Pacific Gas & Electric Company (PG&E) signed a 15-year Long-Term Resource Adequacy Agreement for a 112.5-megawatt (MW) Sierra Pinta Energy Storage project in Yuma County, Arizona. 

The agreement was signed with Leeward Renewable Energy (LRE), a renewable energy company, to deploy power from Sierra Pinta, a standalone battery energy storage (BESS) facility that is adjacent to LRE’s upcoming 179-MW White Wing Ranch Solar project.

Sierra Pinta Energy Storage will have a storage capacity of 450 MWh of clean power that can be dispatched during peak load times to meet demand and will advance the energy and grid resiliency objectives of both states.

Construction of Sierra Pinta Energy Storage is expected to begin in September 2024, and the project is expected to be operational in the first half of 2025.

“We are proud to partner with PG&E on this transformative project, supporting the transition to a cleaner and more reliable grid while bringing significant tax benefits to the community,” said Eran Mahrer, LRE’s Chief Commercial Officer, in a statement. “Sierra Pinta Energy Storage expands our project footprint and further solidifies our commitment to the region. We look forward to continuing our long-term partnership with Yuma County and the local community as we develop and operate the project.”