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Twin Cities Hydro LLC

Hydro power plant in Minnesota, United States of America. Approximate location 44.9156, -93.1994.

HydroMinnesotaUnited States of America

Twin Cities Hydro LLC is a 18 MW hydro power plant in Minnesota, United States of America. It is operated by Twin Cities Hydro LLC. Based on reported annual generation of 101 GWh, it can supply roughly 28,828 homes. It ranks #3956 of 9,833 United States of America power plants by installed capacity. Commissioned in 1924, it is around 102 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).

18MW installed capacity
101GWh reported / yr
28,828homes powered
1924commissioned (~102 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0057069.

Reported generation trend

2013: 86 GWh20132014: 103 GWh20142015: 92 GWh20152016: 118 GWh20162017: 108 GWh20172018: 104 GWh20182019: 101 GWh2019118 GWh

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

Owner

Operated by Twin Cities Hydro LLC.

Local climate & thermal context

This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a hot-summer humid continental climate (Köppen Dfa) — Northern Hemisphere, latitude 44.9°N — which shapes how much energy it can produce and how its output varies through the year.

7.1°Cannual mean temp
4,238heating degree-days (base 18°C)
285cooling degree-days (base 18°C)
275 melevation

Monthly mean temperature

J: -11 °CJF: -7 °CFM: 0 °CMA: 8 °CAM: 15 °CMJ: 20 °CJJ: 22 °CJA: 21 °CAS: 16 °CSO: 9 °CON: 0 °CND: -8 °CD22 °C

Heating degree-days here run 72% 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: 87/100 — 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 #500 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 44.9156, -93.1994 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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