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

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

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.

13 October 2026
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 13-14 October 2026 is our fourth PV CellTech conference dedicated to solar manufacturing in the USA. From polysilicon, wafers, ingots, cells and modules, to critical component suppliers including glass and frames, the event connects every stage of the value chain under one roof. PV CellTech USA also brings together investors, innovators, manufacturers and industry stakeholders to collaborate and strengthen domestic solar manufacturing across the United States.
2 February 2027
London, UK
Returning in 2027 for its 14th edition, Solar & Storage Finance Europe will bring together the brightest minds representing funds, banks, developers, utilities, government and industry across Europe and the UK on a programme that is solutions-focused from top to tail. The event is designed to enable leaders at the forefront of solar and storage investment and deployment in Europe to scale, learn and land themselves industry defining partnerships.

Read Next

September 4, 2026
Inox Solar Americas has signed a 767MW module supply agreement with a US renewable energy developer and independent power producer.
September 4, 2026
Germany and the wider EU can use its research and development strengths to stay competitive in the global solar PV manufacturing industry, according to a group of industry and research bodies.
September 4, 2026
News of two utility-scale solar PV developments in Texas, where construction began on a 347MW project in Wharton County and finances secured for a 310MW/250MWh pair of projects.
Premium
September 3, 2026
PV Tech Premium speaks to IEEFA's Jonathan Bruegel about how renewable PPAs have become a key part of European energy resilience.
September 3, 2026
In this week's PV Chart of the Week, we look at disparity between announced and operational cell and module manufacturing capacity in the US across PERC, TOPCon and HJT.
September 3, 2026
PERC, TOPCon or HJT? In the fourth of five articles this week, Moustafa Ramadan and Joe Hennessy of PV Tech Research examine emerging technology trends in US solar cell and module manufacturing.

Upcoming Events

Solar Media Events
October 13, 2026
San Francisco Bay Area, USA
Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
February 2, 2027
London, UK