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Solar Energy Systems, net
 3 Months Ended
Mar. 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):
March 31, 2024December 31, 2023
Solar energy system equipment costs$13,002,812 $12,558,996 
Inverters and batteries2,005,966 1,845,580 
Total solar energy systems15,008,778 14,404,576 
Less: accumulated depreciation and amortization(2,303,527)(2,165,171)
Add: construction-in-progress717,285 789,466 
Total solar energy systems, net$13,422,536 $13,028,871 
All solar energy systems, including construction-in-progress, have been leased to or are subject to signed Customer Agreements with customers. The Company recorded depreciation expense related to solar energy
systems of $141.7 million and $116.6 million for the three months ended March 31, 2024 and 2023, respectively. The depreciation expense was reduced by the amortization of deferred grants of $2.0 million and $2.1 million for the three months ended March 31, 2024 and 2023, respectively.