Our Business By the Numbers

Electric System
Description  FY2018 FY2017 FY2016 FY2015 FY2014
Number of electric customers  466,000  459,000 455,000  447,000 438,000
Square miles of service area  900  900 900  900 900
Miles of distribution  6,920  6,800 6,760  6,625 6,625
Miles of transmission 744   744 744  744 744
Number of megawatt hours sold  12,732,236  13,893,852 14,586,486  14,379,697 14,312,013
Water System
Description  FY2018 FY2017 FY2016 FY2015 FY2014
Number of water customers  348,000  341,000 333,000  325,000 318,000
Square miles of service area  655  655 655 655 655
Miles of distribution 4,755  4,700 4,449  4,409 4,352
Number of water plants  37  37 37  37 37
Number of wells  134  134 134  134 134
Number of gallons water delivered (millions)  42,416 Mgal 43,150 Mgal  42,360 Mgal 40,040 Mgal 32,468 Mgal
Wastewater System
Description FY2018  FY2017 FY2016 FY2015 FY2014
Number of wastewater customers  271,000  264,000 258,000 251,000 245,000
Square miles of service area  680  680 680 680 680
Miles of collection 4,027  4,000 3,898  3,868 3,817
Number of treatment plants (regional + non-regional)  11  11 11  11 11
Number of gallons of wastewater treated (millions) 29,224 Mgals   30,199 Mgals  28,659 Mgals

29,417 Mgals


23,526 Mgals