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Oneta Energy Center

Gas power plant in Oklahoma, United States of America. Approximate location 36.0119, -95.6967.

GasOklahomaUnited States of America

Oneta Energy Center is a 1,214 MW gas power station in Oklahoma, United States of America. It is operated by Oneta Power LLC. Based on reported annual generation of 5,358 GWh, it can supply roughly 1,530,942 homes. It ranks #229 of 9,833 United States of America power plants by installed capacity. Commissioned in 2002, it is around 24 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).

1,214MW installed capacity
5,358GWh reported / yr
1,530,942homes powered
2002commissioned (~24 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0055225.

~2,143,320 t CO₂/yr (estimated) — in everyday terms

This facility's annual emissions are roughly equivalent to:

499,608passenger cars driven for a year
279,515homes' yearly energy use
35,722,000tree seedlings grown 10 years to absorb it

Estimated, not measured: from reported annual generation × a typical gas emission factor (~400 g CO₂/kWh, IPCC AR5 / US EIA). Actual emissions depend on plant efficiency and running hours.Equivalencies via US EPA Greenhouse Gas Equivalencies.

Reported generation trend

2013: 2,308 GWh20132014: 2,980 GWh20142015: 5,468 GWh20152016: 6,149 GWh20162017: 4,247 GWh20172018: 4,977 GWh20182019: 5,358 GWh20196k GWh

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

Owner

Operated by Oneta Power LLC.

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 36.0°N — which shapes how much energy it can produce and how its output varies through the year.

15.5°Cannual mean temp
1,868heating degree-days (base 18°C)
992cooling degree-days (base 18°C)
182 melevation

Monthly mean temperature

J: 2 °CJF: 5 °CFM: 10 °CMA: 16 °CAM: 20 °CMJ: 25 °CJJ: 28 °CJA: 27 °CAS: 23 °CSO: 17 °CON: 10 °CND: 4 °CD28 °C

Heating degree-days here run 24% 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: 41/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.

A gas turbine here also runs ~0% 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.

How it compares & nearby plants

The #83 largest gas power plant of 1818 in United States of America by capacity.

United States of America has 1818 gas power plants in this dataset, together about 546,436 MW of capacity.

Nearby power plants

Location

Coordinates 36.0119, -95.6967 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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