The Tesla -Elkhorn Battery Energy Storage System is an 182,500kW energy storage project located in South Bay – Moss Landing, California, US. The rated storage capacity of the project is 730,000kWh.

The electro-chemical battery energy storage project uses lithium-ion as its storage technology. The project was announced in 2018 and will be commissioned in 2021.


The Tesla-Elkhorn Battery Energy Storage System is being developed by Tesla. The project is owned by Fluence Energy (50%) and Pacific Gas and Electric (50%), a subsidiary of PG&E.

The key applications of the project are frequency regulation and grid support services.

Contractors involved

Fluence Energy and Pacific Gas and Electric are the owners. Tesla is the developer. Tesla is the technology provider for the project.

Pacific Gas and Electric is the EPC contractor for the project.

Additional information

The project is a part of PG&E’s cost-effective energy storage projects totaling approximately 567 MW, requested approval in a filing at the California Public Utilities Commission (CPUC).

Fluence, the energy storage technology and system integration company jointly owned by AES Corporation and Siemens — with Qatar Investment Authority poised to take a minority stake through a US$125 million investment — has agreed to optimise operations and market bidding activities for an 182.5MW / 730MWh lithium-ion battery storage plant in California.

About Tesla

Tesla Inc (Tesla) is an automotive and energy company. It designs, develops, manufactures, sells, and leases fully electric vehicles and energy generation and storage systems. The company produces and sells the Model Y, Model 3, Model X, Model S, Cybertruck, Tesla Semi, and Tesla Roadster vehicles. Tesla also installs and maintains energy systems and sells solar electricity; and offers end-to-end clean energy products, including generation, storage, and consumption. It markets and sells vehicles to consumers through a network of company-owned stores and galleries. The company has manufacturing facilities in the US and China. Tesla is headquartered in Palo Alto, California, the US.


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.