---
schema_version: "secwatch.filing_event.v1"
accession: "0001466593-24-000064"
form_type: "8-K"
ticker: "OTTR"
cik: "0001466593"
company_name: "Otter Tail Corp"
filed_at: "2024-04-05T23:59:59+00:00"
generated_at: "2026-06-04T01:45:43.348677+00:00"
event_type: "regulatory"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Otter Tail subsidiary reaches settlement on IRP with 200-300 MW solar and 150-200 MW wind additions

## Summary
- Settlement recommends MPUC approve 200-300 MW solar by Nov 2027 and 150-200 MW wind by Dec 2029 for Minnesota customers.
- Proposes operating Coyote Station coal plant as AME resource from March 2026, with costs borne by Minnesota customers.
- Authorizes OTP to begin withdrawing from Minnesota share of Coyote Station if material non-routine capital required.
- File next Minnesota resource plan by May 2026, assuming withdrawal from Coyote Station by Dec 2031.
- Settlement not yet approved by MPUC; other parties have not joined.

## SEC filing metadata
- accession: 0001466593-24-000064
- form_type: 8-K
- ticker: OTTR
- cik: 0001466593
- company_name: Otter Tail Corp
- filed_at: 2024-04-05T23:59:59+00:00
- event_type: regulatory
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1466593/000146659324000064/0001466593-24-000064-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1466593/000146659324000064/ottr-20240402.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001466593-24-000064
- JSON: https://secwatch.observer/filing/0001466593-24-000064.json
- Plain text: https://secwatch.observer/filing/0001466593-24-000064.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.