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Terra-Gen Dixie Valley

Geothermal power plant in Nevada, United States of America. Approximate location 39.9663, -117.8557.

GeothermalNevadaUnited States of America

Terra-Gen Dixie Valley is a 71 MW geothermal power plant in Nevada, United States of America. It is operated by Terra-Gen Operating Co-Geo. Based on reported annual generation of 492 GWh, it can supply roughly 140,485 homes. It ranks #2378 of 9,833 United States of America power plants by installed capacity. Commissioned in 1990, it is around 36 years old — long-established. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, geothermal supplies about 0.4% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

71MW installed capacity
492GWh reported / yr
140,485homes powered
1990commissioned (~36 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0052015.

Reported generation trend

2013: 497 GWh20132014: 488 GWh20142015: 465 GWh20152016: 495 GWh20162017: 0 GWh20172018: 496 GWh20182019: 492 GWh2019497 GWh

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

Owner

Operated by Terra-Gen Operating Co-Geo. All plants by this company →

Local climate & thermal context

This geothermal plant taps underground heat to raise steam that drives a turbine. It sits in a cold semi-arid steppe climate (Köppen BSk) — Northern Hemisphere, latitude 40.0°N — which shapes how much energy it can produce and how its output varies through the year.

11.6°Cannual mean temp
2,789heating degree-days (base 18°C)
464cooling degree-days (base 18°C)
1,145 melevation

Monthly mean temperature

J: -1 °CJF: 3 °CFM: 6 °CMA: 10 °CAM: 14 °CMJ: 20 °CJJ: 24 °CJA: 24 °CAS: 19 °CSO: 13 °CON: 6 °CND: 0 °CD24 °C

Heating degree-days here run 13% 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: 57/100 — 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.

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 #14 largest geothermal power plant of 65 in United States of America by capacity.

United States of America has 65 geothermal power plants in this dataset, together about 3,889 MW of capacity.

Nearby power plants

Location

Coordinates 39.9663, -117.8557 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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