July 15, 2026
Developer, owner and operator of utility-scale solar energy Terra-Gen has achieved commercial operation of the Lockhart IV solar project in San Bernardino County, California, company officials say.
By adding 80 MW of solar capacity to California’s taxing grid, the project will provide enough wattage to power approximately 40,000 homes and businesses annually. With the fourth phase of the project complete, Lockhart Solar and Storage will have a total of 365 MW of solar and 173.7 MW of battery storage, company officials added.
“We are excited to bring the Lockhart IV project online and continue to invest in projects that help meet the growing demand for electricity and create a positive economic, social and environmental impact,” said John O’Connor, CEO of Terra-Gen. “With more than 15 GW of projects in our development pipeline, we are well positioned to continue delivering reliable, sustainable energy at scale that can help meet the energy needs of today and tomorrow.”
In total, construction of the fourth phase of the Lockhart renewable energy project created more than 220 construction jobs and allowed crews to complete 122,000 hours of work without incidents of absenteeism. Now the project will transition into a long-term power purchase agreement with an undisclosed “load-serving entity” in the Golden State.
Responding to the needs of the grid
The Lockhart Solar and Storage facility is now fully operational and can produce enough energy to meet the needs of more than 350,000 homes and businesses in California. According to Terra-Gen officials, the massive project will include nearly 1 million solar panels, as well as 248 battery enclosures.
“California’s clean energy goals are among the most ambitious in the country, and I am confident in the positive impact our new Lockhart facility will have in powering the state’s future with new, clean and reliable energy sources,” O’Connor said after ratifying the first two phases in January.
“This milestone reinforces our mission to deliver affordable energy at scale to help strengthen California’s electric grid while making a meaningful positive impact on climate change.”
The Lockhart Project is now fully online, as of July 14. The project will use an existing generation interconnection line, connecting via Southern California Edison’s Kramer Junction Substation.
Tags: California, project, storage, Terra-Gen, utility scale
