Growth Capacity, Peak Demand & Total System Input1 5,584 1,600 5,494 6,000 5,486 5,452 5,371 5,330 5,315 5,282 5,263 5,233 1,400 62 5,000 177 169 162 86 86 1,200 4,000 1,162 1,159 1,152 1,149 1,142 1,000 3,000 1,085 1,080 800 2,000 600 1,000 1,100 1,255 1,255 1,257 1,409 1,392 1,391 1,377 1,326 1,280 400 0 1 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Total System Input Owned Capacity Purchased Power Capacity Peak Demand 1 Measure of customer usage, excluding losses Capital Expenditures ($ millions) 250 2,500 2,136 2,048 2,033 200 2,000 1,738 1,722 1,662 150 1,500 100 1,000 124 120110 117 108 105 50 101 97 0 500 2010 2011 20122013 2014 20152016E 2017E 2018E 2019E 2020E Capex Depreciation Net Plant in Service (Less CWIP) Rate Base (Net Plant less CWIP and Deferred Taxes) Includes effect of Bonus Depreciation through 2019 Actuals include AFUDC, projections exclude AFUDC; Net Plant excludes depreciation recorded as a Cost of Removal regulatory liability 20 Net Plant in Service and Rate Base 000s MWh Demand Annual Capital Expenditures 2,1992,208 1,798 1,837 1,510 1,540 1,601 1,600 1,598 1,586 1,440 1,440 1,321 1,298 1,321 1,295 223 146160176168161 5964606973818692 1