STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating revenues
Operating revenues	$ 395.0	$ 454.1
Operating expenses
Electric fuel and purchased power	187.8	230.9
Operating and maintenance expenses	69.6	72.4
Demand side management expenses	3.9	4.6
Depreciation and amortization	59.1	53.2
Taxes (other than income taxes)	21.3	18.5
Total operating expenses	341.7	379.6
Operating income	53.3	74.5
Other (expense) income, net	(2.0)	0.4
Allowance for funds used during construction — equity	5.9	10.3
Interest charges and financing costs
Interest charges — includes other financing costs of $0.9 and $0.8, respectively	24.2	24.4
Allowance for funds used during construction — debt	(2.6)	(4.5)
Total interest charges and financing costs	21.6	19.9
Income before income taxes	35.6	65.3
Income tax (benefit) expense	(7.1)	11.2
Net income	$ 42.7	$ 54.1