RELATED PARTY TRANSACTIONS (Tables)

12 Months Ended

Dec. 31, 2025

Disclosure of transactions between related parties [abstract]

Schedule of transactions with related parties


			12/31/2025																		12/31/2024
Reserve			Jointly controlled companies						Associates						Post-employment benefit entities						Jointly controlled companies						Associates						Post-employment benefit entities
Assets
Clients			106,159						6,383						—						154,736						3,788						—
Accounts receivable			—						—						—						—						—						—
Dividends / Interest on own capital receivable			215,295						212,916						—						242,835						465,159						—
Loans and financing receivable			1,038						42,193						68,968						—						—						—
Other assets			—						—						—						1,286						41,056						59,712
			322,493						261,492						68,968						398,857						510,003						59,712

Passive items
Suppliers			46,223						127						694						6,255						—						—
Provisions			—						—						—						—						—						177,503
Social security contribution			—						—						—						—						—						12,907
Actuarial debt agreements			—						—						—						—						—						2,907,762
Sundry obligations			—						—						—						38,940						—						—

Purchase of electricity			—						—						—						23,646						—						—
Obligations with subsidiaries			4,839						—						189,236						—						—						—
Other liabilities			—						—						9,258						—						—						63,648
			51,062						127						199,188						68,841						—						3,161,820


			12/31/2025																		12/31/2024
Result			Jointly controlled companies						Associates						Post-employment benefit entities						Jointly controlled companies						Associates						Post-employment benefit entities
Revenue from the use of electricity			47,026						48,527						—						401,993						—						—
Income from services rendered			585,148						47,891						—						7,324						—						—
Network use charges			(112,959)						(55,314)						—						(57,723)						—						—
Purchase/sale of electricity			(604,107)						—						—						(543,908)						—						—
Interest income, commissions, exchange rates and variations and financial expenses			—						50,343						(16,444)						25,101						—						(42,975)

Other revenues (expenses)			10,702						695						(75,243)						377,767						—						(244,759)
			(74,189)						92,142						(91,687)						210,554						—						(287,734)

Schedule of remuneration to key personnel


			12/31/2025						12/31/2024
Short-term benefits			84,813						64,820
Post-employment benefits			4,006						2,165
Shares based remuneration			18,473						17,820
Other long-term benefits			—						1,395
			107,292						86,200