Income statement
| 
       
  | 
    
       
  | 
    
       2018  | 
    
       2017  | 
  
| 
       CHF thousand  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       
  | 
    
       Note  | 
    
       
  | 
    
       
  | 
  
| 
       Net sales  | 
    
       1  | 
    
       691,709  | 
    
       613,259  | 
  
| 
       Change in inventories for work in progress  | 
    
       
  | 
    
       1,052  | 
    
       –707  | 
  
| 
       Own costs capitalised  | 
    
       
  | 
    
       6,948  | 
    
       6,014  | 
  
| 
       Other operating income  | 
    
       
  | 
    
       27,588  | 
    
       29,672  | 
  
| 
       Total operating revenue  | 
    
       
  | 
    
       727,297  | 
    
       648,238  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Energy procurement  | 
    
       
  | 
    
       –580,786  | 
    
       –511,663  | 
  
| 
       Materials and third party services  | 
    
       
  | 
    
       –19,805  | 
    
       –17,907  | 
  
| 
       Concession fees  | 
    
       
  | 
    
       –16,611  | 
    
       –17,541  | 
  
| 
       Personnel expenses  | 
    
       
  | 
    
       –49,827  | 
    
       –46,559  | 
  
| 
       Other operating expenses  | 
    
       
  | 
    
       –24,313  | 
    
       –20,291  | 
  
| 
       Depreciation/amortisation and impairment  | 
    
       2  | 
    
       –31,728  | 
    
       –26,792  | 
  
| 
       Operating expenses  | 
    
       
  | 
    
       –723,070  | 
    
       –640,753  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Operating earnings before interest, extraordinary items and taxes  | 
    
       
  | 
    
       4,227  | 
    
       7,485  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Financial income  | 
    
       
  | 
    
       55,017  | 
    
       52,036  | 
  
| 
       Financial expenses  | 
    
       
  | 
    
       –51,777  | 
    
       –48,678  | 
  
| 
       Operating earnings before taxes  | 
    
       
  | 
    
       7,467  | 
    
       10,843  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Non-operating income  | 
    
       
  | 
    
       682  | 
    
       923  | 
  
| 
       Extraordinary, non-recurring or prior period income  | 
    
       3  | 
    
       1,217  | 
    
       17,210  | 
  
| 
       Extraordinary, non-recurring or prior period expenses  | 
    
       4  | 
    
       –354  | 
    
       –801  | 
  
| 
       Earnings before taxes  | 
    
       
  | 
    
       9,012  | 
    
       28,175  | 
  
| 
       
  | 
    
       
  | 
    
       
  | 
    
       
  | 
  
| 
       Taxes  | 
    
       
  | 
    
       –5,087  | 
    
       –2,839  | 
  
| 
       Net earnings for the year  | 
    
       
  | 
    
       3,925  | 
    
       25,336  |