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12 Other Receivables (Tables)
12 Months Ended
Dec. 31, 2020
Other Receivables [Abstract]  
Schedule of other receivables
  12.31.2020 12.31.2019
Fair value in the purchase and sale of power (Note 35.2.12) 689,531 460,635
Services in progress (a) 260,348 228,593
Credits on purchases of gas (12.1) 120,515 142,941
CDE Transfer (12.2) 60,433  61,898
Advance payments to suppliers (b) 36,609  24,073
Advance payments to employees 17,785  20,427
Derivatives fair value - forward contract (Note 35.2.3 - b) 23,308 -
Decommissioning in progress 36,855  21,238
Advance for severance estate 14,484  15,597
Tariff flag - CCRTB 7,194  19,545
Insurance entities  -  24,574
Other receivables  92,583  69,103
   1,359,645  1,088,624
Current 514,185 426,865
Noncurrent 845,460 661,759
(a) This item refers to services currently in progress within the Company, most of which are related to the Research and Development and Energy Efficiency programs, which upon conclusion are offset against the respective liability recorded for this purpose.
(b) Advances to suppliers provided on contractual clauses.