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INTANGIBLE ASSETS | 12 Months Ended
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Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract] |
INTANGIBLE ASSETS | INTANGIBLE ASSETS
December 31, 2024 | Weighted Average Amortization Rate | Cost | Accumulated Amortization | Net
(millions of Canadian dollars) |  |  |  |
Software | 10.9 | % | 2,109 |  | (1,222) |  | 887 |
Power purchase agreements | 4.5 | % | 58 |  | (26) |  | 32 |
Project agreement 1 | 4.0 | % | 173 |  | (52) |  | 121 |
Customer relationships | 8.6 | % | 2,856 |  | (975) |  | 1,881 |
Biogas rights agreements | 3.4 | % | 999 |  | (34) |  | 965 |
Other intangible assets | 5.8 | % | 665 |  | (234) |  | 431 |
Under development | — | % | 270 |  | — |  | 270 |
|  | 7,130 |  | (2,543) |  | 4,587 |
December 31, 2023 | Weighted Average Amortization Rate | Cost | Accumulated Amortization | Net
(millions of Canadian dollars) |  |  |  |
Software | 12.0 | % | 1,921 |  | (1,090) |  | 831 |
Power purchase agreements | 4.3 | % | 58 |  | (24) |  | 34 |
Project agreement 1 | 4.0 | % | 158 |  | (41) |  | 117 |
Customer relationships | 8.6 | % | 2,636 |  | (675) |  | 1,961 |
Other intangible assets | 8.2 | % | 603 |  | (185) |  | 418 |
Under development | — | % | 176 |  | — |  | 176 |
|  | 5,552 |  | (2,015) |  | 3,537 |
1 Represents a project agreement acquired from the merger of Enbridge and Spectra Energy. For the years ended December 31, 2024, 2023 and 2022, our amortization expense related to intangible assets totaled $530 million, $535 million and $483 million, respectively. Our expected amortization expense associated with existing intangible assets for each of the years 2025 to 2029 is $558 million.

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