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REGULATORY ACCOUNTING (Tables) | 6 Months Ended
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Jun. 30, 2024
Regulated Operations [Abstract] |
Components of Regulatory Assets | The components of regulatory assets were as follows:
| As of June 30, 2024 |  | As of December 31, 2023
(Millions of Dollars) | Eversource |  | CL&P |  | NSTAR Electric |  | PSNH |  | Eversource |  | CL&P |  | NSTAR Electric |  | PSNH
Storm Costs, Net | $ | 2,074.8 |  |  | $ | 976.8 |  |  | $ | 652.1 |  |  | $ | 445.9 |  |  | $ | 1,785.9 |  |  | $ | 896.6 |  |  | $ | 609.1 |  |  | $ | 280.2 |
Regulatory Tracking Mechanisms | 1,722.0 |  |  | 743.7 |  |  | 549.6 |  |  | 174.3 |  |  | 1,319.2 |  |  | 354.5 |  |  | 482.9 |  |  | 182.2 |
Benefit Costs | 1,116.5 |  |  | 201.6 |  |  | 320.3 |  |  | 81.0 |  |  | 1,117.3 |  |  | 197.4 |  |  | 336.7 |  |  | 79.3 |
Income Taxes, Net | 936.1 |  |  | 522.4 |  |  | 138.2 |  |  | 14.8 |  |  | 912.4 |  |  | 512.6 |  |  | 128.6 |  |  | 16.4 |
Securitized Stranded Costs | 370.9 |  |  | — |  |  | — |  |  | 370.9 |  |  | 392.5 |  |  | — |  |  | — |  |  | 392.5 |
Goodwill-related | 255.7 |  |  | — |  |  | 219.5 |  |  | — |  |  | 264.1 |  |  | — |  |  | 226.7 |  |  | — |
Asset Retirement Obligations | 144.0 |  |  | 39.8 |  |  | 75.3 |  |  | 4.9 |  |  | 137.9 |  |  | 38.5 |  |  | 72.3 |  |  | 4.7 |
Derivative Liabilities | 87.4 |  |  | 87.4 |  |  | — |  |  | — |  |  | 120.9 |  |  | 120.9 |  |  | — |  |  | — |
Other Regulatory Assets | 360.3 |  |  | 21.0 |  |  | 107.9 |  |  | 5.8 |  |  | 339.0 |  |  | 22.7 |  |  | 101.6 |  |  | 8.0 |
Total Regulatory Assets | 7,067.7 |  |  | 2,592.7 |  |  | 2,062.9 |  |  | 1,097.6 |  |  | 6,389.2 |  |  | 2,143.2 |  |  | 1,957.9 |  |  | 963.3 |
Less: Current Portion | 2,071.7 |  |  | 860.8 |  |  | 757.4 |  |  | 175.0 |  |  | 1,674.2 |  |  | 480.4 |  |  | 676.1 |  |  | 189.5 |
Total Long-Term Regulatory Assets | $ | 4,996.0 |  |  | $ | 1,731.9 |  |  | $ | 1,305.5 |  |  | $ | 922.6 |  |  | $ | 4,715.0 |  |  | $ | 1,662.8 |  |  | $ | 1,281.8 |  |  | $ | 773.8 |
Components of Regulatory Liabilities | The components of regulatory liabilities were as follows:
| As of June 30, 2024 |  | As of December 31, 2023
(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 | $ | 2,526.7 |  |  | $ | 963.9 |  |  | $ | 894.0 |  |  | $ | 335.7 |  |  | $ | 2,548.6 |  |  | $ | 969.2 |  |  | $ | 905.1 |  |  | $ | 339.3 |
Regulatory Tracking Mechanisms | 722.7 |  |  | 183.2 |  |  | 393.3 |  |  | 72.6 |  |  | 668.3 |  |  | 154.0 |  |  | 347.2 |  |  | 114.4 |
Cost of Removal | 717.4 |  |  | 182.1 |  |  | 442.2 |  |  | 18.4 |  |  | 666.6 |  |  | 157.9 |  |  | 420.9 |  |  | 16.2 |
Deferred Portion of Non-Service Income Components of Pension, SERP and PBOP | 391.5 |  |  | 56.0 |  |  | 194.0 |  |  | 39.7 |  |  | 354.0 |  |  | 49.9 |  |  | 175.9 |  |  | 36.6 |
AFUDC - Transmission | 142.4 |  |  | 61.0 |  |  | 81.4 |  |  | — |  |  | 124.3 |  |  | 56.1 |  |  | 68.2 |  |  | — |
Benefit Costs | 40.4 |  |  | 0.5 |  |  | 14.7 |  |  | — |  |  | 51.0 |  |  | 0.6 |  |  | 22.2 |  |  | — |
Other Regulatory Liabilities | 204.0 |  |  | 38.5 |  |  | 13.5 |  |  | 4.9 |  |  | 201.9 |  |  | 30.4 |  |  | 13.9 |  |  | 4.6 |
Total Regulatory Liabilities | 4,745.1 |  |  | 1,485.2 |  |  | 2,033.1 |  |  | 471.3 |  |  | 4,614.7 |  |  | 1,418.1 |  |  | 1,953.4 |  |  | 511.1 |
Less: Current Portion | 652.3 |  |  | 133.3 |  |  | 413.5 |  |  | 79.1 |  |  | 591.8 |  |  | 102.2 |  |  | 368.1 |  |  | 117.5 |
Total Long-Term Regulatory Liabilities | $ | 4,092.8 |  |  | $ | 1,351.9 |  |  | $ | 1,619.6 |  |  | $ | 392.2 |  |  | $ | 4,022.9 |  |  | $ | 1,315.9 |  |  | $ | 1,585.3 |  |  | $ | 393.6 |

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