Healy

Coal power plant in Alaska, United States of America. Approximate location 63.8542, -148.95.

CoalAlaskaUnited States of AmericaCO₂ reported

Healy is a 93 MW coal power plant in Alaska, United States of America. It is operated by Golden Valley Elec Assn Inc. Based on reported annual generation of 345 GWh, it can supply roughly 98,457 homes. It ranks #2072 of 9,833 United States of America power plants by installed capacity. Commissioned in 1987, it is around 39 years old — long-established. Its measured emissions of 248,830 t CO₂/yr (Climate TRACE) are equivalent to about 58,002 cars driven for a year. In context, coal supplies about 16.3% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

93MW installed capacity
345GWh reported / yr
98,457homes powered
248,830t CO₂ / yr (Climate TRACE)
1987commissioned (~39 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0006288.

248,830 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

58,002passenger cars driven for a year
32,450homes' yearly energy use
4,147,167tree seedlings grown 10 years to absorb it

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

Reported generation trend

2013: 191 GWh20132014: 0 GWh20142015: 0 GWh20152016: 0 GWh20162017: 0 GWh20172018: 0 GWh20182019: 345 GWh2019345 GWh

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

Owner

Operated by Golden Valley Elec Assn Inc. All plants by this company →

Local climate & thermal context

This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a subarctic (boreal) climate (Köppen Dfc) — Northern Hemisphere, latitude 63.9°N — which shapes how much energy it can produce and how its output varies through the year.

-3.1°Cannual mean temp
7,681heating degree-days (base 18°C)
0cooling degree-days (base 18°C)
771 melevation

Monthly mean temperature

J: -17 °CJF: -15 °CFM: -11 °CMA: -4 °CAM: 5 °CMJ: 11 °CJJ: 12 °CJA: 10 °CAS: 4 °CSO: -5 °CON: -13 °CND: -15 °CD12 °C

Heating degree-days here run 212% 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: 100/100 — 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.

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 #235 largest coal power plant of 286 in United States of America by capacity.

United States of America has 286 coal power plants in this dataset, together about 249,149 MW of capacity.

Nearby power plants

Location

Coordinates 63.8542, -148.95 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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