Sweeny Cogen Facility
Natural gas power plant · Brazoria County, Texas
Nameplate capacity
572 MW
Rank in Texas
#80
of 1,071 plants
In service since
1997
August 1997
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combustion Turbine
- Operator
- Sweeny Cogeneration LLC
- County
- Brazoria County
- Generating units
- 4
- Share of state capacity
- 0.28%
- Rank among natural gas plants in Texas
- #61 of 310
- EIA plant code
- 55015
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GEN1 | Natural Gas Fired Combustion Turbine | 143 MW | 109 MW | 1997 | Operating |
| GEN2 | Natural Gas Fired Combustion Turbine | 143 MW | 109 MW | 1997 | Operating |
| GEN3 | Natural Gas Fired Combustion Turbine | 143 MW | 109 MW | 1997 | Operating |
| GEN4 | Natural Gas Fired Combustion Turbine | 143 MW | 109 MW | 2000 | 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
| Arthur Von Rosenberg | Natural gas | 575 MW |
| Thomas C Ferguson | Natural gas | 575 MW |
| Harrison County Power Project | Natural gas | 570 MW |
| High Lonesome Wind Power, LLC Hybrid | Wind | 563 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 572 MW solar plant and a 572 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