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Summary of financial information of consolidated subsidiaries (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Korea Hydro & Nuclear Power Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | ₩ 61,859,753 |  | ₩ 59,570,219 |
Total liabilities | 35,652,467 |  | 33,917,275 |
Sales | 9,938,941 |  | 8,969,072 |
Profit (loss) for the period | 647,641 |  | 306,007 |
Korea South-East Power Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 10,858,645 |  | 10,938,358 |
Total liabilities | 5,954,129 |  | 5,866,642 |
Sales | 4,258,904 |  | 5,385,387 |
Profit (loss) for the period | (139,149) |  | 41,006 |
Korea Midland Power Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 13,028,436 |  | 12,684,828 |
Total liabilities | 9,357,603 |  | 8,977,766 |
Sales | 4,293,364 |  | 4,479,707 |
Profit (loss) for the period | (29,880) |  | (28,449) |
Korea Western Power Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 10,357,023 |  | 10,514,438 |
Total liabilities | 6,594,779 |  | 6,637,451 |
Sales | 3,605,986 |  | 4,448,992 |
Profit (loss) for the period | (108,953) |  | (46,061) |
Korea Southern Power Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 10,658,015 |  | 10,884,799 |
Total liabilities | 6,411,524 |  | 6,608,301 |
Sales | 4,015,941 |  | 5,084,907 |
Profit (loss) for the period | (17,588) |  | (41,342) |
Korea East-West Power Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 9,619,485 |  | 9,724,311 |
Total liabilities | 4,974,645 |  | 5,022,921 |
Sales | 4,155,416 |  | 4,855,964 |
Profit (loss) for the period | (65,427) |  | 56,698 |
KEPCO Engineering & Construction Company, Inc. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 699,244 |  | 735,207 |
Total liabilities | 200,169 |  | 242,994 |
Sales | 431,723 |  | 448,635 |
Profit (loss) for the period | 20,160 |  | 26,398 |
KEPCO Plant Service & Engineering Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 1,345,857 |  | 1,356,983 |
Total liabilities | 296,515 |  | 294,757 |
Sales | 1,299,186 |  | 1,244,613 |
Profit (loss) for the period | 85,916 |  | 157,737 |
KEPCO Nuclear Fuel Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 798,368 |  | 831,604 |
Total liabilities | 390,155 |  | 429,799 |
Sales | 331,228 |  | 309,055 |
Profit (loss) for the period | 14,542 |  | 24,618 |
KEPCO KDN Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 647,496 |  | 604,458 |
Total liabilities | 174,192 |  | 159,807 |
Sales | 641,308 |  | 625,567 |
Profit (loss) for the period | 45,207 |  | 42,205 |
KEPCO International HongKong Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 120,213 |  | 138,942 |
Total liabilities | 0 |  | 633 |
Sales | 0 |  | 0 |
Profit (loss) for the period | 1,571 |  | 3,330 |
KEPCO International Philippines Inc. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 133,215 |  | 107,224 |
Total liabilities | 366 |  | 371 |
Sales | 0 |  | 0 |
Profit (loss) for the period | 35,182 |  | 67,991 |
KEPCO Gansu International Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 7,753 |  | 10,448 |
Total liabilities | 512 |  | 545 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (19) |  | (20) |
KEPCO Philippines Holdings Inc. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 187,375 |  | 200,503 |
Total liabilities | 127 |  | 6,656 |
Sales | 0 |  | 0 |
Profit (loss) for the period | 65,792 |  | 66,200 |
KEPCO Philippines Corporation |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 6,173 |  | 6,706 |
Total liabilities | 17 |  | 332 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (187) |  | (52) |
KEPCO Ilijan Corporation |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 322,066 |  | 371,377 |
Total liabilities | 47,234 |  | 56,156 |
Sales | 81,400 |  | 95,072 |
Profit (loss) for the period | 39,443 |  | 40,818 |
KEPCO Lebanon SARL |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 1,669 |  | 1,835 |
Total liabilities | 9,195 |  | 9,786 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (59) |  | 255 |
KEPCO Neimenggu International Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 213,444 |  | 200,858 |
Total liabilities | 2,492 |  | 0 |
Sales | 0 |  | 0 |
Profit (loss) for the period | 26,593 |  | (354) |
KEPCO Shanxi International Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 508,363 |  | 538,604 |
Total liabilities | 196,408 |  | 208,895 |
Sales | 0 |  | 0 |
Profit (loss) for the period | 2,278 |  | 151 |
KOMIPO Global Pte Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 263,378 |  | 269,302 |
Total liabilities | 656 |  | 463 |
Sales | 0 |  | 0 |
Profit (loss) for the period | 12,460 |  | 10,400 |
KEPCO Netherlands B.V. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 117,449 |  | 122,577 |
Total liabilities | 71 |  | 101 |
Sales | 0 |  | 0 |
Profit (loss) for the period | 14,503 |  | 948 |
KOREA Imouraren Uranium Investment Corp. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 13,955 |  | 14,173 |
Total liabilities | 123 |  | 111 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (675) |  | (49,716) |
KEPCO Australia Pty., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 451 |  | 364 |
Total liabilities | 17 |  | 14 |
Sales | 0 |  | 0 |
Profit (loss) for the period | 71 |  | (395,914) |
KOSEP Australia Pty., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 34,249 |  | 32,782 |
Total liabilities | 3,500 |  | 2,911 |
Sales | 14,327 |  | 15,514 |
Profit (loss) for the period | 2,150 |  | 3,935 |
KOMIPO Australia Pty., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 45,250 |  | 40,898 |
Total liabilities | 3,782 |  | 2,909 |
Sales | 14,327 |  | 15,514 |
Profit (loss) for the period | 2,685 |  | 3,766 |
KOWEPO Australia Pty., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 44,270 |  | 44,182 |
Total liabilities | 2,909 |  | 5,772 |
Sales | 14,327 |  | 15,514 |
Profit (loss) for the period | 1,663 |  | 2,761 |
KOSPO Australia Pty., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 38,341 |  | 37,254 |
Total liabilities | 2,750 |  | 5,012 |
Sales | 14,327 |  | 15,514 |
Profit (loss) for the period | 2,242 |  | 2,638 |
KEPCO Middle East Holding Company |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 90,601 |  | 102,164 |
Total liabilities | 78,553 |  | 87,834 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (1,539) |  | 5,934 |
Qatrana Electric Power Company |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 464,507 |  | 490,723 |
Total liabilities | 287,859 |  | 322,857 |
Sales | 21,279 |  | 20,773 |
Profit (loss) for the period | 24,717 |  | 21,807 |
KHNP Canada Energy, Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 63,794 |  | 44,639 |
Total liabilities | 26 |  | 43 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (7) |  | (10) |
KEPCO Bylong Australia Pty., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 44,691 |  | 45,207 |
Total liabilities | 349,542 |  | 355,163 |
Sales | 0 |  | 0 |
Profit (loss) for the period | 16,897 |  | (220,909) |
Korea Waterbury Uranium Limited Partnership |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 20,908 |  | 20,717 |
Total liabilities | 165 |  | 167 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (76) |  | (77) |
KEPCO Holdings de Mexico |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 148 |  | 187 |
Total liabilities | 27 |  | 25 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (14) |  | (14) |
KST Electric Power Company, S.A.P.I. de C.V. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 531,367 |  | 539,952 |
Total liabilities | 410,743 |  | 449,459 |
Sales | 65,695 |  | 55,783 |
Profit (loss) for the period | 37,899 |  | (20,797) |
KEPCO Energy Service Company |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 2,255 |  | 2,262 |
Total liabilities | 994 |  | 1,995 |
Sales | 5,880 |  | 5,984 |
Profit (loss) for the period | 507 |  | (481) |
KEPCO Netherlands S3 B.V. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 44,042 |  | 50,352 |
Total liabilities | 54 |  | 49 |
Sales | 0 |  | 0 |
Profit (loss) for the period | 2,833 |  | 2,637 |
PT. KOMIPO Pembangkitan Jawa Bali |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 12,946 |  | 12,391 |
Total liabilities | 3,298 |  | 5,719 |
Sales | 20,306 |  | 18,722 |
Profit (loss) for the period | 4,775 |  | 4,312 |
PT. Cirebon Power Service |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 1,825 |  | 2,089 |
Total liabilities | 550 |  | 313 |
Sales | 8,642 |  | 8,049 |
Profit (loss) for the period | 344 |  | 406 |
KOWEPO International Corporation |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 0 |  | 0 |
Total liabilities | 10 |  | 10 |
Sales | 0 |  | 0 |
Profit (loss) for the period | 0 |  | (2) |
KOSPO Jordan LLC |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 31,620 |  | 17,489 |
Total liabilities | 15,654 |  | 1,521 |
Sales | 9,356 |  | 10,878 |
Profit (loss) for the period | 1,570 |  | 2,634 |
EWP Philippines Corporation |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets |  |  | 1,691 |
Total liabilities |  |  | 888 |
Sales |  |  | 0 |
Profit (loss) for the period |  |  | (111) |
EWP America Inc. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 37,681 | [1] | 66,622 | [2]
Total liabilities | 2,683 | [1] | 2,619 | [2]
Sales | 14,312 | [1] | 21,719 | [2]
Profit (loss) for the period | (14,327) | [1] | (6,497) | [2]
KNF Canada Energy Limited |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 1,871 |  | 1,933 |
Total liabilities | 22 |  | 24 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (50) |  | (48) |
EWP Barbados 1 SRL |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 313,409 |  | 279,295 |
Total liabilities | 1,170 |  | 1,031 |
Sales | 2,950 |  | 2,914 |
Profit (loss) for the period | 44,729 |  | 2,368 |
Gyeonggi Green Energy Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 265,768 |  | 194,425 |
Total liabilities | 240,366 |  | 159,078 |
Sales | 64,660 |  | 13,717 |
Profit (loss) for the period | (9,968) |  | (73,394) |
PT. Tanggamus Electric Power |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 217,730 |  | 228,601 |
Total liabilities | 184,057 |  | 195,826 |
Sales | 3,491 |  | 2,256 |
Profit (loss) for the period | 11,942 |  | (4,529) |
Gyeongju Wind Power Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 105,726 |  | 113,745 |
Total liabilities | 68,629 |  | 75,427 |
Sales | 13,939 |  | 15,548 |
Profit (loss) for the period | 2,108 |  | 3,384 |
KOMIPO America Inc. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 105,926 |  | 9,424 |
Total liabilities | 918 |  | 593 |
Sales | 342 |  | 118 |
Profit (loss) for the period | (1,783) |  | (1,033) |
KOSEP USA, Inc. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 1 |  | 1 |
Total liabilities | 4,837 |  | 5,147 |
Sales | 0 |  | 0 |
Profit (loss) for the period | 0 |  | (119) |
PT. EWP Indonesia |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 33,900 |  | 34,455 |
Total liabilities | 1,125 |  | 5 |
Sales | 0 |  | 0 |
Profit (loss) for the period | 7,083 |  | 5,124 |
KEPCO Netherlands J3 B.V. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 138,824 |  | 120,006 |
Total liabilities | 84 |  | 74 |
Sales | 0 |  | 0 |
Profit (loss) for the period | 28,242 |  | (79) |
Korea Offshore Wind Power Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 354,643 |  | 284,495 |
Total liabilities | 187,576 |  | 117,527 |
Sales | 26,838 |  | 0 |
Profit (loss) for the period | 98 |  | (12,768) |
Global One Pioneer B.V. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 177 |  | 180 |
Total liabilities | 60 |  | 73 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (76) |  | (86) |
Global Energy Pioneer B.V. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 338 |  | 348 |
Total liabilities | 64 |  | 80 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (70) |  | (90) |
Mira Power Limited |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 348,737 |  | 356,111 |
Total liabilities | 266,565 |  | 285,577 |
Sales | 31,172 |  | 0 |
Profit (loss) for the period | (2,960) |  | (971) |
KOSEP Material Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 2,312 |  | 2,788 |
Total liabilities | 429 |  | 1,186 |
Sales | 3,457 |  | 3,357 |
Profit (loss) for the period | 189 |  | 22 |
Commerce and Industry Energy Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 89,681 |  | 90,637 |
Total liabilities | 41,384 |  | 43,985 |
Sales | 31,603 |  | 32,728 |
Profit (loss) for the period | 1,623 |  | (7,532) |
KEPCO KPS Philippines Corp. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 3,119 |  | 5,198 |
Total liabilities | 284 |  | 1,341 |
Sales | 5,151 |  | 6,246 |
Profit (loss) for the period | 158 |  | 2 |
KOSPO Chile SpA |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 128,795 |  | 134,827 |
Total liabilities | 48,813 |  | 49,183 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (542) |  | (456) |
PT. KOWEPO Sumsel Operation and Maintenance Services |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 108 |  | 135 |
Total liabilities | 241 |  | 262 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (15) |  | (1,104) |
HeeMang Sunlight Power Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 7,261 |  | 12,185 |
Total liabilities | 4,339 |  | 8,545 |
Sales | 423 |  | 643 |
Profit (loss) for the period | (142) |  | 75 |
Fujeij Wind Power Company |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 194,844 |  | 218,333 |
Total liabilities | 174,051 |  | 196,964 |
Sales | 0 |  | 0 |
Profit (loss) for the period | 13,720 |  | 5,515 |
KOSPO Youngnam Power Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 389,071 |  | 398,495 |
Total liabilities | 294,408 |  | 307,226 |
Sales | 254,966 |  | 318,338 |
Profit (loss) for the period | 3,405 |  | 3,514 |
VI Carbon Professional Private Special Asset Investment Trust 1 |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 3,006 |  | 3,002 |
Total liabilities | 4 |  | 0 |
Sales | 0 |  | 0 |
Profit (loss) for the period | 7 |  | 12 |
Chitose Solar Power Plant LLC |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 133,643 |  | 121,457 |
Total liabilities | 118,783 |  | 106,254 |
Sales | 17,073 |  | 17,103 |
Profit (loss) for the period | 1,521 |  | 5,480 |
KEPCO Energy Solution Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 313,754 |  | 308,188 |
Total liabilities | 4,093 |  | 2,142 |
Sales | 5,585 |  | 2,843 |
Profit (loss) for the period | 3,656 |  | 2,805 |
KEPCO Solar Co., Ltd. (formerly, Solar School Plant Co., Ltd.) |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 230,443 |  | 208,730 |
Total liabilities | 23,098 |  | 3,269 |
Sales | 3,933 |  | 1,962 |
Profit (loss) for the period | 1,888 |  | 2,553 |
KOSPO Power Services Ltda. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 4,354 |  | 3,244 |
Total liabilities | 1,644 |  | 1,564 |
Sales | 10,846 |  | 10,013 |
Profit (loss) for the period | 1,011 |  | 452 |
Energy New Industry Specialized Investment Private Investment Trust |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 279,489 | [3] | 100,116 | [4]
Total liabilities | 24,173 | [3] | 17,359 | [4]
Sales | 23,682 | [3] | 2,418 | [4]
Profit (loss) for the period | 8,248 | [3] | (7,735) | [4]
KOEN Bylong Pty., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 6 |  | 0 |
Total liabilities | 75 |  | 39 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (11) |  | (14) |
KOMIPO Bylong Pty., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 7 |  | 4 |
Total liabilities | 76 |  | 43 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (11) |  | (14) |
KOWEPO Bylong Pty., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 6 |  | 4 |
Total liabilities | 64 |  | 40 |
Sales | 0 |  | 0 |
Profit (loss) for the period | 0 |  | (12) |
KOSPO Bylong Pty., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 153 |  | 4 |
Total liabilities | 213 |  | 40 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (2) |  | (12) |
EWP Bylong Pty., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 6 |  | 4 |
Total liabilities | 35 |  | 40 |
Sales | 0 |  | 0 |
Profit (loss) for the period | 28 |  | (12) |
KOWEPO Lao International |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 8,982 |  | 5,430 |
Total liabilities | 392 |  | 575 |
Sales | 8,466 |  | 4,308 |
Profit (loss) for the period | 4,706 |  | 1,584 |
KEPCO US Inc. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 16,154 |  | 17,231 |
Total liabilities | 0 |  | 0 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (21) |  | 0 |
KEPCO Alamosa LLC |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 31,353 |  | 33,515 |
Total liabilities | 270 |  | 183 |
Sales | 127 |  | 145 |
Profit (loss) for the period | (237) |  | (311) |
KEPCO Solar of Alamosa, LLC |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 68,336 |  | 65,468 |
Total liabilities | 42,910 |  | 50,348 |
Sales | 9,096 |  | 8,739 |
Profit (loss) for the period | (2,052) |  | (1,902) |
KEPCO Mangilao Holdings LLC (formerly, KEPCO-LG CNS Mangilao Holdings LLC) |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 25,785 |  | 27,439 |
Total liabilities | 28,924 |  | 30,287 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (502) |  | (1,240) |
Mangilao Investment LLC |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 38,090 |  | 39,972 |
Total liabilities | 14 |  | 0 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (15) |  | 0 |
KEPCO Mangilao Solar, LLC (formerly, KEPCO-LG CNS Mangilao Solar, LLC) |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 69,830 |  | 39,373 |
Total liabilities | 34,029 |  | 11 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (253) |  | (524) |
Jeju Hanlim Offshore Wind Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 20,525 |  | 14,328 |
Total liabilities | 9,805 |  | 558 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (3,049) |  | (2,459) |
PT. Siborpa Eco Power |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 10,491 |  | 11,574 |
Total liabilities | 14 |  | 71 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (361) |  | (1,165) |
PT. Korea Energy Indonesia |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 1,746 |  | 1,592 |
Total liabilities | 196 |  | 121 |
Sales | 2,428 |  | 2,462 |
Profit (loss) for the period | 190 |  | 323 |
KOLAT SpA |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 31,109 |  | 31,178 |
Total liabilities | 425 |  | 167 |
Sales | 243 |  | 656 |
Profit (loss) for the period | (216) |  | (296) |
KEPCO California, LLC |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 41,973 |  | 44,074 |
Total liabilities | 4,683 |  | 936 |
Sales | 0 |  | 358 |
Profit (loss) for the period | (1,330) |  | (513) |
KEPCO Mojave Holdings, LLC |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 95,326 |  | 103,815 |
Total liabilities | 67,138 |  | 69,544 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (4,358) |  | (4,215) |
Incheon Fuel Cell Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 192,184 |  | 22,669 |
Total liabilities | 170,976 |  | 475 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (979) |  | (1,010) |
KOEN Service Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 6,239 |  | 5,347 |
Total liabilities | 5,598 |  | 4,252 |
Sales | 32,150 |  | 25,890 |
Profit (loss) for the period | 129 |  | 543 |
KOMIPO Service Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 3,381 |  | 3,327 |
Total liabilities | 3,649 |  | 2,622 |
Sales | 28,596 |  | 24,556 |
Profit (loss) for the period | (479) |  | 146 |
KOWEPO Service Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 6,045 |  | 4,228 |
Total liabilities | 4,849 |  | 3,302 |
Sales | 29,559 |  | 23,982 |
Profit (loss) for the period | 726 |  | 389 |
KOSPO Service Co., Ltd |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 5,617 |  | 3,493 |
Total liabilities | 4,708 |  | 2,788 |
Sales | 25,103 |  | 18,741 |
Profit (loss) for the period | 832 |  | 135 |
EWP Service Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 4,568 |  | 4,786 |
Total liabilities | 4,074 |  | 4,064 |
Sales | 23,223 |  | 20,837 |
Profit (loss) for the period | (15) |  | 162 |
PT. KOMIPO Energy Indonesia |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 2,473 |  | 2,647 |
Total liabilities | 154 |  | 196 |
Sales | 2,391 |  | 1,392 |
Profit (loss) for the period | 52 |  | 79 |
KNF Partners Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 1,470 |  | 1,378 |
Total liabilities | 743 |  | 890 |
Sales | 5,487 |  | 3,383 |
Profit (loss) for the period | 256 |  | 187 |
KOSPO USA Inc. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 120,380 |  | 5,896 |
Total liabilities | 266 |  | 127 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (1,611) |  | (1,408) |
Nambu USA LLC |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 42,739 |  | 245 |
Total liabilities | 0 |  | 1 |
Sales | 0 |  | 0 |
Profit (loss) for the period | 544 |  | 245 |
Tamra Offshore Wind Power Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 150,957 |  | 156,708 |
Total liabilities | 112,184 |  | 121,724 |
Sales | 22,200 |  | 19,670 |
Profit (loss) for the period | 4,575 |  | 1,154 |
KEPCO MCS Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 59,227 |  | 26,510 |
Total liabilities | 36,786 |  | 22,151 |
Sales | 342,053 |  | 129,393 |
Profit (loss) for the period | 19,190 |  | 3,408 |
KEPCO FMS Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 14,390 |  | 11,336 |
Total liabilities | 12,585 |  | 10,638 |
Sales | 89,228 |  | 37,627 |
Profit (loss) for the period | 837 |  | 198 |
Firstkeepers Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 13,981 |  | 1,552 |
Total liabilities | 12,234 |  | 2,800 |
Sales | 68,538 |  | 121 |
Profit (loss) for the period | 2,994 |  | (2,239) |
Secutec Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 11,473 |  | 322 |
Total liabilities | 9,771 |  | 229 |
Sales | 62,256 |  | 0 |
Profit (loss) for the period | 1,609 |  | (597) |
SE Green Energy Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 152,205 |  | 132,727 |
Total liabilities | 122,606 |  | 105,619 |
Sales | 19,731 |  | 0 |
Profit (loss) for the period | 2,463 |  | 816 |
KEPCO Mangilao America LLC |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 1,793 |  | 0 |
Total liabilities | 0 |  | 0 |
Sales | 0 |  | 0 |
Profit (loss) for the period | 0 |  | 0 |
Mangilao Intermediate Holdings LLC |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 100,609 |  | 13,220 |
Total liabilities | 80,210 |  | 12,774 |
Sales | 0 |  | 0 |
Profit (loss) for the period | (3,708) |  | (66) |
KEPCO CSC Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 8,817 |  | 837 |
Total liabilities | 5,551 |  | 51 |
Sales | 38,465 |  | 0 |
Profit (loss) for the period | 2,479 |  | (14) |
KOAK Power Limited |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 15,864 |  | 15,930 |
Total liabilities | 1,118 |  | 0 |
Sales | 0 |  | 0 |
Profit (loss) for the period | 607 |  | 0 |
KOMIPO Europe B.V. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 43,198 |  | 7,362 |
Total liabilities | 46 |  | 0 |
Sales | 333 |  | 0 |
Profit (loss) for the period | (386) |  | (286) |
Haenanum Energy Fund |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 28,219 |  | 28,101 |
Total liabilities | 132 |  | 1 |
Sales | 128 |  | 0 |
Profit (loss) for the period | (13) |  | 1 |
Paju Ecoenergy Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 57,320 |  | 53,839 |
Total liabilities | 3,506 |  | 0 |
Sales | 3,069 |  | 0 |
Profit (loss) for the period | 247 |  | ₩ 0 |
Guam Ukudu Power LLC |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 3,165 |  |  |
Total liabilities | 3,589 |  |  |
Sales | 0 |  |  |
Profit (loss) for the period | (1,577) |  |  |
TS Energy No. 25 Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 184,667 |  |  |
Total liabilities | 142,709 |  |  |
Sales | 0 |  |  |
Profit (loss) for the period | (3,779) |  |  |
KPS Partners Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 2,139 |  |  |
Total liabilities | 1,127 |  |  |
Sales | 3,562 |  |  |
Profit (loss) for the period | 313 |  |  |
KEPCO E&C Service Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 2,514 |  |  |
Total liabilities | 1,549 |  |  |
Sales | 4,989 |  |  |
Profit (loss) for the period | 464 |  |  |
Moha Solar Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 7,390 |  |  |
Total liabilities | 7,809 |  |  |
Sales | 0 |  |  |
Profit (loss) for the period | (364) |  |  |
Ogiri Solar Power Co., Ltd. |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 1,032 |  |  |
Total liabilities | 0 |  |  |
Sales | 0 |  |  |
Profit (loss) for the period | 0 |  |  |
KHNP USA LLC |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 464 |  |  |
Total liabilities | 23 |  |  |
Sales | 229 |  |  |
Profit (loss) for the period | 119 |  |  |
KOMIPO Vanphong Power Service LLC |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 1,727 |  |  |
Total liabilities | 12 |  |  |
Sales | 0 |  |  |
Profit (loss) for the period | (34) |  |  |
Energy Innovation Fund I |  |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |  |
Total assets | 8,412 |  |  |
Total liabilities | 1 |  |  |
Sales | 25 |  |  |
Profit (loss) for the period | ₩ (201) |  |  |
[1] | Financial information of EWP America Inc. includes that of four other subsidiaries, EWP Renewable Corporation, DG Fairhaven Power, LLC, California Power Holdings, LLC, and EWPRC Biomass Holdings, LLC.
[2] | Financial information of EWP America Inc. includes that of six other subsidiaries, EWP Renewable Corporation, DG Fairhaven Power, LLC, DG Whitefield, LLC, Springfield Power, LLC, California Power Holdings, LLC, and EWPRC Biomass Holdings, LLC.
[3] | Financial information of Energy New Industry Specialized Investment Private Investment Trust includes that of four other subsidiaries, BSK E-New Industry Fund VII, e-New Industry LB Fund 1, Songhyun e-New Industry Fund and BSK E-New Industry Fund X.
[4] | Financial information of Energy New Industry Specialized Investment Private Investment Trust includes that of three other subsidiaries, BSK E-New Industry Fund VII, e-New Industry LB Fund 1 and Songhyun e-New Industry Fund.

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