Lone Star

Gas power plant in Texas, United States of America. Approximate location 32.9215, -94.7226.

GasTexasUnited States of AmericaEnginePre Construction

Lone Star is a 40 MW gas power plant in Texas, United States of America. It is operated by Southwestern Electric Power Co. Based on reported annual generation of 12 GWh, it can supply roughly 3.3k homes. It ranks #4005 of 10,938 United States of America power plants by installed capacity. 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).

40Legacy source-record capacity
12GWh reported / yr
3,285homes powered
1954Pre Construction year

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0003477.

Data status

Known data

FacilityLone Star WRI
CountryUnited States of America · Texas WRI
Coordinates32.9215, -94.7226 WRI
FuelGas WRI
MW installed capacity40 MW WRI source record; scope not independently normalised
OwnerSouthwestern Electric Power Co WRI
Commissioned1954 WRI
TechnologyEngine WRI
GWh reported / yr12 GWh/yr WRI

Calculated from dataset

CO₂ emissions4,600 t CO₂/yr calculated
Capacity rank in country#4005 of 10938 calculated
Fuel-specific rank in country#1461 of 2165 calculated
Capacity vs country/fuel peers0.33× · 121 MW median · 2165 peers calculated
Homes-powered equivalent3,285 calculated from reported generation
Climate17.7°C · HDD 1,225 derived from coordinates
Environmental severityC3 · 37/100 derived from coordinates

Not available

GWh reported / yrNot available not in dataset

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

Data provenance

The capacity and fuel fields on this page are source-record values from the upstream open dataset. They are useful for identification and ranking, but they have not been upgraded to a 2026 registry/GEM-location verified value.

capacity: WRI Global Power Plant Database source-record (legacy); fuel: WRI source-record fuel

In context: how this plant compares

At 40 MW, Lone Star is below the median gas plant in United States of America (121 MW). Technically it is described as Engine. Its current lifecycle status is “pre construction” — so it is not yet, or no longer, generating at full output. 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.

Reported generation trend

2013: 2 GWh20132014: 2 GWh20142015: 6 GWh20152016: 8 GWh20162017: 1 GWh20172018: 6 GWh20182019: 12 GWh201912 GWh

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

Owner

Operated by Southwestern Electric Power Co. All plants by this company →

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 32.9°N — which shapes how much energy it can produce and how its output varies through the year.

17.7°Cannual mean temp
1,225heating degree-days (base 18°C)
1,149cooling degree-days (base 18°C)
112 melevation

Monthly mean temperature

J: 7 °CJF: 9 °CFM: 14 °CMA: 18 °CAM: 22 °CMJ: 26 °CJJ: 28 °CJA: 28 °CAS: 24 °CSO: 18 °CON: 12 °CND: 8 °CD28 °C

Heating degree-days here run 50% 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: 29/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

A gas turbine here also runs ~2% 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

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. 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)
37/100environmental-severity index
21.3°Cseasonal temperature swing
355 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

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 #1461 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 32.9215, -94.7226 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Lone Star?

Lone Star is a 40 MW source-record gas power plant in Texas, United States of America, planned/announced for 1954.

How much electricity does Lone Star generate?

Lone Star generates about 12 GWh of electricity per year.

How many homes can Lone Star power?

Its output is enough to supply roughly 3,285 homes.

Who operates Lone Star?

Lone Star is operated by Southwestern Electric Power Co.

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