Gas power plant in Oregon, United States of America. Approximate location 45.8042, -119.37.
GasOregonUnited States of AmericaCO₂ reported
Hermiston Generating Plant is a 621 MW gas power station in Oregon, United States of America. It is operated by Hermiston Generating Co LP. Based on reported annual generation of 2,863 GWh, it can supply roughly 817,885 homes. It ranks #588 of 9,833 United States of America power plants by installed capacity. Commissioned in 1996, it is around 30 years old — long-established. Its measured emissions of 1,199,069 t CO₂/yr (US EPA GHGRP) are equivalent to about 279,503 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).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0054761.
This facility's annual emissions are roughly equivalent to:
Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions reported to US EPA GHGRP.
Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).
Operated by Hermiston Generating Co LP.
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 45.8°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 7% 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: 53/100 — 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.
The #332 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.
Coordinates 45.8042, -119.37 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
