The hydroelectric plants we own are some of the oldest generators on our systems, continuing to provide customers with reliable power after many decades of operations. We have 26 plants with a combined capacity of more than 370 megawatts. Located in Colorado, Minnesota and Wisconsin, the plants contribute clean, low-cost power as part of our diverse mix of energy sources.
It begins with a forceful, rushing river or with a dam that holds back a river and diverts flow. Falling water flows through propeller-like turbines and causes them to rotate. The rotation of these turbines spins generators to produce electricity. The amount of electricity generated from each unit is determined largely by volume of water flow and "head," or the height from the water surface at the dam reservoir to the water surface downstream.
While the fuel is free and hydroelectric power produces no air emissions or waste, its use is limited because of the natural hydrological conditions it requires. There also can be ecological concerns, such as the impact on fish and other wildlife. We manage our dam operations to protect the aquatic environment, and at some facilities, improve recreational opportunities.
Safety will always be a priority for us and our customers. We have compiled resources such as dam precautions, procedures and other resources for those customers who may live or work near dams or flowing water.
Ames Hydro Plant Facts
Apple River Hydro Plant Facts
Cabin Creek Hydro Plant Facts
Cedar Falls Hydro Plant Facts
Georgetown Hydro Plant Facts
Hennepin Island Hydro Plant Facts
Menomonie Hydro Plant Facts
Riverdale Hydro Plant Facts
Salida Hydro Plant Facts
Shoshone Hydro Plant Facts
St. Croix Falls Hydro Plant Facts
Tacoma Hydro Plant Facts
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