Seattle City Light 2016 ANNUAL REPORT | Supplementary Information 85 MWh = Megawatt–hour(s) MW = Megawatt(s) kWh = Kilowatt–hour(s) HIGHLIGHTS (Unaudited) FINANCIAL ($ in millions) Total operating revenues Total operating expenses Operating income Investment income Interest expense, net Noncapital grants Other income, net Capital contributions and grants Change in net position Debt service coverage ratio, all bonds 2015 $ 882.9 772.0 110.9 6.2 (76.5) 4.6 5.9 39.4 $ 90.5 1.62x 2016 $ 903.2 795.8 107.4 6.0 (75.1) 2.5 6.1 38.4 $ 85.3 1.69x % Change 2.3 3.1 (3.2) (3.2) (1.8) (45.7) 3.4 (2.5) (5.7) 4.3 ENERGY Total generation (City Light-owned generation) System load Peak load (highest single hourly use) Average number of residential and non-residential customers Average annual residential and non-residential energy consumption (includes estimated unbilled revenue allocation) 2016 6,707,264 MWh 9,696,583 MWh 1,785 MW (December 16, 2016) 447,333 131,955 kWh % Change 12.2 0.1 5.7 5.8 (16.7) 2015 5,979,884 MWh 9,687,222 MWh 1,689 MW (November 30, 2015) 422,810 158,471 kWh Non-residential Short-term Wholesale Power Other Residential Long-term Power Purchases Customer Service & Conservation Short-term Wholesale & Other Power Generation Transmission Administrative & General Depreciation Taxes Distribution 2016 OPERATING REVENUES 2016 OPERATING EXPENSES (IN MILLIONS = $795.8) (IN MILLIONS = $903.2) 6% $52.3 13% $105.0 32% $285.7 55% $502.3 15% $120.8 11% $85.2 28% $219.8 5% $38.4 7% $53.5 8% $63.5 9% $72.8 4% $36.8 7% $62.9