247th largest plant in Texas · 1368th nationally
Callisto I Energy Center is a battery storage power plant in Texas with a nameplate capacity of 223 MW.
| Plant Name | Callisto I Energy Center |
|---|---|
| Operator | Callisto I Energy Center |
| City | Houston |
| County | Harris County |
| State | Texas |
| ZIP | 77045 |
| Coordinates | 29.64681, -95.45054 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| CALL1 | Batteries | Battery | 223 MW | Operating | 2024 |
| NERC Region | TRE |
|---|---|
| Balancing Authority | Electric Reliability Council Of Texas, Inc. |
Battery storage facilities don't generate electricity — they store it. They charge from the grid (often from solar during the day) and discharge during peak demand or to firm up renewables. EIA classifies them as power plants because they connect to the grid like one.