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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Operating expenses |  |
General and administrative expenses | $ 14,705,000 | $ 12,425,000
Total operating expenses | 45,475,000 | 44,590,000
Change in fair value of warrant liabilities | (84,455,000) | 1,493,000
Loss before income taxes | (156,119,000) | (59,408,000)
Net loss | $ (156,124,000) | $ (59,414,000)
Weighted-average number of shares outstanding used to compute net loss per share attributable to common stockholders, basic and diluted | 9,474,749 | 10,703,380
Net loss per share attributable to common stockholders, basic and diluted | $ (17.48) | $ (6.05)
Star Peak Energy Transition Corp [Member] |  |
Operating expenses |  |
General and administrative expenses | $ 3,136,965 | $ 9,566
General and administrative expenses - related party | 163,210 |
Franchise tax expense | 200,000 | 840
Total operating expenses | 3,500,175 | 10,406
Change in fair value of warrant liabilities | 109,269,830 |
Net gain from Investments held in Trust Account | 136,707 |
Loss before income taxes | 112,633,298 | 10,406
Net loss | $ (112,633,298) | $ (10,406)
Star Peak Energy Transition Corp [Member] | Class A common stock |  |
Operating expenses |  |
Weighted-average number of shares outstanding used to compute net loss per share attributable to common stockholders, basic and diluted | 38,208,123 |
Star Peak Energy Transition Corp [Member] | Common Class B |  |
Operating expenses |  |
General and administrative expenses | $ 3,300,000 |
Franchise tax expense | 63,000 |
Change in fair value of warrant liabilities | (109,300,000) |
Net loss | $ 112,600,000 |
Weighted-average number of shares outstanding used to compute net loss per share attributable to common stockholders, basic and diluted | 9,589,626 | 9,589,626
Net loss per share attributable to common stockholders, basic and diluted | $ (11.75) | $ 0.00

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