The Hecate Energy-Johanna Facility 2 – Battery Energy Storage System is a 10,000kW energy storage project located in Santa Ana, 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 will be commissioned in 2021.


The Hecate Energy-Johanna Facility 2 – Battery Energy Storage System is being developed by Hecate Grid . The project is owned by Hecate Grid (100%).

The key application of the project is grid support services.

Contractors involved

Hecate Grid is the owner. Hecate Grid is the developer. Mitsubishi Power Americas is the technology provider for the project.

Mitsubishi Power Americas is the EPC contractor for the project.

Additional information

Hecate Grid will own and operate this grid-connected energy storage system, which will be supported by long-term contracts with an electric utility and a community choice aggregator. MHPS will supply full design and turnkey engineering, procurement and construction of battery energy storage systems (BESS) totaling 20 MW / 80 MWh at Johanna 1 and Johanna 2 in Santa Ana, Calif., and will service the project under a 10-year long-term service agreement. The project will be online by the end of 2020.


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.