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Investments in Associates 3 (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Korea Gas Corporation |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | ₩ 62,424,983 | [1] | ₩ 43,669,902 | [2]
Total liabilities | 52,014,243 | [1] | 34,550,567 | [2]
Sales of Associates | 51,724,287 | [1] | 27,520,756 | [2]
Profit (loss) for the period of Associates | 1,497,008 | [1] | 950,757 | [2]
Korea Electric Power Industrial Development Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 148,112 |  | 158,163 |
Total liabilities | 40,946 |  | 73,278 |
Sales of Associates | 336,333 |  | 312,705 |
Profit (loss) for the period of Associates | 15,434 |  | 7,233 |
YTN Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 364,115 |  | 367,950 |
Total liabilities | 107,324 |  | 126,062 |
Sales of Associates | 152,187 |  | 137,439 |
Profit (loss) for the period of Associates | 7,250 |  | 51,044 |
Gangwon Wind Power Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 86,758 |  | 71,153 |
Total liabilities | 6,029 |  | 1,121 |
Sales of Associates | 40,130 |  | 19,623 |
Profit (loss) for the period of Associates | 20,163 |  | 5,433 |
Hyundai Green Power Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 773,998 |  | 812,287 |
Total liabilities | 360,926 |  | 391,754 |
Sales of Associates | 105,374 |  | 101,818 |
Profit (loss) for the period of Associates | 5,010 |  | (280) |
Korea Power Exchange |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 311,691 |  | 331,640 |
Total liabilities | 36,564 |  | 61,912 |
Sales of Associates | 118,501 |  | 110,075 |
Profit (loss) for the period of Associates | 1,036 |  | 492 |
Taebaek Wind Power Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 27,562 |  | 30,375 |
Total liabilities | 3,394 |  | 3,176 |
Sales of Associates | 7,565 |  | 5,744 |
Profit (loss) for the period of Associates | 551 |  | 1,588 |
Taebaek Guinemi Wind Power Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 44,036 |  | 43,411 |
Total liabilities | 28,709 |  | 29,985 |
Sales of Associates | 6,793 |  | 5,910 |
Profit (loss) for the period of Associates | 1,906 |  | 1,371 |
Pyeongchang Wind Power Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets |  |  | 69,939 |
Total liabilities |  |  | 48,295 |
Sales of Associates |  |  | 10,087 |
Profit (loss) for the period of Associates |  |  | 1,537 |
Daeryun Power Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 1,201,510 |  | 757,157 |
Total liabilities | 799,370 |  | 476,152 |
Sales of Associates | 472,211 |  | 188,193 |
Profit (loss) for the period of Associates | 4,999 |  | (10,232) |
Changjuk Wind Power Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets |  |  | 29,539 |
Total liabilities |  |  | 1,690 |
Sales of Associates |  |  | 6,213 |
Profit (loss) for the period of Associates |  |  | 3,265 |
KNH Solar Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 13,584 |  | 13,859 |
Total liabilities | 2,905 |  | 5,423 |
Sales of Associates | 4,348 |  | 3,222 |
Profit (loss) for the period of Associates | 2,173 |  | 805 |
SPC Power Corporation |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 254,951 |  | 242,058 |
Total liabilities | 26,417 |  | 18,535 |
Sales of Associates | 80,630 |  | 54,042 |
Profit (loss) for the period of Associates | 25,614 |  | 35,441 |
Gemeng International Energy Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 7,796,180 |  | 8,151,333 |
Total liabilities | 5,460,183 |  | 5,976,164 |
Sales of Associates | 3,183,398 |  | 2,511,377 |
Profit (loss) for the period of Associates | 11,637 |  | (404,570) |
PT. Cirebon Electric Power |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 691,311 |  | 697,614 |
Total liabilities | 199,987 |  | 254,089 |
Sales of Associates | 287,261 |  | 273,650 |
Profit (loss) for the period of Associates | 53,730 |  | 39,965 |
KNOC Nigerian East Oil Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 26,491 |  | 24,693 |
Total liabilities | 109,974 |  | 102,722 |
Sales of Associates | 0 |  | 0 |
Profit (loss) for the period of Associates | (72) |  | (99) |
KNOC Nigerian West Oil Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 28,537 |  | 26,625 |
Total liabilities | 105,292 |  | 98,360 |
Sales of Associates | 0 |  | 0 |
Profit (loss) for the period of Associates | (72) |  | (99) |
PT Wampu Electric Power |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 209,815 |  | 209,172 |
Total liabilities | 127,764 |  | 132,917 |
Sales of Associates | 21,773 |  | 20,294 |
Profit (loss) for the period of Associates | 12,713 |  | 7,102 |
PT. Bayan Resources TBK |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 4,994,538 |  | 2,884,474 |
Total liabilities | 2,518,129 |  | 743,452 |
Sales of Associates | 6,076,844 |  | 3,264,057 |
Profit (loss) for the period of Associates | 3,042,123 |  | 1,456,893 |
S-Power Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 937,067 |  | 856,963 |
Total liabilities | 646,411 |  | 603,519 |
Sales of Associates | 1,091,425 |  | 608,259 |
Profit (loss) for the period of Associates | 37,104 |  | 24,998 |
Pioneer Gas Power Limited |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 271,340 |  | 282,577 |
Total liabilities | 477,127 |  | 438,366 |
Sales of Associates | 0 |  | 0 |
Profit (loss) for the period of Associates | (46,290) |  | (36,864) |
Eurasia Energy Holdings |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 648 |  | 606 |
Total liabilities | 1,156 |  | 1,082 |
Sales of Associates | 0 |  | 0 |
Profit (loss) for the period of Associates | 0 |  | 0 |
Xe-Pian Xe-Namnoy Power Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 1,371,292 |  | 1,321,406 |
Total liabilities | 904,907 |  | 947,430 |
Sales of Associates | 174,693 |  | 161,686 |
Profit (loss) for the period of Associates | 61,020 |  | 76,996 |
PT. Mutiara Jawa |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 26,024 |  | 24,355 |
Total liabilities | 13,622 |  | 15,498 |
Sales of Associates | 15,421 |  | 10,958 |
Profit (loss) for the period of Associates | 4,912 |  | 2,835 |
Samcheok Eco Materials Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 24,952 |  | 26,545 |
Total liabilities | 1,609 |  | 1,854 |
Sales of Associates | 11,907 |  | 14,281 |
Profit (loss) for the period of Associates | (1,127) |  | 1,237 |
Noeul Green Energy Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 82,611 |  | 109,354 |
Total liabilities | 101,472 |  | 96,222 |
Sales of Associates | 23,493 |  | 36,029 |
Profit (loss) for the period of Associates | (31,970) |  | (1,269) |
Goseong Green Power Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 5,518,258 |  | 5,483,090 |
Total liabilities | 4,516,607 |  | 4,508,569 |
Sales of Associates | 1,999,825 |  | 988,933 |
Profit (loss) for the period of Associates | 26,981 |  | 124,639 |
Gangneung Eco Power Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 4,907,872 |  | 4,001,681 |
Total liabilities | 4,900,408 |  | 3,851,537 |
Sales of Associates | 435,755 |  | 0 |
Profit (loss) for the period of Associates | (142,387) |  | (4,188) |
Shin Pyeongtaek Power Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 1,203,406 |  | 1,028,028 |
Total liabilities | 839,568 |  | 764,551 |
Sales of Associates | 957,062 |  | 653,117 |
Profit (loss) for the period of Associates | 100,554 |  | 57,202 |
Haeng Bok Do Si Photovoltaic Power Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 1,788 |  | 1,823 |
Total liabilities | 802 |  | 1,033 |
Sales of Associates | 558 |  | 426 |
Profit (loss) for the period of Associates | 200 |  | 46 |
Dongducheon Dream Power Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 1,521,089 |  | 1,398,244 |
Total liabilities | 1,219,018 |  | 1,139,521 |
Sales of Associates | 2,240,175 |  | 750,127 |
Profit (loss) for the period of Associates | 43,072 |  | (16,685) |
Jinbhuvish Power Generation Pvt. Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 60,477 |  | 62,926 |
Total liabilities | 12,489 |  | 12,995 |
Sales of Associates | 0 |  | 0 |
Profit (loss) for the period of Associates | 0 |  | 0 |
Daejung Offshore Wind Power Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 5,350 |  | 5,321 |
Total liabilities | 2,013 |  | 1,664 |
Sales of Associates | 0 |  | 0 |
Profit (loss) for the period of Associates | (228) |  | (149) |
GS Donghae Electric Power Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 2,130,287 |  | 2,149,060 |
Total liabilities | 1,365,156 |  | 1,432,083 |
Sales of Associates | 1,053,112 |  | 760,323 |
Profit (loss) for the period of Associates | 46,226 |  | 44,035 |
Daegu Photovoltaic Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 13,254 |  | 13,046 |
Total liabilities | 3,431 |  | 4,970 |
Sales of Associates | 4,755 |  | 3,519 |
Profit (loss) for the period of Associates | 2,914 |  | 1,621 |
Busan Green Energy Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 168,588 |  | 163,016 |
Total liabilities | 153,432 |  | 145,664 |
Sales of Associates | 72,290 |  | 45,088 |
Profit (loss) for the period of Associates | (7,409) |  | (10,843) |
Gunsan Bio Energy Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 8,397 |  | 8,503 |
Total liabilities | 29,524 |  | 28,981 |
Sales of Associates | 0 |  | 0 |
Profit (loss) for the period of Associates | (649) |  | (1,496) |
Korea Electric Vehicle Charging Service |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets |  |  | 13,351 |
Total liabilities |  |  | 6,207 |
Sales of Associates |  |  | 13,808 |
Profit (loss) for the period of Associates |  |  | (1,022) |
Hansuwon KNP Co., Ltd. (formerly, Korea Nuclear Partners Co., Ltd.) |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 1,887 |  | 1,409 |
Total liabilities | 368 |  | 100 |
Sales of Associates | 2,149 |  | 836 |
Profit (loss) for the period of Associates | 210 |  | 64 |
Korea Electric Power Corporation Fund |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 29,530 |  | 49,150 |
Total liabilities | 130 |  | 237 |
Sales of Associates | 8,034 |  | 9,773 |
Profit (loss) for the period of Associates | 7,854 |  | 9,534 |
Energy Infra Asset Management Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 12,874 |  | 11,196 |
Total liabilities | 918 |  | 426 |
Sales of Associates | 4,954 |  | 4,703 |
Profit (loss) for the period of Associates | 1,354 |  | 1,306 |
Daegu clean Energy Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 368 |  | 368 |
Total liabilities | 324 |  | 324 |
Sales of Associates | 0 |  | 0 |
Profit (loss) for the period of Associates | (1) |  | (1) |
YaksuESS Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets |  |  | 6,999 |
Total liabilities |  |  | 4,535 |
Sales of Associates |  |  | 1,715 |
Profit (loss) for the period of Associates |  |  | 903 |
YaksuESS Co., Ltd |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 5,984 |  |  |
Total liabilities | 4,314 |  |  |
Sales of Associates | 851 |  |  |
Profit (loss) for the period of Associates | (146) |  |  |
Nepal Water & Energy Development Company Private Limited |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 241,061 |  | 153,184 |
Total liabilities | 141,199 |  | 58,545 |
Sales of Associates | 70,923 |  | 0 |
Profit (loss) for the period of Associates | (1,364) |  | (642) |
Gwangyang Green Energy Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 170,390 |  | 128,375 |
Total liabilities | 45,260 |  | 1,136 |
Sales of Associates | 0 |  | 0 |
Profit (loss) for the period of Associates | (1,923) |  | (688) |
PND Solar Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 36,174 |  | 37,152 |
Total liabilities | 31,868 |  | 33,444 |
Sales of Associates | 5,940 |  | 5,078 |
Profit (loss) for the period of Associates | 217 |  | (128) |
Hyundai Eco Energy Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 181,566 |  | 186,309 |
Total liabilities | 142,533 |  | 158,111 |
Sales of Associates | 29,209 |  | 25,762 |
Profit (loss) for the period of Associates | 10,270 |  | 6,921 |
YeongGwang Yaksu Wind Electric Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 40,712 |  | 40,484 |
Total liabilities | 39,924 |  | 41,176 |
Sales of Associates | 6,628 |  | 7,066 |
Profit (loss) for the period of Associates | 1,480 |  | (914) |
Green Energy Electricity Generation Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 75,033 |  | 75,664 |
Total liabilities | 72,300 |  | 72,442 |
Sales of Associates | 1,404 |  | 2,796 |
Profit (loss) for the period of Associates | (488) |  | (58) |
Korea Energy Solutions Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 843 |  | 654 |
Total liabilities | 377 |  | 40 |
Sales of Associates | 437 |  | 228 |
Profit (loss) for the period of Associates | (185) |  | (347) |
ITR Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 446 |  | 529 |
Total liabilities | 472 |  | 372 |
Sales of Associates | 188 |  | 135 |
Profit (loss) for the period of Associates | (190) |  | (29) |
Structure test network Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 1,948 |  | 1,665 |
Total liabilities | 383 |  | 400 |
Sales of Associates | 732 |  | 1,451 |
Profit (loss) for the period of Associates | 202 |  | 1,134 |
Namjeongsusang Solar Power Operation Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 55,616 |  | 56,376 |
Total liabilities | 53,261 |  | 54,104 |
Sales of Associates | 7,724 |  | 7,095 |
Profit (loss) for the period of Associates | 83 |  | (1,280) |
Indeck Niles Development, LLC |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 1,178,303 |  | 1,051,557 |
Total liabilities | 762,139 |  | 729,078 |
Sales of Associates | 302,041 |  | 0 |
Profit (loss) for the period of Associates | (22,541) |  | (25,184) |
Indeck Niles Asset Management, LLC |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 299 |  | 347 |
Total liabilities | 16 |  | 13 |
Sales of Associates | 1,863 |  | 2,232 |
Profit (loss) for the period of Associates | 1,136 |  | 1,135 |
Hanwha Corporation-linked Sunlight Power Special Private Equity Investment Trust No. 1 |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 14,356 |  | 14,778 |
Total liabilities | 210 |  | 211 |
Sales of Associates | 826 |  | 848 |
Profit (loss) for the period of Associates | 796 |  | 815 |
Suwon New Power Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 2,142 |  | 1,997 |
Total liabilities | 164 |  | 30 |
Sales of Associates | 0 |  | 0 |
Profit (loss) for the period of Associates | 11 |  | 2 |
KPGE Inc. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets |  |  | 1,086 |
Total liabilities |  |  | 20 |
Sales of Associates |  |  | 709 |
Profit (loss) for the period of Associates |  |  | 77 |
Gwangbaek Solar Power Investment Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 307,864 |  | 320,001 |
Total liabilities | 296,915 |  | 309,796 |
Sales of Associates | 10,270 |  | 14,615 |
Profit (loss) for the period of Associates | 743 |  | 125 |
Go deok Clean Energy Co., Ltd |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 71,431 |  | 65,566 |
Total liabilities | 60,382 |  | 54,811 |
Sales of Associates | 0 |  | 0 |
Profit (loss) for the period of Associates | (1,101) |  | (2,482) |
SureDataLab Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 879 |  | 612 |
Total liabilities | 140 |  | 79 |
Sales of Associates | 938 |  | 733 |
Profit (loss) for the period of Associates | 203 |  | 205 |
SEP Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 38 |  | 132 |
Total liabilities | 103 |  | 100 |
Sales of Associates | 0 |  | 0 |
Profit (loss) for the period of Associates | (98) |  | (2) |
Hankook Electric Power Information Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 2,334 |  | 1,512 |
Total liabilities | 997 |  | 876 |
Sales of Associates | 1,797 |  | 1,887 |
Profit (loss) for the period of Associates | 392 |  | 229 |
Tronix Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 2,880 |  | 1,002 |
Total liabilities | 2,354 |  | 455 |
Sales of Associates | 1,938 |  | 2,228 |
Profit (loss) for the period of Associates | (226) |  | 89 |
O2&B Global Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 419 |  | 231 |
Total liabilities | 238 |  | 54 |
Sales of Associates | 220 |  | 345 |
Profit (loss) for the period of Associates | 5 |  | 3 |
Muan Sunshine Solar Power Plant Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 142,911 |  | 142,858 |
Total liabilities | 132,573 |  | 138,987 |
Sales of Associates | 19,591 |  | 15,582 |
Profit (loss) for the period of Associates | 6,467 |  | (156) |
Bigeum Resident Photovoltaic Power Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 107,690 |  | 22,159 |
Total liabilities | 109,229 |  | 23,158 |
Sales of Associates | 0 |  | 0 |
Profit (loss) for the period of Associates | (537) |  | (608) |
Goesan Solar Park Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 52,235 |  | 52,443 |
Total liabilities | 43,299 |  | 45,799 |
Sales of Associates | 7,642 |  | 6,388 |
Profit (loss) for the period of Associates | 2,292 |  | 836 |
Saemangeum Heemang Photovoltaic Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 160,695 |  | 157,298 |
Total liabilities | 125,635 |  | 130,158 |
Sales of Associates | 29,543 |  | 902 |
Profit (loss) for the period of Associates | 6,481 |  | (2,237) |
Bitgoel Eco Energy Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 85,236 |  | 51,471 |
Total liabilities | 66,987 |  | 36,450 |
Sales of Associates | 10,054 |  | 0 |
Profit (loss) for the period of Associates | 3,229 |  | (900) |
Jeju Gimnyeong Wind Power Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 63,471 |  | 65,754 |
Total liabilities | 60,564 |  | 62,716 |
Sales of Associates | 12,231 |  | 6,915 |
Profit (loss) for the period of Associates | (130) |  | (2,085) |
Seoroseoro Sunny Power Plant Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 7,015 |  | 5,833 |
Total liabilities | 5,045 |  | 4,186 |
Sales of Associates | 1,157 |  | 469 |
Profit (loss) for the period of Associates | 247 |  | 36 |
Muan Solar Park Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 225,894 |  | 226,920 |
Total liabilities | 188,329 |  | 198,132 |
Sales of Associates | 36,081 |  | 30,990 |
Profit (loss) for the period of Associates | 11,339 |  | 8,639 |
YuDang Solar Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 22,073 |  | 22,430 |
Total liabilities | 19,144 |  | 19,604 |
Sales of Associates | 3,997 |  | 3,452 |
Profit (loss) for the period of Associates | 957 |  | 626 |
Anjwa Smart Farm & Solar City Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 278,806 |  | 278,981 |
Total liabilities | 239,581 |  | 249,143 |
Sales of Associates | 42,477 |  | 37,691 |
Profit (loss) for the period of Associates | 9,672 |  | 5,996 |
Daewon Green Energy Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 141,974 |  | 131,218 |
Total liabilities | 124,460 |  | 116,100 |
Sales of Associates | 45,095 |  | 18 |
Profit (loss) for the period of Associates | 4,037 |  | (130) |
G.GURU Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 1,228 |  | 1,644 |
Total liabilities | 12 |  | 8 |
Sales of Associates | 478 |  | 58 |
Profit (loss) for the period of Associates | (423) |  | (346) |
UD4M Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 1,322 |  | 1,359 |
Total liabilities | 197 |  | 205 |
Sales of Associates | 1,109 |  | 1,004 |
Profit (loss) for the period of Associates | 59 |  | 196 |
Dongbu Highway Solar Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 17,935 |  | 18,794 |
Total liabilities | 16,426 |  | 17,721 |
Sales of Associates | 2,901 |  | 2,394 |
Profit (loss) for the period of Associates | 439 |  | 163 |
Seobu Highway Solar Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 18,236 |  | 19,828 |
Total liabilities | 16,655 |  | 18,384 |
Sales of Associates | 3,052 |  | 2,647 |
Profit (loss) for the period of Associates | 138 |  | 315 |
Korea Energy Data Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 339 |  | 238 |
Total liabilities | 128 |  | 27 |
Sales of Associates | 308 |  | 86 |
Profit (loss) for the period of Associates | 5 |  | 6 |
Gangneung Sacheon Fuel Cell Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 108,688 |  | 2,758 |
Total liabilities | 98,470 |  | 3 |
Sales of Associates | 0 |  | 0 |
Profit (loss) for the period of Associates | (2,720) |  | (123) |
Kosture Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 180 |  | 150 |
Total liabilities | 24 |  | 26 |
Sales of Associates | 293 |  | 166 |
Profit (loss) for the period of Associates | 32 |  | 11 |
Digital Innovation Growth Fund |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets |  |  | 12,857 |
Total liabilities |  |  | 0 |
Sales of Associates |  |  | 4 |
Profit (loss) for the period of Associates |  |  | (143) |
Taebaek Gadeoksan Wind Power Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 197,944 |  | 166,172 |
Total liabilities | 139,004 |  | 124,570 |
Sales of Associates | 31,534 |  | 22,773 |
Profit (loss) for the period of Associates | 19,406 |  | 8,732 |
Chuncheon Green Energy Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 159,151 |  | 4,901 |
Total liabilities | 138,925 |  | 20 |
Sales of Associates | 0 |  | 0 |
Profit (loss) for the period of Associates | (858) |  | (101) |
Yeomsubong Wind Power Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 4,369 |  | 400 |
Total liabilities | 2,829 |  | 396 |
Sales of Associates | 0 |  | 0 |
Profit (loss) for the period of Associates | (859) |  | (17) |
Yeongyang Wind Power Corporation II |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 104,821 |  | 28,972 |
Total liabilities | 86,984 |  | 9,456 |
Sales of Associates | 0 |  | 0 |
Profit (loss) for the period of Associates | (1,678) |  | (1,233) |
Haeparang Energy Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 19,394 |  | 9,566 |
Total liabilities | 10,721 |  | 681 |
Sales of Associates | 0 |  | 0 |
Profit (loss) for the period of Associates | (211) |  | (2) |
Saemangeum Sebit Power Plant Co., Ltd. |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 167,822 |  | 105,259 |
Total liabilities | 131,383 |  | 96,963 |
Sales of Associates | 23,159 |  | 0 |
Profit (loss) for the period of Associates | 7,742 |  | ₩ (190) |
Boulder Solar III, LLC |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 1,896 |  |  |
Total liabilities | 0 |  |  |
Sales of Associates | 0 |  |  |
Profit (loss) for the period of Associates | 0 |  |  |
PlatformN. Co., Ltd |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 379 |  |  |
Total liabilities | 94 |  |  |
Sales of Associates | 486 |  |  |
Profit (loss) for the period of Associates | (70) |  |  |
PT. Cirebon Energi Prasarana |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 3,361,288 |  |  |
Total liabilities | 2,670,941 |  |  |
Sales of Associates | 319,986 |  |  |
Profit (loss) for the period of Associates | 36,451 |  |  |
Green Radiation Co., Ltd |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 111 |  |  |
Total liabilities | 34 |  |  |
Sales of Associates | 89 |  |  |
Profit (loss) for the period of Associates | (93) |  |  |
Future Convergence Technology Laboratory. Co., Ltd |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 551 |  |  |
Total liabilities | 302 |  |  |
Sales of Associates | 9 |  |  |
Profit (loss) for the period of Associates | (130) |  |  |
SC E&G. Co,. Ltd |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 1,199 |  |  |
Total liabilities | 131 |  |  |
Sales of Associates | 1,048 |  |  |
Profit (loss) for the period of Associates | 609 |  |  |
Wang San Engineering. Co,. Ltd |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 1,275 |  |  |
Total liabilities | 447 |  |  |
Sales of Associates | 754 |  |  |
Profit (loss) for the period of Associates | 499 |  |  |
ACE |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 100 |  |  |
Total liabilities | 0 |  |  |
Sales of Associates | 0 |  |  |
Profit (loss) for the period of Associates | 0 |  |  |
Environment and Energy Co., Ltd |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 93 |  |  |
Total liabilities | 0 |  |  |
Sales of Associates | 0 |  |  |
Profit (loss) for the period of Associates | (7) |  |  |
Santiago Solar Power SpA |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 56,138 |  |  |
Total liabilities | 29,390 |  |  |
Sales of Associates | 0 |  |  |
Profit (loss) for the period of Associates | (2,943) |  |  |
Yanggu Floating Photovoltaic Power Plant Inc |  |  |  |
Disclosure of associates [line items] |  |  |  |
Total assets | 3,115 |  |  |
Total liabilities | 0 |  |  |
Sales of Associates | 0 |  |  |
Profit (loss) for the period of Associates | ₩ 0 |  |  |
[1] | The profit for the year ended December 31, 2022 is reduced by the associate entity’s net income (loss) attributable to non-controlling interests.
[2] | The profit for the year ended December 31, 2021 is reduced by the associate entity’s net income (loss) attributable to non-controlling interests.

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