Robert Mueller Energy Center
Natural gas power plant in Travis County, Texas. 4.6 MW of nameplate capacity across 1 generator, operated by Austin Energy.
Also known as EIA plant 56374
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 4.6 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- July 2006First generator online
- Operator
- Austin EnergyEIA operator ID 1015
- Grid
- ERCOTBalancing authority ERCO
- Price nodes
- None linkedNo verified ISO node
- Location
- Travis County, TX30.3050, −97.7077
- EIA plant ID
- 56374EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Robert Mueller produces
Free · EIA-923Net generation, 2025
30.0 GWh
29,994 MWh, final
Capacity factor, 2025
56.1%
2024: 60.1%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
22.7–32.2
GWh a year. Low 2023, high 2024
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | 1,309 | Not reported | 12 of 12 |
| 2007 | 18,062 | Not reported | 12 of 12 |
| 2008 | 12,272 | Not reported | 12 of 12 |
| 2009 | 16,998 | Not reported | 12 of 12 |
| 2010 | 23,704 | 44.4% | 12 of 12 |
| 2011 | 24,972 | 46.7% | 12 of 12 |
| 2012 | 29,072 | 54.3% | 12 of 12 |
| 2013 | 27,802 | 52.0% | 12 of 12 |
| 2014 | 26,993 | 50.5% | 12 of 12 |
| 2015 | 27,665 | 51.8% | 12 of 12 |
| 2016 | 28,311 | 52.8% | 12 of 12 |
| 2017 | 28,608 | 53.5% | 12 of 12 |
| 2018 | 28,767 | 53.8% | 12 of 12 |
| 2019 | 27,555 | 51.6% | 12 of 12 |
| 2020 | 27,064 | 50.5% | 12 of 12 |
| 2021 | 23,573 | 44.1% | 12 of 12 |
| 2022 | 27,674 | 51.8% | 12 of 12 |
| 2023 | 22,745 | 42.6% | 12 of 12 |
| 2024 | 32,180 | 60.1% | 12 of 12 |
| 2025 | 29,994 | 56.1% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| CT1 | Natural Gas Fired Combustion Turbine | 4.6 | July 2006 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Austin Energy as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Questions about Robert Mueller
How much power does Robert Mueller Energy Center produce?
Robert Mueller Energy Center reported 29,994 MWh (30.0 GWh) of net generation in 2025, a 56.1% capacity factor on 4.6 MW of nameplate capacity.
Where is Robert Mueller Energy Center?
Robert Mueller Energy Center is in Travis County, Texas, at 30.3050, −97.7077. It is in the Electric Reliability Council of Texas, Inc. balancing area (ERCO).
Who operates Robert Mueller Energy Center?
EIA-860M for August 2026 lists Austin Energy as the operator (EIA operator ID 1015). The operator is not always the owner.
When did Robert Mueller Energy Center start operating?
Its first generator began operating in July 2006, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page