| For the Six Months Ended June 30, |
|---|
| (Thousands of Dollars) | 2025 | 2024 |
|---|
| Operating Activities: |
|---|
| Net Income | $294,877 | $269,954 |
|---|
| Adjustments to Reconcile Net Income to Net Cash Flows Provided by Operating Activities: |
|---|
| Depreciation | 214,396 | 198,856 |
|---|
| Deferred Income Taxes | (34,392) | 146,839 |
|---|
| Uncollectible Expense | 10,118 | 6,326 |
|---|
| Pension, SERP, and PBOP Income, Net | (7,079) | (6,379) |
|---|
| Regulatory Under Recoveries, Net | (101,300) | (117,569) |
|---|
| Amortization of Regulatory Assets/(Liabilities), Net | 418,033 | (246,744) |
|---|
| Cost of Removal Expenditures | (33,705) | (32,317) |
|---|
| Other | 8,996 | (42,305) |
|---|
| Changes in Current Assets and Liabilities: |
|---|
| Receivables and Unbilled Revenues, Net | (626) | (53,861) |
|---|
| Taxes Receivable/Accrued, Net | 56,582 | 83,731 |
|---|
| Accounts Payable | (97,388) | (54,887) |
|---|
| Other Current Assets and Liabilities, Net | 25,100 | (41,887) |
|---|
| Net Cash Flows Provided by Operating Activities | 753,612 | 109,757 |
|---|
| Investing Activities: |
|---|
| Investments in Property, Plant and Equipment | (438,153) | (532,235) |
|---|
| Net Cash Flows Used in Investing Activities | (438,153) | (532,235) |
|---|
| Financing Activities: |
|---|
| Cash Dividends on Common Stock | (330,000) | (82,500) |
|---|
| Cash Dividends on Preferred Stock | (2,779) | (2,779) |
|---|
| Capital Contributions from Eversource Parent | — | 200,000 |
|---|
| Issuance of Long-Term Debt | 400,000 | 350,000 |
|---|
| Decrease in Notes Payable to Eversource Parent | (280,000) | (49,200) |
|---|
| Other Financing Activities | (4,520) | (4,218) |
|---|
| Net Cash Flows (Used in)/Provided by Financing Activities | (217,299) | 411,303 |
|---|
| Net Increase/(Decrease) in Cash, Cash Equivalents and Restricted Cash | 98,160 | (11,175) |
|---|
| Cash and Restricted Cash - Beginning of Period | 2,109 | 12,243 |
|---|
| Cash, Cash Equivalents and Restricted Cash - End of Period | $100,269 | $1,068 |
|---|
| (Thousands of Dollars) | As of June 30, 2025 | As of December 31, 2024 |
|---|
| ASSETS |
|---|
| Current Assets: |
|---|
| Cash | $4,376 | $911 |
|---|
| Receivables, Net (net of allowance for uncollectible accounts of $120,238 and $114,910 as of June 30, 2025 and December 31, 2024, respectively) | 622,537 | 614,563 |
|---|
| Accounts Receivable from Affiliated Companies | 179,865 | 82,921 |
|---|
| Unbilled Revenues | 55,379 | 59,079 |
|---|
| Materials, Supplies and REC Inventory | 195,791 | 220,621 |
|---|
| Regulatory Assets | 900,764 | 902,770 |
|---|
| Prepayments and Other Current Assets | 69,897 | 72,986 |
|---|
| Total Current Assets | 2,028,609 | 1,953,851 |
|---|
| Property, Plant and Equipment, Net | 14,638,823 | 14,037,828 |
|---|
| Deferred Debits and Other Assets: |
|---|
| Regulatory Assets | 1,155,758 | 1,204,337 |
|---|
| Prepaid Pension and PBOP | 746,880 | 724,661 |
|---|
| Other Long-Term Assets | 158,923 | 154,571 |
|---|
| Total Deferred Debits and Other Assets | 2,061,561 | 2,083,569 |
|---|
| Total Assets | $18,728,993 | $18,075,248 |
|---|
| LIABILITIES AND CAPITALIZATION |
|---|
| Current Liabilities: |
|---|
| Notes Payable | $430,000 | $504,782 |
|---|
| Long-Term Debt – Current Portion | 550,000 | 250,000 |
|---|
| Accounts Payable | 460,411 | 534,868 |
|---|
| Accounts Payable to Affiliated Companies | 156,153 | 153,672 |
|---|
| Obligations to Third Party Suppliers | 140,350 | 163,711 |
|---|
| Regulatory Liabilities | 480,158 | 436,312 |
|---|
| Other Current Liabilities | 122,638 | 202,197 |
|---|
| Total Current Liabilities | 2,339,710 | 2,245,542 |
|---|
| Deferred Credits and Other Liabilities: |
|---|
| Accumulated Deferred Income Taxes | 2,046,570 | 2,005,439 |
|---|
| Regulatory Liabilities | 1,650,390 | 1,643,079 |
|---|
| Other Long-Term Liabilities | 396,338 | 377,462 |
|---|
| Total Deferred Credits and Other Liabilities | 4,093,298 | 4,025,980 |
|---|
| Long-Term Debt | 5,338,057 | 4,844,920 |
|---|
| Preferred Stock Not Subject to Mandatory Redemption | 43,000 | 43,000 |
|---|
| Common Stockholder's Equity: |
|---|
| Common Stock | — | — |
|---|
| Capital Surplus, Paid In | 3,888,842 | 3,788,842 |
|---|
| Retained Earnings | 3,026,229 | 3,127,105 |
|---|
| Accumulated Other Comprehensive Loss | (143) | (141) |
|---|
| Common Stockholder's Equity | 6,914,928 | 6,915,806 |
|---|
| Commitments and Contingencies (Note 9) |
|---|
| Total Liabilities and Capitalization | $18,728,993 | $18,075,248 |
|---|
| For the Three Months Ended June 30, | For the Six Months Ended June 30, |
|---|
| (Thousands of Dollars) | 2025 | 2024 | 2025 | 2024 |
|---|
| Operating Revenues | $868,925 | $845,068 | $1,883,152 | $1,792,683 |
|---|
| Operating Expenses: |
|---|
| Purchased Power and Transmission | 225,716 | 209,348 | 534,662 | 482,653 |
|---|
| Operations and Maintenance | 168,365 | 163,580 | 342,503 | 337,252 |
|---|
| Depreciation | 109,331 | 100,286 | 217,346 | 197,208 |
|---|
| Amortization of Regulatory Assets, Net | 15,435 | 21,236 | 67,719 | 69,627 |
|---|
| Energy Efficiency Programs | 44,258 | 66,662 | 107,697 | 148,962 |
|---|
| Taxes Other Than Income Taxes | 76,187 | 71,049 | 152,024 | 131,061 |
|---|
| Total Operating Expenses | 639,292 | 632,161 | 1,421,951 | 1,366,763 |
|---|
| Operating Income | 229,633 | 212,907 | 461,201 | 425,920 |
|---|
| Interest Expense | 55,407 | 54,689 | 114,627 | 104,113 |
|---|
| Other Income, Net | 47,715 | 48,421 | 94,009 | 95,536 |
|---|
| Income Before Income Tax Expense | 221,941 | 206,639 | 440,583 | 417,343 |
|---|
| Income Tax Expense | 53,012 | 49,036 | 104,479 | 99,763 |
|---|
| Net Income | $168,929 | $157,603 | $336,104 | $317,580 |
|---|
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
| For the Three Months Ended June 30, | For the Six Months Ended June 30, |
|---|
| (Thousands of Dollars) | 2025 | 2024 | 2025 | 2024 |
|---|
| Net Income | $168,929 | $157,603 | $336,104 | $317,580 |
|---|
| Other Comprehensive Loss, Net of Tax: |
|---|
| Changes in Funded Status of SERP Benefit Plan | (5) | (23) | (12) | (44) |
|---|
| Qualified Cash Flow Hedging Instruments | 5 | 5 | 10 | 10 |
|---|
| Other Comprehensive Loss, Net of Tax | — | (18) | (2) | (34) |
|---|
| Comprehensive Income | $168,929 | $157,585 | $336,102 | $317,546 |
|---|
CONDENSED CONSOLIDATED STATEMENTS OF COMMON STOCKHOLDER'S EQUITY
| For the Six Months Ended June 30, 2025 |
|---|
| Common Stock · CapitalSurplus,Paid In · RetainedEarnings · AccumulatedOtherComprehensiveLoss · TotalCommonStockholder'sEquity |
|---|
| (Thousands of Dollars, Except Stock Information) · Stock · Amount |
|---|
| Balance as of January 1, 2025 | 200 | $— | | $3,788,842 | | $3,127,105 | | $(141) | $6,915,806 |
|---|
| Net Income | | 167,175 | | 167,175 | |
|---|
| Dividends on Preferred Stock | | (490) | | (490) | |
|---|
| Dividends on Common Stock | | (436,000) | | (436,000) | |
|---|
| Capital Contributions from Eversource Parent | | 100,000 | | 100,000 | |
|---|
| Other Comprehensive Loss | | (2) | | (2) | |
|---|
| Balance as of March 31, 2025 | 200 | — | | 3,888,842 | | 2,857,790 | | (143) | 6,746,489 |
|---|
| Net Income | | 168,929 | | 168,929 | |
|---|
| Dividends on Preferred Stock | | (490) | | (490) | |
|---|
| Balance as of June 30, 2025 | 200 | $— | | $3,888,842 | | $3,026,229 | | $(143) | $6,914,928 |
|---|
| For the Six Months Ended June 30, 2024 |
|---|
| Common Stock · CapitalSurplus,Paid In · RetainedEarnings · AccumulatedOtherComprehensiveIncome · TotalCommonStockholder'sEquity |
|---|
| (Thousands of Dollars, Except Stock Information) · Stock · Amount |
|---|
| Balance as of January 1, 2024 | 200 | $— | | $3,013,842 | | $3,136,612 | | $44 | $6,150,498 |
|---|
| Net Income | | 159,977 | | 159,977 | |
|---|
| Dividends on Preferred Stock | | (490) | | (490) | |
|---|
| Dividends on Common Stock | | (96,700) | | (96,700) | |
|---|
| Capital Contributions from Eversource Parent | | 300,000 | | 300,000 | |
|---|
| Other Comprehensive Loss | | (16) | | (16) | |
|---|
| Balance as of March 31, 2024 | 200 | — | | 3,313,842 | | 3,199,399 | | 28 | 6,513,269 |
|---|
| Net Income | | 157,603 | | 157,603 | |
|---|
| Dividends on Preferred Stock | | (490) | | (490) | |
|---|
| Dividends on Common Stock | | (297,200) | | (297,200) | |
|---|
| Other Comprehensive Loss | | (18) | | (18) | |
|---|
| Balance as of June 30, 2024 | 200 | $— | | $3,313,842 | | $3,059,312 | | $10 | $6,373,164 |
|---|
| For the Six Months Ended June 30, |
|---|
| (Thousands of Dollars) | 2025 | 2024 |
|---|
| Operating Activities: |
|---|
| Net Income | $336,104 | $317,580 |
|---|
| Adjustments to Reconcile Net Income to Net Cash Flows Provided by Operating Activities: |
|---|
| Depreciation | 217,346 | 197,208 |
|---|
| Deferred Income Taxes | 21,446 | 54,640 |
|---|
| Uncollectible Expense | 14,002 | 12,007 |
|---|
| Pension, SERP and PBOP Income, Net | (19,942) | (18,003) |
|---|
| Regulatory Over/(Under) Recoveries, Net | 52,121 | (157,521) |
|---|
| Amortization of Regulatory Assets, Net | 67,719 | 69,627 |
|---|
| Cost of Removal Expenditures | (49,103) | (22,832) |
|---|
| Other | (3,324) | (27,840) |
|---|
| Changes in Current Assets and Liabilities: |
|---|
| Receivables and Unbilled Revenues, Net | (107,269) | (41,197) |
|---|
| Taxes Receivable/Accrued, Net | 1,038 | (5,328) |
|---|
| Accounts Payable | (55,534) | (77,371) |
|---|
| Other Current Assets and Liabilities, Net | (80,994) | 40,403 |
|---|
| Net Cash Flows Provided by Operating Activities | 393,610 | 341,373 |
|---|
| Investing Activities: |
|---|
| Investments in Property, Plant and Equipment | (775,162) | (729,758) |
|---|
| Net Cash Flows Used in Investing Activities | (775,162) | (729,758) |
|---|
| Financing Activities: |
|---|
| Cash Dividends on Common Stock | (436,000) | (393,900) |
|---|
| Cash Dividends on Preferred Stock | (980) | (980) |
|---|
| Issuance of Long-Term Debt | 800,000 | 600,000 |
|---|
| Capital Contributions from Eversource Parent | 100,000 | 300,000 |
|---|
| Decrease in Notes Payable | (74,782) | (129,347) |
|---|
| Other Financing Activities | (9,110) | (6,081) |
|---|
| Net Cash Flows Provided by Financing Activities | 379,128 | 369,692 |
|---|
| Net Decrease in Cash and Restricted Cash | (2,424) | (18,693) |
|---|
| Cash and Restricted Cash - Beginning of Period | 9,023 | 22,785 |
|---|
| Cash and Restricted Cash - End of Period | $6,599 | $4,092 |
|---|
| (Thousands of Dollars) | As of June 30, 2025 | As of December 31, 2024 |
|---|
| ASSETS |
|---|
| Current Assets: |
|---|
| Cash | $88 | $1,431 |
|---|
| Receivables, Net (net of allowance for uncollectible accounts of $15,043 and $14,090 as of June 30, 2025 and December 31, 2024, respectively) | 188,430 | 163,063 |
|---|
| Accounts Receivable from Affiliated Companies | 19,243 | 27,285 |
|---|
| Unbilled Revenues | 51,847 | 57,226 |
|---|
| Materials, Supplies and REC Inventory | 67,176 | 75,778 |
|---|
| Regulatory Assets | 125,497 | 173,267 |
|---|
| Special Deposits | 31,372 | 32,668 |
|---|
| Prepayments and Other Current Assets | 24,917 | 15,916 |
|---|
| Total Current Assets | 508,570 | 546,634 |
|---|
| Property, Plant and Equipment, Net | 5,307,012 | 5,089,943 |
|---|
| Deferred Debits and Other Assets: |
|---|
| Regulatory Assets | 888,626 | 892,411 |
|---|
| Prepaid Pension and PBOP | 98,998 | 91,005 |
|---|
| Other Long-Term Assets | 29,819 | 21,948 |
|---|
| Total Deferred Debits and Other Assets | 1,017,443 | 1,005,364 |
|---|
| Total Assets | $6,833,025 | $6,641,941 |
|---|
| LIABILITIES AND CAPITALIZATION |
|---|
| Current Liabilities: |
|---|
| Notes Payable to Eversource Parent | $35,300 | $131,100 |
|---|
| Rate Reduction Bonds – Current Portion | 43,210 | 43,210 |
|---|
| Accounts Payable | 215,925 | 226,074 |
|---|
| Accounts Payable to Affiliated Companies | 28,906 | 45,141 |
|---|
| Regulatory Liabilities | 103,868 | 121,058 |
|---|
| Accrued Interest | 28,713 | 29,062 |
|---|
| Other Current Liabilities | 61,113 | 62,956 |
|---|
| Total Current Liabilities | 517,035 | 658,601 |
|---|
| Deferred Credits and Other Liabilities: |
|---|
| Accumulated Deferred Income Taxes | 798,787 | 781,559 |
|---|
| Regulatory Liabilities | 402,644 | 394,982 |
|---|
| Other Long-Term Liabilities | 44,013 | 43,859 |
|---|
| Total Deferred Credits and Other Liabilities | 1,245,444 | 1,220,400 |
|---|
| Long-Term Debt | 2,031,083 | 1,732,066 |
|---|
| Rate Reduction Bonds | 302,467 | 324,072 |
|---|
| Common Stockholder's Equity: |
|---|
| Common Stock | — | — |
|---|
| Capital Surplus, Paid In | 1,973,134 | 1,898,134 |
|---|
| Retained Earnings | 763,862 | 808,668 |
|---|
| Common Stockholder's Equity | 2,736,996 | 2,706,802 |
|---|
| Commitments and Contingencies (Note 9) |
|---|
| Total Liabilities and Capitalization | $6,833,025 | $6,641,941 |
|---|
| For the Three Months Ended June 30, | For the Six Months Ended June 30, |
|---|
| (Thousands of Dollars) | 2025 | 2024 | 2025 | 2024 |
|---|
| Operating Revenues | $303,133 | $287,311 | $651,114 | $613,427 |
|---|
| Operating Expenses: |
|---|
| Purchased Power and Transmission | 39,269 | 36,995 | 119,276 | 124,933 |
|---|
| Operations and Maintenance | 66,995 | 69,643 | 138,005 | 138,355 |
|---|
| Depreciation | 41,269 | 38,127 | 81,771 | 75,536 |
|---|
| Amortization of Regulatory Assets, Net | 26,829 | 28,729 | 47,665 | 49,993 |
|---|
| Energy Efficiency Programs | 10,542 | 9,695 | 22,745 | 20,871 |
|---|
| Taxes Other Than Income Taxes | 27,213 | 24,465 | 52,998 | 47,780 |
|---|
| Total Operating Expenses | 212,117 | 207,654 | 462,460 | 457,468 |
|---|
| Operating Income | 91,016 | 79,657 | 188,654 | 155,959 |
|---|
| Interest Expense | 20,503 | 20,259 | 41,073 | 39,453 |
|---|
| Other Income, Net | 13,725 | 7,772 | 24,484 | 14,822 |
|---|
| Income Before Income Tax Expense | 84,238 | 67,170 | 172,065 | 131,328 |
|---|
| Income Tax Expense | 20,323 | 15,726 | 41,871 | 31,528 |
|---|
| Net Income | $63,915 | $51,444 | $130,194 | $99,800 |
|---|
CONDENSED CONSOLIDATED STATEMENTS OF COMMON STOCKHOLDER'S EQUITY
| For the Six Months Ended June 30, 2025 |
|---|
| Common Stock · CapitalSurplus,Paid In · RetainedEarnings · TotalCommonStockholder'sEquity |
|---|
| (Thousands of Dollars, Except Stock Information) · Stock · Amount |
|---|
| Balance as of January 1, 2025 | 301 | $— | | $1,898,134 | $808,668 | $2,706,802 |
|---|
| Net Income | | 66,279 | 66,279 | |
|---|
| Capital Contributions from Eversource Parent | | 75,000 | | 75,000 | |
|---|
| Balance as of March 31, 2025 | 301 | — | | 1,973,134 | 874,947 | 2,848,081 |
|---|
| Net Income | | 63,915 | 63,915 | |
|---|
| Dividends on Common Stock | | (175,000) | (175,000) | |
|---|
| Balance as of June 30, 2025 | 301 | $— | | $1,973,134 | $763,862 | $2,736,996 |
|---|
| For the Six Months Ended June 30, 2024 |
|---|
| Common Stock · CapitalSurplus,Paid In · RetainedEarnings · TotalCommonStockholder'sEquity |
|---|
| (Thousands of Dollars, Except Stock Information) · Stock · Amount |
|---|
| Balance as of January 1, 2024 | 301 | $— | | $1,698,134 | $655,785 | $2,353,919 |
|---|
| Net Income | | 48,356 | 48,356 | |
|---|
| Capital Contributions from Eversource Parent | | 100,000 | | 100,000 | |
|---|
| Balance as of March 31, 2024 | 301 | — | | 1,798,134 | 704,141 | 2,502,275 |
|---|
| Net Income | | 51,444 | 51,444 | |
|---|
| Dividends on Common Stock | | (62,000) | (62,000) | |
|---|
| Balance as of June 30, 2024 | 301 | $— | | $1,798,134 | $693,585 | $2,491,719 |
|---|
| For the Six Months Ended June 30, |
|---|
| (Thousands of Dollars) | 2025 | 2024 |
|---|
| Operating Activities: |
|---|
| Net Income | $130,194 | $99,800 |
|---|
| Adjustments to Reconcile Net Income to Net Cash Flows Provided by Operating Activities: |
|---|
| Depreciation | 81,771 | 75,536 |
|---|
| Deferred Income Taxes | 13,943 | 64,545 |
|---|
| Uncollectible Expense | 2,447 | 2,178 |
|---|
| Pension, SERP and PBOP Income, Net | (4,444) | (4,469) |
|---|
| Regulatory Under Recoveries, Net | (36,271) | (167,077) |
|---|
| Amortization of Regulatory Assets, Net | 47,665 | 49,993 |
|---|
| Cost of Removal Expenditures | (16,545) | (20,358) |
|---|
| Other | (13,837) | (2,691) |
|---|
| Changes in Current Assets and Liabilities: |
|---|
| Receivables and Unbilled Revenues, Net | (16,547) | 1,916 |
|---|
| Taxes Receivable/Accrued, Net | (3,076) | (11,045) |
|---|
| Accounts Payable | 6,151 | (3,697) |
|---|
| Other Current Assets and Liabilities, Net | 483 | (8,142) |
|---|
| Net Cash Flows Provided by Operating Activities | 191,934 | 76,489 |
|---|
| Investing Activities: |
|---|
| Investments in Property, Plant and Equipment | (275,508) | (289,667) |
|---|
| Net Cash Flows Used in Investing Activities | (275,508) | (289,667) |
|---|
| Financing Activities: |
|---|
| Cash Dividends on Common Stock | (175,000) | (62,000) |
|---|
| Capital Contributions from Eversource Parent | 75,000 | 100,000 |
|---|
| Issuance of Long-Term Debt | 300,000 | 300,000 |
|---|
| Repayment of Rate Reduction Bonds | (21,605) | (21,605) |
|---|
| Decrease in Notes Payable to Eversource Parent | (95,800) | (101,000) |
|---|
| Other Financing Activities | (1,627) | (3,140) |
|---|
| Net Cash Flows Provided by Financing Activities | 80,968 | 212,255 |
|---|
| Net Decrease in Cash and Restricted Cash | (2,606) | (923) |
|---|
| Cash and Restricted Cash - Beginning of Period | 37,243 | 35,004 |
|---|
| Cash and Restricted Cash - End of Period | $34,637 | $34,081 |
|---|