About Otter Tail Power Company

We are an investor-owned electric utility that provides electricity for residential, commercial, and industrial customers in Minnesota, North Dakota, and South Dakota.

Who we are

Ownership We are a subsidiary of Otter Tail Corporation, which trades under the symbol OTTR on The NASDAQ Global Select Market.
Headquarters 215 South Cascade Street
Fergus Falls, MN 56537
Total customers 131,200
    Minnesota   61,100
    North Dakota   58,500
    South Dakota   11,600

Approximately 780

Learn about the people of Otter Tail Power Company

Generating capability About 798 MW (owned)
Transmission lines About 5,600 miles
Service area 70,000 square miles
Communities served 422

Service area

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map pin Hydroelectric Station

map pin Coal-fired Power Plant

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Stewardship Report

This biennial report provides an overview of our company and our environmental, social, and economic stewardship.

Stewardship Report releases