Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenue:
Total revenue	[1]	$ 401,242	$ 335,767	$ 727,263	$ 571,065
Cost of revenue:
Total cost of revenue	[2]	294,119	267,245	531,433	464,467
Gross profit		107,123	68,522	195,830	106,598
Operating expenses:
Research and development		40,768	37,364	81,380	72,849
Sales and marketing		24,066	17,901	46,331	31,500
General and administrative	[3]	45,792	36,385	90,692	74,394
Total operating expenses		110,626	91,650	218,403	178,743
Loss from operations		(3,503)	(23,128)	(22,573)	(72,145)
Interest income		6,623	6,430	15,176	13,961
Interest expense	[4]	(14,440)	(15,376)	(28,851)	(29,922)
Other income (expense), net		2,373	(985)	4,421	(2,155)
Loss on extinguishment of debt		(32,340)	(27,182)	(32,340)	(27,182)
Gain (loss) on revaluation of embedded derivatives		112	(88)	9	70
Loss before income taxes		(41,175)	(60,329)	(64,158)	(117,373)
Income tax provision		1,017	856	1,448	355
Net loss		(42,192)	(61,185)	(65,606)	(117,728)
Less: Net income attributable to noncontrolling interest		427	602	827	1,583
Net loss attributable to common stockholders		$ (42,619)	$ (61,787)	$ (66,433)	$ (119,311)
Net loss per share available to common stockholders, basic (in dollars per share)		$ (0.18)	$ (0.27)	$ (0.29)	$ (0.53)
Net loss per share available to common stockholders, diluted (in dollars per share)		$ (0.18)	$ (0.27)	$ (0.29)	$ (0.53)
Weighted average shares used to compute net loss per share available to common stockholders, basic (in shares)		232,542	227,167	231,383	226,377
Weighted average shares used to compute net loss per share available to common stockholders, diluted (in shares)		232,542	227,167	231,383	226,377
Product
Revenue:
Total revenue	[1]	$ 296,611	$ 226,308	$ 508,480	$ 379,672
Cost of revenue:
Total cost of revenue	[2]	198,746	161,332	338,319	277,089
Installation
Revenue:
Total revenue	[1]	37,372	42,733	71,023	54,177
Cost of revenue:
Total cost of revenue	[2]	38,224	44,298	71,539	59,651
Service
Revenue:
Total revenue	[1]	54,449	52,531	107,997	108,991
Cost of revenue:
Total cost of revenue	[2]	49,408	52,401	102,266	108,907
Electricity
Revenue:
Total revenue	[1]	12,810	14,195	39,763	28,225
Cost of revenue:
Total cost of revenue	[2]	$ 7,741	$ 9,214	$ 19,309	$ 18,820

[1] Including related party revenue of $27.1 million and $29.9 million for the three and six months ended June 30, 2025, respectively, and $86.8 million and $209.0 million for the three and six months ended June 30, 2024, respectively.

[2] Including related party cost of revenue of $0.1 million and $0.1 million for the three and six months ended June 30, 2024, respectively. There was no related party cost of revenue for the three and six months ended June 30, 2025.

[3] Including related party general and administrative expenses of $0.2 million and $0.4 million for the three and six months ended June 30, 2025, respectively, and $0.2 million and $0.4 million for the three and six months ended June 30, 2024, respectively.

[4] Including related party interest expense of $0.1 million and $0.1 million for the three and six months ended June 30, 2025, respectively, and $0.1 million and $0.1 million for the three and six months ended June 30, 2024, respectively.