XML 170 R158.htm IDEA: XBRL DOCUMENT
v3.22.1

Investments in Associates 2 (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Book value |  |  |  |
Beginning balance | ₩ 4,250,787 |  | ₩ 4,251,802 |
Acquisition | 568,653 |  | 96,255 |
Disposal | (3,484) |  | (207) |
Dividends received | (148,395) |  | (98,175) |
Share of profit (loss) | 417,123 |  | 59,092 |
Other comprehensive income (loss) | 161,751 |  | (48,911) |
Others (book value) | (14,062) |  | (9,069) |
Ending balance | 5,232,373 |  | 4,250,787 |
Korea Gas Corporation |  |  |  |
Book value |  |  |  |
Beginning balance | 1,647,325 | [1] | 1,693,967 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | (7,182) |
Share of profit (loss) | 209,357 |  | (14,104) |
Other comprehensive income (loss) | 13,017 |  | (25,023) |
Others (book value) | (54,186) |  | (333) |
Ending balance | 1,815,513 |  | 1,647,325 | [1]
Korea Electric Power Industrial Development Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 25,630 |  | 25,393 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | (1,966) |  | (2,146) |
Share of profit (loss) | 378 |  | 3,806 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 575 |  | (1,423) |
Ending balance | 24,617 |  | 25,630 |
YTN Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 40,549 |  | 39,747 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | (270) |  | (90) |
Share of profit (loss) | 11,192 |  | 1,086 |
Other comprehensive income (loss) | 22 |  | (6) |
Others (book value) | 335 |  | (188) |
Ending balance | 51,828 |  | 40,549 |
Cheongna Energy Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  | 1,411 |
Acquisition |  |  | 990 |
Disposal |  |  | 0 |
Dividends received |  |  | 0 |
Share of profit (loss) |  |  | 2,518 |
Other comprehensive income (loss) |  |  | 0 |
Others (book value) |  |  | (4,919) |
Ending balance |  |  | 0 |
Gangwon Wind Power Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 11,443 |  | 12,327 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | (1,703) |  | (1,988) |
Share of profit (loss) | 814 |  | 1,104 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 10,554 |  | 11,443 |
Hyundai Green Power Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 132,774 |  | 124,253 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | (8,888) |  | (8,889) |
Share of profit (loss) | (562) |  | 17,410 |
Other comprehensive income (loss) | (1,346) |  | 0 |
Others (book value) | (23) |  | 0 |
Ending balance | 121,955 |  | 132,774 |
Korea Power Exchange |  |  |  |
Book value |  |  |  |
Beginning balance | 269,122 |  | 258,899 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (10) |  | 1,860 |
Other comprehensive income (loss) | 0 |  | 1 |
Others (book value) | 616 |  | 8,362 |
Ending balance | 269,728 |  | 269,122 |
DAYONE ENERGY Co., Ltd. (formerly, Hyundai Energy Co., Ltd.) |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  | 0 |
Acquisition |  |  | 0 |
Disposal |  |  | 0 |
Dividends received |  |  | 0 |
Share of profit (loss) |  |  | 0 |
Other comprehensive income (loss) |  |  | 0 |
Others (book value) |  |  | 0 |
Ending balance |  |  | 0 |
Ecollite Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  | 0 |
Acquisition |  |  | 0 |
Disposal |  |  | 0 |
Dividends received |  |  | 0 |
Share of profit (loss) |  |  | 0 |
Other comprehensive income (loss) |  |  | 0 |
Others (book value) |  |  | 0 |
Ending balance |  |  | 0 |
Taebaek Wind Power Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 6,392 |  | 7,039 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | (175) |
Share of profit (loss) | 408 |  | (472) |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 6,800 |  | 6,392 |
Taeback Guinemi Wind Power Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 3,087 |  | 2,553 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 270 |  | 534 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 3,357 |  | 3,087 |
Pyeongchang Wind Power Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 5,027 |  | 5,877 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | (813) |
Share of profit (loss) | 384 |  | (37) |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 5,411 |  | 5,027 |
Daeryun Power Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 26,353 |  | 26,247 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (927) |  | 104 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 2 |
Ending balance | 25,426 |  | 26,353 |
Changjuk Wind Power Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 7,867 |  | 8,520 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | (449) |  | (750) |
Share of profit (loss) | 937 |  | 97 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 8,355 |  | 7,867 |
KNH Solar Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 2,436 |  | 2,382 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (158) |  | 54 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 2,278 |  | 2,436 |
SPC Power Corporation |  |  |  |
Book value |  |  |  |
Beginning balance | 69,912 |  | 63,583 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | (20,468) |  | (10,764) |
Share of profit (loss) | 5,311 |  | 5,491 |
Other comprehensive income (loss) | 10,291 |  | 11,649 |
Others (book value) | 0 |  | (47) |
Ending balance | 65,046 |  | 69,912 |
Gemeng International Energy Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 679,708 |  | 670,896 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | (11,886) |  | (11,620) |
Share of profit (loss) | (154,930) |  | 15,965 |
Other comprehensive income (loss) | 82,326 |  | 4,468 |
Others (book value) | 0 |  | (1) |
Ending balance | 595,218 |  | 679,708 |
PT. Cirebon Electric Power |  |  |  |
Book value |  |  |  |
Beginning balance | 117,811 |  | 123,425 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | (18,253) |  | (9,782) |
Share of profit (loss) | 10,679 |  | 11,330 |
Other comprehensive income (loss) | 1,396 |  | 434 |
Others (book value) | 10,336 |  | (7,596) |
Ending balance | 121,969 |  | 117,811 |
KNOC Nigerian East Oil Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  | 0 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (14) |  | (22) |
Other comprehensive income (loss) | (938) |  | 671 |
Others (book value) | 952 |  | (649) |
Ending balance | 0 |  | 0 |
KNOC Nigerian West Oil Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  | 0 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (15) |  | (22) |
Other comprehensive income (loss) | (862) |  | 617 |
Others (book value) | 877 |  | (595) |
Ending balance | 0 |  | 0 |
PT Wampu Electric Power |  |  |  |
Book value |  |  |  |
Beginning balance | 27,865 |  | 29,355 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | (1,303) |
Share of profit (loss) | 3,196 |  | 3,245 |
Other comprehensive income (loss) | 1,355 |  | (1,639) |
Others (book value) | 2,661 |  | (1,793) |
Ending balance | 35,077 |  | 27,865 |
PT. Bayan Resources TBK |  |  |  |
Book value |  |  |  |
Beginning balance | 425,234 |  | 445,141 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | (68,666) |  | (15,720) |
Share of profit (loss) | 267,874 |  | 17,139 |
Other comprehensive income (loss) | 36,885 |  | (21,256) |
Others (book value) | (38) |  | (70) |
Ending balance | 661,289 |  | 425,234 |
S-Power Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 110,292 |  | 115,784 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 12,437 |  | (5,429) |
Other comprehensive income (loss) | 57 |  | 0 |
Others (book value) | 0 |  | (63) |
Ending balance | 122,786 |  | 110,292 |
Pioneer Gas Power Limited |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  | 0 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 0 |  | 0 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 0 |  | 0 |
Eurasia Energy Holdings |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  | 0 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 0 |  | 0 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 0 |  | 0 |
Xe-Pian Xe-Namnoy Power Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 64,570 |  | 72,935 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 19,306 |  | (2,896) |
Other comprehensive income (loss) | 8,565 |  | (5,469) |
Others (book value) | 0 |  | 0 |
Ending balance | 92,441 |  | 64,570 |
Hadong Mineral Fiber Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  | 0 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 0 |  | 0 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 0 |  | 0 |
Green Biomass Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  | 108 |
Acquisition |  |  | 0 |
Disposal |  |  | (108) |
Dividends received |  |  | 0 |
Share of profit (loss) |  |  | 0 |
Other comprehensive income (loss) |  |  | 0 |
Others (book value) |  |  | 0 |
Ending balance |  |  | 0 |
PT. Mutiara Jawa |  |  |  |
Book value |  |  |  |
Beginning balance | 1,780 |  | 1,438 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 630 |  | 459 |
Other comprehensive income (loss) | 159 |  | (117) |
Others (book value) | 0 |  | 0 |
Ending balance | 2,569 |  | 1,780 |
Samcheok Eco Materials Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  | 0 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 0 |  | 0 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 0 |  | 0 |
Noeul Green Energy Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 4,197 |  | 6,610 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (389) |  | (2,413) |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 3,808 |  | 4,197 |
Naepo Green Energy Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  | 0 |
Acquisition |  |  | 0 |
Disposal |  |  | 0 |
Dividends received |  |  | 0 |
Share of profit (loss) |  |  | (9,789) |
Other comprehensive income (loss) |  |  | 0 |
Others (book value) |  |  | 9,789 |
Ending balance |  |  | 0 |
Goseong Green Power Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 2,186 |  | 2,340 |
Acquisition | 259,840 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (1,168) |  | (154) |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 260,858 |  | 2,186 |
Gangneung Eco Power Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 2,368 |  | 2,430 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (80) |  | (62) |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 2,288 |  | 2,368 |
Shin Pyeongtaek Power Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 69,591 |  | 66,956 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 23,476 |  | 11,877 |
Other comprehensive income (loss) | 0 |  | (3,604) |
Others (book value) | 7 |  | (5,638) |
Ending balance | 93,074 |  | 69,591 |
Haeng Bok Do Si Photovoltaic Power Co Ltd |  |  |  |
Book value |  |  |  |
Beginning balance | 210 |  | 215 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 13 |  | (5) |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 223 |  | 210 |
Dongducheon Dream Power Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 80,637 |  | 76,547 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (6,439) |  | 4,095 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | (5) |
Ending balance | 74,198 |  | 80,637 |
Jinbhuvish Power Generation Pvt. Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  | 0 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 0 |  | 0 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 0 |  | 0 |
Daejung Offshore Wind Power Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 2,165 |  | 2,361 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (461) |  | (411) |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 215 |
Ending balance | 1,704 |  | 2,165 |
GS Donghae Electric Power Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 244,426 |  | 255,983 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | (15,640) |  | (25,796) |
Share of profit (loss) | 14,972 |  | 14,265 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 14 |  | (26) |
Ending balance | 243,772 |  | 244,426 |
Daegu Photovoltaic Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 2,066 |  | 2,060 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | (206) |  | (325) |
Share of profit (loss) | 482 |  | 331 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 2,342 |  | 2,066 |
Busan Green Energy Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 8,778 |  | 10,637 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (3,750) |  | (1,862) |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 4 |  | 3 |
Ending balance | 5,032 |  | 8,778 |
Gunsan Bio Energy Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  | 0 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 0 |  | 0 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 0 |  | 0 |
Korea Electric Vehicle Charging Service |  |  |  |
Book value |  |  |  |
Beginning balance | 576 |  | 1,063 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (283) |  | (491) |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 957 |  | 4 |
Ending balance | 1,250 |  | 576 |
Korea Nuclear Partners Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 200 |  | 0 |
Acquisition |  |  | 247 |
Disposal |  |  | 0 |
Dividends received |  |  | 0 |
Share of profit (loss) |  |  | (43) |
Other comprehensive income (loss) |  |  | (4) |
Others (book value) |  |  | 0 |
Ending balance |  |  | 200 |
Korea Electric Power Corporation Fund |  |  |  |
Book value |  |  |  |
Beginning balance | 41,926 |  | 41,126 |
Acquisition | 0 |  | 0 |
Disposal | (3,090) |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 9,065 |  | (908) |
Other comprehensive income (loss) | 82 |  | 1,708 |
Others (book value) | 0 |  | 0 |
Ending balance | 47,983 |  | 41,926 |
Energy Infra Asset Management Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 938 |  | 791 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 128 |  | 147 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 1,066 |  | 938 |
Daegu clean Energy Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 12 |  | 13 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 0 |  | (1) |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 12 |  | 12 |
Yaksu ESS Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 454 |  | 516 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 262 |  | (62) |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 716 |  | 454 |
Nepal Water & Energy Development Company Private Ltd |  |  |  |
Book value |  |  |  |
Beginning balance | 42,677 |  | 31,145 |
Acquisition | 19,960 |  | 14,697 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (616) |  | (1,699) |
Other comprehensive income (loss) | 4,312 |  | (1,466) |
Others (book value) | 0 |  | 0 |
Ending balance | 66,333 |  | 42,677 |
Gwangyang Green Energy Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 926 |  | 948 |
Acquisition | 24,800 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (138) |  | (22) |
Other comprehensive income (loss) | (122) |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 25,466 |  | 926 |
PND Solar Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 1,149 |  | 1,144 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 80 |  | 5 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 1,229 |  | 1,149 |
Hyundai Ecoenergy Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 4,250 |  | 3,781 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 1,322 |  | 469 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 5,572 |  | 4,250 |
YeongGwang Yaksu Wind Electric Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 312 |  | 386 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (79) |  | (74) |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 233 |  | 312 |
Green Energy Electricity Generation Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 25 |  | 163 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 1,688 |  | (138) |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 1,713 |  | 25 |
Korea Energy Solution Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 197 |  | 259 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (74) |  | (62) |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 123 |  | 197 |
ITR Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 40 |  | 33 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (8) |  | 7 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 32 |  | 40 |
Structure test network Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 27 |  | 21 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 279 |  | 6 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 306 |  | 27 |
Namjeongsusang Solar Power Operation Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 103 |  | 812 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 258 |  | (709) |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 361 |  | 103 |
Indeck Niles Development, LLC |  |  |  |
Book value |  |  |  |
Beginning balance | 20,627 |  | 0 |
Acquisition | 222,551 |  | 45,562 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (13,160) |  | (13,344) |
Other comprehensive income (loss) | 6,652 |  | (9,846) |
Others (book value) | 9,603 |  | (1,745) |
Ending balance | 246,273 | [2] | 20,627 |
Indeck Niles Asset Management, LLC |  |  |  |
Book value |  |  |  |
Beginning balance | 101 |  | 87 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | (539) |
Share of profit (loss) | 567 |  | 559 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | (557) |  | (6) |
Ending balance | 111 |  | 101 |
Hanwha Corporation-linked Sunlight Power Special Private Equity Investment Trust No. 1 |  |  |  |
Book value |  |  |  |
Beginning balance | 7,326 |  | 7,126 |
Acquisition | 0 |  | 294 |
Disposal | (188) |  | (99) |
Dividends received | 0 |  | (291) |
Share of profit (loss) | 399 |  | 296 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | (399) |  | 0 |
Ending balance | 7,138 |  | 7,326 |
Suwon New Power Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 1,054 |  | 798 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (5) |  | 256 |
Other comprehensive income (loss) | (14) |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 1,035 |  | 1,054 |
KPGE Inc. |  |  |  |
Book value |  |  |  |
Beginning balance | 287 |  | 287 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 22 |  | 0 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 309 |  | 287 |
Gwangbaek Solar Power Investment Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 4,682 |  | 2,054 |
Acquisition | 0 |  | 2,703 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 124 |  | (75) |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 4,806 |  | 4,682 |
Go deok Clean Energy Co., Ltd |  |  |  |
Book value |  |  |  |
Beginning balance | 960 |  | 1,830 |
Acquisition | 3,730 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (333) |  | (843) |
Other comprehensive income (loss) | (55) |  | (27) |
Others (book value) | 0 |  | 0 |
Ending balance | 4,302 |  | 960 |
SureDataLab Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 85 |  | 0 |
Acquisition | 0 |  | 126 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 43 |  | (41) |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 128 |  | 85 |
SEP Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 14 |  | 0 |
Acquisition | 0 |  | 27 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (7) |  | (13) |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 7 |  | 14 |
Hankook Electric Power Information Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 139 |  | 0 |
Acquisition | 0 |  | 38 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 22 |  | 101 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 161 |  | 139 |
Tronix Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 119 |  | 0 |
Acquisition | 0 |  | 75 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (10) |  | 44 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 109 |  | 119 |
O2&B Global Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 22 |  | 0 |
Acquisition | 0 |  | 25 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 13 |  | (3) |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 35 |  | 22 |
Muan Sunshine Solar Power Plant Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 1,096 |  | 0 |
Acquisition | 0 |  | 79 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 172 |  | (475) |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 1,492 |
Ending balance | 1,268 |  | 1,096 |
Bigeum Resident Photovoltaic Power Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  | 0 |
Acquisition | 0 |  | 0 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 0 |  | 0 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 0 |  | 0 |
Jeju SolarOne Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 159 |  | 0 |
Acquisition | 45 |  | 161 |
Disposal | (206) |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (1) |  | 0 |
Other comprehensive income (loss) | 0 |  | (2) |
Others (book value) | 3 |  | 0 |
Ending balance | 0 |  | 159 |
Energy Innovation Fund I |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  | 0 |
Acquisition |  |  | 4,000 |
Disposal |  |  | 0 |
Dividends received |  |  | (2) |
Share of profit (loss) |  |  | (159) |
Other comprehensive income (loss) |  |  | 0 |
Others (book value) |  |  | (3,839) |
Ending balance |  |  | 0 |
Goesan Solar Park Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 1,684 |  | 0 |
Acquisition | 0 |  | 1,276 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 249 |  | 408 |
Other comprehensive income (loss) | (6) |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 1,927 |  | 1,684 |
Saemangeum Heemang Photovoltaic Co.,Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 11,022 |  | 0 |
Acquisition | 0 |  | 11,022 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (784) |  | 0 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 10,238 |  | 11,022 |
Bitgoel Eco Energy Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 29 |  | 0 |
Acquisition | 4,611 |  | 29 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (261) |  | 0 |
Other comprehensive income (loss) | (23) |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 4,356 |  | 29 |
Jeju Gimnyeong Wind Power Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 1,578 |  | 0 |
Acquisition | 0 |  | 714 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (665) |  | 864 |
Other comprehensive income (loss) | (2) |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 911 |  | 1,578 |
Seoroseoro Sunny Power Plant Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 230 |  | 0 |
Acquisition | 476 |  | 230 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 15 |  | 0 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 721 |  | 230 |
Muan Solar Park Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 4,180 |  | 0 |
Acquisition | 220 |  | 4,180 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 1,683 |  | 0 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 6,083 |  | 4,180 |
YuDang Solar Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 360 |  | 0 |
Acquisition | 0 |  | 360 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 205 |  | 0 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 565 |  | 360 |
Anjwa Smart Farm & Solar City Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 5,510 |  | 0 |
Acquisition | 141 |  | 5,510 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | 1,133 |  | 0 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 6,784 |  | 5,510 |
Daewon Green Energy Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 3,910 |  | 0 |
Acquisition | 0 |  | 3,910 |
Disposal | 0 |  | 0 |
Dividends received | 0 |  | 0 |
Share of profit (loss) | (33) |  | 0 |
Other comprehensive income (loss) | 0 |  | 0 |
Others (book value) | 0 |  | 0 |
Ending balance | 3,877 |  | 3,910 |
Hansuwon KNP Co., Ltd. (formerly, Korea Nuclear Partners Co., Ltd.) |  |  |  |
Book value |  |  |  |
Beginning balance | 200 |  |  |
Acquisition | 0 |  |  |
Disposal | 0 |  |  |
Dividends received | 0 |  |  |
Share of profit (loss) | 19 |  |  |
Other comprehensive income (loss) | 0 |  |  |
Others (book value) | 0 |  |  |
Ending balance | 219 |  | 200 |
G.GURU Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  |  |
Acquisition | 493 |  |  |
Disposal | 0 |  |  |
Dividends received | 0 |  |  |
Share of profit (loss) | (90) |  |  |
Other comprehensive income (loss) | 0 |  |  |
Others (book value) | 0 |  |  |
Ending balance | 403 |  | 0 |
UD4M Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  |  |
Acquisition | 75 |  |  |
Disposal | 0 |  |  |
Dividends received | 0 |  |  |
Share of profit (loss) | 217 |  |  |
Other comprehensive income (loss) | 0 |  |  |
Others (book value) | (148) |  |  |
Ending balance | 144 |  | 0 |
Dongbu Highway Solar Co.,Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  |  |
Acquisition | 0 |  |  |
Disposal | 0 |  |  |
Dividends received | 0 |  |  |
Share of profit (loss) | 74 |  |  |
Other comprehensive income (loss) | 0 |  |  |
Others (book value) | 191 |  |  |
Ending balance | 265 |  | 0 |
Seobu Highway Solar Co.,Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  |  |
Acquisition | 0 |  |  |
Disposal | 0 |  |  |
Dividends received | 0 |  |  |
Share of profit (loss) | 94 |  |  |
Other comprehensive income (loss) | 0 |  |  |
Others (book value) | 195 |  |  |
Ending balance | 289 |  | 0 |
Korea Energy Data Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  |  |
Acquisition | 60 |  |  |
Disposal | 0 |  |  |
Dividends received | 0 |  |  |
Share of profit (loss) | 2 |  |  |
Other comprehensive income (loss) | 0 |  |  |
Others (book value) | 0 |  |  |
Ending balance | 62 |  | 0 |
Gangneung Sacheon Fuel Cell Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  |  |
Acquisition | 1,950 |  |  |
Disposal | 0 |  |  |
Dividends received | 0 |  |  |
Share of profit (loss) | (72) |  |  |
Other comprehensive income (loss) | 0 |  |  |
Others (book value) | 0 |  |  |
Ending balance | 1,878 |  | 0 |
Kosture Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  |  |
Acquisition | 0 |  |  |
Disposal | 0 |  |  |
Dividends received | 0 |  |  |
Share of profit (loss) | 0 |  |  |
Other comprehensive income (loss) | 0 |  |  |
Others (book value) | 0 |  |  |
Ending balance | 0 |  | 0 |
Digital Innovation Growth Fund |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  |  |
Acquisition | 10,000 |  |  |
Disposal | 0 |  |  |
Dividends received | 0 |  |  |
Share of profit (loss) | (110) |  |  |
Other comprehensive income (loss) | 0 |  |  |
Others (book value) | 0 |  |  |
Ending balance | 9,890 | [3] | 0 |
Taebaek Gadeoksan Wind Power Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  |  |
Acquisition | 0 |  |  |
Disposal | 0 |  |  |
Dividends received | 0 |  |  |
Share of profit (loss) | 2,532 |  |  |
Other comprehensive income (loss) | 0 |  |  |
Others (book value) | 13,963 |  |  |
Ending balance | 16,495 |  | 0 |
Chuncheon Green Energy Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  |  |
Acquisition | 3,400 |  |  |
Disposal | 0 |  |  |
Dividends received | 0 |  |  |
Share of profit (loss) | (28) |  |  |
Other comprehensive income (loss) | 0 |  |  |
Others (book value) | 0 |  |  |
Ending balance | 3,372 | [4] | 0 |
Yeomsubong Wind Power Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  |  |
Acquisition | 95 |  |  |
Disposal | 0 |  |  |
Dividends received | 0 |  |  |
Share of profit (loss) | 0 |  |  |
Other comprehensive income (loss) | 0 |  |  |
Others (book value) | 0 |  |  |
Ending balance | 95 |  | 0 |
Yeongyang Wind Power Corporation II |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  |  |
Acquisition | 7,965 |  |  |
Disposal | 0 |  |  |
Dividends received | 0 |  |  |
Share of profit (loss) | 0 |  |  |
Other comprehensive income (loss) | 0 |  |  |
Others (book value) | 0 |  |  |
Ending balance | 7,965 |  | 0 |
Haeparang Energy Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  |  |
Acquisition | 2,241 |  |  |
Disposal | 0 |  |  |
Dividends received | 0 |  |  |
Share of profit (loss) | 0 |  |  |
Other comprehensive income (loss) | 0 |  |  |
Others (book value) | 0 |  |  |
Ending balance | 2,241 |  | 0 |
Saemangeum Sebit Power Plant Co., Ltd. |  |  |  |
Book value |  |  |  |
Beginning balance | 0 |  |  |
Acquisition | 6,000 |  |  |
Disposal | 0 |  |  |
Dividends received | 0 |  |  |
Share of profit (loss) | 0 |  |  |
Other comprehensive income (loss) | 0 |  |  |
Others (book value) | 0 |  |  |
Ending balance | ₩ 6,000 | [4] | ₩ 0 |
[1] | The effective percentage of ownership is 22.02% considering treasury stocks.
[2] | According to the shareholders’ agreement, additional investment of 50% of total stake is agreed by March 2022.
[3] | The effective percentage of ownership is more than 50% but the Company does not hold control over relevant business while it exercises significant influence by participating in the Investment Decision Committee. Accordingly, the entity is classified as an associate.
[4] | The effective percentage of ownership is more than 50% but the Company does not hold control over relevant business while it exercises significant influence by participating in the Investment Decision Committee. Accordingly, the entity is classified as an associate.

X
- Definition The cash inflow representing dividends received from associates, classified as investing activities. [Refer: Associates [member]; Dividends received] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 16 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_16&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_DividendsReceivedFromAssociatesClassifiedAsInvestingActivities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of investments in associates accounted for using the equity method. [Refer: Associates [member]; Investments accounted for using equity method] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_InvestmentsInAssociatesAccountedForUsingEquityMethod
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The entity's share of the profit (loss) of associates accounted for using the equity method. [Refer: Associates [member]; Investments accounted for using equity method; Profit (loss)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_85&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | kep_ChangeInInvestmentsInAssociatesAccountedForUsingEquityMethodAbstract
Namespace Prefix: | kep_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | kep_DecreaseOfInvestmentsInAssociates
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | kep_IncreaseDecreaseOfInvestmentsInAssociatesForOtherReasons
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | kep_IncreaseOfInvestmentsInAssociates
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | kep_ShareOfOtherComprehensiveIncomeOfAssociatesAccountedForUsingEquityMethod
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_KoreaGasCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_KoreaElectricPowerIndustrialDevelopmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_YTNMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_CheongnaEnergyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_GangwonWindPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_HyundaiGreenPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_KoreaPowerExchangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_DayoneEnergyCo.Ltd.FormerlyHyundaiEnergyCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_EcolliteMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_TaebaekWindPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_TaebackGuinemiWindPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_PyeongchangWindPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_DaeryunPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_ChangjukWindPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_KNHSolarMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_SPCPowerCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_GemengInternationalEnergyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_PTCirebonElectricPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_KNOCNigerianEastOilMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_KNOCNigerianWestOilMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_PTWampuElectricPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_PTBayanResourcesTBKMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_SPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_PioneerGasPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_EurasiaEnergyHoldingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_XePianXeNamnoyPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_HadongMineralFiberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_GreenBiomassMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_PTMutiaraJawaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_SamcheokEcoMaterialsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_NoeulGreenEnergyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_NaepoGreenEnergyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_GoseongGreenPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_GangneungEcoPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_ShinPyeongtaekPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_HaengBokDoSiPhotovoltaicPowerCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_DongducheonDreamPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_JinbhuvishPowerGenerationPvtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_DaejungOffshoreWindPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_GSDonghaeElectricPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_DaeguPhotovoltaicMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_BusanGreenEnergyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_GunsanBioEnergyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_KoreaElectricVehicleChargingServiceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_KoreaNuclearPartnersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_KoreaElectricPowerCorporationFundMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_EnergyInfraAssetManagementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_DaegucleanEnergyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_YaksuESSLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_NepalWaterEnergyDevelopmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_GwangyangGreenEnergyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_PNDSolarMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_HyundaiEcoEnergyCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_YeongGwangYaksuWindElectricCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_GreenEnergyElectricityGenerationCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_KoreaEnergySolutionsCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_ITRCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_StructureTestNetworkCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_NamjeongsusangSolarPowerOperationCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_IndeckNilesDevelopmentLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_IndeckNilesAssetManagementLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_HanwhaCorporation-linkedSunlightPowerSpecialPrivateEquityInvestmentTrustNo1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_SuwonNewPowerCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_KPGEIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_GwangbaekSolarPowerInvestmentCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_GoDeokCleanEnergyCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_SureDataLabCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_SEPCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_HankookElectricPowerInformationCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_TronixCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_O2BGlobalCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_MuanSunshineSolarPowerPlantCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_BigeumResidentPhotovoltaicPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_JejuSolarOneCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_EnergyInnovationFundIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_GoesanSolarParkCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_SaemangeumHeemangPhotovoltaicCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_BitgoelEcoEnergyCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_JejuGimnyeongWindPowerCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_SeoroseoroSunnyPowerPlantCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_MuanSolarParkCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_YuDangSolarCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_AnjwaSmartFarmSolarCityCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_DaewonGreenEnergyCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_HansuwonKnpCoLtdFormerlyKoreaNuclearPartnersCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_G.guruCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_Ud4mCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_DongbuHighwaySolarCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_SeobuHighwaySolarCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_KoreaEnergyDataCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_GangneungSacheonFuelCellCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_KostureCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_DigitalInnovationGrowthFundMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_TaebaekGadeoksanWindPowerCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_ChuncheonGreenEnergyCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_YeomsubongWindPowerCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_YeongyangWindPowerCorporationIiMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_HaeparangEnergyCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_SaemangeumSebitPowerPlantCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |