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

September 16, 2024
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.

16 June 2026
Napa, USA
PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 16-17 June 2026, will be our fifth 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 2027 and beyond.

Read Next

December 10, 2025
The US SEIA has named board chair Darren Van’t Hof as interim president and CEO, to begin work 20 January 2026.
December 10, 2025
The global utility-scale solar PV sector has exceeded the threshold of 1TW of operating capacity, according to Wiki-Solar.
December 10, 2025
The US solar industry registered its third-best quarter with 11.7GW of new capacity installed in the third quarter of 2025.
December 10, 2025
The average price of several types of solar PV modules remained stable in Europe in November, according to sun.store.
December 9, 2025
Indian solar PV manufacturer Waaree Energies has signed a 288MWp solar module supply deal with US project developer Sabanci Renewables.
December 9, 2025
Equinor has started commercial operations at its first hybrid solar-plus-wind project in the Brazilian state of Bahia.

Upcoming Events

Upcoming Webinars
December 17, 2025
2pm GMT / 3pm CET
Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 24, 2026
Dallas, Texas
Solar Media Events
April 15, 2026
Milan, Italy
Solar Media Events
June 16, 2026
Napa, USA