secwatch.observer — SEC 8-K summary
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Issuer:     Otter Tail Corp (OTTR)
CIK:        0001466593
Form:       8-K
Filed at:   2025-06-05T23:59:59+00:00
Accession:  0001466593-25-000091
Event type: regulatory
Sentiment:  neutral
Materiality: 0.55
Item codes: 8.01
LLM model:  deepseek-v4-flash:cloud@v2

Otter Tail Power files $5.7M annual revenue increase request with South Dakota PUC
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- Requested net annual revenue increase of $5.7M (12.5%) from South Dakota general rates, filed June 4, 2025.
- Proposed rate of return on rate base 8.29%, ROE 10.8%, equity ratio 53.54% of total capital.
- Changes include moving cost/investment recovery from riders into base rates.
- Rates effective upon SDPUC final disposition or 180 days from filing, subject to refunds.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1466593/000146659325000091/0001466593-25-000091-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1466593/000146659325000091/ottr-20250604.htm
  HTML page:      https://secwatch.observer/filing/0001466593-25-000091

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer