XML 28 R13.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Solar Energy Systems, net | 12 Months Ended
--- | ---
Dec. 31, 2024
Solar Energy Systems Disclosure [Abstract] |
Solar Energy Systems, net | Solar Energy Systems, net Solar energy systems, net consists of the following (in thousands):
|  | December 31,
|  | 2024 |  | 2023
Solar energy system equipment costs |  | $ | 14,258,772 |  |  | $ | 12,558,996 |
Inverters and batteries |  | 2,554,739 |  |  | 1,845,580 |
Total solar energy systems |  | 16,813,511 |  |  | 14,404,576 |
Less: accumulated depreciation and amortization |  | (2,732,888) |  |  | (2,165,171) |
Add: construction-in-progress |  | 951,492 |  |  | 789,466 |
Total solar energy systems, net |  | $ | 15,032,115 |  |  | $ | 13,028,871 |
All solar energy systems, including construction-in-progress, have been leased to or are subject to signed Customer Agreements with customers. In accordance with its policy, the Company periodically reviews the estimated useful lives of its fixed assets on an ongoing basis and recognizes any changes in estimated useful lives by prospectively adjusting depreciation expense. During the three months ended June 30, 2024, the Company completed an assessment of its battery equipment, which included review of an independent engineering report, and determined that the useful life of its batteries was longer than the estimated useful life being used to calculate depreciation. As a result, effective April 1, 2024, the Company changed its estimated useful life to reflect the estimated period these assets will remain in service. The estimated useful life of batteries previously was 10 years and was increased to 15 years. The impact of this change in estimate reduces depreciation expense and was immaterial for the twelve months ended December 31, 2024. For batteries placed in service as of the effective date of April 1, 2024, the impact on depreciation for the year ended December 31, 2024 was approximately $14.0 million. The Company recorded depreciation expense related to solar energy systems of $584.6 million, $500.6 million and $426.7 million for the years ended December 31, 2024, 2023 and 2022, respectively. The depreciation expense was reduced by the amortization of deferred grants of $7.8 million, $8.2 million and $8.3 million for the years ended December 31, 2024, 2023 and 2022, respectively.

X
- Definition Solar energy systems disclosure. + References No definition available. + Details
Name: | run_SolarEnergySystemsDisclosureAbstract
Namespace Prefix: | run_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Solar energy systems disclosure. + References No definition available. + Details
Name: | run_SolarEnergySystemsDisclosureTextBlock
Namespace Prefix: | run_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration