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Robert Mueller Energy Center — United States of America

Gas power plant in Texas, United States of America. Approximate location 30.305, -97.7077.

GasTexasUnited States of America

Robert Mueller Energy Center is a 6.1 MW gas power plant in Texas, United States of America. It is operated by Austin Energy. Based on reported annual generation of 28 GWh, it can supply roughly 7.9k homes. It ranks #6359 of 10,884 United States of America power plants by installed capacity. Commissioned in 2006, it is around 20 years old — relatively modern. In context, gas supplies about 40.0% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

6.1MW installed capacity
28GWh reported / yr
7,885homes powered
2006commissioned (~20 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0056374.

Data status

Known data

FacilityRobert Mueller Energy Center WRI
CountryUnited States of America · Texas WRI
Coordinates30.305, -97.7077 WRI
FuelGas WRI
MW installed capacity6.1 MW Wikidata P2109; installed/nameplate capacity
Verification noteQuality label backfilled from existing source-backed capacity provenance on 2026-07-05; capacity value was not changed. source-verified
OwnerAustin Energy WRI
Commissioned2006 WRI
GWh reported / yr28 GWh·a⁻¹ WRI

Calculated from dataset

CO₂ emissions11,040 t CO₂·a⁻¹ calculated
Capacity rank in country#6359 / 10884 calculated
Fuel-specific rank in country#1873 / 2165 calculated
Capacity vs country/fuel peers0.05× · 121.2 MW · n=2165 calculated
Homes-powered equivalent7,885 calculated from reported generation
Climate19.8°C · HDD 819 derived from coordinates
Environmental severityC3 · 39/100 derived from coordinates

Not available

TechnologyNot available not in dataset

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

Source of the capacity and fuel values:

capacity: Wikidata P2109; fuel: WRI GPPD

In context: how this plant compares

At 6.1 MW, Robert Mueller Energy Center is below the median gas plant in United States of America (121.2 MW). Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

Key facts

Load factor
52%, from 28 GWh of reported generation; the median for 1622 gas plants in United States of America that report generation is 26%
Generation trend
28 GWh in 2013 and 28 GWh in 2019 (−1%)
Highest and lowest year
2018: 29 GWh; 2014: 27 GWh
Share of United States of America gas capacity
less than 0.1% of 789,950 MW across 2,165 plants in this dataset
Age among peers
1,356 of 1,973 dated gas plants in United States of America are older

Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).

Reported generation trend

2013: 28 GWh20132014: 27 GWh20142015: 28 GWh20152016: 28 GWh20162017: 29 GWh20172018: 29 GWh20182019: 28 GWh201929 GWh

Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Austin Energy.

Local climate & thermal context

This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 30.3°N — which shapes how much energy it can produce and how its output varies through the year.

19.8°Cannual mean temp
819heating degree-days (base 18°C)
1,499cooling degree-days (base 18°C)
148 melevation

Monthly mean temperature

J: 9 °CJF: 12 °CFM: 16 °CMA: 20 °CAM: 24 °CMJ: 27 °CJJ: 29 °CJA: 29 °CAS: 26 °CSO: 21 °CON: 15 °CND: 11 °CD29 °C

Heating degree-days here run 67% below the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.

Climate heat-demand index: 24/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

A gas turbine here also runs ~3% below its ISO (15°C) rating at this annual mean (typical CCGT curve, estimate).

Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.

Site climate & environmental severity

This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.

C3ISO 9223 corrosivity (indicative)
39/100environmental-severity index
19.6°Cseasonal temperature swing
246 kmdistance to coast

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby plants

The #1873 largest gas power plant of 2165 in United States of America by capacity.

United States of America has 2165 gas power plants in this dataset, together about 789,950 MW of capacity.

Nearby power plants

Location

Coordinates 30.305, -97.7077 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Robert Mueller Energy Center?

Robert Mueller Energy Center is a 6.1 MW gas power plant in Texas, United States of America, commissioned in 2006.

How much electricity does Robert Mueller Energy Center generate?

Robert Mueller Energy Center generates about 28 GWh of electricity per year.

Who operates Robert Mueller Energy Center?

Robert Mueller Energy Center is operated by Austin Energy.

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