NASDAQ: OTTR Otter Tail Corp 8-K

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

4 material changes detected in this filing.

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Generated by AI · Jun 1, 2026 3:53 PM