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9. Property, plant and equipment
 12 Months Ended
Dec. 31, 2018
Property, plant and equipment [abstract]  
Property, plant and equipment
     Lands and buildings     Substations     High, medium and low voltage lines     Meters and Transformer chambers and platforms     Tools, Furniture, vehicles, equipment, communications and advances to suppliers     Construction in process      Supplies and spare parts     Total 
                                 
 At 12.31.17                                 
Cost                1,376,244              13,471,386              36,429,475              15,047,060                  2,506,343                8,717,184                     90,712              77,638,404
Accumulated depreciation                (205,458)             (3,571,659)           (11,249,849)             (4,638,799)                  (912,452)                               -                               -           (20,578,217)
 Net amount                 1,170,786                9,899,727              25,179,626              10,408,261                  1,593,891                8,717,184                     90,712              57,060,187
                                 
Additions                     18,746                   113,838                   380,528                     51,465                     516,244                7,339,357                   129,731                8,549,909
Disposals                         (36)                    (2,211)                  (94,785)                  (35,870)                  (440,852)                               -                               -                (573,754)
Transfers                     89,250                   187,522                1,595,057                   710,388                       89,483             (2,646,562)                  (25,138)                               -
Depreciation for the year                  (73,129)                (403,667)             (1,171,411)                (546,048)                  (367,244)                               -                               -             (2,561,499)
 Net amount 12.31.18                 1,205,617                9,795,209              25,889,015              10,588,196                  1,391,522              13,409,979                   195,305              62,474,843
                                 
 At 12.31.18                                 
Cost                1,449,399              13,769,111              38,060,451              15,749,070                  2,656,570              13,409,979                   195,305              85,289,885
Accumulated depreciation                (243,782)             (3,973,902)           (12,171,436)             (5,160,874)               (1,265,048)                               -                               -           (22,815,042)
 Net amount                 1,205,617                9,795,209              25,889,015              10,588,196                  1,391,522              13,409,979                   195,305              62,474,843

 

·       During the year ended December 31, 2018, the Company capitalized as direct own costs $ 1 billion. 

 

     Lands and buildings     Substations     High, medium and low voltage lines     Meters and Transformer chambers and platforms     Tools, Furniture, vehicles, equipment, communications and advances to suppliers     Construction in process      Supplies and spare parts     Total 
                                 
 At 12.31.16                                 
Cost                1,276,109              12,466,805              33,712,884              13,924,981                  2,398,833                5,839,187                     56,036              69,674,835
Accumulated depreciation                (178,241)             (3,214,869)           (10,386,483)             (4,157,929)                  (842,545)                               -                               -           (18,780,067)
 Net amount                 1,097,868                9,251,936              23,326,401                9,767,052                  1,556,288                5,839,187                     56,036              50,894,768
                                 
Additions                   122,804                   680,868                1,456,818                   467,268                     566,753                5,103,253                     85,034                8,482,798
Disposals                       (765)                           (7)                  (35,030)                    (9,618)                      (4,404)                               -                               -                  (49,824)
Transfers                     50,983                   323,723                1,357,461                   664,134                  (240,153)             (2,225,256)                  (50,358)                (119,466)
Depreciation for the year                (100,104)                (356,793)                (926,024)                (480,575)                  (284,593)                               -                               -             (2,148,089)
 Net amount 12.31.17                 1,170,786                9,899,727              25,179,626              10,408,261                  1,593,891                8,717,184                     90,712              57,060,187
                                 
 At 12.31.17                                 
Cost                1,376,244              13,471,386              36,429,475              15,047,060                  2,506,343                8,717,184                     90,712              77,638,404
Accumulated depreciation                (205,458)             (3,571,659)           (11,249,849)             (4,638,799)                  (912,452)                               -                               -           (20,578,217)
 Net amount                 1,170,786                9,899,727              25,179,626              10,408,261                  1,593,891                8,717,184                     90,712              57,060,187

 

 

·       During the year ended December 31, 2017, the Company capitalized as direct own costs $ 869.7 million.