XML 220 R136.htm IDEA: XBRL DOCUMENT v3.22.1
Schedule of property plant and equipment (Details) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
IfrsStatementLineItems [Line Items]    
Property, plant and equipment, cost R$ 18,977,684 R$ 17,908,424
Property, plant and equipment, Accumulated depreciation 8,835,093 8,412,964
Property, plant and equipment, net 10,142,591 9,495,460
Property, plant and equipment, Accumulated depreciation (8,835,093) (8,412,964)
In service    
IfrsStatementLineItems [Line Items]    
Property, plant and equipment, cost 18,412,220 17,298,078
Property, plant and equipment, Accumulated depreciation (8,835,093) (8,412,964)
Property, plant and equipment, net 9,577,127 8,885,114
Property, plant and equipment, Accumulated depreciation 8,835,093 8,412,964
In service | Reservoirs, dams and aqueducts    
IfrsStatementLineItems [Line Items]    
Property, plant and equipment, cost 8,161,702 8,081,989
Property, plant and equipment, Accumulated depreciation (4,776,639) (4,600,598)
Property, plant and equipment, net 3,385,063 3,481,391
Property, plant and equipment, Accumulated depreciation 4,776,639 4,600,598
In service | Machinery [member]    
IfrsStatementLineItems [Line Items]    
Property, plant and equipment, cost 8,409,689 7,644,171
Property, plant and equipment, Accumulated depreciation (2,840,114) (2,619,939)
Property, plant and equipment, net 5,569,575 5,024,232
Property, plant and equipment, Accumulated depreciation 2,840,114 2,619,939
In service | Buildings [member]    
IfrsStatementLineItems [Line Items]    
Property, plant and equipment, cost 1,993,695 1,968,591
Property, plant and equipment, Accumulated depreciation (1,125,862) (1,096,016)
Property, plant and equipment, net 867,833 872,575
Property, plant and equipment, Accumulated depreciation 1,125,862 1,096,016
In service | Land [member]    
IfrsStatementLineItems [Line Items]    
Property, plant and equipment, cost 508,164 490,177
Property, plant and equipment, Accumulated depreciation (49,046) (38,269)
Property, plant and equipment, net 459,118 451,908
Property, plant and equipment, Accumulated depreciation 49,046 38,269
In service | Vehicles [member]    
IfrsStatementLineItems [Line Items]    
Property, plant and equipment, cost 33,871 44,617
Property, plant and equipment, Accumulated depreciation (32,756) (42,725)
Property, plant and equipment, net 1,115 1,892
Property, plant and equipment, Accumulated depreciation 32,756 42,725
In service | Furniture and tools    
IfrsStatementLineItems [Line Items]    
Property, plant and equipment, cost 16,400 22,314
Property, plant and equipment, Accumulated depreciation (10,966) (15,498)
Property, plant and equipment, net 5,434 6,816
Property, plant and equipment, Accumulated depreciation 10,966 15,498
In service | Provision for impairment    
IfrsStatementLineItems [Line Items]    
Property, plant and equipment, cost (710,509) (925,521)
Property, plant and equipment, Accumulated depreciation  
Property, plant and equipment, net (710,509) (925,521)
Property, plant and equipment, Accumulated depreciation  
In service | Concluded projects    
IfrsStatementLineItems [Line Items]    
Property, plant and equipment, cost   (27,928)
Property, plant and equipment, Accumulated depreciation  
Property, plant and equipment, net (27,928)
Property, plant and equipment, Accumulated depreciation  
In service | Special Obligations    
IfrsStatementLineItems [Line Items]    
Property, plant and equipment, cost (792) (332)
Property, plant and equipment, Accumulated depreciation 290 81
Property, plant and equipment, net (502) (251)
Property, plant and equipment, Accumulated depreciation (290) (81)
In progress    
IfrsStatementLineItems [Line Items]    
Property, plant and equipment, cost 565,464 610,346
Property, plant and equipment, Accumulated depreciation  
Property, plant and equipment, net 565,464 610,346
Property, plant and equipment, Accumulated depreciation  
In progress | Provision for impairment    
IfrsStatementLineItems [Line Items]    
Property, plant and equipment, cost (187,382) (120,308)
Property, plant and equipment, Accumulated depreciation  
Property, plant and equipment, net (187,382) (120,308)
Property, plant and equipment, Accumulated depreciation  
In progress | Concluded projects    
IfrsStatementLineItems [Line Items]    
Property, plant and equipment, cost (3,853)
Property, plant and equipment, Accumulated depreciation  
Property, plant and equipment, net (3,853)
Property, plant and equipment, Accumulated depreciation  
In progress | Cost    
IfrsStatementLineItems [Line Items]    
Property, plant and equipment, cost 752,846 734,507
Property, plant and equipment, Accumulated depreciation  
Property, plant and equipment, net 752,846 R$ 734,507
Property, plant and equipment, Accumulated depreciation