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Trade receivables (Tables)
12 Months Ended
Dec. 31, 2022
Trade Receivables  
Schedule of trade receivables
          
   12.31.22   12.31.21 
Current:        
Sales of electricity – Billed   16,012    29,292 
Receivables in litigation   287    493 
Allowance for the impairment of trade receivables   (4,634)   (11,700)
Subtotal   11,665    18,085 
           
Sales of electricity – Unbilled   15,333    15,377 
PBA & CABA government credit   991    746 
Fee payable for the expansion of the transportation and others   2    4 
Total current   27,991    34,212 

Schedule of allowance for the impairment of trade receivables
               
   Note   12.31.22   12.31.21 
Balance at beginning of the year        11,700    13,534 
Increase        2,182    3,816 
Decrease        (314)   (411)
Recovery - Agreement on the Regularization of Obligations   2.c    (2,650)      
Result from exposure to inflation        (6,284)   (5,239)
Balance at end of the year        4,634    11,700 
Schedule of aging analysis of trade receivables
          
   12.31.22   12.31.21 
Past due   8,593    9,223 
Up to 3 months   19,398    24,989 
Total trade receivables   27,991    34,212 

Schedule of sensitivity analysis
     
- 5% increase in the uncollectibility rate estimate    
   12.31.22 
 Allowance   4,866 
 Variation   232 

 

- 5% decrease in the uncollectibility rate estimate    
   12.31.22 
 Allowance   4,401 
 Variation   (233)