MPUC approves Otter Tail IRP; orders 200-300MW solar by 2027, coal phase-out by 2031

Otter Tail Corp

MPUC directed Otter Tail Power to procure 200-300MW solar by Nov 2027, 150-200MW wind by Dec 2029, and 20-75MW battery storage by Dec 2029.
Approved on-site LNG storage at Astoria Station by 2027, subject to North Dakota approval.
Designate Minnesota share of Coyote Station coal plant as AME resource from June 2026 to no later than Dec 2031; if not feasible, stop after 2028.
Otter Tail must cease serving Minnesota customers with Coyote Station capacity or energy by December 31, 2031.
Next IRP due May 2026; will include analysis of Big Stone Plant continued operation with AME.

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