Twin Falls (WI) — United States of America

Hydro power plant in Michigan, United States of America. Approximate location 45.8728, -88.0708.

HydroMichiganUnited States of America

Twin Falls (WI) is a 9.2 MW hydro power plant in Michigan, United States of America. It is operated by Wisconsin Electric Power Co. Based on reported annual generation of 48 GWh, it can supply roughly 14k homes. It ranks #5829 of 10,884 United States of America power plants by installed capacity. Commissioned in 2016, it is around 10 years old — relatively modern. 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).

9.2MW installed capacity
48GWh reported / yr
13,828homes powered
2016commissioned (~10 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0059836.

Data status

Known data

FacilityTwin Falls (WI) WRI
CountryUnited States of America · Michigan WRI
Coordinates45.8728, -88.0708 WRI
FuelHydro WRI
MW installed capacity9.2 MW Wikidata P2109; installed/nameplate capacity
Verification noteQuality label backfilled from existing source-backed capacity provenance on 2026-07-05; capacity value was not changed. source-verified
OwnerWisconsin Electric Power Co WRI
Commissioned2016 WRI
GWh reported / yr48 GWh·a⁻¹ WRI

Calculated from dataset

Capacity rank in country#5829 / 10884 calculated
Fuel-specific rank in country#670 / 1449 calculated
Capacity vs country/fuel peers1.15× · 8 MW · n=1449 calculated
Homes-powered equivalent13,828 calculated from reported generation
Climate5.3°C · HDD 4,688 derived from coordinates
Environmental severityC2 · 34/100 derived from coordinates

Not available

TechnologyNot available not in dataset
CO₂ emissionsnot applicable not applicable

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

Source of the capacity and fuel values:

capacity: Wikidata P2109; fuel: WRI GPPD

In context: how this plant compares

At 9.2 MW, Twin Falls (WI) is well above the median hydro plant in United States of America (8 MW). Hydropower converts the energy of falling or flowing water into electricity; output depends on rainfall and reservoir level, and large dams also provide grid balancing and storage.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

Key facts

Load factor
60%, from 48 GWh of reported generation; the median for 1342 hydro plants in United States of America that report generation is 42%
Generation trend
17 GWh in 2016 and 48 GWh in 2019 (+185%)
Highest and lowest year
2017: 54 GWh; 2016: 17 GWh
Share of United States of America hydro capacity
less than 0.1% of 102,513 MW across 1,449 plants in this dataset
Age among peers
1,430 of 1,444 dated hydro plants in United States of America are older

Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).

Reported generation trend

2016: 17 GWh20162017: 54 GWh20172018: 43 GWh20182019: 48 GWh201954 GWh

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

Local climate & thermal context

This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 45.9°N — which shapes how much energy it can produce and how its output varies through the year.

5.3°Cannual mean temp
4,688heating degree-days (base 18°C)
63cooling degree-days (base 18°C)
301 melevation

Monthly mean temperature

J: -11 °CJF: -9 °CFM: -3 °CMA: 4 °CAM: 12 °CMJ: 17 °CJJ: 20 °CJA: 18 °CAS: 14 °CSO: 8 °CON: 0 °CND: -7 °CD20 °C

Heating degree-days here run 91% 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: 92/100 — this site sits in the top third of the power plants we cover by heating degree-days.

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.

Site climate & environmental severity

This site sits in a mild atmospheric environment (estimated ISO 9223 class C2 — Low), with thermal cycling the leading environmental stress.

C2ISO 9223 corrosivity (indicative)
34/100environmental-severity index
30.3°Cseasonal temperature swing
123 kmdistance to coast

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby plants

The #670 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 102,513 MW of capacity.

Nearby power plants

Location

Coordinates 45.8728, -88.0708 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Twin Falls (WI)?

Twin Falls (WI) is a 9.2 MW hydro power plant in Michigan, United States of America, commissioned in 2016.

How much electricity does Twin Falls (WI) generate?

Twin Falls (WI) generates about 48 GWh of electricity per year.

Who operates Twin Falls (WI)?

Twin Falls (WI) is operated by Wisconsin Electric Power Co.

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