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Operating Segments (Details 2) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Contract assets R$ 2,196,348 R$ 1,991,544
Property, plant and equipment 144,197 455,042
Intangible assets 4,303,487 13,388
Right-of-use asset 177,936 82,886
Electricity GET [Member]    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Contract assets 0 0
Property, plant and equipment 105,087 410,673
Intangible assets 4,299,529 10,280
Right-of-use asset 47,266 41,314
Electricity Energy DIS [Member]    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Contract assets 2,196,348 1,966,034
Property, plant and equipment 0 0
Intangible assets 0 0
Right-of-use asset 127,968 34,958
Electricity Energy COM [Member]    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Contract assets 0 0
Property, plant and equipment 18 303
Intangible assets 1,319 1,280
Right-of-use asset 564 444
SER [Member]    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Contract assets 0  
Property, plant and equipment 39,075  
Intangible assets 261  
Right-of-use asset 150  
GAS [Member]    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Contract assets   25,510
Property, plant and equipment   0
Intangible assets   0
Right-of-use asset   (1,363)
Holding And Services [Member]    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Contract assets 0 0
Property, plant and equipment 17 44,066
Intangible assets 2,378 1,828
Right-of-use asset R$ 1,988 R$ 7,533