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Wansley Combined Cycle

Gas power plant in Georgia, United States of America. Approximate location 33.4064, -85.037.

GasGeorgiaUnited States of AmericaCO₂ reported

Wansley Combined Cycle is a 1,239 MW gas power station in Georgia, United States of America. It is operated by Southern Power Co. Based on reported annual generation of 8,847 GWh, it can supply roughly 2,527,657 homes. It ranks #220 of 9,833 United States of America power plants by installed capacity. Commissioned in 2002, it is around 24 years old — relatively modern. Its measured emissions of 2,462,700 t CO₂/yr (Climate TRACE) are equivalent to about 574,056 cars driven for a year. 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).

1,239MW installed capacity
8,847GWh reported / yr
2,527,657homes powered
2,462,700t CO₂ / yr (Climate TRACE)
2002commissioned (~24 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0055965.

2,462,700 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

574,056passenger cars driven for a year
321,166homes' yearly energy use
41,045,000tree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions reported to Climate TRACE.

Reported generation trend

2013: 4,359 GWh20132014: 5,965 GWh20142015: 7,860 GWh20152016: 7,072 GWh20162017: 8,708 GWh20172018: 8,655 GWh20182019: 8,847 GWh20199k GWh

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

Owner

Operated by Southern 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 33.4°N — which shapes how much energy it can produce and how its output varies through the year.

16.3°Cannual mean temp
1,455heating degree-days (base 18°C)
858cooling degree-days (base 18°C)
239 melevation

Monthly mean temperature

J: 6 °CJF: 8 °CFM: 12 °CMA: 16 °CAM: 20 °CMJ: 24 °CJJ: 26 °CJA: 25 °CAS: 23 °CSO: 17 °CON: 12 °CND: 8 °CD26 °C

Heating degree-days here run 41% 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: 33/100 — this site sits in the bottom 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 ~1% 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 #77 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 33.4064, -85.037 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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