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Prepaid and Other Current Assets
 6 Months Ended
Jun. 30, 2022
Prepaid Expense and Other Assets, Current [Abstract]  
Prepaid and Other Current Assets Prepaid and Other Current Assets
The following table sets forth the components of the Company’s prepaid and other current assets (in thousands) as of:

June 30, 2022December 31, 2021
Prepaid insurance$1,543 $805 
Interest receivable1,022 1,530 
Prepaid engineering (1)
900 409 
Tax refunds401 — 
Prepaid other1,409 863 
Total Prepaid and other current assets$5,275 $3,607 

(1)Related to the Net-Zero 1 Project development.