Home / North America / United States of America / Culbertson Generation Station

Culbertson Generation Station

Gas power plant in Montana, United States of America. Approximate location 48.21, -104.3917.

GasMontanaUnited States of AmericaOCGTCO₂ measured

Culbertson Generation Station is a 91 MW gas power plant in Montana, United States of America. It is operated by Basin Electric Power Coop. Based on reported annual generation of 116 GWh, it can supply roughly 33k homes. It ranks #2966 of 10,938 United States of America power plants by installed capacity. Commissioned in 2011, it is around 15 years old — relatively modern. Its annual emissions of 137,957 t CO₂/yr (US EPA GHGRP) are equivalent to about 32k 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).

91Source-backed capacity
116GWh reported / yr
33,228homes powered
137,957t CO₂ / yr (US EPA GHGRP)
2011commissioned (~15 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0056606.

Data status

Known data

FacilityCulbertson Generation Station WRI
CountryUnited States of America · Montana WRI
Coordinates48.21, -104.3917 WRI
FuelGas WRI
MW installed capacity91 MW WRI source record; scope not independently normalised
OwnerBasin Electric Power Coop WRI
Commissioned2011 WRI
TechnologyOCGT WRI
GWh reported / yr116 GWh/yr WRI
CO₂ emissions137,957 t CO₂/yr measured · US EPA GHGRP

Calculated from dataset

Capacity rank in country#2966 of 10938 calculated
Fuel-specific rank in country#1175 of 2165 calculated
Capacity vs country/fuel peers0.75× · 121 MW median · 2165 peers calculated
Homes-powered equivalent33,228 calculated from reported generation
Climate6.4°C · HDD 4,445 derived from coordinates
Environmental severityC1 · 41/100 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.

Capacity provenance

The public capacity above is the current source-record value. A 2026 tracker candidate lists 108 MW for Culbertson generation station, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

Capacity claim grade: A2_MEDIUM_REVIEW - recommended action: manual_source_check - confidence: medium. This follows a claim-based data model: value + scope + source + confidence, rather than silently overwriting records.

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: GEM tracker 2026 (location L100000401737); fuel: WRI source-record fuel

In context: how this plant compares

At 91 MW, Culbertson Generation Station is below the median gas plant in United States of America (121 MW). Technically it is described as OCGT. 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.

137,957 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

32kpassenger cars driven for a year
18khomes' yearly energy use
2.3 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: 128 GWh20132014: 64 GWh20142015: 104 GWh20152016: 96 GWh20162017: 45 GWh20172018: 111 GWh20182019: 116 GWh2019128 GWh

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

Owner

Operated by Basin Electric Power Coop. 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 48.2°N — which shapes how much energy it can produce and how its output varies through the year.

6.4°Cannual mean temp
4,445heating degree-days (base 18°C)
253cooling degree-days (base 18°C)
612 melevation

Monthly mean temperature

J: -12 °CJF: -7 °CFM: 0 °CMA: 8 °CAM: 14 °CMJ: 19 °CJJ: 22 °CJA: 21 °CAS: 15 °CSO: 8 °CON: -2 °CND: -9 °CD22 °C

Heating degree-days here run 81% 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: 90/100 — this site sits in the top 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)
41/100environmental-severity index
33.8°Cseasonal temperature swing
626 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 #1175 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 48.21, -104.3917 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Culbertson Generation Station?

Culbertson Generation Station is a 91 MW source-record gas power plant in Montana, United States of America, commissioned in 2011.

How much electricity does Culbertson Generation Station generate?

Culbertson Generation Station generates about 116 GWh of electricity per year.

How many homes can Culbertson Generation Station power?

Its output is enough to supply roughly 33,228 homes.

Who operates Culbertson Generation Station?

Culbertson Generation Station is operated by Basin Electric Power Coop.

How much CO₂ does Culbertson Generation Station emit?

Culbertson Generation Station has measured emissions of about 137,957 tonnes of CO₂ per year (US EPA GHGRP).

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