EDP and SRP Celebrate Completion of 800 MWh Flatland Energy Storage in the United States
The project is the largest BESS within the EDP Group and, with a battery storage capacity of 200 MW / 800 MWh, supplies the equivalent of approximately 44,500 homes in Arizona, strengthening grid reliability and delivering long-term economic benefits.
EDP, through its subsidiary EDP Renewables North America (EDPR NA), and Salt River Project (SRP), a not for-profit public power utility serving more than two million people in central Arizona, today celebrated the completion of Flatland Energy Storage, a 200 megawatt (MW) / 800 megawatt-hour (MWh) battery energy storage system (BESS) in Arizona. Flatland Energy Storage has the capacity to power the equivalent of approximately 44,500 Arizona homes, helping ensure reliable electricity during periods of peak demand and supporting the state’s growing energy needs.
Flatland Energy Storage demonstrates the increasing importance of utility-scale battery projects in enhancing grid flexibility and improving energy reliability. Flatland Energy Storage is the largest BESS within the EDP Group.
“Flatland Energy Storage is part of SRP’s all-of-the-above approach to providing reliable, affordable, and sustainable power to our customers,” said Bobby Olsen, SRP Associate General Manager and Chief Power System Executive. “SRP will continue to invest in battery energy storage resources as part of its growing resource portfolio.”
Flatland Energy Storage represents more than €17.3 million in local and regional economic impact over its lifetime, including revenue to local government to support vital public services and infrastructure. EDPR NA is a leading developer and operator of clean energy infrastructure in Arizona, with approximately 600 MW of gross operating capacity across solar and storage powering the equivalent of more than 113,000 homes.
EDP is committed to scaling energy storage as a core pillar of the energy transition, with a growing portfolio of more than 460 MW of storage in operation and under construction in the United States, Europe, South America, and the Asia-Pacific.