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Solar Energy Systems, net
6 Months Ended
Jun. 30, 2023
Solar Energy Systems Disclosure [Abstract]  
Solar Energy Systems, net Solar Energy Systems, net
Solar energy systems, net consists of the following (in thousands):
June 30, 2023December 31, 2022
Solar energy system equipment costs$11,408,910 $10,529,852 
Inverters and batteries1,535,189 1,384,776 
Total solar energy systems12,944,099 11,914,628 
Less: accumulated depreciation and amortization(1,912,611)(1,682,296)
Add: construction-in-progress905,133 756,029 
Total solar energy systems, net$11,936,621 $10,988,361 
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 $120.8 million and $105.0 million for the three months ended June 30, 2023 and 2022, respectively, and $237.4 million and $205.5 million for the six months ended June 30, 2023 and 2022, respectively. The depreciation expense was reduced by the amortization of deferred grants of $2.0 million for both the three months ended June 30, 2023 and 2022, and $4.1 million for both the six months ended June 30, 2023 and 2022.