Vistra’s Track Record of Bringing New Technologies to Texas: Ensuring a Reliable & Efficient Grid

Vistra has a proven track record of growing the Texas grid, providing affordable, reliable electricity for homes and businesses across the state. In May 2022, the DeCordova Energy Storage Facility in Granbury, Texas, began commercial operations storing and releasing electricity to the ERCOT grid in time for another hot Texas summer.

“DeCordova offers a unique value proposition – not only can this battery system provide instantaneous full power to the grid with the flip of a switch, but it is also co-located on the same site as our quick-start DeCordova natural gas-fueled power plant. This pairing means we essentially have a large, one-hour battery system with dispatchable, reliable generation, leading to continuity of operation and resiliency of the grid. In addition, these gas-fueled generation units have seven days of diesel backup in the event of any disruption of natural gas supplies, which is yet another example of the resiliency aspect of the Decordova site,” said Jim Burke, President and CEO, Vistra.

Comprised of more than 22,360 individual battery modules, DeCordova Energy Storage Facility can store enough electricity to power approximately 130,000 average Texas residences during normal grid conditions. The batteries capture excess electricity from the grid, primarily overnight during high wind-output hours, and can release the power when customer demand is highest.

DeCordova Power Plant and Energy Storage Facility
Fuel sources: Natural gas and energy storage
Current operating capacity (gas): 260 MW
Current operating capacity (storage): 260 MW/260 megawatt-hour (MWh)
Began operations: 1990
Energy storage– 2022
Location: Hood County