Callisto II Energy Center

Houston, Texas

Capacity
400 MW
Status
Under construction
Fuel
Battery storage
Technology
Batteries
Operator
Callisto II Energy Center LLC
City
Houston
County
Harris County
State
Texas
Expected online
November 2026
Balancing authority
ERCO

Callisto II Energy Center is a 400 MW battery storage power plant in Houston, Texas. Operated by Callisto II Energy Center LLC, it is under construction with an expected online date of November 2026. The facility is located in Harris County, within the ERCO balancing authority.

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Nearby battery storage plants in Texas

Source: U.S. Energy Information Administration (EIA-860M)