---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-094252"
form_type: "8-K"
ticker: "DUK"
cik: "0001326160"
company_name: "Duke Energy CORP"
filed_at: "2023-08-22T23:59:59+00:00"
generated_at: "2026-06-11T05:25:03.045620+00:00"
event_type: "regulatory"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Duke Energy Carolinas reaches partial rate case settlement; expects $30-40M pre-tax Q3 charge

## Summary
- Partial stipulation with NC Public Staff on rate base, MYRP capital ($4.6B), depreciation, and GIP cost recovery.
- Agreed historic rate base of ~$19.5B; total revenue increase request after stipulation is $824M over 3 years (15.7% cumulative).
- Grid Improvement Plan deferred costs to be recovered over 18 yrs with debt return during deferral, full WACC return during amortization.
- Unresolved issues include ROE, capital structure, COVID-19 cost recovery, and storm balancing account; hearing starts Aug 28, 2023.
- Duke Energy Plaza capital costs reduced by $50M; one-time charge of $30–40M related to updated coal plant retirement dates.

## SEC filing metadata
- accession: 0001104659-23-094252
- form_type: 8-K
- ticker: DUK
- cik: 0001326160
- company_name: Duke Energy CORP
- filed_at: 2023-08-22T23:59:59+00:00
- event_type: regulatory
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1326160/000110465923094252/0001104659-23-094252-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/30371/000110465923094252/tm2324299d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-094252
- JSON: https://secwatch.observer/filing/0001104659-23-094252.json
- Plain text: https://secwatch.observer/filing/0001104659-23-094252.txt

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