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17. PROPERTY, PLANT AND EQUIPMENT (Tables)

12 Months Ended

Dec. 31, 2020

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

Schedule of movement in property, plant and equipment

		2020												2019
		Historical cost				Accumulated depreciation				Net value				Historical cost				Accumulated depreciation				Net value
In service
Land			247				(23	)			224				248				(19	)			229
Reservoirs, dams and watercourses			3,300				(2,280	)			1,020				3,280				(2,200	)			1,080
Buildings, works and improvements			1,100				(836	)			264				1,092				(818	)			274
Machinery and equipment			2,647				(1,930	)			717				2,598				(1,869	)			729
Vehicles			21				(19	)			2				20				(18	)			2
Furniture and utensils			14				(11	)			3				14				(11	)			3
			7,329				(5,099	)			2,230				7,252				(4,935	)			2,317

In progress			177				—				177				133				—				133
Net property, plant and equipment			7,506				(5,099	)			2,407				7,385				(4,935	)			2,450

Changes in PP&E are as follows:

		2019				Additions				Disposals (3)				Depreciation				Transfers / capitalizations (2)				2020
In service
Land (1)			229				—				(1	)			(4	)			—				224
Reservoirs, dams and watercourses			1,080				—				—				(80	)			20				1,020
Buildings, works and improvements			274				—				—				(18	)			8				264
Machinery and equipment			729				20				(2	)			(79	)			49				717
Vehicles			2				—				—				—				—				2
Furniture and utensils			3				—				—				—				—				3
			2,317				20				(3	)			(181	)			77				2,230
In progress			133				112				11				—				(79	)			177
Net property, plant and equipment			2,450				132				8				(181	)			(2	)			2,407

(1)

Certain land sites linked to concession contracts and without provision for reimbursement are amortized in accordance with the period of the concession.

(2)

Balances of R$2 were transferred to Intangible assets from PP&E.

(3)

Includes the impairment loss recognized for assets in progress.

		2018				Additions				Disposals				Depreciation				Transfers / capitalizations (2)				2019
In service
Land (1)			215				—				—				(3	)			17				229
Reservoirs, dams and watercourses			1,150				—				(4	)			(80	)			14				1,080
Buildings, works and improvements			314				—				(5	)			(19	)			(16	)			274
Machinery and equipment			854				—				(81	)			(78	)			34				729
Vehicles			5				—				—				(3	)			—				2
Furniture and utensils			4				—				(1	)			—				—				3
			2,542								(91	)			(183	)			49				2,317
In progress			120				70				(12	)			—				(45	)			133
Net property, plant and equipment			2,662				70				(103	)			(183	)			4				2,450

(1)

Certain land sites linked to concession contracts and without provision for reimbursement are amortized in accordance with the period of the concession.

(2)

Balances of R$4 were transferred between Intangible assets, concession contract assets and PP&E.

		2017				Additions				Disposals				Depreciation				Transfer to Held for sale				Adjustment for business combination				Transfers / capitalizations				2018
In service
Land (1)			211				—				—				(2	)			—				—				6				215
Reservoirs, dams and watercourses			1,234				—				(2	)			(82	)			—				—				—				1,150
Buildings, works and improvements			331				—				—				(19	)			—				—				2				314
Machinery and equipment			874				—				(9	)			(70	)			(256	)			296				19				854
Vehicles			3				—								(2	)			—				—				4				5
Furniture and utensils			3				—				—				—				—				—				1				4
			2,656				—				(11	)			(175	)			(256	)			296				32				2,542
In progress			106				77				(22	)															(41	)			120
Net property, plant and equipment			2,762				77				(33	)			(175	)			(256	)			296				(9	)			2,662

(1)

Certain land sites linked to concession contracts and without provision for reimbursement are amortized in accordance with the period of the concession.

Schedule of summary of property plant and equipment depreciation rate

Depreciation rates, which take into consideration the expected useful life of the assets, are revised annually by Management and are as follows:

Generation		(%)				Administration		(%)
Reservoirs, dams and watercourses			2			Software			20
Buildings – Machine room			2			Vehicles			14.29
Buildings – Other			3.33			IT equipment in general			16.67
Generator			3.33			General equipment			6.25
Water turbine			2.5			Buildings – Other			3.33
Pressure tunnel			3.13
Command station, panel and cubicle			3.57
Floodgate			3.33

The average annual depreciation rate for the year 2020 is 3.14% (3.13% in 2019 and 3.72% in 2018). The segregation by activity is as follows:

Hydroelectric Generation				Wind Power Generation				Administration
	2.96	%			4.94	%			6,19	%

Schedule of consortium

The Company’s portion in the consortium is recorded and controlled individually in the respective categories of PP&E and Intangible assets.

		Stake in power output (%)				Average annual depreciation rate (%)				2020				2019
In service
Usina de Queimado			82.50				3.93				218				217
Accumulated depreciation											(117	)			(109	)
Total											101				108

In progress
Usina de Queimado			82.50				—				2				1
Total											2				1