RELATED PARTY TRANSACTIONS |
6 Months Ended |
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Jun. 30, 2026 | |
| Related Party Transactions [Abstract] | |
| RELATED PARTY TRANSACTIONS | RELATED PARTY TRANSACTIONS During the three and six months ended June 30, 2026, the Company recognized revenue of $69 thousand and $75 thousand, respectively, for reimbursable expenses and extended warranty services provided to related parties. During the three and six months ended June 30, 2025, the Company recognized revenue of $2.3 million for sales of both completed and in-process energy storage systems and core technology components, reimbursable expenses and extended warranty services provided to related parties. As of June 30, 2026, the Company had $120 thousand of deferred revenue for extended warranty services and equipment purchases to related parties. As of December 31, 2025, the Company had $194 thousand of deferred revenue for extended warranty services provided to related parties and no outstanding accounts receivable from related parties. As of June 30, 2026 and December 31, 2025, the Company recorded a non-refundable deposit for future equipment purchases by Honeywell of $5.3 million within non-current deferred revenue. As of June 30, 2026 and December 31, 2025, the value of the initial Performance Warrant issued to Honeywell was $0.6 million, and included within other non-current assets in the condensed consolidated balance sheets. The value of the initial Performance Warrant will be recognized as an offset to revenue in the period in which revenue is earned. See also Note 5, Intangible Assets, Net, Note 8, Financing Obligations and Note 11, Common Stock Warrants.
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