The Sun Streams 4 project, a 377-MWdc PV, 300-MWac/1200 MWh solar and 300-MWac battery storage facility 40 miles west of Phoenix, is about one-third completed and at peak workforce of approximately 250 solar construction workers, including 65-plus registered apprentices.

Targeted for mid-2025 completion, the project is led by McCarthy Building Cos.’ renewable energy team, which is serving as the EPC contractor. Developed by Boston-based Longroad Energy as owner and operator, this is the renewable energy company’s largest solar and battery storage project in the U.S.

“The solar workforce is playing an important role in Arizona’s transition to sustainable renewable energy,” says Dan Brown, a member of McCarthy’s renewable energy team. “This is our fifth project with Longroad, and we’re proud to continue to be cultivating and developing Arizona’s skilled solar workforce.”

Sun Streams 4 is Longroad’s largest solar project to date and includes funds from the Inflation Reduction Act.

The project site will include wildlife corridors to protect native species habitat and allow wildlife passage during operations.