Investor Presentaiton

13.0 12.2 10.8 7.8 • . • Ausgrid's network has distributed electricity within NSW for over 100 years 1.75 million end customers² and 25,424 GWh of electricity transported in FY19 Total RAB of A$15.7 billion as at 30 June 2019 per Final Determination 6.2 4.1 3.9 3.8 Ausgrid Energex Ergon Energy Essential Energy Endeavour Energy SA Power Networks Peer RAB and customer base comparison Largest distribution network in the NEM by RAB, end customer numbers, electricity delivered and maximum demand RAB of distribution networks in the NEM in FY18 (A$bn)¹ Largest RAB of any other network in the NEM 2.1 Distribution Transmission |Network located in NSW Customers of distribution networks in the NEM in FY18 (m)³ More customers than any other network in the NEM I I I 1.7 i 1.5 Network located in NSW 2.3 1.9 1.7 1.4 0.9 0.9 Powercor AusNet Services United Energy CitiPower TasNetworks Jemena Power and Water Evoenergy ¡ Ausgrid Energex Endeavour Energy Essential Energy 1.0 0.9 0.9 0.8 0.8 0.7 0.7 0.3 0.3 Source: AER State of the Energy Market Report (2018) (data gathered from AER regulatory determinations and benchmarking Regulatory Information Notices) as at 17 December 2018 RAB as at June 2018 (December 2018 for Victorian businesses) 1. 2. As at June 2018 23 Represents total residential, government, commercial and industrial customers Ausgrid 16 Powercor SA Power Networks Ergon Energy AusNet Services United Energy CitiPower 0.3 0.2 0.1 Jemena TasNetworks Evoenergy Power and Water

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