The Grayson Repowered Power Plant – Battery Energy Storage System is a 75,000kW energy storage project located in Glendale, California, US. The rated storage capacity of the project is 300,000kWh.

The project was announced in 2019 and will be commissioned in 2021.


The Grayson Repowered Power Plant – Battery Energy Storage System is owned by Glendale Water & Power (100%).

The key applications of the project are demand response and grid support services.

Contractors involved

Glendale Water & Power is the owner of Grayson Repowered Power Plant – Battery Energy Storage System.

Additional information

The Integrated Resource plan will provide a diverse, clean energy portfolio of generation, transmission, and distributed generation assets. The portfolio will allow GWP to provide its customers with reliable, affordable, and environmentally sustainable power and will enable GWP to transition to a 100% clean energy future. One of the proposed portfolio includes 75 megawatt (MW) 300 megawatt-hour (MWh) Battery Energy Storage System (BESS).


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.