v3.26.1
SHORT-TERM AND LONG-TERM DEBT (Tables)
 6 Months Ended
Jun. 30, 2026
Debt Disclosure [Abstract]  
Schedule of Borrowings Outstanding
The amount of borrowings outstanding and available under the commercial paper programs were as follows:
Borrowings Outstanding as ofAvailable Borrowing Capacity as ofWeighted-Average Interest Rate as of
June 30, 2026December 31, 2025June 30, 2026December 31, 2025June 30, 2026December 31, 2025
(Millions of Dollars)
Eversource Parent Commercial Paper Program $432.0 $1,280.0 $1,568.0 $720.0 4.00 %3.98 %
NSTAR Electric Commercial Paper Program 63.0 245.4 587.0 404.6 3.87 %3.87 %
Schedule of Long-Term Debt Issuance and Repayments The following table summarizes long-term debt issuances and repayments:
(Millions of Dollars)Interest RateIssuance/(Repayment)Issue Date or Repayment DateMaturity DateUse of Proceeds for Issuance/
Repayment Information
NSTAR Electric Debentures4.65 %$350.0 May 2026May 2031
Repaid 2.70% Debentures at maturity, repaid Series H Senior Notes at maturity, repaid short-term debt, paid capital expenditures and working capital
NSTAR Electric Debentures5.20 %350.0 May 2026May 2036
Repaid 2.70% Debentures at maturity, repaid Series H Senior Notes at maturity, repaid short-term debt, paid capital expenditures and working capital
NSTAR Electric Debentures2.70 %(250.0)June 2026June 2026Paid at maturity
NSTAR Electric Series H Senior Notes2.75 %(50.0)June 2026June 2026Paid at maturity
PSNH Series X First Mortgage Bonds5.35 %200.0 June 2026October 2033Repaid short-term debt, paid capital expenditures and working capital
Eversource Parent Series A Junior Notes (1)
6.10 %750.0 February 2026August 2056Repaid Series AA Senior Notes at maturity, repay Series U Senior Notes at maturity, repaid short-term debt, and for general corporate purposes
Eversource Parent Series B Junior Notes (2)
6.35 %750.0 February 2026August 2056Repaid Series AA Senior Notes at maturity, repay Series U Senior Notes at maturity, repaid short-term debt, and for general corporate purposes
Eversource Parent Series J Senior Notes3.35 %(250.0)March 2026March 2026Paid at maturity
Eversource Parent Series AA Senior Notes4.75 %(450.0)May 2026May 2026Paid at maturity
Yankee Gas Series AA First Mortgage Bonds5.22 %75.0 July 2026July 2031Refinance existing indebtedness, fund capital expenditures, and for general corporate purposes
Yankee Gas Series BB First Mortgage Bonds5.61 %100.0 July 2026July 2036Refinance existing indebtedness, fund capital expenditures, and for general corporate purposes
EGMA Series G First Mortgage Bonds5.12 %100.0 July 2026July 2031Refinance existing indebtedness, fund capital expenditures, and for general corporate purposes

(1)    The Eversource Parent Series A Junior Subordinated Notes bear interest at a fixed rate of 6.10 percent per year from the issuance date of February 26, 2026 to August 14, 2031. Thereafter, the interest rate resets every five years, commencing on August 15, 2031, at a rate per year equal to the five-year U.S. Treasury Rate plus a spread of 2.521 percent.

(2)     The Eversource Parent Series B Junior Subordinated Notes bear interest at a fixed rate of 6.35 percent per year from the issuance date of February 26, 2026 to August 14, 2036. Thereafter, the interest rate resets every five years, commencing on August 15, 2036, at a rate per year equal to the five-year U.S. Treasury Rate plus a spread of 2.325 percent.