---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-126586"
form_type: "8-K"
ticker: "DUK"
cik: "0001326160"
company_name: "Duke Energy CORP"
filed_at: "2023-12-18T23:59:59+00:00"
generated_at: "2026-06-07T11:13:10.047521+00:00"
event_type: "regulatory"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Duke Energy Carolinas receives NCUC order approving ~$768M 3-year rate increase, 10.1% ROE

## Summary
- NCUC approved 10.1% ROE (up from 9.6%) on 53% equity capital structure.
- Total revised incremental annual revenue requirement of $768M over three years (Year 1: $313M, Year 2: $174M, Year 3: $159M).
- Cumulative net annualized customer rate increase of 14.6% over the 3-year multi-year rate plan.
- Grid Improvement Plan deferred costs recovered over 18 years with full WACC return during amortization.
- Nuclear PTC benefits flowed to customers: $50M in 2025 and $100M in 2026 via standalone rider.

## SEC filing metadata
- accession: 0001104659-23-126586
- form_type: 8-K
- ticker: DUK
- cik: 0001326160
- company_name: Duke Energy CORP
- filed_at: 2023-12-18T23:59:59+00:00
- event_type: regulatory
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1326160/000110465923126586/0001104659-23-126586-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/30371/000110465923126586/tm2333093d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-126586
- JSON: https://secwatch.observer/filing/0001104659-23-126586.json
- Plain text: https://secwatch.observer/filing/0001104659-23-126586.txt

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