Otter Tail Power files 15-year plan to exit coal by 2031, add 345MW solar and 100MW wind

Filed May 15, 2026 · Period ending May 15, 2026 · ~1 min read

Key Changes

• high

  Company will stop serving Minnesota customers with coal power from Coyote Station by December 31, 2031, transitioning the plant to emergency-only status starting June 1, 2026. This marks a complete exit from coal generation for Minnesota operations.

  Item 8.01: IRP Filing verify on EDGAR →
• high

  Near-term renewable buildout includes 50MW Solway Solar (2026), 295MW Abercrombie Solar (2028), 75MW battery storage, and additional wind facilities—representing major capital deployment already approved and underway.

  Item 8.01: IRP Filing verify on EDGAR →
• medium

  Long-term plan adds 100MW of wind capacity split between 2035 (50MW) and 2040 (50MW), plus a 50MW natural gas plant by 2031-2032 to replace retiring coal capacity and meet growing demand.

  Item 8.01: IRP Filing verify on EDGAR →