---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-070990"
form_type: "8-K"
ticker: null
cik: "0000030371"
company_name: "Duke Energy Carolinas, LLC"
filed_at: "2026-06-05T20:21:11+00:00"
generated_at: "2026-06-05T20:33:51.506578+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Duke Energy Carolinas issues $2.4B in mortgage bonds across three tranches

## Summary
- $400M of 4.65% bonds due 2031; $1B of 5.15% bonds due 2036; $1B of 5.75% bonds due 2056.
- Bonds issued under First & Refunding Mortgage; underwriting agreement dated June 2, 2026.
- Sale consummated June 5, 2026; underwriters purchased at discounts (99.279%, 99.340%, 98.881%).
- Company also pays $4.25M expense reimbursement to underwriters.

## SEC filing metadata
- accession: 0001104659-26-070990
- form_type: 8-K
- cik: 0000030371
- company_name: Duke Energy Carolinas, LLC
- filed_at: 2026-06-05T20:21:11+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/30371/000110465926070990/0001104659-26-070990-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/30371/000110465926070990/tm2615837d4_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-070990
- JSON: https://secwatch.observer/filing/0001104659-26-070990.json
- Plain text: https://secwatch.observer/filing/0001104659-26-070990.txt

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