Otter Tail Corporation, together with its subsidiaries, engages in electric utility, manufacturing, and plastic pipe businesses in the United States. It operates through three segments: Electric, Manufacturing, and Plastics. The Electric segment produces, transmits, distributes, and sells electric energy in Minnesota, North Dakota, and South Dakota; and operates as a participant in the Midcontinent Independent System Operator markets. This segment generates electricity through coal, fuel oil, solar, wind, and natural gas.
