secwatch.observer — SEC 8-K summary ====================================== Issuer: Otter Tail Corp (OTTR) CIK: 0001466593 Form: 8-K Filed at: 2023-03-31T23:59:59+00:00 Accession: 0001466593-23-000089 Event type: other_material Sentiment: neutral Materiality: 0.65 Item codes: 8.01 LLM model: deepseek-v4-flash:cloud@v2 Otter Tail Power files supplemental IRP; plans 200 MW solar, 200 MW wind, potential Coyote Station exit -------------------------------------------------------------------------------- - Plans to add ~200 MW solar (2027-2028) and ~200 MW wind (2029) plus LNG storage at Astoria Station in 2026. - Repowering four existing wind facilities in 2024-2025; seeks to create regulatory asset for potential Coyote Station exit. - Potential withdrawal from 35% ownership in Coyote Station coal plant if major non-routine capital needed; estimated costs $68.5M at end-2028. - Filing updates 2022 IRP; cites MISO reserve margins, Inflation Reduction Act tax credits, Minnesota Clean Energy Bill, market volatility. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1466593/000146659323000089/0001466593-23-000089-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1466593/000146659323000089/ottr-20230331.htm HTML page: https://secwatch.observer/filing/0001466593-23-000089 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer