The Old 300 Storage project has reached commercial operations and is now fully integrated with the ERCOT grid, using made-in-America Tesla battery energy storage systems (BESS). It is co-located with a 430 MW solar project that was switched on in 2024.
The 250 MW/500 MWh Old 300 Storage project in Needville, Texas, co-located with a 430 MW solar project, has reached commercial operations, according to Danish multinational energy company Ørsted.
Old 300 Storage is fully integrated into the ERCOT grid and will be operated independently from the Old 300 Solar installation, which has been generating since 2024.
The Energy storage facility comprises Tesla Megapacks manufactured at the company’s Lathrop, California facility. Ørsted said the developer and Tesla have been working in collaboration with the Needville Fire Department to provide “comprehensive education” on the energy storage technology and safety response protocols.
Melissa Peterson, president of Ørsted Americas Onshore, noted that BESS has been playing a larger role on the ERCOT grid, providing power at times of tight supply and demand margins.
