Jack McDonough

Gas power plant in Georgia, United States of America. Approximate location 33.8239, -84.4758.

GasGeorgiaUnited States of America

Jack McDonough is a 2,848 MW gas power station in Georgia, United States of America. It is operated by Georgia Power Co. Based on reported annual generation of 19,072 GWh, it can supply roughly 5,449,085 homes. It ranks #16 of 9,833 United States of America power plants by installed capacity. Commissioned in 2010, it is around 16 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).

2,848MW installed capacity
19,072GWh reported / yr
5,449,085homes powered
2010commissioned (~16 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0000710.

~7,628,720 t CO₂/yr (estimated) — in everyday terms

This facility's annual emissions are roughly equivalent to:

1,778,256passenger cars driven for a year
994,877homes' yearly energy use
127,145,333tree 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: 0 GWh20132014: 0 GWh20142015: 0 GWh20152016: 17,320 GWh20162017: 16,329 GWh20172018: 0 GWh20182019: 19,072 GWh201919k GWh

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

Owner

Operated by Georgia 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 33.8°N — which shapes how much energy it can produce and how its output varies through the year.

16.5°Cannual mean temp
1,444heating degree-days (base 18°C)
921cooling degree-days (base 18°C)
287 melevation

Monthly mean temperature

J: 6 °CJF: 8 °CFM: 12 °CMA: 16 °CAM: 21 °CMJ: 24 °CJJ: 26 °CJA: 26 °CAS: 23 °CSO: 17 °CON: 12 °CND: 7 °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 #3 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 33.8239, -84.4758 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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