---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-109638"
form_type: "8-K"
ticker: "DUK"
cik: "0001326160"
company_name: "Duke Energy CORP"
filed_at: "2025-11-12T23:59:59+00:00"
generated_at: "2026-05-16T20:57:16.675783+00:00"
event_type: "regulatory"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Duke Energy Carolinas reaches partial rate case settlement in SC; net annual increase ~$19M (1.0%)

## Summary
- Settled for $74M base revenue increase ($19M net after PTC flow-back; original request $151M).
- ROE set at 9.99% on 53% equity/47% debt; overall rate of return 7.41%.
- Rate base $7.9B; storm reserve funding doubles to $10M; pension cost rider supported.
- $100M in PTCs flowed back to SC customers over 22 months; four-year amortization from 2028.
- Settlement subject to PSCSC approval; hearing starts Nov 13, 2025; rates targeted by March 1, 2026.

## SEC filing metadata
- accession: 0001104659-25-109638
- form_type: 8-K
- ticker: DUK
- cik: 0001326160
- company_name: Duke Energy CORP
- filed_at: 2025-11-12T23:59:59+00:00
- event_type: regulatory
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1326160/000110465925109638/0001104659-25-109638-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/30371/000110465925109638/tm2530955d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-109638
- JSON: https://secwatch.observer/filing/0001104659-25-109638.json
- Plain text: https://secwatch.observer/filing/0001104659-25-109638.txt

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