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SHORT-TERM AND LONG-TERM DEBT | 6 Months Ended
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Jun. 30, 2025
Debt Disclosure [Abstract] |
SHORT-TERM AND LONG-TERM DEBT | SHORT-TERM AND LONG-TERM DEBT Short-Term Debt - Commercial Paper Programs and Credit Agreements: Eversource parent has a $2.00 billion commercial paper program allowing Eversource parent to issue commercial paper as a form of short-term debt. Eversource parent, CL&P, PSNH, NSTAR Gas, Yankee Gas, EGMA and Aquarion Water Company of Connecticut are parties to a five-year $2.00 billion revolving credit facility, which terminates on October 11, 2029. This revolving credit facility serves to backstop Eversource parent's $2.00 billion commercial paper program. NSTAR Electric has a $650.0 million commercial paper program allowing NSTAR Electric to issue commercial paper as a form of short-term debt. NSTAR Electric is also a party to a five-year $650.0 million revolving credit facility, which terminates on October 11, 2029, that serves to backstop NSTAR Electric's $650.0 million commercial paper program. The amount of borrowings outstanding and available under the commercial paper programs were as follows:
| Borrowings Outstanding as of |  | Available Borrowing Capacity as of |  | Weighted-Average Interest Rate as of
| June 30, 2025 |  | December 31, 2024 |  | June 30, 2025 |  | December 31, 2024 |  | June 30, 2025 |  | December 31, 2024
(Millions of Dollars) |  |  |  |  |
Eversource Parent Commercial Paper Program | $ | 950.5 |  |  | $ | 1,538.0 |  |  | $ | 1,049.5 |  |  | $ | 462.0 |  |  | 4.78 | % |  | 4.76 | %
NSTAR Electric Commercial Paper Program | 430.0 |  |  | 504.8 |  |  | 220.0 |  |  | 145.2 |  |  | 4.57 | % |  | 4.55 | %
There were no borrowings outstanding on the revolving credit facilities as of June 30, 2025 and December 31, 2024. CL&P and PSNH have uncommitted line of credit agreements totaling $375 million and $250 million, respectively, all of which will expire in either September 2025, October 2025 or May 2026. There are no borrowings outstanding on either the CL&P or PSNH uncommitted line of credit agreements as of June 30, 2025 and December 31, 2024. Amounts outstanding under the commercial paper programs are included in Notes Payable and classified in current liabilities on the Eversource and NSTAR Electric balance sheets, as all borrowings are outstanding for no more than 364 days at one time. As a result of the Yankee Gas long-term debt issuances in July 2025, $110.0 million of commercial paper borrowings under the Eversource parent commercial paper program were reclassified to Long-Term Debt on Eversource parent’s balance sheet as of June 30, 2025. Intercompany Borrowings: Eversource parent uses its available capital resources to provide loans to its subsidiaries to assist in meeting their short-term borrowing needs. Eversource parent records intercompany interest income from its loans to subsidiaries, which is eliminated in consolidation. Intercompany loans from Eversource parent to its subsidiaries are eliminated in consolidation on Eversource's balance sheets. As of June 30, 2025 and December 31, 2024, there were intercompany loans from Eversource parent to PSNH of $35.3 million and $131.1 million, respectively. As of December 31, 2024, there were intercompany loans from Eversource parent to CL&P of $280.0 million. Eversource parent charges interest on these intercompany loans at the same weighted-average interest rate as its commercial paper program. Intercompany loans from Eversource parent are included in Notes Payable to Eversource Parent and classified in current liabilities on the respective subsidiary's balance sheets, as these intercompany borrowings are outstanding for no more than 364 days at one time. Sources and Uses of Cash: The Company expects the future operating cash flows of Eversource, CL&P, NSTAR Electric and PSNH, along with existing borrowing availability and access to both debt and equity markets, will be sufficient to meet any working capital and future operating requirements, and capital investment forecasted opportunities. Long-Term Debt Issuance Authorizations: On March 26, 2025, PURA approved Yankee Gas’ request for authorization to issue up to $360.0 million in long-term debt through December 31, 2026. On May 27, 2025, NHPUC approved PSNH’s request for authorization to issue up to $300.0 million in long-term debt through December 31, 2025. Long-Term Debt Issuances and Repayments: The following table summarizes long-term debt issuances and repayments:
(Millions of Dollars) | Interest Rate |  | Issuance/(Repayment) |  | Issue Date or Repayment Date |  | Maturity Date |  | Use of Proceeds for Issuance/ Repayment Information
CL&P Series A First Mortgage Bonds | 4.95 | % |  | $ | 400.0 |  |  | January 2025 |  | January 2030 |  | Repaid short-term debt, paid capital expenditures and working capital
NSTAR Electric Debentures | 4.85 | % |  | 400.0 |  |  | February 2025 |  | March 2030 |  | Repay 3.25% Debentures at maturity, repaid short-term debt, paid capital expenditures and working capital
NSTAR Electric Debentures | 5.20 | % |  | 400.0 |  |  | February 2025 |  | March 2035 |  | Repay 3.25% Debentures at maturity, repaid short-term debt, paid capital expenditures and working capital
PSNH Series Y First Mortgage Bonds | 4.40 | % |  | 300.0 |  |  | June 2025 |  | July 2028 |  | Repaid short-term debt, paid capital expenditures and working capital
Eversource Parent Series H Senior Notes | 3.15 | % |  | (300.0) |  |  | January 2025 |  | January 2025 |  | Paid at maturity
NSTAR Gas Series Y First Mortgage Bonds | 4.86 | % |  | 205.0 |  |  | June 2025 |  | June 2030 |  | Repaid short-term debt, paid capital expenditures and working capital
NSTAR Gas Series Z First Mortgage Bonds | 5.30 | % |  | 20.0 |  |  | June 2025 |  | June 2035 |  | Repaid short-term debt, paid capital expenditures and working capital
NSTAR Gas Series R First Mortgage Bonds | 2.33 | % |  | (75.0) |  |  | May 2025 |  | May 2025 |  | Paid at maturity
Yankee Gas Series Y First Mortgage Bonds | 5.02 | % |  | 148.0 |  |  | July 2025 |  | January 2031 |  | Repay Series M bonds at maturity, repaid short-term debt, paid capital expenditures and working capital
Yankee Gas Series Z First Mortgage Bonds | 5.55 | % |  | 37.0 |  |  | July 2025 |  | July 2035 |  | Repay Series M bonds at maturity, repaid short-term debt, paid capital expenditures and working capital
As a result of the Yankee Gas long-term debt issuances in July 2025, $75.0 million of current portion of long-term debt was reclassified to Long-Term Debt on Eversource parent’s balance sheet as of June 30, 2025.

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-8A Reference 2: http://www.xbrl.org/2003/role/disclosureRef 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