We are an investor-owned electric utility that produces and delivers electricity to more than 131,000 customers. Our service ... area spans 70,000 square miles in Minnesota, North Dakota, and South Dakota. Our commitment is to environmental, economic, and community stewardship. With hometown understanding of the people and places we serve, we carefully balance each decision we make with the impact it has on our friends and neighbors. We're a subsidiary of Otter Tail Corporation (NASDAQ: OTTR) and are headquartered in Fergus Falls, Minnesota. read more