Investor Presentaiton

NSPW | Consolidated Statements of Income Years Ended December 31 Amounts in Millions NSPW | Investor Fact Book October 2023 | Xcel Energy 2022 2021 2020 Operating revenues Electric, non-affiliates Electric, affiliates Natural gas Other Total operating revenues $800 $733 $687 202 189 168 198 182 119 1 1 1,201 1,105 974 Operating expenses Electric fuel and purchased power, non-affiliates 17 20 13 Purchased power, affiliates 446 408 379 Cost of natural gas sold and transported 116 117 53 Operating and maintenance expenses 223 198 191 Conservation program expenses Depreciation and amortization Taxes (other than income taxes) Total operating expenses 13 13 13 158 147 156 31 28 28 1,004 931 833 Operating income 197 174 141 Other expense, net Allowance for funds used during construction - equity 27 (2) (1) €5 (8) 85 Interest charges and financing costs Interest charges - includes other financing costs of $1, $1 and $1, respectively Allowance for funds used during construction - debt 45 42 40 (3) (2) (2) Total interest charges and financing costs 42 40 38 Income before income taxes Income tax expense (benefit) Net income 160 138 100 35 30 (7) $125 $108 $107 40 40

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