Cottonwood Bayou Storage
Battery storage power plant · Brazoria County, Texas
Nameplate capacity
150 MW
Rank in Texas
#434
of 1,095 plants
In service since
2026
January 2026
Details
- Primary fuel
- Battery storage
- Technology
- Batteries
- Operator
- Cottonwood Bayou Storage, LLC
- County
- Brazoria County
- Generating units
- 1
- Share of state capacity
- 0.07%
- Rank among battery storage plants in Texas
- #39 of 226
- EIA plant code
- 69251
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| CTWST | Batteries | 150 MW | 150 MW | 2026 | 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
| Chillingham Storage | Battery storage | 150 MW |
| Compadre Solar | Solar | 150 MW |
| Crane Solar Project | Solar | 150 MW |
| Crowned Heron 1 - Storage, LLC | Battery storage | 150 MW |
About this data
From EIA’s inventory of operable generators, August 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 150 MW solar plant and a 150 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