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Leases (Tables)
 9 Months Ended
Sep. 30, 2025
Leases [Abstract]  
Schedule of Lease Costs
The following table provides information related to our lease costs (dollars in thousands):

Three Months Ended September 30,Nine Months Ended September 30,
2025202420252024
Operating Lease Cost - PPAs and Energy Storage PPA Lease Contracts$138,886 $89,410 $228,380 $129,738 
Operating Lease Cost - Land, Property, and Other Equipment5,680 5,110 16,303 14,908 
Total Operating Lease Cost144,566 94,520 244,683 144,646 
Variable Lease Cost (a)51,103 51,835 105,311 121,182 
Short-term Lease Cost550 10,604 1,670 19,849 
Total Lease Cost$196,219 $156,959 $351,664 $285,677 
(a)    Primarily relates to PPA lease contracts.
The following tables provide other additional information related to operating lease liabilities (dollars in thousands):
Nine Months Ended September 30,
20252024
Cash paid for amounts included in the measurement of lease liabilities — operating cash flows:$194,445 $101,213 
Right-of-use operating lease assets obtained in exchange for operating lease liabilities:$2,177,937 (a)$384,593 

September 30, 2025December 31, 2024
Weighted average remaining lease term16 years11 years
Weighted average discount rate (b)5.49 %4.90 %

(a)Primarily relates to various new energy storage PPA operating leases that commenced in 2025.
(b)Most of our lease agreements do not contain an implicit rate that is readily determinable. For these agreements we use our incremental borrowing rate to measure the present value of lease liabilities. We determine our incremental borrowing rate at lease commencement based on the rate of interest that we would have to pay to borrow, on a collateralized basis over a similar term, an amount equal to the lease payments in a similar economic environment. We use the implicit rate when it is readily determinable.
Schedule of Maturities of Operating Lease Labilities
The following table provides information related to the maturity of our operating lease liabilities (dollars in thousands):
September 30, 2025
YearPPAs and Energy Storage PPA Lease ContractsLand, Property and Equipment LeasesTotal
2025 (remaining three months of 2025)$92,698 $4,552 $97,250 
2026364,197 17,666 381,863 
2027390,260 15,085 405,345 
2028394,202 12,394 406,596 
2029398,287 10,261 408,548 
2030402,416 6,115 408,531 
Thereafter3,590,042 58,275 3,648,317 
Total lease commitments5,632,102 124,348 5,756,450 
Less imputed interest1,949,165 40,650 1,989,815 
Total lease liabilities$3,682,937 $83,698 $3,766,635