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September 2, 2021

PG&E-Sierra Battery Energy Storage System, US

By Carmen

The PG&E-Sierra Battery Energy Storage System is a 10,000kW energy storage project located in California, US. The rated storage capacity of the project is 40,000kWh.

The electro-chemical battery energy storage project uses lithium-ion as its storage technology. The project was announced in 2017 and will be commissioned in 2023.

Description

The PG&E-Sierra Battery Energy Storage System is being developed by Enel Green Power North America and Plus Power. The project is owned by Enel Green Power North America (50%), a subsidiary of Enel North America and IHI Power Services (50%), a subsidiary of IHI.

The key applications of the project are renewable energy integration and grid optimization.

Contractors involved

Enel Green Power North America and IHI Power Services are the owners. Enel Green Power North America and Plus Power are the developers.

Additional information

The project is a part of Enel’s Capacity Storage Agreements (CSA) with California utility Pacific Gas and Electric (PG&E) for a total capacity of 85 MW/340 MWh. Under the agreements, Enel will build the Kingston, Cascade, and Sierra stand-alone lithium-ion energy storage projects, which will all be located in California. The projects are developed with Sovereign Energy Storage, an independent developer of large-scale utility battery energy storage projects, and are expected to be operational by 2023, pending review and approval by the California Public Utility Commission as well as local and regulatory agencies.

About Enel Green Power North America

Enel Green Power North America Inc (EGP-NA), a subsidiary of Enel Green Power SpA is an alternative energy company that owns, operates, and develops renewable energy plants. The company generates electric power from hydro power, biomass, wind, solar, and geothermal sources. Its hydro projects include Boott, Crescent, Salmon Falls, Dexter, High Falls, Denley, Theresa, Walden, Port Leyden, Elk Creek and GeoBon, among others. EGP-NA’s wind projects comrpise Minnesota Wind, Buffalo Dunes, Smoky Hills, Castle Rock Ridge, Prairie Rose, and St. Lawrence, among others. The company also owns and operates plants across the US and Canada. It has its operations in San Diego, Andover, Reno, and Washington, the US. EGP-NA is headquartered in Andover, Massachusetts, the US.

Methodology

All publicly-announced energy storage projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects are sourced through secondary information sources such as country specific power players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.

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