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Property, plant and equipment (Tables) | 12 Months Ended
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Dec. 31, 2024
Property, Plant and Equipment [Abstract] |
Schedule of Property, Plant and Equipment | Property, plant and equipment consist of the following:
2024 |
| Cost |  | Accumulated depreciation |  | Net book value
Utility plant | $ | 10,366,245 |  |  | $ | 1,596,778 |  |  | $ | 8,769,467 |
Hydro: generation facilities and other | 258,631 |  |  | 129,426 |  |  | 129,205 |
Land | 117,700 |  |  | — |  |  | 117,700 |
Construction-in-progress |  |  |  |  |
Utility plant | 426,170 |  |  | — |  |  | 426,170 |
Hydro: generation facilities and other | 7,553 |  |  | — |  |  | 7,553 |
| $ | 11,176,299 |  |  | $ | 1,726,204 |  |  | $ | 9,450,095 |
2023 |
| Cost |  | Accumulated depreciation |  | Net book value
Utility plant | $ | 9,330,075 |  |  | $ | 1,204,155 |  |  | $ | 8,125,920 |
Hydro: generation facilities and other | 272,498 |  |  | 132,105 |  |  | 140,393 |
Land | 118,295 |  |  | — |  |  | 118,295 |
Construction-in-progress |  |  |  |  |
Utility plant | 736,173 |  |  | — |  |  | 736,173 |
Hydro: generation facilities and other | 5,992 |  |  | — |  |  | 5,992 |
| $ | 10,463,033 |  |  | $ | 1,336,260 |  |  | $ | 9,126,773 |
Schedule of Capitalization of Interest | Interest and AFUDC capitalized to the cost of the assets in 2024 and 2023 are as follows:
| 2024 |  | 2023
AFUDC capitalized on regulated property: |  |  |
Allowance for borrowed funds | $ | 4,604 |  |  | $ | 9,440 |
Allowance for equity funds | 1,748 |  |  | 3,372 |
| $ | 6,352 |  |  | $ | 12,812 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 360 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 + Details
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- Definition Tabular disclosure of the capitalization of the entity comprised of its long-term debt and equity instruments. The table may be detailed by subsidiary (legal entity) and include information by type of debt or equity detailed by instrument. + References No definition available. + Details
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