Terra-Gen Launches $950 Million Lockhart Solar Project
The Lockhart complex in San Bernardino County combines solar generation and battery storage to supply California's grid.
Updated on Nov. 11, 2026 in Energy
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Terra-Gen has announced commercial operation of its $950 million Lockhart Solar and Storage project in San Bernardino County, California. The facility has 538.7 MW of total capacity and can meet the annual energy needs of 350,000 homes and businesses.
Why it matters
The project pairs 365 MW of solar generation with 173.7 MW of battery storage, a combination intended to deliver electricity to the grid across periods of varying demand. It supports California's continued expansion of renewable energy and storage capacity.
The developer's figures show 538.7 MW of total capacity and a $950 million cost, but the source provides no independent verification of output or performance since commissioning.
The players
Terra-Gen
Terra-Gen is an energy developer jointly owned by Masdar and Igneo Infrastructure Partners, operating renewable generation projects in the United States, including in California and Texas.
Masdar
Masdar is the Abu Dhabi-based renewable energy company that co-owns Terra-Gen and is targeting a portfolio capacity of 100GW by 2030.
Cupertino Electric
Cupertino Electric is a California electrical contractor that served as balance-of-plant engineering, procurement and construction contractor on the Lockhart project.
The details
The Lockhart complex includes more than 925,000 solar modules and 248 battery enclosures, and was built with more than 1,000 on-site jobs over four years totaling 880,000 hours worked. Cupertino Electric served as balance-of-plant engineering, procurement and construction contractor, with EPC Services as high-voltage contractor, First Solar supplying modules and Nextpower supplying tracking systems.
Timeline
November 10, 2026: Terra-Gen announces commercial operation of the Lockhart project.
Four years: Duration of construction, totaling 880,000 hours worked.
The Tech Race
The Lockhart project extends the utility-scale solar-plus-storage model, pairing 365 MW of solar with 173.7 MW of battery capacity under long-term power purchase agreements with California load-serving entities. Its design reflects the broader industry push to store midday solar output for later delivery.
The facility's solar and battery output is intended to supply electricity to the grid and to California utilities under power purchase agreements. Its operation is expected to generate more than $40 million in property tax revenue over its operating life.
The takeaway
Large solar-plus-storage projects are increasingly built to deliver power after sunset as well as during the day. Projects like Lockhart show how storage can extend renewable output to periods of higher demand.
Further reading
For more on the state's grid and power sources, see California Energy.
Source note: This article includes information reported by KULR-8 Local News.
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