Investor Presentaiton

Argentina 2015 Results endesa chile Grupo Enel COSTANERA Million US$ 2015 2014 Change Revenues 154 115 34% EBITDA 64 45 40% 41% 39% 5% 8,168 7,051 16% Installed Capacity: Market Share*: Total Generation: 3,652 MW Thermal 2,324 MW 12% 11,406 GWh Hydro 1,328 MW EBITDA Margin Physical Sales (GWh) EL CHOCON Million US$ 2015 2014 Change Revenues EBITDA 61 46 33% 44 25 79% EBITDA Margin Physical Sales (GWh) *Based on installed capacity 72% 53% 35% 3,801 3,391 12% Financial data is converted at 2015 average exchange rate of 654.66 Ch$ / US$ for comparative purposes USE: Public, Investor Relations 25

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