for the low-cost, base-case, and high -cost scenarios. Table 4. Solar PV LCOE Modeling Results Low-Cost Base-Case High-Cost Village (¢/kWh) (¢/kWh) (¢/kWh) Venetie $39.91 $59.44 $78.96 Kasigluk $44.29 $65.95 $87.62 Hughes $44.93 $66.91 $88.89 Tenakee Springs $45.90 $68.35 $90.80 Ambler $47.13 $70.19 $93.24 Shungnak $47.13 $70.19 $93.24 Anaktuvuk Pass $47.74 $71.09 $94.44 Yakutat $54.97 $81.86 $108.75 Wainwright $55.01 $81.92 $108.83 Adak $59.79 $89.03 $118.28 St. Paul $65.27 $97.20 $129.12 12/2/22, 3:18 PM PVWatts Calculator https://pvwatts.nrel.gov/pvwatts.php 1/2 Caution: Photovoltaic system performance predictions calculated by PVWatts® include many inherent assumptions and uncertainties and do not reflect variations between PV technologies nor site-specific characteristics except as represented by PVWatts® inputs. For example, PV modules with better performance are not differentiated within PVWatts® from lesser performing modules. Both NREL and private companies provide more sophisticated PV modeling tools (such as the System Advisor Model at https://sam.nrel.gov) that allow for more precise and complex modeling of PV systems. The expected range is based on 30 years of actual weather data at the given location and is intended to provide an indication of the variation you might see. For more information, please refer to this NREL report: The Error Report. Disclaimer: The PVWatts® Model ("Model") is provided by the National Renewable Energy Laboratory ("NREL"), which is operated by the Alliance for Sustainable Energy, LLC ("Alliance") for the U.S. Department Of Energy ("DOE") and may be used for any purpose whatsoever. The names DOE/NREL/ALLIANCE shall not be used in any representation, advertising, publicity or other manner whatsoever to endorse or promote any entity that adopts or uses the Model. DOE/NREL/ALLIANCE shall not provide any support, consulting, training or assistance of any kind with regard to the use of the Model or any updates, revisions or new versions of the Model. YOU AGREE TO INDEMNIFY DOE/NREL/ALLIANCE, AND ITS AFFILIATES, OFFICERS, AGENTS, AND EMPLOYEES AGAINST ANY CLAIM OR DEMAND, INCLUDING REASONABLE ATTORNEYS' FEES, RELATED TO YOUR USE, RELIANCE, OR ADOPTION OF THE MODEL FOR ANY PURPOSE WHATSOEVER. THE MODEL IS PROVIDED BY DOE/NREL/ALLIANCE 'AS IS' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY DISCLAIMED. IN NO EVENT SHALL DOE/NREL/ALLIANCE BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER, INCLUDING BUT NOT LIMITED TO CLAIMS ASSOCIATED WITH THE LOSS OF DATA OR PROFITS, WHICH MAY RESULT FROM ANY ACTION IN CONTRACT, NEGLIGENCE OR OTHER TORTIOUS CLAIM THAT ARISES OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THE MODEL. The energy output range is based on analysis of 30 years of historical weather data, and is intended to provide an indication of the possible interannual variability in generation for a Fixed (open rack) PV system at this location. 276,413 kWh/Year*RESULTS System output may range from 258,889 to 296,868 kWh per year near this location. Month Solar Radiation ( kWh / m2 / day ) AC Energy ( kWh ) January 0.77 5,782 February 1.78 13,019 March 3.54 28,954 April 4.88 36,201 May 5.61 42,160 June 5.41 38,224 July 4.93 35,224 August 4.09 29,799 September 3.09 22,387 October 1.71 13,159 November 0.91 6,722 December 0.68 4,780 Annual 3.12 276,411 Location and Station Identification Requested Location new stuyahok ak Weather Data Source Lat, Lng: 59.45, -157.3 0.5 mi Latitude 59.45° N Longitude 157.30° W PV System Specifications DC System Size 300 kW Module Type Premium Array Type Fixed (open rack) System Losses 14.08% Array Tilt 20° Array Azimuth 180° DC to AC Size Ratio 1.2 Inverter Efficiency 96% Ground Coverage Ratio 0.4% Albedo From weather file Bifacial Yes (0.7) Monthly Irradiance Loss Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec 0%0%0%0%0%0%0%0%0%0%0%0% Performance Metrics 12/2/22, 3:18 PM PVWatts Calculator https://pvwatts.nrel.gov/pvwatts.php 2/2 DC Capacity Factor 10.5% December 04, 2022 United States Department of the Interior FISH AND WILDLIFE SERVICE Anchorage Fish & Wildlife Field Office 4700 Blm Road Anchorage, AK 99507 Phone: (907) 271-2888 Fax: (907) 271-2786 In Reply Refer To: Project Code: 2023-0021301 Project Name: New Stuyahok Solar Energy and Battery Storage Project Subject:List of threatened and endangered species that may occur in your proposed project location or may be affected by your proposed project To Whom It May Concern: The enclosed species list identifies threatened, endangered, and proposed species, designated critical habitat, and some candidate species that may occur within the boundary of your proposed project and/or may be affected by your proposed project. The species list fulfills the requirements of the U.S. Fish and Wildlife Service (Service) under section 7(c) of the Endangered Species Act (Act) of 1973, as amended (16 U.S.C. 1531 et seq.). Please note that candidate species are not included on this list. We encourage you to visit the following website to learn more about candidate species in your area: http://www.fws.gov/alaska/fisheries/fieldoffice/anchorage/endangered/ candidate_conservation.htm New information based on updated surveys, changes in the abundance and distribution of species, changed habitat conditions, or other factors could change this list. Please feel free to contact us if you need more current information or assistance regarding the potential impacts to federally proposed, listed, and candidate species and federally designated and proposed critical habitat. Please note that under 50 CFR 402.12(e) of the regulations implementing section 7 of the Act, the accuracy of this species list should be verified after 90 days. This verification can be completed formally or informally as desired. The Service recommends that verification be completed by visiting the ECOS-IPaC website at regular intervals during project planning and implementation for updates to species lists and information. An updated list may be requested through the ECOS-IPaC system by completing the same process used to receive the enclosed list. Endangered Species: The purpose of the Act is to provide a means whereby threatened and endangered species and the ecosystems upon which they depend may be conserved. Under sections 7(a)(1) and 7(a)(2) of the Act and its implementing regulations (50 CFR 402 et seq.), Federal agencies are required to utilize their authorities to carry out programs for the conservation of threatened and endangered species and to determine whether projects may affect 12/04/2022   2    threatened and endangered species and/or designated critical habitat. A Biological Assessment is required for construction projects (or other undertakings having similar physical impacts) that are major Federal actions significantly affecting the quality of the human environment as defined in the National Environmental Policy Act (42 U.S.C. 4332(2) (c)). For projects other than major construction activities, the Service suggests that a biological evaluation similar to a Biological Assessment be prepared to determine whether the project may affect listed or proposed species and/or designated or proposed critical habitat. Recommended contents of a Biological Assessment are described at 50 CFR 402.12. If a Federal agency determines, based on the Biological Assessment or biological evaluation, that listed species and/or designated critical habitat may be affected by the proposed project, the agency is required to consult with the Service pursuant to 50 CFR 402. In addition, the Service recommends that candidate species, proposed species and proposed critical habitat be addressed within the consultation. More information on the regulations and procedures for section 7 consultation, including the role of permit or license applicants, can be found in the "Endangered Species Consultation Handbook" at: http://www.fws.gov/endangered/esa-library/pdf/TOC-GLOS.PDF Migratory Birds: In addition to responsibilities to protect threatened and endangered species under the Endangered Species Act (ESA), there are additional responsibilities under the Migratory Bird Treaty Act (MBTA) and the Bald and Golden Eagle Protection Act (BGEPA) to protect native birds from project-related impacts. Any activity, intentional or unintentional, resulting in take of migratory birds, including eagles, is prohibited unless otherwise permitted by the U.S. Fish and Wildlife Service (50 C.F.R. Sec. 10.12 and 16 U.S.C. Sec. 668(a)). For more information regarding these Acts see: https://www.fws.gov/birds/policies-and-regulations.php The MBTA has no provision for allowing take of migratory birds that may be unintentionally killed or injured by otherwise lawful activities. It is the responsibility of the project proponent to comply with these Acts by identifying potential impacts to migratory birds and eagles within applicable NEPA documents (when there is a Federal nexus) or a Bird/Eagle Conservation Plan (when there is no Federal nexus). Proponents should implement conservation measures to avoid or minimize the production of project-related stressors or minimize the exposure of birds and their resources to the project-related stressors. For more information on avian stressors and recommended conservation measures see: https://www.fws.gov/birds/bird-enthusiasts/threats-to-birds.php In addition to MBTA and BGEPA, Executive Order 13186: Responsibilities of Federal Agencies to Protect Migratory Birds, obligates all Federal agencies that engage in or authorize activities that might affect migratory birds, to minimize those effects and encourage conservation measures that will improve bird populations. Executive Order 13186 provides for the protection of both 12/04/2022   3    ▪ ▪ ▪ migratory birds and migratory bird habitat. For information regarding the implementation of Executive Order 13186, please visit https://www.fws.gov/birds/policies-and-regulations/ executive-orders/e0-13186.php. Please be aware that bald and golden eagles are protected under the Bald and Golden Eagle Protection Act (16 U.S.C. 668 et seq.), and projects affecting these species may require development of an eagle conservation plan (http://www.fws.gov/windenergy/ eagle_guidance.html). Additionally, wind energy projects should follow the wind energy guidelines (http://www.fws.gov/windenergy/) for minimizing impacts to migratory birds and bats. Guidance for minimizing impacts to migratory birds for projects including communications towers (e.g., cellular, digital television, radio, and emergency broadcast) can be found at: http://www.fws.gov/migratorybirds/CurrentBirdIssues/Hazards/towers/towers.htm http://www.towerkill.com http://www.fws.gov/migratorybirds/CurrentBirdIssues/Hazards/towers/comtow.html We appreciate your concern for threatened and endangered species. The Service encourages Federal agencies to include conservation of threatened and endangered species into their project planning to further the purposes of the Act. Please include the Consultation Tracking Number in the header of this letter with any request for consultation or correspondence about your project that you submit to our office. Attachment(s): Official Species List USFWS National Wildlife Refuges and Fish Hatcheries Migratory Birds 12/04/2022   1    Official Species List This list is provided pursuant to Section 7 of the Endangered Species Act, and fulfills the requirement for Federal agencies to "request of the Secretary of the Interior information whether any species which is listed or proposed to be listed may be present in the area of a proposed action". This species list is provided by: Anchorage Fish & Wildlife Field Office 4700 Blm Road Anchorage, AK 99507 (907) 271-2888 12/04/2022   2    Project Summary Project Code:2023-0021301 Project Name:New Stuyahok Solar Energy and Battery Storage Project Project Type:New Constr - Above Ground Project Description:new 300 kW solar array in New Stuyahok, Alaska Project Location: Approximate location of the project can be viewed in Google Maps: https:// www.google.com/maps/@59.448687699999994,-157.32709586592574,14z Counties:Dillingham County, Alaska 12/04/2022   3    1. Endangered Species Act Species There is a total of 0 threatened, endangered, or candidate species on this species list. Species on this list should be considered in an effects analysis for your project and could include species that exist in another geographic area. For example, certain fish may appear on the species list because a project could affect downstream species. IPaC does not display listed species or critical habitats under the sole jurisdiction of NOAA Fisheries , as USFWS does not have the authority to speak on behalf of NOAA and the Department of Commerce. See the "Critical habitats" section below for those critical habitats that lie wholly or partially within your project area under this office's jurisdiction. Please contact the designated FWS office if you have questions. NOAA Fisheries, also known as the National Marine Fisheries Service (NMFS), is an office of the National Oceanic and Atmospheric Administration within the Department of Commerce. Critical habitats THERE ARE NO CRITICAL HABITATS WITHIN YOUR PROJECT AREA UNDER THIS OFFICE'S JURISDICTION. 1 12/04/2022   1    USFWS National Wildlife Refuge Lands And Fish Hatcheries Any activity proposed on lands managed by the National Wildlife Refuge system must undergo a 'Compatibility Determination' conducted by the Refuge. Please contact the individual Refuges to discuss any questions or concerns. THERE ARE NO REFUGE LANDS OR FISH HATCHERIES WITHIN YOUR PROJECT AREA. 12/04/2022   1    1. 2. 3. Migratory Birds Certain birds are protected under the Migratory Bird Treaty Act and the Bald and Golden Eagle Protection Act . Any person or organization who plans or conducts activities that may result in impacts to migratory birds, eagles, and their habitats should follow appropriate regulations and consider implementing appropriate conservation measures, as described below. The Migratory Birds Treaty Act of 1918. The Bald and Golden Eagle Protection Act of 1940. 50 C.F.R. Sec. 10.12 and 16 U.S.C. Sec. 668(a) Migratory Birds FAQ Tell me more about conservation measures I can implement to avoid or minimize impacts to migratory birds. Nationwide Conservation Measures describes measures that can help avoid and minimize impacts to all birds at any location year round. Implementation of these measures is particularly important when birds are most likely to occur in the project area. When birds may be breeding in the area, identifying the locations of any active nests and avoiding their destruction is a very helpful impact minimization measure. To see when birds are most likely to occur and be breeding in your project area, view the Probability of Presence Summary. Additional measures or permits may be advisable depending on the type of activity you are conducting and the type of infrastructure or bird species present on your project site. What does IPaC use to generate the list of migratory birds that potentially occur in my specified location? The Migratory Bird Resource List is comprised of USFWS Birds of Conservation Concern (BCC) and other species that may warrant special attention in your project location. The migratory bird list generated for your project is derived from data provided by the Avian Knowledge Network (AKN). The AKN data is based on a growing collection of survey, banding, and citizen science datasets and is queried and filtered to return a list of those birds reported as occurring in the 10km grid cell(s) which your project intersects, and that have been identified as warranting special attention because they are a BCC species in that area, an eagle (Eagle Act requirements may apply), or a species that has a particular vulnerability to offshore activities or development. Again, the Migratory Bird Resource list includes only a subset of birds that may occur in your project area. It is not representative of all birds that may occur in your project area. To get a list of all birds potentially present in your project area, please visit the Rapid Avian Information Locator (RAIL) Tool. What does IPaC use to generate the probability of presence graphs for the migratory birds potentially occurring in my specified location? 1 2 12/04/2022   2    1. 2. 3. The probability of presence graphs associated with your migratory bird list are based on data provided by the Avian Knowledge Network (AKN). This data is derived from a growing collection of survey, banding, and citizen science datasets. Probability of presence data is continuously being updated as new and better information becomes available. To learn more about how the probability of presence graphs are produced and how to interpret them, go the Probability of Presence Summary and then click on the "Tell me about these graphs" link. How do I know if a bird is breeding, wintering or migrating in my area? To see what part of a particular bird's range your project area falls within (i.e. breeding, wintering, migrating or year-round), you may query your location using the RAIL Tool and look at the range maps provided for birds in your area at the bottom of the profiles provided for each bird in your results. If a bird on your migratory bird species list has a breeding season associated with it, if that bird does occur in your project area, there may be nests present at some point within the timeframe specified. If "Breeds elsewhere" is indicated, then the bird likely does not breed in your project area. What are the levels of concern for migratory birds? Migratory birds delivered through IPaC fall into the following distinct categories of concern: "BCC Rangewide" birds are Birds of Conservation Concern (BCC) that are of concern throughout their range anywhere within the USA (including Hawaii, the Pacific Islands, Puerto Rico, and the Virgin Islands); "BCC - BCR" birds are BCCs that are of concern only in particular Bird Conservation Regions (BCRs) in the continental USA; and "Non-BCC - Vulnerable" birds are not BCC species in your project area, but appear on your list either because of the Eagle Act requirements (for eagles) or (for non-eagles) potential susceptibilities in offshore areas from certain types of development or activities (e.g. offshore energy development or longline fishing). Although it is important to try to avoid and minimize impacts to all birds, efforts should be made, in particular, to avoid and minimize impacts to the birds on this list, especially eagles and BCC species of rangewide concern. For more information on conservation measures you can implement to help avoid and minimize migratory bird impacts and requirements for eagles, please see the FAQs for these topics. Details about birds that are potentially affected by offshore projects For additional details about the relative occurrence and abundance of both individual bird species and groups of bird species within your project area off the Atlantic Coast, please visit the Northeast Ocean Data Portal. The Portal also offers data and information about other taxa besides birds that may be helpful to you in your project review. Alternately, you may download the bird model results files underlying the portal maps through the NOAA NCCOS Integrative Statistical Modeling and Predictive Mapping of Marine Bird Distributions and Abundance on the Atlantic Outer Continental Shelf project webpage. 12/04/2022   3    Bird tracking data can also provide additional details about occurrence and habitat use throughout the year, including migration. Models relying on survey data may not include this information. For additional information on marine bird tracking data, see the Diving Bird Study and the nanotag studies or contact Caleb Spiegel or Pam Loring. What if I have eagles on my list? If your project has the potential to disturb or kill eagles, you may need to obtain a permit to avoid violating the Eagle Act should such impacts occur. Proper Interpretation and Use of Your Migratory Bird Report The migratory bird list generated is not a list of all birds in your project area, only a subset of birds of priority concern. To learn more about how your list is generated, and see options for identifying what other birds may be in your project area, please see the FAQ "What does IPaC use to generate the migratory birds potentially occurring in my specified location". Please be aware this report provides the "probability of presence" of birds within the 10 km grid cell(s) that overlap your project; not your exact project footprint. On the graphs provided, please also look carefully at the survey effort (indicated by the black vertical bar) and for the existence of the "no data" indicator (a red horizontal bar). A high survey effort is the key component. If the survey effort is high, then the probability of presence score can be viewed as more dependable. In contrast, a low survey effort bar or no data bar means a lack of data and, therefore, a lack of certainty about presence of the species. This list is not perfect; it is simply a starting point for identifying what birds of concern have the potential to be in your project area, when they might be there, and if they might be breeding (which means nests might be present). The list helps you know what to look for to confirm presence, and helps guide you in knowing when to implement conservation measures to avoid or minimize potential impacts from your project activities, should presence be confirmed. To learn more about conservation measures, visit the FAQ "Tell me about conservation measures I can implement to avoid or minimize impacts to migratory birds" at the bottom of your migratory bird trust resources page. 12/04/2022   4    IPaC User Contact Information Agency:Solstice Alaska Consulting, Inc Name:Robin Reich Address:2607 Fairbanks Street Address Line 2:Suite B City:Anchorage State:AK Zip:99503 Email robin@solsticeak.com Phone:9079295960 Upland (non-wetland) - 1.35 acres Mapping Area 1 AVEC Tank Farm/Dispensing Site Figure 3 Preliminary Jurisdictional Determination New Stuyahok 0 50 100 15025 Feet Map Notes. 1. Wetland and waterbody mapping based on aerial photograph interpreation. No fieldwork has been conducted to verify boundaries. 2. Boundaries were delineated on color orthorectified aerial photography taken on July 13, 2003 (nominal scale 1"=800’) Legend Note: No wetlands were identified in the mapped area shown above. Mapping Area Boundary Upland (non-wetland) - 5.39 acres Mapping Area 4 AVEC Proposed Power Plant Site Figure 6 Preliminary Jurisdictional Determination New Stuyahok 0 50 100 15025 Feet Map Notes. 1. Wetland and waterbody mapping based on aerial photograph interpreation. No fieldwork has been conducted to verify boundaries. 2. Boundaries were delineated on color orthorectified aerial photography taken on July 13, 2003 (nominal scale 1"=800’) Legend Note: No wetlands were identified in the mapped area shown above. Mapping Area Boundary Upland (non-wetland) - 15.26 acres Mapping Area 4 AVEC Proposed Wind Turbine Site Figure 6 Preliminary Jurisdictional Determination New Stuyahok 0 100 200 30050 Feet Map Notes. 1. Wetland and waterbody mapping based on aerial photograph interpreation. No fieldwork has been conducted to verify boundaries. 2. Boundaries were delineated on color orthorectified aerial photography taken on July 13, 2003 (nominal scale 1"=800’) Legend Note: No wetlands were identified in the mapped area shown above. Mapping Area Boundary DEe 2;4 2.008 ALASKA VILLAGE ELECTRIC COOPERATIVE,INC. December 17,2008 Judith Bittner,State Historic Preservation Officer Office of History and Archeology 550Westih Avenue,Suite 1310 Anchorage,Alaska 99501-3565 Subject:File nuniber 3130-4R AVEC-AVEC:Mekoryuk Wind Turbines Project and AVEC New Stuyahok Bulk Fuel Storage and Power System Upgrades Project Dear Ms.Bittner: Thank you for your December 9,2008 letters to Robin Reich of Solstice Environmental Consulting (Solstice) regarding the above mentioned Alaska Village Electric Cooperative (AVEC)projects.Included in this letter are responses to your requests stated in the letter and during a telephone conversation between Tracie Krauthoefer and Robin on December 16,2008 . .•.•"o-ardingthe federal agency fnnding,permitting,or licensing these projects:Planning funds for the ."rind project and the New Stuyahok bulk fuel storage project was obtained through the Denali -"-<>Jcoryukproject will require a U.S.Army Corps of Engineers wetlands permit Construction '.~~ently undetermined. ~sion:The contact person at the Denali Commission ~Jhe Denali Commission,510 L Street,Suite 410, ~-~~ber is 271-1415. -.•,r1th environmental .l.~National