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Commitments and contingencies (Details)
$ in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2022
CAD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
CAD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Commitments and contingencies (Details) [Line Items]          
Construction cost $ 32.8     $ 104.6 $ 27.0
Company paid 21.2        
Facilities Agreement 54.2        
Reinforcement security $ 54.2        
Project power consumption 8 years 8 years      
Paid BC Hydro. $ 43.7        
Interest 6.50%     6.50%  
Payable (in Dollars)   $ 14.6      
Additional expenditure $ 2.3        
Potential tax indemnification 10.8        
Potential interest 2.9        
Investors deposited 9.3   $ 9.3    
BC Hydro [Member]          
Commitments and contingencies (Details) [Line Items]          
Company paid $ 11.7