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Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2021
Disclosure Of Significant Accounting Policies [Abstract]  
Schedule of Estimated Useful Lives
The estimated useful lives are as follows:
 
 
% per annum
 
Mainly % per annum
Office furniture and equipment
6-33
  33
Photovoltaic plants in Spain
4-5
 
4-5
Photovoltaic plants in Italy
5   5
Anaerobic digestion plants in the Netherlands
8   8
Leasehold improvements
Over the shorter of the lease period or the life of the asset
  7