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Property, Plant and Equipment, Net
 12 Months Ended
Dec. 31, 2018
Disclosure of detailed information about property, plant and equipment [abstract]  
Property, Plant and Equipment, Net
Note 13 – Property, Plant and Equipment, Net
 
A.
Composition
 
   
As at December 31, 2018
  
   
Balance at beginning of year
    
Additions
    
Disposals
    
Differences in translation reserves
    
Balance at end of year
  
   
$ Thousands
  
Cost
                              
Land, roads, buildings and leasehold  improvements
    
42,789
      
4,188
      
(188
)
    
(3,266
)
    
43,523
  
Installations, machinery and equipment
    
499,431
      
22,388
      
(17,990
)
    
(36,942
)
    
466,887
  
Office furniture, equipment and motor vehicles
    
5,568
      
9,294
      
(2,242
)
    
1,548
      
14,168
  
     
547,788
      
35,870
      
(20,420
)
    
(38,660
)
    
524,578
  
Plants under construction
    
164,619
      
59,531
      
-
      
(17,002
)
    
207,148
  
Spare parts for installations
    
13,390
      
5,007
      
(829
)
    
(1,171
)
    
16,397
  
     
725,797
      
100,408
      
(21,249
)
    
(56,833
)
    
748,123
  
                                         
Accumulated depreciation
                                        
Land, roads, buildings and leasehold  improvements
    
7,293
      
1,671
      
(188
)
    
(514
)
    
8,262
  
Installations, machinery and equipment
    
100,833
      
27,800
      
(17,970
)
    
(7,483
)
    
103,180
  
Office furniture, equipment and motor vehicles
    
1,507
      
562
      
(348
)
    
(128
)
    
1,593
  
     
109,633
      
30,033
      
(18,506
)
    
(8,125
)
    
113,035
  
                                         
Balance as at December 31, 2018
    
616,164
      
70,375
      
(2,743
)
    
(48,708
)
    
635,088
  

   
As at December 31, 2017
  
   
Balance at beginning of year
    
Additions
    
Disposals
    
Differences in translation reserves
    
Sale of subsidiaries*
    
Balance at end of year
  
   
$ Thousands
  
Cost
                                    
Land, roads, buildings and leasehold  improvements
    
1,041,723
      
4,139
      
(1,615
)
    
4,167
      
(1,005,625
)
    
42,789
  
Installations, machinery and equipment
    
2,445,579
      
68,410
      
(70,142
)
    
49,825
      
(1,994,241
)
    
499,431
  
Dams
    
164,469
      
105
      
(5
)
    
-
      
(164,569
)
    
-
  
Office furniture, equipment and motor vehicles
    
455,352
      
43,744
      
(4,954
)
    
11,589
      
(500,163
)
    
5,568
  
     
4,107,123
      
116,398
      
(76,716
)
    
65,581
      
(3,664,598
)
    
547,788
  
Plants under construction
    
131,178
      
109,709
      
(15
)
    
9,356
      
(85,609
)
    
164,619
  
Spare parts for installations
    
68,854
      
4,364
      
(186
)
    
1,487
      
(61,129
)
    
13,390
  
     
4,307,155
      
230,471
      
(76,917
)
    
76,424
      
(3,811,336
)
    
725,797
  
                                                 
Accumulated depreciation
                                                
Land, roads, buildings and leasehold  improvements
    
83,737
      
20,523
      
(807
)
    
530
      
(96,690
)
    
7,293
  
Installations, machinery and equipment
    
637,794
      
112,416
      
(13,466
)
    
8,547
      
(644,458
)
    
100,833
  
Dams
    
48,385
      
8,097
      
(250
)
    
-
      
(56,232
)
    
-
  
Office furniture, equipment and motor vehicles
    
39,939
      
23,824
      
(1,307
)
    
484
      
(61,433
)
    
1,507
  
     
809,855
      
164,860
      
(15,830
)
    
9,561
      
(858,813
)
    
109,633
  
                                                 
Balance as at December 31, 2017
    
3,497,300
      
65,611
      
(61,087
)
    
66,863
      
(2,952,523
)
    
616,164
  
 
  *
This amount includes impairment as a result of the sale of Colombian assets. The Group recorded the impairment in cost of sales of $10 million
 
B.
Net carrying values

   
As at December 31,
  
   
2018
    
2017
  
   
$ Thousands
  
Land, roads, buildings and leasehold improvements
    
35,261
      
35,496
  
Installations, machinery and equipment
    
363,707
      
398,598
  
Office furniture, equipment and motor vehicles
    
12,575
      
4,061
  
Plants under construction
    
207,148
      
164,619
  
Spare parts for installations
    
16,397
      
13,390
  
     
635,088
      
616,164
  
 
C.
When there is any indication of impairment, the Group’s entities perform impairment tests for their long-lived assets using fair values less cost to sell based on independent appraisals or value in use estimations, with assumptions based on past experience and current sector forecasts, described below:
 
·
Discount rate is a post-tax measure based on the characteristics of each CGU.
 
·
Cash flow projections include specific estimates for around five years and a terminal growth rate thereafter. The terminal growth rate is determined based on management’s estimate of long-term inflation.
 
·
Existing power purchase agreements (PPAs) signed and existing number of customers.
 
·
The production mix of each country was determined using specifically-developed internal forecast models that consider factors such as prices and availability of commodities, forecast demand of electricity, planned construction or the commissioning of new capacity in the country’s various technologies.
 
·
The distribution business profits were determined using specifically-developed internal forecast models that consider factors such as forecasted demand, fuel prices, energy purchases, collection rates, percentage of losses, quality service improvement, among others.
 
·
Fuel prices have been calculated based on existing supply contracts and on estimated future prices including a price differential adjustment specific to every product according to local characteristics.
 
·
Assumptions for energy sale and purchase prices and output of generation facilities are made based on complex specifically-developed internal forecast models for each country.
 
·
Demand – Demand forecast has taken into consideration the most probably economic performance as well as growth forecasts of different sources.
 
·
Technical performance – The forecast takes into consideration that the power plants have an appropriate preventive maintenance that permits their proper functioning and the distribution businesss has the required capital expenditure to expand and perform properly in order to reach the targeted quality levels.
 
D.
The amount of borrowing costs capitalized in 2018 was $8 million ($3 million in 2017).
 
E.
Fixed assets purchased on credit in 2018, 2017 and 2016 were $23 million, $5 million and $25 million respectively.
 
F.
The composition of depreciation expenses from continuing operations is as follows
 
   
As at December 31,
  
   
2018
    
2017
  
   
$ Thousands
  
Depreciation charged to cost of sales
    
29,809
      
30,102
  
Depreciation charged to general, selling and administrative expenses
    
224
      
597
  
Depreciation charged to results
    
30,033
      
30,699
  
                 
Amortization of intangibles charged to general, selling and administrative expenses
    
383
      
95
  
Depreciation and amortization from continuing operations
    
30,416
      
30,794