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19. PROPERTY, PLANT AND EQUIPMENT (Tables) | 12 Months Ended
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Dec. 31, 2019
Disclosure of detailed information about property, plant and equipment [abstract] |
Schedule of movement in property, plant and equipment |
|  | 2019 |  |  |  | 2018 |
|  | Historical cost |  |  |  | Accumulated depreciation |  |  |  | Net value |  |  |  | Historical cost |  |  |  | Accumulated depreciation |  |  |  | Net value |
In service |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Land |  | 248 |  |  |  | (19 | ) |  |  | 229 |  |  |  | 231 |  |  |  | (16 | ) |  |  | 215 |
Reservoirs, dams and watercourses |  | 3,280 |  |  |  | (2,200 | ) |  |  | 1,080 |  |  |  | 3,282 |  |  |  | (2,132 | ) |  |  | 1,150 |
Buildings, works and improvements |  | 1,092 |  |  |  | (818 | ) |  |  | 274 |  |  |  | 1,114 |  |  |  | (800 | ) |  |  | 314 |
Machinery and equipment |  | 2,598 |  |  |  | (1,869 | ) |  |  | 729 |  |  |  | 2,773 |  |  |  | (1,919 | ) |  |  | 854 |
Vehicles |  | 20 |  |  |  | (18 | ) |  |  | 2 |  |  |  | 32 |  |  |  | (27 | ) |  |  | 5 |
Furniture and utensils |  | 14 |  |  |  | (11 | ) |  |  | 3 |  |  |  | 16 |  |  |  | (12 | ) |  |  | 4 |
|  | 7,252 |  |  |  | (4,935 | ) |  |  | 2,317 |  |  |  | 7,448 |  |  |  | (4,906 | ) |  |  | 2,542 |
In progress |  | 133 |  |  |  | – |  |  |  | 133 |  |  |  | 120 |  |  |  | – |  |  |  | 120 |
Net property, plant and equipment |  | 7,385 |  |  |  | (4,935 | ) |  |  | 2,450 |  |  |  | 7,568 |  |  |  | (4,906 | ) |  |  | 2,662 |
Changes in PP&E are as follows:
|  | 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.
|  | 2016 |  |  |  | Additions |  |  |  | Jaguara, Miranda and Volta Grande Plants (1) |  |  |  | Disposals |  |  |  | Depreciation |  |  |  | Transfers / capitalizations |  |  |  | 2017 |
In service |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Land |  | 279 |  |  |  | – |  |  |  | (61 | ) |  |  | (1 | ) |  |  | (6 | ) |  |  | – |  |  |  | 211 |
Reservoirs, dams and watercourses |  | 1,761 |  |  |  | – |  |  |  | (441 | ) |  |  | (4 | ) |  |  | (85 | ) |  |  | 3 |  |  |  | 1,234 |
Buildings, works and improvements |  | 418 |  |  |  | – |  |  |  | (69 | ) |  |  | – |  |  |  | (20 | ) |  |  | 2 |  |  |  | 331 |
Machinery and equipment |  | 1,172 |  |  |  | – |  |  |  | (305 | ) |  |  | (5 | ) |  |  | (93 | ) |  |  | 105 |  |  |  | 874 |
Vehicles |  | 4 |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | (1 | ) |  |  | – |  |  |  | 3 |
Furniture and utensils |  | 3 |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | 3 |
|  | 3,637 |  |  |  | – |  |  |  | (876 | ) |  |  | (10 | ) |  |  | (205 | ) |  |  | 110 |  |  |  | 2,656 |
In progress |  | 138 |  |  |  | 83 |  |  |  |  |  |  |  | (17 | ) |  |  | – |  |  |  | (98 | ) |  |  | 106 |
Net property, plant and equipment |  | 3,775 |  |  |  | 83 |  |  |  | (876 | ) |  |  | (27 | ) |  |  | (205 | ) |  |  | 12 |  |  |  | 2,762
Schedule of summary of property plant and equipment depreciation rate |
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 |  |  |  |  |  |  |
Town planning and improvements |  | 3.33 |  |  |  |  |  |  |
The average annual depreciation rate for the year 2019 is 3.13% (3.72% in 2018 and 3.14% in 2017):
Hydroelectric Generation | Thermoelectric Generation | Wind Power Generation | Administration
2.83 | 4.13 | 4.87 | 8.29

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