Robert Mueller Energy Center
Natural gas power plant · Travis County, Texas
Nameplate capacity
6.1 MW
Rank in Texas
#868
of 1,071 plants
In service since
2006
July 2006
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combustion Turbine
- Operator
- Austin Energy
- County
- Travis County
- Generating units
- 2
- Share of state capacity
- 0.00%
- Rank among natural gas plants in Texas
- #176 of 310
- EIA plant code
- 56374
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| CT1 | Natural Gas Fired Combustion Turbine | 4.6 MW | 3.7 MW | 2006 | Operating |
| DG1 | Petroleum Liquids | 1.5 MW | 1.5 MW | 2006 | Standby/Backup: available for service but not normally used |
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
| HEB_CPSSADC | Natural gas | 6.4 MW |
| OTHERChildrensPlano | Natural gas | 6.4 MW |
| Canyon | Hydro | 6.0 MW |
| AbbVie Waco | Natural gas | 5.6 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 6.1 MW solar plant and a 6.1 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