PROPERTY, PLANT AND EQUIPMENT (Tables)

12 Months Ended

Dec. 31, 2025

Disclosure of detailed information about property, plant and equipment [abstract]

Schedule of movement of property, plant, and equipment and average depreciation rate

The following shows the movement of property, plant, and equipment:


			Dams, reservoirs and water mains						Buildings, civil works and improvements						Machines and equipment						Impairment						In progress						Right of Use						Others						Total
Average depreciation rate per year (%)			1.68						1.86						3.35						—						—						11.28						5.91
Costs			25,158,794						11,892,050						38,860,152						—						5,141,851						1,386,894						1,506,625						83,946,366
Accumulated Depreciation and Impairment			(12,613,616)						(6,119,738)						(25,661,881)						(1,175,712)						—						(1,236,369)						(284,994)						(47,092,310)
Balance on December 31, 2024			12,545,178						5,772,312						13,198,271						(1,175,712)						5,141,851						150,525						1,221,631						36,854,056
Business combination			—						—						348,705						—						—						238,779						71,776						659,260
Addition			834,729						264,123						620,314						(141,492)						1,980,405						116,947						(37,194)						3,637,832
Write-offs			(8,318)						(388)						(14,982)						550,083						(15,993)						(8,860)						(1,328)						500,214
Depreciation			(696,715)						(293,800)						(1,050,121)						—						—						(55,527)						(64,350)						(2,160,513)
Transfers assets held for sale			—						—						(518)						—						(1,943)						—						—						(2,461)
Transfers			325,474						(64,545)						3,583,171						—						(3,596,707)						—						(76,604)						170,789
Balance on December 31, 2025			13,000,348						5,677,702						16,684,840						(767,121)						3,507,613						441,864						1,113,931						39,659,177
Costs			26,307,719						12,017,354						42,336,055						—						3,507,613						1,733,760						1,453,320						87,355,821
Accumulated Depreciation and Impairment			(13,307,371)						(6,339,652)						(25,651,215)						(767,121)						—						(1,291,896)						(339,389)						(47,696,644)


			Dams, reservoirs and water mains						Buildings, civil works and improvements						Machines and equipment						Impairment						In progress						Right of Use						Others						Total
Average depreciation rate per year (%)			1.72						1.69						2.75						—						—						3.84						1.10
Costs			25,243,381						11,940,669						37,765,942						—						4,432,927						1,350,009						1,323,410						82,056,338
Accumulated Depreciation and Impairment			(11,880,149)						(5,814,104)						(25,383,948)						(1,702,404)						—						(1,191,038)						(279,273)						(46,250,916)
Balance on December 31, 2023			13,363,232						6,126,565						12,381,994						(1,702,404)						4,432,927						158,971						1,044,137						35,805,422
Addition			22,208						2,695						47,956						(116,508)						2,845,292						5,667						84,870						2,892,180
Write-offs			(12,775)						295						(22,400)						650,278						(16,048)						—						(12,315)						587,035
Depreciation			(914,695)						(355,849)						(544,344)						—						—						(45,331)						(47,014)						(1,907,233)
Transfers assets held for sale			(267,316)						(68,366)						(135,482)						—						(4,690)						—						(43,807)						(519,661)
Transfers			354,524						66,972						1,470,547						(7,078)						(2,115,630)						31,218						195,760						(3,687)
Balance on December 31, 2024			12,545,178						5,772,312						13,198,271						(1,175,712)						5,141,851						150,525						1,221,631						36,854,056
Costs			25,158,794						11,892,050						38,860,152						—						5,141,851						1,386,894						1,506,625						(83,946,366)
Accumulated Depreciation and Impairment			(12,613,616)						(6,119,738)						(25,661,881)						(1,175,712)						—						(1,236,369)						(284,994)						(47,092,310)