Investor Presentaiton

CAPITAL EXPENDITURE (100%) SA $ million Power Networks CITIPOWER Powercor AUSTRALIA TOTALS HY 2013 HY 2012 HY 2013 HY 2012 HY 2013 HY 2012 Growth Capex 104.2 84.8 114.8 113.7 219.0 198.5 Growth Capex AMI - 67.1 61.3 67.1 61.3 Maintenance capex 79.0 68.4 57.2 40.7 136.2 109.1 Total 183.2 153.2 239.1 215.7 422.3 368.9 Increase (%) 19.6 10.8 14.5 Maintenance $ million capex spend Regulatory depreciation Less inflation uplift on RAB Net regulatory depreciation HY 2013 HY 2012 HY 2013 HY 2012 HY 2013 HY 2012 HY 2013 HY 2012 SA Power Networks 79.0 68.4 104.9 97.6 (20.6) (25.1) 84.3 72.5 13.8 8.9 48.8 45.3 (16.1) (19.8) 32.7 25.5 CITIPOWER Powercor 43.4 31.8 95.5 86.8 (29.4) (35.4) 66.1 51.4 AUSTRALIA Totals 136.2 109.1 249.2 229.7 (66.1) (80.3) 183.1 149.4 Spark 49% share 66.7 53.5 122.1 112.6 (32.4) (39.3) 89.7 73.2 spark infrastructure SPARK INFRASTRUCTURE INVESTOR PRESENTATION - NOVEMBER 2013 16

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