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v3.25.1

REGULATORY ACCOUNTING (Tables) | 3 Months Ended
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Mar. 31, 2025
Regulated Operations [Abstract] |
Components of Regulatory Assets | The components of regulatory assets were as follows:
| As of March 31, 2025 |  | As of December 31, 2024
(Millions of Dollars) | Eversource |  | CL&P |  | NSTAR Electric |  | PSNH |  | Eversource |  | CL&P |  | NSTAR Electric |  | PSNH
Storm Costs, Net | $ | 2,034.1 |  |  | $ | 986.5 |  |  | $ | 579.9 |  |  | $ | 467.7 |  |  | $ | 2,039.4 |  |  | $ | 971.1 |  |  | $ | 609.8 |  |  | $ | 458.5 |
Regulatory Tracking Mechanisms | 1,416.0 |  |  | 311.3 |  |  | 622.8 |  |  | 147.6 |  |  | 1,781.6 |  |  | 507.7 |  |  | 650.0 |  |  | 162.8 |
Income Taxes, Net | 979.1 |  |  | 525.0 |  |  | 149.5 |  |  | 20.5 |  |  | 968.4 |  |  | 521.0 |  |  | 145.4 |  |  | 20.7 |
Benefit Costs | 957.9 |  |  | 167.5 |  |  | 290.4 |  |  | 65.0 |  |  | 967.4 |  |  | 168.8 |  |  | 293.6 |  |  | 65.6 |
Securitized Stranded Costs | 338.5 |  |  | — |  |  | — |  |  | 338.5 |  |  | 349.3 |  |  | — |  |  | — |  |  | 349.3 |
Goodwill-related | 243.0 |  |  | — |  |  | 208.6 |  |  | — |  |  | 247.2 |  |  | — |  |  | 212.3 |  |  | — |
Asset Retirement Obligations | 153.2 |  |  | 42.0 |  |  | 79.8 |  |  | 5.2 |  |  | 150.2 |  |  | 41.2 |  |  | 78.3 |  |  | 5.1 |
Derivative Liabilities | 41.8 |  |  | 41.8 |  |  | — |  |  | — |  |  | 57.2 |  |  | 57.2 |  |  | — |  |  | — |
Other Regulatory Assets | 527.7 |  |  | 51.4 |  |  | 111.9 |  |  | 3.5 |  |  | 510.0 |  |  | 58.5 |  |  | 117.7 |  |  | 3.7 |
Total Regulatory Assets | 6,691.3 |  |  | 2,125.5 |  |  | 2,042.9 |  |  | 1,048.0 |  |  | 7,070.7 |  |  | 2,325.5 |  |  | 2,107.1 |  |  | 1,065.7 |
Less: Current Portion | 1,793.3 |  |  | 417.3 |  |  | 874.1 |  |  | 153.6 |  |  | 2,189.7 |  |  | 638.5 |  |  | 902.8 |  |  | 173.3 |
Total Long-Term Regulatory Assets | $ | 4,898.0 |  |  | $ | 1,708.2 |  |  | $ | 1,168.8 |  |  | $ | 894.4 |  |  | $ | 4,881.0 |  |  | $ | 1,687.0 |  |  | $ | 1,204.3 |  |  | $ | 892.4 |
Components of Regulatory Liabilities | The components of regulatory liabilities were as follows:
| As of March 31, 2025 |  | As of December 31, 2024
(Millions of Dollars) | Eversource |  | CL&P |  | NSTAR Electric |  | PSNH |  | Eversource |  | CL&P |  | NSTAR Electric |  | PSNH
EDIT due to Tax Cuts and Jobs Act of 2017 | $ | 2,432.4 |  |  | $ | 954.6 |  |  | $ | 872.0 |  |  | $ | 328.6 |  |  | $ | 2,442.7 |  |  | $ | 956.6 |  |  | $ | 877.6 |  |  | $ | 330.6 |
Regulatory Tracking Mechanisms | 840.5 |  |  | 221.8 |  |  | 475.0 |  |  | 96.1 |  |  | 702.4 |  |  | 180.3 |  |  | 413.6 |  |  | 114.4 |
Cost of Removal | 711.0 |  |  | 226.8 |  |  | 457.6 |  |  | 26.6 |  |  | 684.1 |  |  | 212.8 |  |  | 451.3 |  |  | 20.1 |
Deferred Portion of Non-Service Income Components of Pension, SERP and PBOP | 448.1 |  |  | 64.5 |  |  | 222.3 |  |  | 44.1 |  |  | 427.1 |  |  | 61.6 |  |  | 211.6 |  |  | 42.6 |
AFUDC - Transmission | 160.3 |  |  | 66.6 |  |  | 93.7 |  |  | — |  |  | 154.8 |  |  | 65.1 |  |  | 89.7 |  |  | — |
Benefit Costs | 63.4 |  |  | 4.7 |  |  | 17.1 |  |  | 4.0 |  |  | 69.3 |  |  | 4.5 |  |  | 21.4 |  |  | 3.9 |
Other Regulatory Liabilities | 187.1 |  |  | 42.8 |  |  | 14.1 |  |  | 4.6 |  |  | 184.5 |  |  | 39.1 |  |  | 14.2 |  |  | 4.5 |
Total Regulatory Liabilities | 4,842.8 |  |  | 1,581.8 |  |  | 2,151.8 |  |  | 504.0 |  |  | 4,664.9 |  |  | 1,520.0 |  |  | 2,079.4 |  |  | 516.1 |
Less: Current Portion | 774.5 |  |  | 169.1 |  |  | 497.4 |  |  | 103.1 |  |  | 632.3 |  |  | 124.1 |  |  | 436.3 |  |  | 121.1 |
Total Long-Term Regulatory Liabilities | $ | 4,068.3 |  |  | $ | 1,412.7 |  |  | $ | 1,654.4 |  |  | $ | 400.9 |  |  | $ | 4,032.6 |  |  | $ | 1,395.9 |  |  | $ | 1,643.1 |  |  | $ | 395.0 |

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