Investor Presentaiton

ADDENDA DEMAND SUPPLIED WITH OWN GENERATION, SPOT PURCHASES AND BRIDGE CONTRACTS, HEDGED BY OUR INSTALLED CAPACITY Gas 32% Diesel 10% Renewables 1% Installed capacity 1,971 MW (Mar-18) Coal 57% Increasing spot purchases due to (i) coal, gas and renewable efficient capacity additions in the grid and (ii) start of PPA with distribution companies in central Chile Higher fuel prices, CO 2 taxes and emission-reduction costs have put pressure on average supply cost ENERGY SOURCES AND AVERAGE SUPPLY COST US$/MWh GWh 3,000 150 2,500 100 2,000 1,500 1,000 50 500 1Q15 2Q15 3Q15 4Q15 1Q16 2Q16 3Q16 4Q16 1Q17 2Q17 3Q17 4Q17 1Q18 Coal Gas Diesel Renewable Bridge Contracts Spot Purchases Average Supply Cost Engie Energía Chile Presentation to Investors - 1Q 2018 29 ENGIE

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