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Fair Value Measurements
6 Months Ended
Jun. 30, 2022
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
The following are the liabilities measured at fair value on the condensed consolidated balance sheet at June 30, 2022 using quoted price in active markets for identical assets (Level 1); significant other observable inputs (Level 2); and significant unobservable inputs (Level 3):
Level 1:
Quoted Prices
in Active
Markets for Identical
Assets
Level 2:
Significant
Other
Observable
Inputs
Level 3:
Significant
Unobservable
Inputs
Total at June 30,
2022
Total Gains (Losses) For The Three Months Ended June 30, 2022Total Gains (Losses) For The Six Months Ended June 30, 2022
Recurring fair value measurements
Private warrants$— $— $182,000 $182,000 $251,000 $684,000 
Stonepeak and Evolve unvested warrants $— $— $— $— $4,334,000 $8,677,000 
Derivative liability - non-controlling redeemable preferred shares$— $— $491,012 $491,012 $(32,536)$20,936 
Total recurring fair value measurements$— $— $673,012 $673,012 $4,552,464 $9,381,936 

Level 1:
Quoted Prices
in Active
Markets for Identical
Assets
Level 2:
Significant
Other
Observable
Inputs
Level 3:
Significant
Unobservable
Inputs
Total at June 30,
2021
Total Gains (Losses) For The Three Months Ended June 30, 2021Total Gains (Losses) For The Six Months Ended June 30, 2021
Recurring fair value measurements
Private warrants$— $— $1,183,000 $1,183,000 $(351,602)$70,228 
Stonepeak and Evolve unvested warrants (As Restated) (1)$— $— $11,123,000 $11,123,000 $(3,145,628)$(3,145,628)
Total recurring fair value measurements$— $— $12,306,000 $12,306,000 $(3,497,230)$(3,075,400)

The following is a reconciliation of the opening and closing balances for the liabilities related to the warrants (Note 11) and derivative liability - non-controlling redeemable preferred shares measured at fair value on a recurring basis using significant unobservable inputs (Level 3) during the three and six months ended June 30, 2022:
Private WarrantsStonepeak and Evolve unvested warrantsNon-controlling redeemable preferred shares - derivative liability
(As Restated) (1) 
Balance at December 31, 2021$866,000 $8,677,000 $511,948 
Total (gains) losses for period included in earnings(433,000)(4,343,000)(53,472)
Balance at March 31, 2022433,000 4,334,000 458,476 
Total (gains) losses for period included in earnings(251,000)(4,334,000)32,536 
Balance at June 30, 2022$182,000 $— $491,012 


The fair value of the level 3 Private Warrants was estimated at June 30, 2022 using the Black-Scholes model which used the following inputs: term of 3.72 years, risk free rate of 3.0%, no dividends, volatility of 67.0%, and strike price of $11.50.
The fair value of the level 3 Private Warrants was estimated at June 30, 2021 using the Black-Scholes model which used the following inputs: term of 4.72 years, risk free rate of 0.80%, no dividends, volatility of 88.0%, and strike price of $11.50.
The following table presents the significant unobservable inputs and valuation methodologies used for the Company’s fair value measurements of non-recurring (level 3) Stonepeak and Evolve unvested warrants at June 30, 2022 :

Series C Unvested WarrantsSeries D Unvested WarrantsSeries E Unvested WarrantsSeries F Unvested Warrants
Fair value (in millions)$—$—$—$—
Valuation methodologyMonte Carlo Simulation & Black Scholes Monte Carlo Simulation & Black ScholesMonte Carlo Simulation & Black ScholesMonte Carlo Simulation & Black Scholes
Term (years)8.908.908.908.90
Risk free rate3.0%3.0%3.0%3.0%
Exercise price$15.0$20.0$30.0$40.0
Volatility56.0%56.0%56.0%56.0%
Capital expenditure forecast (in millions)$125.0$250.0$375.0$500.0
Probability of warrants vesting (a)—%—%—%—%
__________________
(a) During the second quarter ended June 30, 2022, the Company significantly lowered its forecast of Levo's capital deployments due to the passage by the United States Congress of the Infrastructure Investment and Jobs Act bill, and the related unveiling of the Environmental Protection Agency’s 2022 Clean School Bus rebates. The resulting lower forecast of capital deployments reduced the probabilities of the future vesting of the unvested warrants.

The following table presents the significant unobservable inputs and valuation methodologies used for the Company’s fair value measurements of non-recurring (level 3) Stonepeak and Evolve unvested warrants at June 30, 2021:

Series C Unvested WarrantsSeries D Unvested WarrantsSeries E Unvested WarrantsSeries F Unvested Warrants
Fair value (in millions)$3.8$3.1$2.4$1.9
Valuation methodologyMonte Carlo Simulation & Black ScholesMonte Carlo Simulation & Black ScholesMonte Carlo Simulation & Black ScholesMonte Carlo Simulation & Black Scholes
Term (years)9.909.909.909.90
Risk free rate1.4%1.4%1.4%1.4%
Exercise price$15.0$20.0$30.0$40.0
Volatility55.0%55.0%55.0%55.0%
Capital expenditure forecast (in millions)$125.0$250.0$375.0$500.0
Probability of warrants vesting97.1%88.2%78.8%70.4%

The fair value of the level 3 derivative liability - non-controlling redeemable preferred shares are estimated at June 30, 2022 using the Monte Carlo Simulation model which used the following inputs: terms range from 2.09 years years to 7.0 years, risk free rate of 3.0%, no dividends, volatility of 57.0% and probability of redemptions triggered of 75.0%.

There were no transfers between Level 1 and Level 2 of the fair value hierarchy in 2022 and 2021.
Cash, accounts receivable, accounts payable, and accrued expenses are generally carried on the cost basis, which management believes approximates fair value due to the short-term maturity of these instruments.