Investor Presentaiton

Potential implications of the National Energy Guarantee The electricity system is relatively well equipped to meet a dispatchability mechanism 2019 NEM - forecast extreme day capacity reserve Demand/capacity (MW) 16,000 14,000 12,000 10,000 8,000 6,000 4,000 2,000 0 NSW 10 PoE residential estimate QLD SA 10 PoE business esimate plus minimum reserve level Source: AEMO, AGL; 10 POE = 10% probability of demand exceeding this number Investor Day | 13 December 2017 VIC Available capacity 17 agl

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