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BATTERY STORAGETX21 River Valley Storage 2
TX21 River Valley Storage 2 is a 50.0 MW operating battery storage site in Williamson County, Texas, operated by Key Capture Energy. Its batteries store up to 107 MWh.
Generators
Each generating unit EIA lists at this plant.
| Unit | Technology | Capacity | Status |
|---|---|---|---|
| TX21 | Batteries | 50 MW 107 MWh |
Plant details
- Operator
- Key Capture Energy
- Location
- Williamson County, Texas
- Balancing authority
- ERCO
- Sector
- IPP Non-CHP
- Capacity
- Operating: 50.0 MW
- First unit online
- Jul 2023
- EIA plant ID
- 65700
Location
30.4143, -97.3552
Nearby power plants
- TX19 River Valley Storage 1Battery storage · 50.0 MW · 0.1 mi
- East Blackland Solar Project 1Solar farms · 144 MW · 6.3 mi
- Sandow Lakes Energy StationGas power plants · 1,290 MW · 9.8 mi
- TX12 Silicon Hill StorageBattery storage · 100 MW · 13.0 mi
- WAL5479Gas power plants · 1.2 MW · 15.2 mi
- Webberville Solar ProjectSolar farms · 30.0 MW · 15.2 mi
- Adelite Storage Project LLCBattery storage · 230 MW · 16.8 mi
- Austin Gas RecoveryBioenergy plants · 4.8 MW · 16.8 mi
- Decker CreekGas power plants · 206 MW · 17.2 mi
- WAL5480Gas power plants · 1.2 MW · 17.4 mi
Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem