| Dec 31, 2018 | Dec 31, 2019 | Dec 31, 2020 | Dec 31, 2021 | Dec 31, 2022 | Dec 31, 2023 | Dec 31, 2024 |
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| Evergy Kansas Central | - | 2,507 | 2,418 | 2,847 | 3,056 | 2,698 | 3,007 |
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| Revenues | 4,276 | 5,148 | 4,913 | 5,587 | 5,859 | 5,508 | 5,847 |
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| Evergy Kansas Central | - | 493 | 428 | 639 | 856 | 593 | 557 |
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| FuelAndPurchasedPower | 1,079 | 1,265 | 1,099 | 1,557 | 1,821 | 1,495 | 1,480 |
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| Evergy Kansas Central | - | 251 | 263 | 290 | 323 | 303 | 371 |
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| SPPNetworkTransmissionCosts | 260 | 251 | 263 | 290 | 323 | 303 | 371 |
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| Evergy Kansas Central | - | 531 | 514 | 531 | 536 | 477 | 476 |
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| Operating and maintenance | 1,116 | 1,219 | 1,163 | 1,108 | 1,085 | 945 | 962 |
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| Evergy Kansas Central | - | 444 | 453 | 467 | 485 | 516 | 562 |
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| Depreciation and amortization | 619 | 862 | 880 | 896 | 929 | 1,077 | 1,114 |
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| Evergy Kansas Central | - | 192 | 193 | 204 | 217 | 220 | 251 |
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| Taxes, Miscellaneous | 269 | 366 | 364 | 381 | 398 | 407 | 453 |
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| Evergy Kansas Central | - | 1,911 | 1,851 | 2,131 | 2,416 | 2,108 | 2,216 |
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| Total Operating Expenses | 3,342 | 3,962 | 3,770 | 4,232 | 4,592 | 4,226 | 4,379 |
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| Evergy Kansas Central | - | 597 | 567 | 716 | 640 | 591 | 791 |
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| INCOME FROM OPERATIONS | 934 | 1,186 | 1,144 | 1,355 | 1,267 | 1,282 | 1,468 |
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| Evergy Kansas Central | - | 4 | 5 | 1 | -4 | 3 | 3 |
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| Investment earnings (loss) | - | 11 | 11 | 60 | 9 | 30 | 5 |
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| Evergy Kansas Central | - | 23 | 21 | 27 | 14 | 34 | 29 |
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| Other income | 16 | 27 | 31 | 46 | 30 | 41 | 39 |
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| Evergy Kansas Central | - | 40 | 39 | 36 | 40 | 39 | 19 |
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| Other expense | 79 | 77 | 78 | 87 | 97 | 75 | 40 |
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| Evergy Kansas Central | - | -13 | -13 | -8 | -29 | -1 | 13 |
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| Nonoperating Income (Expense) | -54 | -39 | -36 | 19 | -58 | -5 | 3 |
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| Evergy Kansas Central | - | 177 | 168 | 160 | 182 | 215 | 230 |
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| Interest expense | 280 | 374 | 384 | 373 | 404 | 526 | 563 |
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| Evergy Kansas Central | - | 407 | 387 | 548 | 429 | 375 | 574 |
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| INCOME BEFORE INCOME TAXES | 600 | 773 | 724 | 1,001 | 805 | 752 | 908 |
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| Evergy Kansas Central | - | 52 | 156 | 52 | 12 | -6 | 12 |
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| Income tax expense | 59 | 97 | 102 | 117 | 48 | 16 | 30 |
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| Evergy Kansas Central | - | 5 | 5 | 4 | 4 | 4 | 3 |
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| Income (Loss) from Equity Method Investments | 5 | 10 | 8 | 8 | 7 | 7 | 8 |
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| Evergy Kansas Central | - | 359 | 236 | 501 | 421 | 385 | 565 |
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| NET INCOME | 546 | 686 | 630 | 892 | 765 | 744 | 886 |
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| Evergy Kansas Central | - | 16 | 12 | 12 | 12 | 12 | 12 |
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| Less: Net income attributable to noncontrolling interests | 10 | 16 | 12 | 12 | 12 | 12 | 12 |
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| Evergy Kansas Central | - | 343 | 224 | 489 | 409 | 372 | 553 |
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| Net income attributable to Evergy, Inc. | 546 | 686 | 630 | 892 | 765 | 744 | 886 |
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