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Segmented information (Tables) | 12 Months Ended
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Dec. 31, 2024
Segment Reporting [Abstract] |
Schedule of Results of Operations and Assets for Segments |
| Year ended December 31, 2024
| Regulated Services Group |  | Hydro Group |  | Corporate Group |  | Total (2)
Revenue (1) | $ | 2,228,642 |  |  | $ | 35,328 |  |  | $ | — |  |  | $ | 2,263,970 |
Other revenue | 53,355 |  |  | 792 |  |  | 1,421 |  |  | 55,568 |
Fuel, power, water purchased and other cost of sales | 594,116 |  |  | 213 |  |  | — |  |  | 594,329 |
Net revenue | 1,687,881 |  |  | 35,907 |  |  | 1,421 |  |  | 1,725,209 |
Operating expenses | 861,758 |  |  | 8,835 |  |  | 9,357 |  |  | 879,950 |
Depreciation and amortization | 387,162 |  |  | 6,762 |  |  | 1,763 |  |  | 395,687 |
Loss on foreign exchange | — |  |  | — |  |  | 3,483 |  |  | 3,483 |
Operating income (loss) | 438,961 |  |  | 20,310 |  |  | (13,182) |  |  | 446,089 |
Interest expense | (191,733) |  |  | (915) |  |  | (170,928) |  |  | (363,576) |
Income from long-term investments | 33,444 |  |  | 19 |  |  | 101,434 |  |  | 134,897 |
Other expenses | (32,275) |  |  | 9 |  |  | (7,964) |  |  | (40,230) |
Earnings (loss) before income taxes | $ | 248,397 |  |  | $ | 19,423 |  |  | $ | (90,640) |  |  | $ | 177,180 |
Property, plant and equipment | $ | 9,284,365 |  |  | $ | 136,759 |  |  | $ | 28,971 |  |  | $ | 9,450,095 |
Investments carried at fair value | 2,058 |  |  | — |  |  | — |  |  | 2,058 |
Equity-method investees | 38,113 |  |  | — |  |  | — |  |  | 38,113 |
Total assets (3) | 12,927,864 |  |  | 152,355 |  |  | 185,902 |  |  | 13,266,121 |
Capital expenditures | $ | 756,230 |  |  | $ | 6,600 |  |  | $ | 1,000 |  |  | $ | 763,830 |
(1) Regulated Services Group revenue includes $30,396 related to alternative revenue programs for the year ended December 31, 2024 that do not represent revenue recognized from contracts with customers. (2) Reflect results of continuing operations. (3) Excluding held for sale assets of $3,695,636. 20.Segmented information (continued)
| Year ended December 31, 2023
| Regulated Services Group |  | Hydro Group |  | Corporate Group |  | Total (2)
Revenue (1) | $ | 2,315,722 |  |  | $ | 34,322 |  |  | $ | — |  |  | $ | 2,350,044 |
Other revenue | 51,137 |  |  | 1,296 |  |  | 1,447 |  |  | 53,880 |
Fuel, power, water purchased and other cost of sales | 742,974 |  |  | 530 |  |  | — |  |  | 743,504 |
Net revenue | 1,623,885 |  |  | 35,088 |  |  | 1,447 |  |  | 1,660,420 |
Operating expenses | 811,359 |  |  | 8,565 |  |  | 3,990 |  |  | 823,914 |
Depreciation and amortization | 346,188 |  |  | 6,659 |  |  | 1,232 |  |  | 354,079 |
Asset impairment charge | — |  |  | — |  |  | 1,481 |  |  | 1,481 |
Loss on foreign exchange | — |  |  | — |  |  | 13,659 |  |  | 13,659 |
Operating income (loss) | 466,338 |  |  | 19,864 |  |  | (18,915) |  |  | 467,287 |
Interest expense | (160,999) |  |  | (1,177) |  |  | (146,264) |  |  | (308,440) |
Income (loss) from long-term investments | 44,953 |  |  | 3 |  |  | (128,891) |  |  | (83,935) |
Other expenses | (121,146) |  |  | (5,271) |  |  | (10,610) |  |  | (137,027) |
Earnings (loss) before income taxes | $ | 229,146 |  |  | $ | 13,419 |  |  | $ | (304,680) |  |  | $ | (62,115) |
Property, plant and equipment | $ | 8,945,637 |  |  | $ | 146,385 |  |  | $ | 34,751 |  |  | $ | 9,126,773 |
Investments carried at fair value | 1,962 |  |  | — |  |  | 1,052,703 |  |  | 1,054,665 |
Equity-method investees | 112,180 |  |  | — |  |  | 500 |  |  | 112,680 |
Total assets (2) | 12,658,955 |  |  | 140,880 |  |  | 1,387,161 |  |  | 14,186,996 |
Capital expenditures | $ | 740,768 |  |  | $ | 6,659 |  |  | $ | 1,232 |  |  | $ | 748,659 |
(1) Regulated Services Group revenue includes $32,839 related to alternative revenue programs for the year ended December 31, 2023 that do not represent revenue recognized from contracts with customers. (2) Reflect results of continuing operations. (3) Excluding held for sale assets of $4,186,965.
Schedule of Information on Operations by Geographic Area | Information on operations by geographic area is as follows:
|  |  |  |  | 2024 |  | 2023
Revenue |  |  |  |  |  |  |
United States |  |  |  |  | $ | 1,852,407 |  |  | $ | 1,942,582 |
Canada |  |  |  |  | 91,612 |  |  | 95,306 |
Other regions |  |  |  |  | 375,519 |  |  | 366,036 |
|  |  |  |  | $ | 2,319,538 |  |  | $ | 2,403,924 |
Property, plant and equipment |  |  |  |  |  |  |
United States |  |  |  |  | $ | 8,362,512 |  |  | $ | 7,900,250 |
Canada |  |  |  |  | 328,452 |  |  | 460,200 |
Other regions |  |  |  |  | 759,131 |  |  | 766,323 |
|  |  |  |  | $ | 9,450,095 |  |  | $ | 9,126,773 |
Intangible assets |  |  |  |  |  |  |
United States |  |  |  |  | $ | 15,250 |  |  | $ | 15,028 |
Canada |  |  |  |  | 252 |  |  | 275 |
Other regions |  |  |  |  | 53,634 |  |  | 57,161 |
|  |  |  |  | $ | 69,136 |  |  | $ | 72,464 |

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- Definition Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-41 + Details
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