Comanche (CO)

Coal power plant in Colorado, United States of America. Approximate location 38.2081, -104.5747.

CoalColoradoUnited States of AmericaCO₂ reported

Comanche (CO) is a 1,635 MW coal power station in Colorado, United States of America. It is operated by Public Service Co of Colorado. Based on reported annual generation of 8,500 GWh, it can supply roughly 2,428,542 homes. It ranks #135 of 9,833 United States of America power plants by installed capacity. Commissioned in 1992, it is around 34 years old — long-established. Its measured emissions of 6,991,406 t CO₂/yr (US EPA GHGRP) are equivalent to about 1,629,698 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).

1,635MW installed capacity
8,500GWh reported / yr
2,428,542homes powered
6,991,406t CO₂ / yr (US EPA GHGRP)
1992commissioned (~34 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0000470.

6,991,406 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

1,629,698passenger cars driven for a year
911,764homes' yearly energy use
116,523,433tree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions reported to US EPA GHGRP.

Reported generation trend

2013: 8,960 GWh20132014: 8,290 GWh20142015: 8,636 GWh20152016: 9,060 GWh20162017: 9,275 GWh20172018: 9,762 GWh20182019: 8,500 GWh201910k GWh

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

Owner

Operated by Public Service Co of Colorado. 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 cold semi-arid steppe climate (Köppen BSk) — Northern Hemisphere, latitude 38.2°N — which shapes how much energy it can produce and how its output varies through the year.

11.6°Cannual mean temp
2,831heating degree-days (base 18°C)
532cooling degree-days (base 18°C)
1,480 melevation

Monthly mean temperature

J: -1 °CJF: 2 °CFM: 6 °CMA: 11 °CAM: 16 °CMJ: 22 °CJJ: 25 °CJA: 24 °CAS: 19 °CSO: 12 °CON: 4 °CND: 0 °CD25 °C

Heating degree-days here run 15% 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: 58/100 — 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.

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 #54 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 38.2081, -104.5747 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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