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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
OPERATING ACTIVITIES |  |
Net loss | $ (156,124,000) | $ (59,414,000)
Adjustments to reconcile net loss to net cash used in operating activities |  |
Change in fair value of warrant liabilities | 84,455,000 | (1,493,000)
Changes in operating assets and liabilities |  |
Net cash used in operating activities | (33,671,000) | (29,678,000)
INVESTING ACTIVITIES |  |
Net cash used in investing activities | (12,036,000) | (46,358,000)
FINANCING ACTIVITIES |  |
Net cash provided by financing activities | 40,294,000 | 67,201,000
Net decrease in cash and cash equivalents | (5,947,000) | (9,005,000)
Cash and cash equivalents, beginning of year | 12,889,000 | 21,894,000
Cash and cash equivalents, end of year of year | 6,942,000 | 12,889,000
Star Peak Energy Transition Corp [Member] |  |
OPERATING ACTIVITIES |  |
Net loss | (112,633,298) | (10,406)
Adjustments to reconcile net loss to net cash used in operating activities |  |
Change in fair value of warrant liabilities | (109,269,830) |
Unrealized gain from Investments held in Trust Account | (136,707) |
Gain on investment (net), dividends and interest held in Trust Account | (136,707) |
Changes in operating assets and liabilities |  |
Prepaid expenses | (625,970) | (1,594)
Franchise tax payable | 198,406 | (4,695)
Accounts payable | (281,128) | (778)
Accrued expenses | 2,370,390 |
Net cash used in operating activities | (1,838,477) | (17,473)
INVESTING ACTIVITIES |  |
Cash deposited in Trust Account | (383,585,040) |
Net cash used in investing activities | (383,585,040) |
FINANCING ACTIVITIES |  |
Proceeds from note payable to related party | 200,000 |
Repayment of note payable to related party | (292,301) | (117,699)
Proceeds received from initial public offering, gross | 383,585,040 |
Proceeds received from private placement | 10,771,700 |
Offering costs paid | (7,904,149) | (24,500)
Net cash provided by financing activities | 386,360,290 | (142,199)
Net decrease in cash and cash equivalents | 936,773 | (159,672)
Cash and cash equivalents, beginning of year | 0 | 159,672
Cash and cash equivalents, end of year of year | 936,773 | 0
Supplemental disclosure of noncash activities: |  |
Offering costs included in accounts payable | 292,500 | 35,000
Offering costs included in accrued expenses | 75,000 | 19,046
Adjust offering costs against accrued expenses |  | $ (149,200)
Deferred legal fees | 203,910 |
Deferred underwriting commissions in connection with the initial public offering | 13,425,476 |
Reclassification of accrued offering costs to accounts payable | (132,500) |
Accounts payable paid by Sponsor | (35,000) |
Initial value of Class A common stock subject to possible redemption | 334,952,900 |
Change in value of Class A common stock subject to possible redemption | (92,197,620) |
Forfeiture of Class B common stock | 47 |
Stock warrant liabilities | $ 11,822,148 |

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