Leases

3 Months Ended

Mar. 31, 2026

Leases [Abstract]

Leases

Leases

Facilities, Energy Server Systems, and Vehicles

For the three months ended March 31, 2026 and 2025, rent expenses for all occupied facilities were $5.4 million and $5.2 million, respectively.

Operating and financing lease right-of-use assets and lease liabilities as of March 31, 2026, and December 31, 2025, were as follows (in thousands):

	March 31,		December 31,
	2026		2025
Operating Leases:
Operating lease right-of-use assets, net 1, 2	$	109,395	$	108,541
Current operating lease liabilities	(21,933)		(22,000)
Non-current operating lease liabilities	(107,216)		(106,935)
Total operating lease liabilities	(129,149)		(128,935)
Finance Leases:
Finance lease right-of-use assets, net 2, 3, 4	4,745		4,932
Current finance lease liabilities5	(1,364)		(1,370)
Non-current finance lease liabilities6	(3,685)		(3,848)
Total finance lease liabilities	(5,049)		(5,218)
Total lease liabilities	$	(134,198)	$	(134,153)

1 These assets primarily include leases for facilities, Energy Server systems, and vehicles.

2 Net of accumulated amortization.

3 These assets primarily include leases for vehicles.

4 Included in property, plant and equipment, net in the condensed consolidated balance sheets.

5 Included in accrued expenses and other current liabilities in the condensed consolidated balance sheets.

6 Included in other long-term liabilities in the condensed consolidated balance sheets.

The components of our lease costs for the three months ended March 31, 2026 and 2025, were as follows (in thousands):

	Three Months Ended
	March 31,
	2026		2025
Operating lease costs	$	8,109	$	7,904
Financing lease costs:
Amortization of right-of-use assets	24		177
Interest on lease liabilities	117		82
Total financing lease costs	141		259
Short-term lease costs	608		630
Total lease costs	$	8,858	$	8,793

Weighted average remaining lease terms and discount rates for our leases as of March 31, 2026, and December 31, 2025, were as follows:

	March 31,		December 31,
	2026		2025
Weighted average remaining lease term:
Operating leases	5.9 years		6 years
Finance leases	3.7 years		3.8 years
Weighted average discount rate:
Operating leases	10.4	%	10.5	%
Finance leases	9.0	%	9.0	%

Future lease payments under lease agreements as of March 31, 2026, were as follows (in thousands):

	Operating Leases		Finance Leases
Remainder of 2026	$	25,436	$	1,326
2027	34,532		1,675
2028	29,477		1,355
2029	22,896		1,037
2030	20,767		503
2031	15,081		2
Thereafter	28,029		—
Total minimum lease payments	176,218		5,898
Less: amounts representing interest or imputed interest	(47,069)		(849)
Present value of lease liabilities	$	129,149	$	5,049

For additional information on leases, see Part II, Item 8, Note 9—Leases, section Facilities, Energy Server Systems, and Vehicles in our 2025 Form 10-K.

Managed Services Financing

For details on Managed Services Financing, refer to Part I, Item 7, section Purchase and Financing Options, sub-section Legacy Financing Structure for Managed Services and Part II, Item 8, Note 9—Leases, section Managed Services Financing in our 2025 Form 10-K.

There were no new successful sale-and-leaseback transactions for the three months ended March 31, 2026 and 2025. The recognized operating lease expense from legacy successful sale-and-leaseback transactions for the three months ended March 31, 2026 and 2025, was $3.3 million and $3.4 million, respectively.

Operating lease right-of-use assets from legacy successful sale-and-leaseback transactions as of March 31, 2026, and December 31, 2025, were $36.9 million and $39.0 million, respectively. Operating lease liabilities from legacy successful sale-and-leaseback transactions as of March 31, 2026, and December 31, 2025, were $40.0 million and $42.2 million, including long-term operating lease liability of $30.4 million and $32.9 million, respectively. Financing obligations from legacy successful sale-and-leaseback transactions as of March 31, 2026, and December 31, 2025, were $8.3 million and $8.9 million, including long-term financing obligations of $5.8 million and $6.5 million, respectively.

At March 31, 2026, future lease payments under the Managed Services Agreements financing obligations were as follows (in thousands):

	Financing Obligations
Remainder of 2026	$	17,513
2027	17,930
2028	12,270
2029	7,642
2030	5,889
2031	4,063
Thereafter	9,946
Total minimum lease payments	75,253
Less: imputed interest	(34,521)
Present value of net minimum lease payments	40,732
Less: current financing obligations	(9,767)
Long-term financing obligations	$	30,965

The total financing obligations, as reflected in our condensed consolidated balance sheets, were $216.0 million and $243.8 million as of March 31, 2026, and December 31, 2025, respectively. We expect the difference between these obligations and the principal obligations in the table above to be offset against the carrying value of the related Energy Server systems at the end of the lease and the remainder recognized as either a net gain or net loss at that point. For the three months ended March 31, 2026, we recognized a $9.4 million net gain on failed sale-and-leaseback transactions in Other income, net on our condensed consolidated statements of operations. There were no net loss or net gain on failed sale-and-leaseback transactions for the three months ended March 31, 2025.

Leases

Leases

Facilities, Energy Server Systems, and Vehicles

For the three months ended March 31, 2026 and 2025, rent expenses for all occupied facilities were $5.4 million and $5.2 million, respectively.

Operating and financing lease right-of-use assets and lease liabilities as of March 31, 2026, and December 31, 2025, were as follows (in thousands):

	March 31,		December 31,
	2026		2025
Operating Leases:
Operating lease right-of-use assets, net 1, 2	$	109,395	$	108,541
Current operating lease liabilities	(21,933)		(22,000)
Non-current operating lease liabilities	(107,216)		(106,935)
Total operating lease liabilities	(129,149)		(128,935)
Finance Leases:
Finance lease right-of-use assets, net 2, 3, 4	4,745		4,932
Current finance lease liabilities5	(1,364)		(1,370)
Non-current finance lease liabilities6	(3,685)		(3,848)
Total finance lease liabilities	(5,049)		(5,218)
Total lease liabilities	$	(134,198)	$	(134,153)

1 These assets primarily include leases for facilities, Energy Server systems, and vehicles.

2 Net of accumulated amortization.

3 These assets primarily include leases for vehicles.

4 Included in property, plant and equipment, net in the condensed consolidated balance sheets.

5 Included in accrued expenses and other current liabilities in the condensed consolidated balance sheets.

6 Included in other long-term liabilities in the condensed consolidated balance sheets.

The components of our lease costs for the three months ended March 31, 2026 and 2025, were as follows (in thousands):

	Three Months Ended
	March 31,
	2026		2025
Operating lease costs	$	8,109	$	7,904
Financing lease costs:
Amortization of right-of-use assets	24		177
Interest on lease liabilities	117		82
Total financing lease costs	141		259
Short-term lease costs	608		630
Total lease costs	$	8,858	$	8,793

Weighted average remaining lease terms and discount rates for our leases as of March 31, 2026, and December 31, 2025, were as follows:

	March 31,		December 31,
	2026		2025
Weighted average remaining lease term:
Operating leases	5.9 years		6 years
Finance leases	3.7 years		3.8 years
Weighted average discount rate:
Operating leases	10.4	%	10.5	%
Finance leases	9.0	%	9.0	%

Future lease payments under lease agreements as of March 31, 2026, were as follows (in thousands):

	Operating Leases		Finance Leases
Remainder of 2026	$	25,436	$	1,326
2027	34,532		1,675
2028	29,477		1,355
2029	22,896		1,037
2030	20,767		503
2031	15,081		2
Thereafter	28,029		—
Total minimum lease payments	176,218		5,898
Less: amounts representing interest or imputed interest	(47,069)		(849)
Present value of lease liabilities	$	129,149	$	5,049

For additional information on leases, see Part II, Item 8, Note 9—Leases, section Facilities, Energy Server Systems, and Vehicles in our 2025 Form 10-K.

Managed Services Financing

For details on Managed Services Financing, refer to Part I, Item 7, section Purchase and Financing Options, sub-section Legacy Financing Structure for Managed Services and Part II, Item 8, Note 9—Leases, section Managed Services Financing in our 2025 Form 10-K.

There were no new successful sale-and-leaseback transactions for the three months ended March 31, 2026 and 2025. The recognized operating lease expense from legacy successful sale-and-leaseback transactions for the three months ended March 31, 2026 and 2025, was $3.3 million and $3.4 million, respectively.

Operating lease right-of-use assets from legacy successful sale-and-leaseback transactions as of March 31, 2026, and December 31, 2025, were $36.9 million and $39.0 million, respectively. Operating lease liabilities from legacy successful sale-and-leaseback transactions as of March 31, 2026, and December 31, 2025, were $40.0 million and $42.2 million, including long-term operating lease liability of $30.4 million and $32.9 million, respectively. Financing obligations from legacy successful sale-and-leaseback transactions as of March 31, 2026, and December 31, 2025, were $8.3 million and $8.9 million, including long-term financing obligations of $5.8 million and $6.5 million, respectively.

At March 31, 2026, future lease payments under the Managed Services Agreements financing obligations were as follows (in thousands):

	Financing Obligations
Remainder of 2026	$	17,513
2027	17,930
2028	12,270
2029	7,642
2030	5,889
2031	4,063
Thereafter	9,946
Total minimum lease payments	75,253
Less: imputed interest	(34,521)
Present value of net minimum lease payments	40,732
Less: current financing obligations	(9,767)
Long-term financing obligations	$	30,965

The total financing obligations, as reflected in our condensed consolidated balance sheets, were $216.0 million and $243.8 million as of March 31, 2026, and December 31, 2025, respectively. We expect the difference between these obligations and the principal obligations in the table above to be offset against the carrying value of the related Energy Server systems at the end of the lease and the remainder recognized as either a net gain or net loss at that point. For the three months ended March 31, 2026, we recognized a $9.4 million net gain on failed sale-and-leaseback transactions in Other income, net on our condensed consolidated statements of operations. There were no net loss or net gain on failed sale-and-leaseback transactions for the three months ended March 31, 2025.

Leases

Leases

Facilities, Energy Server Systems, and Vehicles

For the three months ended March 31, 2026 and 2025, rent expenses for all occupied facilities were $5.4 million and $5.2 million, respectively.

Operating and financing lease right-of-use assets and lease liabilities as of March 31, 2026, and December 31, 2025, were as follows (in thousands):

	March 31,		December 31,
	2026		2025
Operating Leases:
Operating lease right-of-use assets, net 1, 2	$	109,395	$	108,541
Current operating lease liabilities	(21,933)		(22,000)
Non-current operating lease liabilities	(107,216)		(106,935)
Total operating lease liabilities	(129,149)		(128,935)
Finance Leases:
Finance lease right-of-use assets, net 2, 3, 4	4,745		4,932
Current finance lease liabilities5	(1,364)		(1,370)
Non-current finance lease liabilities6	(3,685)		(3,848)
Total finance lease liabilities	(5,049)		(5,218)
Total lease liabilities	$	(134,198)	$	(134,153)

1 These assets primarily include leases for facilities, Energy Server systems, and vehicles.

2 Net of accumulated amortization.

3 These assets primarily include leases for vehicles.

4 Included in property, plant and equipment, net in the condensed consolidated balance sheets.

5 Included in accrued expenses and other current liabilities in the condensed consolidated balance sheets.

6 Included in other long-term liabilities in the condensed consolidated balance sheets.

The components of our lease costs for the three months ended March 31, 2026 and 2025, were as follows (in thousands):

	Three Months Ended
	March 31,
	2026		2025
Operating lease costs	$	8,109	$	7,904
Financing lease costs:
Amortization of right-of-use assets	24		177
Interest on lease liabilities	117		82
Total financing lease costs	141		259
Short-term lease costs	608		630
Total lease costs	$	8,858	$	8,793

Weighted average remaining lease terms and discount rates for our leases as of March 31, 2026, and December 31, 2025, were as follows:

	March 31,		December 31,
	2026		2025
Weighted average remaining lease term:
Operating leases	5.9 years		6 years
Finance leases	3.7 years		3.8 years
Weighted average discount rate:
Operating leases	10.4	%	10.5	%
Finance leases	9.0	%	9.0	%

Future lease payments under lease agreements as of March 31, 2026, were as follows (in thousands):

	Operating Leases		Finance Leases
Remainder of 2026	$	25,436	$	1,326
2027	34,532		1,675
2028	29,477		1,355
2029	22,896		1,037
2030	20,767		503
2031	15,081		2
Thereafter	28,029		—
Total minimum lease payments	176,218		5,898
Less: amounts representing interest or imputed interest	(47,069)		(849)
Present value of lease liabilities	$	129,149	$	5,049

For additional information on leases, see Part II, Item 8, Note 9—Leases, section Facilities, Energy Server Systems, and Vehicles in our 2025 Form 10-K.

Managed Services Financing

For details on Managed Services Financing, refer to Part I, Item 7, section Purchase and Financing Options, sub-section Legacy Financing Structure for Managed Services and Part II, Item 8, Note 9—Leases, section Managed Services Financing in our 2025 Form 10-K.

There were no new successful sale-and-leaseback transactions for the three months ended March 31, 2026 and 2025. The recognized operating lease expense from legacy successful sale-and-leaseback transactions for the three months ended March 31, 2026 and 2025, was $3.3 million and $3.4 million, respectively.

Operating lease right-of-use assets from legacy successful sale-and-leaseback transactions as of March 31, 2026, and December 31, 2025, were $36.9 million and $39.0 million, respectively. Operating lease liabilities from legacy successful sale-and-leaseback transactions as of March 31, 2026, and December 31, 2025, were $40.0 million and $42.2 million, including long-term operating lease liability of $30.4 million and $32.9 million, respectively. Financing obligations from legacy successful sale-and-leaseback transactions as of March 31, 2026, and December 31, 2025, were $8.3 million and $8.9 million, including long-term financing obligations of $5.8 million and $6.5 million, respectively.

At March 31, 2026, future lease payments under the Managed Services Agreements financing obligations were as follows (in thousands):

	Financing Obligations
Remainder of 2026	$	17,513
2027	17,930
2028	12,270
2029	7,642
2030	5,889
2031	4,063
Thereafter	9,946
Total minimum lease payments	75,253
Less: imputed interest	(34,521)
Present value of net minimum lease payments	40,732
Less: current financing obligations	(9,767)
Long-term financing obligations	$	30,965

The total financing obligations, as reflected in our condensed consolidated balance sheets, were $216.0 million and $243.8 million as of March 31, 2026, and December 31, 2025, respectively. We expect the difference between these obligations and the principal obligations in the table above to be offset against the carrying value of the related Energy Server systems at the end of the lease and the remainder recognized as either a net gain or net loss at that point. For the three months ended March 31, 2026, we recognized a $9.4 million net gain on failed sale-and-leaseback transactions in Other income, net on our condensed consolidated statements of operations. There were no net loss or net gain on failed sale-and-leaseback transactions for the three months ended March 31, 2025.

Leases

Leases

Facilities, Energy Server Systems, and Vehicles

For the three months ended March 31, 2026 and 2025, rent expenses for all occupied facilities were $5.4 million and $5.2 million, respectively.

Operating and financing lease right-of-use assets and lease liabilities as of March 31, 2026, and December 31, 2025, were as follows (in thousands):

	March 31,		December 31,
	2026		2025
Operating Leases:
Operating lease right-of-use assets, net 1, 2	$	109,395	$	108,541
Current operating lease liabilities	(21,933)		(22,000)
Non-current operating lease liabilities	(107,216)		(106,935)
Total operating lease liabilities	(129,149)		(128,935)
Finance Leases:
Finance lease right-of-use assets, net 2, 3, 4	4,745		4,932
Current finance lease liabilities5	(1,364)		(1,370)
Non-current finance lease liabilities6	(3,685)		(3,848)
Total finance lease liabilities	(5,049)		(5,218)
Total lease liabilities	$	(134,198)	$	(134,153)

1 These assets primarily include leases for facilities, Energy Server systems, and vehicles.

2 Net of accumulated amortization.

3 These assets primarily include leases for vehicles.

4 Included in property, plant and equipment, net in the condensed consolidated balance sheets.

5 Included in accrued expenses and other current liabilities in the condensed consolidated balance sheets.

6 Included in other long-term liabilities in the condensed consolidated balance sheets.

The components of our lease costs for the three months ended March 31, 2026 and 2025, were as follows (in thousands):

	Three Months Ended
	March 31,
	2026		2025
Operating lease costs	$	8,109	$	7,904
Financing lease costs:
Amortization of right-of-use assets	24		177
Interest on lease liabilities	117		82
Total financing lease costs	141		259
Short-term lease costs	608		630
Total lease costs	$	8,858	$	8,793

Weighted average remaining lease terms and discount rates for our leases as of March 31, 2026, and December 31, 2025, were as follows:

	March 31,		December 31,
	2026		2025
Weighted average remaining lease term:
Operating leases	5.9 years		6 years
Finance leases	3.7 years		3.8 years
Weighted average discount rate:
Operating leases	10.4	%	10.5	%
Finance leases	9.0	%	9.0	%

Future lease payments under lease agreements as of March 31, 2026, were as follows (in thousands):

	Operating Leases		Finance Leases
Remainder of 2026	$	25,436	$	1,326
2027	34,532		1,675
2028	29,477		1,355
2029	22,896		1,037
2030	20,767		503
2031	15,081		2
Thereafter	28,029		—
Total minimum lease payments	176,218		5,898
Less: amounts representing interest or imputed interest	(47,069)		(849)
Present value of lease liabilities	$	129,149	$	5,049

For additional information on leases, see Part II, Item 8, Note 9—Leases, section Facilities, Energy Server Systems, and Vehicles in our 2025 Form 10-K.

Managed Services Financing

For details on Managed Services Financing, refer to Part I, Item 7, section Purchase and Financing Options, sub-section Legacy Financing Structure for Managed Services and Part II, Item 8, Note 9—Leases, section Managed Services Financing in our 2025 Form 10-K.

There were no new successful sale-and-leaseback transactions for the three months ended March 31, 2026 and 2025. The recognized operating lease expense from legacy successful sale-and-leaseback transactions for the three months ended March 31, 2026 and 2025, was $3.3 million and $3.4 million, respectively.

Operating lease right-of-use assets from legacy successful sale-and-leaseback transactions as of March 31, 2026, and December 31, 2025, were $36.9 million and $39.0 million, respectively. Operating lease liabilities from legacy successful sale-and-leaseback transactions as of March 31, 2026, and December 31, 2025, were $40.0 million and $42.2 million, including long-term operating lease liability of $30.4 million and $32.9 million, respectively. Financing obligations from legacy successful sale-and-leaseback transactions as of March 31, 2026, and December 31, 2025, were $8.3 million and $8.9 million, including long-term financing obligations of $5.8 million and $6.5 million, respectively.

At March 31, 2026, future lease payments under the Managed Services Agreements financing obligations were as follows (in thousands):

	Financing Obligations
Remainder of 2026	$	17,513
2027	17,930
2028	12,270
2029	7,642
2030	5,889
2031	4,063
Thereafter	9,946
Total minimum lease payments	75,253
Less: imputed interest	(34,521)
Present value of net minimum lease payments	40,732
Less: current financing obligations	(9,767)
Long-term financing obligations	$	30,965

The total financing obligations, as reflected in our condensed consolidated balance sheets, were $216.0 million and $243.8 million as of March 31, 2026, and December 31, 2025, respectively. We expect the difference between these obligations and the principal obligations in the table above to be offset against the carrying value of the related Energy Server systems at the end of the lease and the remainder recognized as either a net gain or net loss at that point. For the three months ended March 31, 2026, we recognized a $9.4 million net gain on failed sale-and-leaseback transactions in Other income, net on our condensed consolidated statements of operations. There were no net loss or net gain on failed sale-and-leaseback transactions for the three months ended March 31, 2025.