OREG 1 Inc

Cogeneration power plant in Montana, United States of America. Approximate location 48.2139, -104.3975.

CogenerationMontanaUnited States of AmericaCO₂ reported

OREG 1 Inc is a 30 MW cogeneration power plant in Montana, United States of America. It is operated by Ormat Nevada Inc. Based on reported annual generation of 156 GWh, it can supply roughly 44,714 homes. It ranks #3294 of 9,833 United States of America power plants by installed capacity. Commissioned in 2006, it is around 20 years old — relatively modern. Its measured emissions of 28,731 t CO₂/yr (Climate TRACE) are equivalent to about 6,697 cars driven for a year. In context, the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

30MW installed capacity
156GWh reported / yr
44,714homes powered
28,731t CO₂ / yr (Climate TRACE)
2006commissioned (~20 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0056833.

28,731 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

6,697passenger cars driven for a year
3,747homes' yearly energy use
478,850tree seedlings grown 10 years to absorb it

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

Reported generation trend

2013: 173 GWh20132014: 132 GWh20142015: 152 GWh20152016: 153 GWh20162017: 166 GWh20172018: 164 GWh20182019: 156 GWh2019173 GWh

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

Owner

Operated by Ormat Nevada Inc. All plants by this company →

Local climate & thermal context

This cogeneration plant produces electricity and useful heat together for higher fuel efficiency. 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.

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 #15 largest cogeneration power plant of 34 in United States of America by capacity.

United States of America has 34 cogeneration power plants in this dataset, together about 1,042 MW of capacity.

Nearby power plants

Location

Coordinates 48.2139, -104.3975 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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