US-based Pacific Gas and Electric Company (PG&E) has submitted an application seeking approval for five energy storage projects.
Approval will be granted by the California Public Utilities Commission (CPUC). The projects have a combined capacity of 423MW.
The energy storage projects are expected to make sure the electric system’s reliability in the future.
PG&E Energy policy and procurement senior vice-president Fong Wan said: “PG&E is deeply committed to the California vision of a sustainable energy future.
As we continue to integrate large amounts of intermittent renewable energy, we are now taking advantage of advancements in energy storage technology to ensure that customers continue to receive clean and reliable power from a flexible and dependable electric grid.”
The company noted that the five projects will be equipped with lithium-ion battery energy storage systems (BESS).
The systems will either be co-located with solar or geothermal plants or be built as part of new energy storage projects. Each system is said to have a four-hour discharge duration.
The five projects that are part of the proposal include Diablo Energy Storage, which has three separate 15-year agreements totalling 150MW and will be located in Contra Costa County.
The Dynegy Marketing and Trade’s Vistra Energy MOSS100 Energy Storage project, which is under contract to PG&E, has a ten-year agreement for 100MW. It is located in California”s Monterey County and currently under development phase.
Gateway Energy Storage, which is also part of the proposal, comprises of a 15-year agreement for a 50MW project and is located in San Diego.
The Blythe Energy Storage 110 project has a 15-year agreement for 63MW and is co-located with an existing 110MW solar project in California’s Riverside County.
The Coso Battery Storage project also holds 15-year agreement for a 60MW transmission-connected is co-located with an existing geothermal project in Little Lake.
Each project is scheduled to be online by August 2021.
Wan added: “PG&E is well positioned with the energy storage projects under contract today to meet the state’s ambitious clean energy and storage goals while ensuring grid reliability, and we will continue to look toward innovation, integration of new technologies, and collaboration to drive a clean energy future.”