Vistra Subsidiary’s Largest Texas Energy Storage Project Now In Operation, Work On Largest Storage Plant In the World Continues

January 3, 2019


A Vistra subsidiary says the largest battery project in Texas is in operation.

Luminant said Thursday that it’s Upton 2 energy storage project finished construction late in December and went into operation on New Year’s Eve.

Upton 2 is the seventh largest energy storage battery system in the US, the company said, located at the Luminant 180 MW Solar Power Plant in Upton County, south of Midland-Odessa.

The 10-MW/42-MWh lithium-ion energy storage system captures excess solar energy produced at Upton 2 during the day and can release the power in late afternoon and early evening, when energy demand in ERCOT is highest, according to Vistra.

The battery system can also take advantage of low-priced grid power — during times of high wind output, for example — to charge the batteries to be available for higher demand periods.

And Vistra said the largest energy storage battery project in the world, when completed, is continuing the development stage at Moss Landing Power Plant at Monterey Bay in California, with commercial operation set for the 4th quarter of 2020.