Bennett Mountain

Gas power plant in Idaho, United States of America. Approximate location 43.1472, -115.6666.

GasIdahoUnited States of AmericaCO₂ reported

Bennett Mountain is a 173 MW gas power station in Idaho, United States of America. It is operated by Idaho Power Co. Based on reported annual generation of 318 GWh, it can supply roughly 90,828 homes. It ranks #1396 of 9,833 United States of America power plants by installed capacity. Commissioned in 2005, it is around 21 years old — relatively modern. Its measured emissions of 407,421 t CO₂/yr (US EPA GHGRP) are equivalent to about 94,970 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).

173MW installed capacity
318GWh reported / yr
90,828homes powered
407,421t CO₂ / yr (US EPA GHGRP)
2005commissioned (~21 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0055733.

407,421 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

94,970passenger cars driven for a year
53,133homes' yearly energy use
6,790,350tree seedlings grown 10 years to absorb it

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

Reported generation trend

2013: 80 GWh20132014: 70 GWh20142015: 158 GWh20152016: 103 GWh20162017: 86 GWh20172018: 149 GWh20182019: 318 GWh2019318 GWh

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

Owner

Operated by Idaho Power Co. 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 hot-summer Mediterranean climate (Köppen Csa) — Northern Hemisphere, latitude 43.1°N — which shapes how much energy it can produce and how its output varies through the year.

10.3°Cannual mean temp
3,108heating degree-days (base 18°C)
328cooling degree-days (base 18°C)
989 melevation

Monthly mean temperature

J: -1 °CJF: 2 °CFM: 5 °CMA: 9 °CAM: 14 °CMJ: 19 °CJJ: 23 °CJA: 23 °CAS: 17 °CSO: 11 °CON: 4 °CND: -1 °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: 66/100 — 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.

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.

How it compares & nearby plants

The #727 largest gas power plant of 1818 in United States of America by capacity.

United States of America has 1818 gas power plants in this dataset, together about 546,436 MW of capacity.

Nearby power plants

Location

Coordinates 43.1472, -115.6666 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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