Longroad Energy begins construction on Sun Streams 4 solar, Arizona

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Longroad Energy, a renewable energy developer, owner, and operator located in the United States, has secured finance and begun construction on Sun Streams 4, a 377 MW DC solar and 1,200 MWh storage project.

Sun Streams 4 is Longroad’s largest solar and storage project to date, and it is the third project in the company’s Sun Streams complex in Maricopa County, Arizona. Sun Streams 4 is planned to begin commercial operations in mid-2025.

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Sun Streams 4 is planned to employ around 200 workers throughout the building phase. McCarthy Building Companies was chosen to handle the engineering, procurement, and construction.

The complete production of Sun Stream 4 will be acquired by Arizona Public Service (APS) under a long-term PPA. The project will assist Arizona’s system dependability, especially during peak demand summer months.

The project’s trackers are supplied by Nextracker, while the solar inverters are supplied by Sungrow. NovaSource Power Services and Longroad’s subsidiary Longroad Energy Services will offer comprehensive project operations and maintenance services.

More details on Sun Streams 4 solar project

Powin, a U.S.-based energy storage platform supplier, will deliver the battery energy storage technology for Sun Stream 4. SMA inverters and AESC cells will be used in the system, which will be incorporated into Powin’s Modular and Scalable Centipede latform. Additionally, longroad will provide long-term operations and maintenance services in collaboration with Powin and NovaSource Power Services.

“A landmark project for us, Sun Streams 4 has the distinction of being Longroad’s largest project to date by both megawatts and investment capital, and one of our first projects to incorporate provisions from the historic Inflation Reduction Act,” says Paul Gaynor, president and chief executive officer of Longroad Energy

The project is part of Longroad’s Sun Streams portfolio, which it bought from First Solar in early 2021.