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Mt Poso Cogeneration

Waste power plant in California, United States of America. Approximate location 35.5763, -119.0062.

WasteCaliforniaUnited States of America

Mt Poso Cogeneration is a 62 MW waste power plant in California, United States of America. It is operated by Mt Poso Cogeneration Co. Based on reported annual generation of 292 GWh, it can supply roughly 83,371 homes. It ranks #2495 of 9,833 United States of America power plants by installed capacity. Commissioned in 1989, it is around 37 years old — long-established. In context, the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

62MW installed capacity
292GWh reported / yr
83,371homes powered
1989commissioned (~37 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0054626.

Reported generation trend

2013: 0 GWh20132014: 0 GWh20142015: 0 GWh20152016: 0 GWh20162017: 0 GWh20172018: 0 GWh20182019: 292 GWh2019292 GWh

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

Owner

Operated by Mt Poso Cogeneration Co.

Local climate & thermal context

This waste plant recovers energy by combusting municipal or industrial waste. It sits in a cold semi-arid steppe climate (Köppen BSk) — Northern Hemisphere, latitude 35.6°N — which shapes how much energy it can produce and how its output varies through the year.

18.6°Cannual mean temp
1,027heating degree-days (base 18°C)
1,258cooling degree-days (base 18°C)
221 melevation

Monthly mean temperature

J: 9 °CJF: 12 °CFM: 14 °CMA: 17 °CAM: 22 °CMJ: 26 °CJJ: 29 °CJA: 28 °CAS: 25 °CSO: 20 °CON: 13 °CND: 9 °CD29 °C

Heating degree-days here run 58% below 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: 26/100 — this site sits in the bottom 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 #40 largest waste power plant of 541 in United States of America by capacity.

United States of America has 541 waste power plants in this dataset, together about 9,768 MW of capacity.

Nearby power plants

Location

Coordinates 35.5763, -119.0062 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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