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Southcentral Power Project

Gas power plant in Alaska, United States of America. Approximate location 61.1674, -149.9053.

GasAlaskaUnited States of AmericaCO₂ reported

Southcentral Power Project is a 204 MW gas power station in Alaska, United States of America. It is operated by Chugach Electric Assn Inc. Based on reported annual generation of 798 GWh, it can supply roughly 227,971 homes. It ranks #1215 of 9,833 United States of America power plants by installed capacity. Commissioned in 2013, it is around 13 years old — relatively modern. Its measured emissions of 211,640 t CO₂/yr (Climate TRACE) are equivalent to about 49,333 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).

204MW installed capacity
798GWh reported / yr
227,971homes powered
211,640t CO₂ / yr (Climate TRACE)
2013commissioned (~13 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0057036.

211,640 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

49,333passenger cars driven for a year
27,600homes' yearly energy use
3,527,333tree seedlings grown 10 years to absorb it

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

Reported generation trend

2013: 947 GWh20132014: 909 GWh20142015: 868 GWh20152016: 872 GWh20162017: 863 GWh20172018: 815 GWh20182019: 798 GWh2019947 GWh

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

Owner

Operated by Chugach Electric Assn Inc. 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 subarctic (boreal) climate (Köppen Dfc) — Northern Hemisphere, latitude 61.2°N — which shapes how much energy it can produce and how its output varies through the year.

1.8°Cannual mean temp
5,882heating degree-days (base 18°C)
0cooling degree-days (base 18°C)
349 melevation

Monthly mean temperature

J: -8 °CJF: -7 °CFM: -4 °CMA: 1 °CAM: 7 °CMJ: 11 °CJJ: 13 °CJA: 12 °CAS: 8 °CSO: 1 °CON: -5 °CND: -7 °CD13 °C

Heating degree-days here run 139% above 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: 98/100 — this site sits in the top 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 #681 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 61.1674, -149.9053 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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