Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90Seattle City Light 2015 Annual Report 77 THE CITY OF SEATTLE—CITY LIGHT DEPARTMENT OTHER INFORMATION (UNAUDITED) - 77 - CUSTOMER STATISTICS Year ended December 31 2015 2014 2013 2012 2011 Average number of customers: Residential 381,419 374,619 367,837 362,658 360,442 Non-residential 41,391 40,437 40,218 39,950 39,909 Total 422,810 415,056 408,055 402,608 400,351 Megawatt-hours (b) : Residential 32% 2,914,563 32% 2,987,711 33% 3,158,629 33% 3,098,745 34% 3,217,101 Non-residential 68% 6,242,931 68% 6,352,873 67% 6,347,771 67% 6,367,897 66% 6,383,131 Total 100% 9,157,494 100% 9,340,584 100% 9,506,400 100% 9,466,642 100% 9,600,232 Average annual revenue per customer (b) : Residential 691 $ 695 $ 710 $ 664 $ 679 $ Non-residential 11,390 $ 11,448 $ 10,820 $ 10,603 $ 10,306 $ Year ended December 31 2015 2014 2013 2012 2011 Average annual consumption per customer (kWhs) (a)(b) : Residential - Seattle 7,641 7,975 8,587 8,545 8,925 - National n/a 10,936 10,916 10,837 11,279 Non-residential - Seattle 150,829 157,107 157,834 159,399 159,942 - National n/a 126,114 125,871 125,674 126,703 Average rate per kilowatt-hour (cents) (a)(b) Residential - Seattle 9.05 8.71 8.27 7.77 7.61 - National n/a 12.52 12.12 11.88 11.72 Non-residential - Seattle 7.55 7.29 6.86 6.65 6.44 - National n/a 9.20 8.84 8.64 8.78 (a) Source of national data: Department of Energy (www.eia.doe.gov/electricity/annual/) 2015 National average annual consumption data and average rate data not available. Certain 2014-2011 National average annual consumption and national average rate data were updated with revised actuals. (b) Seattle amounts include an allocation for the net change in unbilled revenue. Effective 2013, allocation of net change in unbilled revenue excludes retail Customer voluntary payments for conservation and solar energy. Prior years presented were not revised. NOTE: A comprehensive rate change of 4.2% became effective January 1, 2015. In addition, a rate change of 0.9% occurred on October 1, 2015 for all customer classes, except Utility Discount Program participants. On August 1, 2015 all classes of Shoreline customers, except Utility Discount Utility Discount Program participants, were subject to a rate change of $0.0005/kWh. Notice of public hearings on future rate actions may be obtained on request to The Office of the City Clerk, 600-4th Ave, Floor Three, Seattle, WA 98104. Phone number 206-684-8344. Additional information about Council meetings can be found on the Web at www.seattle.gov/council/calendar.