Morony

Hydro power plant in Montana, United States of America. Approximate location 47.5817, -111.0609.

HydroMontanaUnited States of America

Morony is a 63 MW hydro power plant in Montana, United States of America. It is operated by NorthWestern Energy. Based on reported annual generation of 319 GWh, it can supply roughly 91,057 homes. It ranks #2483 of 9,833 United States of America power plants by installed capacity. Commissioned in 1930, it is around 96 years old — an older, legacy facility. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 5.3% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

63MW installed capacity
319GWh reported / yr
91,057homes powered
1930commissioned (~96 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0002191.

Reported generation trend

2013: 225 GWh20132014: 255 GWh20142015: 247 GWh20152016: 259 GWh20162017: 290 GWh20172018: 324 GWh20182019: 319 GWh2019324 GWh

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

Owner

Operated by NorthWestern Energy. All plants by this company →

Local climate & thermal context

This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a cold semi-arid steppe climate (Köppen BSk) — Northern Hemisphere, latitude 47.6°N — which shapes how much energy it can produce and how its output varies through the year.

7.1°Cannual mean temp
4,053heating degree-days (base 18°C)
80cooling degree-days (base 18°C)
1,137 melevation

Monthly mean temperature

J: -5 °CJF: -2 °CFM: 1 °CMA: 6 °CAM: 11 °CMJ: 16 °CJJ: 19 °CJA: 19 °CAS: 14 °CSO: 8 °CON: 1 °CND: -3 °CD19 °C

Heating degree-days here run 65% 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: 85/100 — 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 #261 largest hydro power plant of 1449 in United States of America by capacity.

United States of America has 1449 hydro power plants in this dataset, together about 101,657 MW of capacity.

Nearby power plants

Location

Coordinates 47.5817, -111.0609 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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