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Deposits - Schedule of deposits (Details) - USD ($)
Mar. 31, 2021
Mar. 31, 2020
Deposits [Line Items]    
Deposits $ 45,532,751 $ 1,879,505
Vattenfall AB [Member]    
Deposits [Line Items]    
Deposits 1,494,617 1,265,907
Bodens Energi [Member]    
Deposits [Line Items]    
Deposits 724,456 613,598
Equipment Deposits [Member]    
Deposits [Line Items]    
Deposits $ 43,313,678 $ 0