Sealy BESS
Battery storage power plant · Austin County, Texas
Nameplate capacity
200 MW
Rank in Texas
#339
of 1,071 plants
In service since
2025
July 2025
Details
- Primary fuel
- Battery storage
- Technology
- Batteries
- Operator
- Sealy Power, LLC
- County
- Austin County
- Generating units
- 1
- Share of state capacity
- 0.10%
- Rank among battery storage plants in Texas
- #24 of 211
- EIA plant code
- 69045
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| WAL | Batteries | 200 MW | 200 MW | 2025 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Texas
| Rambler | Solar | 200 MW |
| Samson Solar Energy II LLC | Solar | 200 MW |
| Shakes Solar | Solar | 200 MW |
| South Plains Wind Phase I | Wind | 200 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 200 MW solar plant and a 200 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Texas power plants · What Texas actually generates