---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-103521"
form_type: "8-K"
ticker: "NSARO"
cik: "0000013372"
company_name: "NSTAR ELECTRIC CO"
filed_at: "2023-09-25T23:59:59+00:00"
generated_at: "2026-06-10T09:09:41.048127+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# NSTAR Electric issues $150M of 5.60% debentures due 2028

## Summary
- $150M aggregate principal, 5.60% interest payable semi-annually.
- Debentures mature October 1, 2028; interest accrues from September 25, 2023.
- Issued under underwriting agreement dated September 18, 2023 with BofA, Goldman, PNC, RBC, TD Securities.
- Registered under Form S-3 (File No. 333-264278-02); indenture with Bank of New York Mellon Trust.

## SEC filing metadata
- accession: 0001104659-23-103521
- form_type: 8-K
- ticker: NSARO
- cik: 0000013372
- company_name: NSTAR ELECTRIC CO
- filed_at: 2023-09-25T23:59:59+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/13372/000110465923103521/0001104659-23-103521-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/13372/000110465923103521/tm2326748d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-103521
- JSON: https://secwatch.observer/filing/0001104659-23-103521.json
- Plain text: https://secwatch.observer/filing/0001104659-23-103521.txt

## Key facts
- Debt Financings
  NSTAR ELECTRIC CO incurred senior notes of $150,000,000 aggregate principal amount with BofA Securities, Inc., Goldman Sachs & Co. LLC, PNC Capital Markets LLC, RBC Capital Markets, LLC and TD Securities (USA) LLC at 5.60% maturing October 1, 2028.
  - Instrument: senior notes
  - Principal: $150,000,000 aggregate principal amount
  - Counterparty: BofA Securities, Inc., Goldman Sachs & Co. LLC, PNC Capital Markets LLC, RBC Capital Markets, LLC and TD Securities (USA) LLC
  - Rate: 5.60%
  - Maturity: October 1, 2028
  - Event: incurrence
  source text: On September 25, 2023, NSTAR Electric Company, doing business as Eversource Energy (“NSTAR Electric”), issued $150,000,000 aggregate principal amount of its 5.60% Debentures due 2028 (“Debentures”)
  evidence_url: https://www.sec.gov/Archives/edgar/data/13372/000110465923103521/0001104659-23-103521-index.htm

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