---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-24-064251"
form_type: "8-K"
ticker: "NSARO"
cik: "0000013372"
company_name: "NSTAR ELECTRIC CO"
filed_at: "2024-05-22T23:59:59+00:00"
generated_at: "2026-06-01T09:40:32.703825+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# NSTAR Electric issues $600M of 5.40% debentures due 2034

## Summary
- Issued $600M aggregate principal of 5.40% Debentures due June 1, 2034; interest payable semi-annually.
- Underwriters include BofA Securities, Mizuho, PNC Capital Markets, RBC Capital Markets, Wells Fargo Securities.
- Debentures issued under indenture dated 1988 with Bank of New York Mellon as trustee.
- Interest accrues from May 22, 2024, computed on 30/360 basis; first payment Dec 1, 2024.
- Registered under SEC Form S-3 (File No. 333-264278-02).

## SEC filing metadata
- accession: 0001104659-24-064251
- form_type: 8-K
- ticker: NSARO
- cik: 0000013372
- company_name: NSTAR ELECTRIC CO
- filed_at: 2024-05-22T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/13372/000110465924064251/0001104659-24-064251-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/13372/000110465924064251/tm2415145d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-24-064251
- JSON: https://secwatch.observer/filing/0001104659-24-064251.json
- Plain text: https://secwatch.observer/filing/0001104659-24-064251.txt

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