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29. Other operating income (expenses), net
 12 Months Ended
Dec. 31, 2017
Other Operating Income Expenses Net  
Other operating income (expenses), net
  2017 2016 2015
       
Other operating income, net 75,410 62,570 190,840
Other operating expenses (81,089) (57,848) (47,085)
       
Other operating income (expenses), net (5,679) 4,722 143,755

 

Other operating income is comprised by sale of property, plant and equipment, sale of contracts awarded in public bids, right to sell electricity, indemnities and reimbursement of expenses, fines and collaterals, property leases, reuse water, PURA projects and services.

 

Other operating expenses consist mainly of derecognition of concessions assets due to obsolescence, discontinued construction works, unproductive wells, projects considered economically unfeasible, losses on property, plant and equipment and exceeding cost of electricity sold.