Terra-Gen, jointly owned by Masdar and Igneo Infrastructure Partners, has commenced commercial operations at the Lockhart CL I and II battery energy storage projects in San Bernardino County, California. The Lockhart CL I ESS project, built and located on the same site as the already operational Lockhart solar and battery resources, provides a capacity of 69 MW (276 MWh), while the Lockhart CL II ESS will add an additional 59.7 MW (238.8 MWh) of capacity.

John O'Connor, CEO of Terra-Gen, stated, "California's clean energy goals are among the most ambitious in the country, and I am confident that our new Lockhart facility will positively impact the state's future through the provision of new, clean, and reliable energy sources."

This 128.7 MW, four-hour lithium-ion battery energy storage system portfolio project comprises 164 battery enclosures and utilizes the existing generation tie-line connecting to the Edison Kramer Junction substation in Southern California. The utilization of resource adequacy capacity is fully contracted under two long-term resource adequacy agreements with Pacific Gas and Electric Company (PG&E).

Gus Luna, Chief Development Officer of Terra-Gen, stated, "We designed this expansion to seamlessly integrate with our existing facilities and maximize the use of shared infrastructure. The Lockhart Complex demonstrates our team's ability to deliver comprehensive projects on time, on a large scale, and to the highest performance and safety standards."

The construction of the new factory created over 115 jobs during its peak period, and workers completed a total of over 85,000 hours of work during the construction and operational transition period.