San Francisco: Pacific Gas and Electric Company announced May 19 having requested approval of five energy storage projects totaling 423 megawatts, in a filing with the California Public Utilities Commission (CPUC).
PG&E has been authorized to procure at least 716.9 MW of system reliability resources to come online between August 1, 2021 and August 1, 2023. The five new battery energy storage projects announced today represent PG&E’s first phase of procuring system reliability resources that need to come online within that timeframe.
PG&E will issue another (phase two) competitive solicitation this summer for resources to come online by August 1, 2022 and August 1, 2023.
The five projects feature lithium-ion battery energy storage systems (BESS), each with a four-hour discharge duration. The new systems will either be co-located with solar or geothermal plants or be built as part of new energy storage projects. The five projects are as follows:
• Diablo Energy Storage, LLC – The Diablo Energy Storage Project comprises three separate 15-year agreements totaling 150 MW. The three projects will be stand-alone lithium ion battery energy storage resources located in Contra Costa County. This project is an expansion of a 50 MW energy storage project under contract to PG&E in Contra Costa County, which is currently in development
• Dynegy Marketing and Trade, LLC – The Vistra Energy MOSS100 Energy Storage Project is a 10-year agreement for 100 MW. The project is a stand‑alone lithium ion battery energy storage resource located in Moss Landing, Calif. (Monterey County). This project is an expansion of a 300 MW energy storage project under contract to PG&E at the same location, which is currently in development.
• Gateway Energy Storage, LLC – The Gateway Energy Storage project is a 15-year agreement for a 50 MW stand‑alone lithium ion battery energy storage resource located in San Diego.
• NextEra Energy Resources Development, LLC – The Blythe Energy Storage 110 project is a 15-year agreement for 63 MW. The project is a lithium ion battery energy storage resource and is co-located with an existing 110 MW solar project built in 2016 located in Blythe, Calif. (Riverside County).
• Coso Battery Storage, LLC – The Coso Battery Storage project is a 15-year agreement for a 60 MW transmission-connected, stand‑alone lithium ion battery energy storage resource and is co-located with an existing geothermal project in Little Lake, Calif. (Inyo County).
Each project is scheduled to be online by August 2021.