Investor Presentaiton

Reconciliation of Adjusted Gross Margins (Unaudited) (millions of dollars) KY Adjusted Twelve Months Ended December 31, 2022 PA Adjusted RI Adjusted Gross Margins Gross Margins Gross Margins (1) Other (2) 1,088 $ (27) $ ppl Operating Income (3) 7,902 KY Adjusted Three Months Ended December 31, 2022 PA Adjusted RI Adjusted Operating (2) (3) Other Income 526 $ 4 $ 2,290 $ Gross Margins Gross Margins Gross Margins Operating Revenues $ 947 $ 813 $ 3,811 $ 3,030 $ Operating Expenses Fuel 223 223 931 931 Energy purchases 92 289 211 1 593 273 1,048 365 1,686 Other operation and maintenance 23 34 113 557 727 92 111 249 1,946 2,398 Depreciation 13 11 285 309 53 28 1,100 1,181 Taxes, other than income 1 39 15 47 102 2 142 33 155 332 Total Operating Expenses 352 373 339 890 1,954 1,351 1,329 647 3,201 6,528 Total $ 595 $ 440 $ 187 $ (886) $ 336 $ 2,460 $ 1,701 $ 441 $ (3,228) $ 1,374 (Unaudited) (millions of dollars) KY Adjusted Three Months Ended December 31, 2021 PA Adjusted RI Adjusted Gross Margins Gross Margins Gross Margins 633 $ 843 $ Operating Revenues $ Operating Expenses Fuel 179 Energy purchases 64 164 Other operation and maintenance 17 25 Depreciation 12 8 Taxes, other than income 28 Total Operating Expenses Total $ 272 571 $ 225 408 $ Operating (2) Other Income (3) $ 9 $ 1,485 $ KY Adjusted Twelve Months Ended December 31, 2021 PA Adjusted RI Adjusted Gross Margins Gross Margins Gross Margins 2,430 $ 3,348 $ (2) Other Operating Income (3) $ 5 $ 5,783 179 710 710 228 186 566 752 402 444 88 111 1,409 1,608 252 272 105 52 925 1,082 26 54 4 112 91 207 680 1,177 1,093 841 2,425 4,359 $ (671) $ 308 $ 2,255 $ 1,589 $ $ (2,420) $ 1,424 (1) Operating revenues excludes a $50 million customer bill credit to all electric and natural gas distribution customers that was treated as a special item. (2) Represents amounts excluded from Adjusted Gross Margins. (3) As reported on the Statements of Income. 35

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