US DOE provides US$72.8 million loan guarantee for Tribal solar-plus-storage project

Facebook
Twitter
LinkedIn
Reddit
Email
A solar project belonging to the Karuk Tribe in California.
The new project will consist of a 15MW solar project, with a co-located 70MWh battery energy storage system (BESS). Image: Office of Indian Energy Policy and Programs.

The US Department of Energy (DOE) has closed loan financing for a 15MW solar-plus-storage project to be built in California, on lands owned by the Viejas Group of Capitan Grande Band Mission Indians.

Indian Energy, a developer owned entirely by Native Americans, will develop the project for the band, which describes itself as a “sovereign government recognised by the US government”. The project will consist of a 15MW solar project, with a co-located 70MWh battery energy storage system (BESS), backed by a US$72.8 million loan guarantee provided by the DOE’s Loan Programs Office (LPO).

This article requires Premium SubscriptionBasic (FREE) Subscription

Unlock unlimited access for 12 whole months of distinctive global analysis

Photovoltaics International is now included.

  • Regular insight and analysis of the industry’s biggest developments
  • In-depth interviews with the industry’s leading figures
  • Unlimited digital access to the PV Tech Power journal catalogue
  • Unlimited digital access to the Photovoltaics International journal catalogue
  • Access to more than 1,000 technical papers
  • Discounts on Solar Media’s portfolio of events, in-person and virtual

Or continue reading this article for free

The money will be provided by a grant from the California Energy Commission and investments from US Bancorp Impact Finance and Starbucks and could total up to US$100 million.

“Amid surging energy demands, the Viejas Microgrid project is a win-win for the Viejas Band of Kumeyaay Indians and California’s clean energy goals,” said California senator Alex Padilla. “California Tribes deserve energy independence and security as they adapt to the climate crisis, and the Inflation Reduction Act (IRA) is making that priority a reality.”

While the DOE did not put a timeline on the project’s construction or commissioning, it noted that once the project is completed, members of the Viejas Band will purchase electricity generated at the project through a power purchase agreement (PPA) to “help operates various commercial businesses”. The investment is part of president Biden’s ‘Justice40’ initiative, which aims to deliver 40% of the “overall benefits” of federal investments, including those supported by the LPO, to “disadvantaged communities”, such as Native groups.

The DOE noted that across all of the LPO’s programmes, the department has received 211 applications for financing, totalling over US$295 billion.

The news follows advancements at other solar-plus-storage projects on Tribal land, including in the state of New Mexico. Such decentralised power generation and storage projects have emerged as an alternative means of supplying power as grid connectivity issues continue to plague the US, with figures from the Lawrence Berkeley National Laboratory (LBNL) suggesting that there was around 2.6TW of power generating capacity waiting for grid connections at the end of 2023.

17 June 2025
Napa, USA
PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 17-18 June 2025, will be our fourth PV ModulelTech conference dedicated to the U.S. utility scale solar sector. The event will gather the key stakeholders from solar developers, solar asset owners and investors, PV manufacturing, policy-making and and all interested downstream channels and third-party entities. The goal is simple: to map out the PV module supply channels to the U.S. out to 2026 and beyond.
7 October 2025
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 7-8 October 2025 is our third PV CellTech conference dedicated to the U.S. manufacturing sector. The events in 2023 and 2024 were a sell out success and 2025 will once again gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. The goal is simple: to map out PV manufacturing in the U.S. out to 2030 and beyond.
21 October 2025
New York, USA
Returning for its 12th edition, Solar and Storage Finance USA Summit remains the annual event where decision-makers at the forefront of solar and storage projects across the United States and capital converge. Featuring the most active solar and storage transactors, join us for a packed two-days of deal-making, learning and networking.
25 November 2025
Warsaw, Poland
Large Scale Solar Central and Eastern Europe continues to be the place to leverage a network that has been made over more than 10 years, to build critical partnerships to develop solar projects throughout the region.

Read Next

June 10, 2025
A group of Republican Congress members penned an open letter on Friday urging the US Senate to moderate proposed changes to renewable energy manufacturing and deployment support.
Premium
June 10, 2025
PV Tech Premium spoke with Geoffrey Lehv of kWh Analytics about cybersecurity, AI and solar project underperformance.
June 10, 2025
US residential solar companies Sunnova and Solar Mosaic have filed voluntary petitions for relief under Chapter 11 of the US Bankruptcy Code.
June 9, 2025
Solar manufacturer Qcells has launched a recycling arm, called EcoRecycle, and a recycling plant in the US state of Georgia.
June 9, 2025
Growing political headwinds threaten to dent US solar manufacturing and project deployment, despite a strong start to 2025.
June 9, 2025
US residential solar installer Sunnova has laid off more than half of its workforce, while a subsidiary from Delaware filed for Chapter 11 bankruptcy.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
June 17, 2025
Napa, USA
Upcoming Webinars
June 30, 2025
10am PST / 6pm BST
Solar Media Events
July 1, 2025
London, UK
Solar Media Events
July 1, 2025
London, UK
Solar Media Events
September 16, 2025
Athens, Greece