---
schema_version: "secwatch.filing_event.v1"
accession: "0001326160-25-000013"
form_type: "8-K"
ticker: "DUK"
cik: "0001326160"
company_name: "Duke Energy CORP"
filed_at: "2025-02-03T23:59:59+00:00"
generated_at: "2026-05-27T03:55:38.334187+00:00"
event_type: "regulatory"
sentiment: "negative"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Duke Energy Indiana rate case approved at $296M revenue increase vs requested $492M

## Summary
- Approved $296M revenue increase (16.2% requested) with 9.75% ROE versus requested 10.5%.
- Step 1 rates effective March 2025; Step 2 in March 2026 retroactive to January 2026.
- Rate base approved $12.0B as of June 2024 and $12.5B as of December 2025.
- Reduction from $492M request primarily due to lower ROE and depreciation adjustments.

## SEC filing metadata
- accession: 0001326160-25-000013
- form_type: 8-K
- ticker: DUK
- cik: 0001326160
- company_name: Duke Energy CORP
- filed_at: 2025-02-03T23:59:59+00:00
- event_type: regulatory
- sentiment: negative
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1326160/000132616025000013/0001326160-25-000013-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/81020/000132616025000013/duk-20250129.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001326160-25-000013
- JSON: https://secwatch.observer/filing/0001326160-25-000013.json
- Plain text: https://secwatch.observer/filing/0001326160-25-000013.txt

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