Terra-Gen, one of the largest independent, integrated renewable energy producers in the United States, celebrated the completion of its USD 950 million Lockhart Solar and Battery Storage project in San Bernardino County, California.

A Milestone for California's Grid

The milestone was commemorated with a ribbon-cutting ceremony at the Hinkley facility, bringing together company employees, local and state officials, commercial lenders, project partners, and customers.

With a combined 538.7 MW of capacity, the facility is capable of meeting the annual energy needs of approximately 350,000 homes and businesses.

John O'Connor, chief executive officer at Terra-Gen, framed the occasion around the collaboration behind the project. "Today is about recognizing the people and partnerships that brought Lockhart to life and celebrating what this project means for the region," he said.

"Solar is one of the most economical sources of new electricity, and storage extends its value by making that energy available when it's needed most. At the scale of our Lockhart facility, that combination can make a meaningful difference for California's growing electricity needs."

Project Scale and Technology

The Lockhart complex includes more than 925,000 solar modules and 248 battery enclosures. Its configuration pairs 365 megawatts (MW) of solar generation with 173.7 MW of battery storage, a combination that allows the energy produced during daylight hours to be delivered when demand requires it.

Several major contractors and suppliers contributed to the build. Cupertino Electric served as the balance-of-plant engineering, procurement, and construction contractor, while EPC Services served as the high-voltage contractor for the project. Solar modules were supplied by First Solar, and tracking systems were provided by Nextpower.

The facility has a combination of offtake agreements with corporate buyers and long-term power purchase agreements with California load-serving entities, giving the project a contracted commercial foundation as it enters operations.

Economic and Community Impact

The construction of the solar and storage complex created more than 1,000 on-site jobs, with 880,000 hours worked over four years of engineering and construction activity.

The economic benefits are expected to extend well beyond the construction period. The facility is projected to generate more than USD 40 million in property tax revenue over its operating life, along with additional contributions and benefits to the local community.

Simon Day, vice president and head of solar development at Terra-Gen, credited the workforce behind the delivery of the project. "We are grateful for our employees and contractors whose hard work and dedication were instrumental in bringing the facility into operation," he said. "Their commitment to delivering the project on schedule and on budget while maintaining a strong focus on safety made this milestone possible."

About Terra-Gen and Its Owners

Terra-Gen, LLC is a leading U.S. developer, owner, and operator of utility-scale renewable energy projects in North America. The company's gross operating portfolio comprises 4.4 GW of wind, solar, and battery storage projects, including 5.6 GWh of energy storage facilities across 34 renewable power sites throughout the U.S., predominantly in California and Texas.

The company is jointly owned by Masdar and Igneo Infrastructure Partners. Masdar, formally Abu Dhabi Future Energy Company PJSC, was established in 2006 and is the United Arab Emirates' clean energy powerhouse.

Jointly owned by TAQA, ADNOC, and Mubadala, Masdar operates a portfolio totaling over 65 gigawatts across six continents and is targeting a portfolio capacity of 100 GW by 2030.

Igneo Infrastructure Partners is an autonomous investment team within the First Sentier Group. Operating since 1994, it invests in high-quality, mature, mid-market infrastructure companies in energy transition, digital infrastructure, waste management, water utilities, and transportation/logistics sectors in the UK, Europe, North America, Australia, and New Zealand. Igneo manages USD 34.7 billion worth of assets as of on behalf of more than 200 investors around the world.

Looking Ahead

The completion of Lockhart adds 538.7 MW of solar and storage capacity to Terra-Gen's operating portfolio at a time when, as O'Connor noted, California's electricity needs continue to grow. With its contracted offtake arrangements, its tax revenue commitments to the local community, and its combination of solar generation and battery storage at scale, the Hinkley facility now enters commercial operation as one of the notable solar-plus-storage projects in the region.

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