Cherokee

Gas power plant in Colorado, United States of America. Approximate location 39.8073, -104.9645.

GasColoradoUnited States of AmericaCCGT · HRSGCO₂ measured

Cherokee is a 1,006 MW gas power station in Colorado, United States of America. It is operated by Public Service Co of Colorado. Based on reported annual generation of 3,932 GWh, it can supply roughly 1.1 million homes. It ranks #651 of 10,938 United States of America power plants by installed capacity. Commissioned in 1997, it is around 29 years old — long-established. Its annual emissions of 1,514,357 t CO₂/yr (US EPA GHGRP) are equivalent to about 353k 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).

1,006Source-backed capacity
1HRSG unit(s)
3,932GWh reported / yr
1,123,542homes powered
1,514,357t CO₂ / yr (US EPA GHGRP)
1997commissioned (~29 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0000469.

Data status

Known data

FacilityCherokee WRI
CountryUnited States of America · Colorado WRI
Coordinates39.8073, -104.9645 WRI
FuelGas WRI
MW installed capacity1,006 MW WRI source record; scope not independently normalised
OwnerPublic Service Co of Colorado WRI
Commissioned1997 WRI
TechnologyCCGT · HRSG WRI
GWh reported / yr3,932 GWh/yr WRI
CO₂ emissions1,514,357 t CO₂/yr measured · US EPA GHGRP

Calculated from dataset

Capacity rank in country#651 of 10938 calculated
Fuel-specific rank in country#212 of 2165 calculated
Capacity vs country/fuel peers8.30× · 121 MW median · 2165 peers calculated
Homes-powered equivalent1,123,542 calculated from reported generation
Climate10.4°C · HDD 3,092 derived from coordinates
Environmental severityC1 · 37/100 derived from coordinates

Not available

GWh reported / yrNot available not in dataset

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: Wikidata P2109 nameplate capacity; fuel: WRI source-record fuel

In context: how this plant compares

At 1,006 MW, Cherokee is well above the median gas plant in United States of America (121 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG). Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

1,514,357 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

353kpassenger cars driven for a year
197khomes' yearly energy use
25 milliontree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions per US EPA GHGRP (measured for US EPA/EU ETS, modelled for Climate TRACE).

Reported generation trend

2013: 2,874 GWh20132014: 3,075 GWh20142015: 3,192 GWh20152016: 4,634 GWh20162017: 4,275 GWh20172018: 3,842 GWh20182019: 3,932 GWh20195k 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 gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a cold semi-arid steppe climate (Köppen BSk) — Northern Hemisphere, latitude 39.8°N — which shapes how much energy it can produce and how its output varies through the year.

10.4°Cannual mean temp
3,092heating degree-days (base 18°C)
342cooling degree-days (base 18°C)
1,622 melevation

Monthly mean temperature

J: -1 °CJF: 2 °CFM: 5 °CMA: 9 °CAM: 14 °CMJ: 20 °CJJ: 23 °CJA: 22 °CAS: 17 °CSO: 11 °CON: 4 °CND: 0 °CD23 °C

Heating degree-days here run 26% 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: 65/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

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.

Site climate & environmental severity

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in a benign, low-corrosion environment (estimated ISO 9223 class C1 — Very low), with dust abrasion the leading environmental stress.

C1ISO 9223 corrosivity (indicative)
37/100environmental-severity index
23.9°Cseasonal temperature swing
1243 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby plants

The #212 largest gas power plant of 2165 in United States of America by capacity.

United States of America has 2165 gas power plants in this dataset, together about 789,950 MW of capacity.

Nearby power plants

Location

Coordinates 39.8073, -104.9645 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Cherokee?

Cherokee is a 1,006 MW source-record gas power plant in Colorado, United States of America, commissioned in 1997.

How much electricity does Cherokee generate?

Cherokee generates about 3,932 GWh of electricity per year.

How many homes can Cherokee power?

Its output is enough to supply roughly 1,123,542 homes.

Who operates Cherokee?

Cherokee is operated by Public Service Co of Colorado.

How much CO₂ does Cherokee emit?

Cherokee has measured emissions of about 1,514,357 tonnes of CO₂ per year (US EPA GHGRP).

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