Madison, United States
East River Electric is a member-owned cooperative that delivers wholesale power to 24 rural electric distribution cooperatives and one municipally-owned electric system in eastern South Dakota and western Minnesota. The company's service territory covers 22,222 square miles across 23 counties in Eastern South Dakota and 12 counties in Western Minnesota, serving 138,889 member-owners. East River operates with a power supply mix that includes 40% wind, hydropower, and solar energy. The cooperative was established as part of the nation's largest electric utility network during the 1930s to provide electricity to rural America. In 2020, East River generated approximately 576 GWh of renewable energy, contributing significantly to its commitment to sustainable practices.
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