Arizona’s Sun Streams 3 battery storage yard, part of the Longroad Sun Streams Complex, is nearing completion. Spanning over 15 acres, the yard will house approximately one million battery cells. The complex, when fully operational, will comprise over 950 MWdc of solar and 600 MWac / 2500 MWh storage.
The Longroad Sun Streams Complex is a significant renewable energy project that will generate clean energy to power 200,000 average American homes. It will also support 1,000 construction jobs and provide more than $300 million in benefits to Arizona schools and communities through long-term leases with the Arizona State Land Department and tax remittances.
The Sun Streams Complex is comprised of three projects: Sun Streams 2, 3, and 4. Sun Streams 2, a 200 MWdc solar project, has been operational since mid-2021. Sun Streams 3, a 285 MWdc solar and 215 MWac / 860 MWh storage project, is expected to begin commercial operations in 2024. Sun Streams 4, Longroad’s largest project to date, is a 377 MWdc solar and 300 MWac / 1200 MWh storage project. Sun Streams 4 reached its peak construction milestone in February 2024 and is expected to begin commercial operations by mid-2025.
All three projects utilize responsibly produced modules from Arizona-headquartered First Solar and trackers from Nextracker. The battery energy storage systems (BESS) at both Sun Streams 3 and 4 are provided by Powin. Comprehensive operations and maintenance services for Longroad’s three projects will be provided by Arizona-based Novasource.
The Sun Streams 3 battery yard is a testament to the growing importance of battery storage in the renewable energy landscape. Batteries allow for the storage of excess solar energy generated during the day, which can then be used to power homes and businesses at night or during periods of peak demand.
The Longroad Sun Streams Complex is a major investment in Arizona’s clean energy future. The complex will help to reduce the state’s reliance on fossil fuels, create jobs, and provide economic benefits to communities across the state.
