Owner profile

Otter Tail Power Co

Otter Tail Power Co owns or operates 14 generating facilities commissioned between 1914 and 2023, with a combined nameplate capacity of 1.78 GW. The largest share of capacity is coal (51%), spread across 3 states.

Ownership reflects the utility or operator reported to EIA (Form EIA-860); equity ownership of individual facilities may differ.

14
Plants
1.78 GW
Total capacity
3
States
451 MW
Largest: Big Stone

Capacity mix

Coal 50.7%Natural Gas 22.5%Wind 19.7%Oil 4.2%Solar 2.8%Hydroelectric 0.1%

By state

Minnesota4 · 104.2 MWNorth Dakota7 · 848.6 MWSouth Dakota3 · 824.1 MW

Operating plants

PlantFuelStateOwnerCapacity
Big StoneCoalSouth DakotaOtter Tail Power Co451 MW
CoyoteCoalNorth DakotaOtter Tail Power Co450 MW
Astoria StationNatural GasSouth DakotaOtter Tail Power Co349 MW
Merricourt Wind Energy CenterWindNorth DakotaOtter Tail Power Co150 MW
Ashtabula Wind III LLCWindNorth DakotaOtter Tail Power Co62.4 MW
Solway CTNatural GasMinnesotaOtter Tail Power Co51.3 MW
Hoot Lake SolarSolarMinnesotaOtter Tail Power Co49.9 MW
Luverne Wind Energy CenterWindNorth DakotaOtter Tail Power Co49.5 MW
JamestownOilNorth DakotaOtter Tail Power Co48.2 MW
Ashtabula Wind Energy CenterWindNorth DakotaOtter Tail Power Co48 MW
Langdon Wind Energy CenterWindNorth DakotaOtter Tail Power Co40.5 MW
Lake PrestonOilSouth DakotaOtter Tail Power Co24.1 MW
Hoot LakeHydroelectricMinnesotaOtter Tail Power Co1 MW
Retired plants (1)
PlantFuelStateOwnerCapacity
Fergus Control Ctrretired 2019OilMinnesotaOtter Tail Power Co2 MW