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Investments in Joint Ventures 4 (Details) - KRW (₩) ₩ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of joint ventures [line items] |  |  |  |  |
Book value | ₩ 3,147,584 |  | ₩ 2,239,011 |  | ₩ 1,919,746
KEPCO-Uhde Inc. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 33 |  | ₩ 114 |  |
Effective percentage of ownership | 50.85% |  | 50.85% |  |
Share in net assets | ₩ 17 |  | ₩ 58 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 17 | [1] | 58 | [2] | 100
Shuweihat Asia Power Investment B.V. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 135,617 |  | ₩ 75,652 |  |
Effective percentage of ownership | 49.00% |  | 49.00% |  |
Share in net assets | ₩ 66,452 |  | ₩ 37,069 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 66,452 |  | 37,069 |  | 13,264
Shuweihat Asia Operation & Maintenance Company |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 2,966 |  | ₩ 2,509 |  |
Effective percentage of ownership | 55.00% |  | 55.00% |  |
Share in net assets | ₩ 1,631 |  | ₩ 1,380 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 1,631 | [1] | 1,380 | [2] | 1,057
Waterbury Lake Uranium L.P. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 66,589 |  | ₩ 65,226 |  |
Effective percentage of ownership | 32.59% |  | 33.10% |  |
Share in net assets | ₩ 21,701 |  | ₩ 21,590 |  |
Investment differential | 49 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 21,750 | [3] | 21,590 |  | 19,797
ASM-BG Investicii AD |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 29,110 |  | ₩ 37,384 |  |
Effective percentage of ownership | 50.00% |  | 50.00% |  |
Share in net assets | ₩ 14,555 |  | ₩ 18,692 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 14,555 |  | 18,692 |  | 18,200
RES Technology AD |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 30,266 |  | ₩ 33,405 |  |
Effective percentage of ownership | 50.00% |  | 50.00% |  |
Share in net assets | ₩ 15,133 |  | ₩ 16,703 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 15,133 |  | 16,703 |  | 15,930
KV Holdings, Inc. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 24,148 |  | ₩ 6,317 |  |
Effective percentage of ownership | 40.00% |  | 40.00% |  |
Share in net assets | ₩ 9,659 |  | ₩ 2,527 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 9,659 | [4] | 2,527 |  | 2,405
KEPCO SPC Power Corporation |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 238,822 |  | ₩ 264,600 |  |
Effective percentage of ownership | 75.20% |  | 75.20% |  |
Share in net assets | ₩ 179,594 |  | ₩ 198,979 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 179,594 | [1],[4] | 198,979 | [2] | 201,663
Gansu Datang Yumen Wind Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 15,059 |  | ₩ 16,588 |  |
Effective percentage of ownership | 40.00% |  | 40.00% |  |
Share in net assets | ₩ 6,024 |  | ₩ 6,635 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 6,024 |  | 6,635 |  | 6,530
Datang Chifeng Renewable Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 479,954 |  | ₩ 511,467 |  |
Effective percentage of ownership | 40.00% |  | 40.00% |  |
Share in net assets | ₩ 191,982 |  | ₩ 204,587 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 191,982 |  | 204,587 |  | 188,478
Datang KEPCO Chaoyang Renewable Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 110,995 |  | ₩ 110,542 |  |
Effective percentage of ownership | 40.00% |  | 40.00% |  |
Share in net assets | ₩ 44,398 |  | ₩ 44,217 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 44,398 |  | 44,217 |  | 42,530
Rabigh Electricity Company |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 665,110 |  | ₩ 500,132 |  |
Effective percentage of ownership | 40.00% |  | 40.00% |  |
Share in net assets | ₩ 266,044 |  | ₩ 200,053 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | (50,632) |  | (55,571) |  |
Others | (805) |  | (804) |  |
Book value | 214,607 |  | 143,678 |  | 97,157
Rabigh Operation & Maintenance Company Limited |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 12,782 |  | ₩ 10,177 |  |
Effective percentage of ownership | 40.00% |  | 40.00% |  |
Share in net assets | ₩ 5,113 |  | ₩ 4,071 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 5,113 |  | 4,071 |  | 3,813
Jamaica Public Service Company Limited |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 795,250 |  | ₩ 705,503 |  |
Effective percentage of ownership | 40.00% |  | 40.00% |  |
Share in net assets | ₩ 318,100 |  | ₩ 282,201 |  |
Investment differential | 29,357 |  | 29,357 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | (16,050) |  | (16,909) |  |
Book value | 331,407 |  | 294,649 |  | 266,221
KW Nuclear Components Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 38,368 |  | ₩ 35,355 |  |
Effective percentage of ownership | 45.00% |  | 45.00% |  |
Share in net assets | ₩ 17,266 |  | ₩ 15,910 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | (176) |  | (176) |  |
Book value | 17,090 |  | 15,734 |  | 11,171
Busan Shinho Solar Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 26,877 |  | ₩ 23,363 |  |
Effective percentage of ownership | 25.00% |  | 25.00% |  |
Share in net assets | ₩ 6,719 |  | ₩ 5,841 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 6,719 |  | 5,841 |  | 5,378
Global Trade Of Power System Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 2,406 |  | ₩ 2,058 |  |
Effective percentage of ownership | 29.00% |  | 29.00% |  |
Share in net assets | ₩ 698 |  | ₩ 597 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 698 | [5] | 597 | [5] | 546
Expressway Solar-light Power Generation Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 9,508 |  | ₩ 10,634 |  |
Effective percentage of ownership | 50.00% |  | 29.00% |  |
Share in net assets | ₩ 4,754 |  | ₩ 3,084 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 4,754 | [6] | 3,084 | [5] | 2,896
Amman Asia Electric Power Company |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 367,090 |  | ₩ 297,799 |  |
Effective percentage of ownership | 60.00% |  | 60.00% |  |
Share in net assets | ₩ 220,254 |  | ₩ 178,679 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 220,254 | [1] | 178,679 | [2] | 161,253
KAPES, Inc. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 37,875 |  | ₩ 33,691 |  |
Effective percentage of ownership | 51.00% |  | 51.00% |  |
Share in net assets | ₩ 19,316 |  | ₩ 17,182 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | (22,451) |  | (20,697) |  |
Others | 3,135 |  | 3,515 |  |
Book value | 0 | [1] | 0 | [2] | 0
Honam Wind Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 16,506 |  | ₩ 13,823 |  |
Effective percentage of ownership | 29.00% |  | 29.00% |  |
Share in net assets | ₩ 4,787 |  | ₩ 4,009 |  |
Investment differential | 32 |  | 32 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 4,819 |  | 4,041 |  | 3,887
Korea Power Engineering Service Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 19,114 |  | ₩ 18,671 |  |
Effective percentage of ownership | 29.00% |  | 29.00% |  |
Share in net assets | ₩ 5,543 |  | ₩ 5,415 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 5,543 |  | 5,415 |  | 5,362
Chun-cheon Energy Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 107,990 |  | ₩ 87,427 |  |
Effective percentage of ownership | 29.90% |  | 29.90% |  |
Share in net assets | ₩ 32,289 |  | ₩ 26,141 |  |
Investment differential | 3 |  | 3 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | (248) |  | (248) |  |
Book value | 32,044 |  | 25,896 |  | 27,518
Yeonggwangbaeksu Wind Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 20,972 |  | ₩ 18,149 |  |
Effective percentage of ownership | 15.00% |  | 15.00% |  |
Share in net assets | ₩ 3,146 |  | ₩ 2,722 |  |
Investment differential | 5 |  | 6 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 3,151 | [5] | 2,728 | [5] | 3,124
Nghi Son 2 Power LLC |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 817,678 |  | ₩ (37,879) |  |
Effective percentage of ownership | 50.00% |  | 50.00% |  |
Share in net assets | ₩ 408,839 |  | ₩ (18,940) |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 18,940 |  |
Book value | 408,839 |  | 0 |  | 0
Kelar S.A |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 175,717 |  | ₩ 129,173 |  |
Effective percentage of ownership | 65.00% |  | 65.00% |  |
Share in net assets | ₩ 114,216 |  | ₩ 83,962 |  |
Investment differential | 2,921 |  | 2,733 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 117,137 | [1] | 86,695 | [2] | 71,449
PT. Tanjung Power Indonesia |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 265,448 |  | ₩ 132,988 |  |
Effective percentage of ownership | 35.00% |  | 35.00% |  |
Share in net assets | ₩ 92,907 |  | ₩ 46,546 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 92,907 |  | 46,546 |  | 33,063
Incheon New Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 1,878 |  | ₩ 634 |  |
Effective percentage of ownership | 29.00% |  | 29.00% |  |
Share in net assets | ₩ 545 |  | ₩ 184 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | (347) |  | (184) |  |
Book value | 198 | [7] | 0 | [8] | 0
Seokmun Energy Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 59,778 |  | ₩ 47,732 |  |
Effective percentage of ownership | 29.00% |  | 29.00% |  |
Share in net assets | ₩ 17,336 |  | ₩ 13,842 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 17,336 |  | 13,842 |  | 14,814
Daehan Wind Power PSC |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 27,846 |  | ₩ 10,308 |  |
Effective percentage of ownership | 50.00% |  | 50.00% |  |
Share in net assets | ₩ 13,923 |  | ₩ 5,154 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 13,923 |  | 5,154 |  | 0
Barakah One Company |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ (835,613) |  | ₩ (243,855) |  |
Effective percentage of ownership | 18.00% |  | 18.00% |  |
Share in net assets | ₩ (150,410) |  | ₩ (43,894) |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 56,437 |  | 1,058 |  |
Others | 93,973 |  | 42,836 |  |
Book value | 0 | [9] | 0 | [9] | 0
Nawah Energy Company |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 1,749 |  | ₩ 1,632 |  |
Effective percentage of ownership | 18.00% |  | 18.00% |  |
Share in net assets | ₩ 315 |  | ₩ 294 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 315 | [9] | 294 | [9] | 270
Momentum |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 1,035 |  | ₩ 1,104 |  |
Effective percentage of ownership | 33.33% |  | 33.33% |  |
Share in net assets | ₩ 345 |  | ₩ 368 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 345 |  | 368 |  | 565
Daegu Green Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 91,550 |  | ₩ 81,768 |  |
Effective percentage of ownership | 54.24% |  | 54.24% |  |
Share in net assets | ₩ 49,657 |  | ₩ 44,351 |  |
Investment differential | 84 |  | 84 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | (20,381) |  | (20,381) |  |
Book value | 29,360 | [10] | 24,054 | [10] | 23,045
Yeonggwang Wind Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 43,958 |  | ₩ 37,291 |  |
Effective percentage of ownership | 46.00% |  | 46.00% |  |
Share in net assets | ₩ 20,221 |  | ₩ 17,154 |  |
Investment differential | 492 |  | 492 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 20,713 |  | 17,646 |  | 17,256
Chester Solar IV SpA |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 259 |  | ₩ (178) |  |
Effective percentage of ownership | 45.00% |  | 45.00% |  |
Share in net assets | ₩ 117 |  | ₩ (80) |  |
Investment differential | 64 |  | 60 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 20 |  |
Book value | 181 |  | 0 |  | 1,064
Chester Solar V SpA |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 49 |  | ₩ (222) |  |
Effective percentage of ownership | 45.00% |  | 45.00% |  |
Share in net assets | ₩ 22 |  | ₩ (100) |  |
Investment differential | 134 |  | 125 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 156 |  | 25 |  | 277
Diego de Almagro Solar SpA |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 962 |  | ₩ 583 |  |
Effective percentage of ownership | 45.00% |  | 45.00% |  |
Share in net assets | ₩ 433 |  | ₩ 262 |  |
Investment differential | 107 |  | 100 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 540 |  | 362 |  | 1,490
South Jamaica Power Company Limited |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 232,199 |  | ₩ 186,812 |  |
Effective percentage of ownership | 20.00% |  | 20.00% |  |
Share in net assets | ₩ 46,440 |  | ₩ 37,362 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | (3) |  | (2) |  |
Book value | 46,437 |  | 37,360 |  | 31,897
Daesan Green Energy Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 54,908 |  | ₩ 60,697 |  |
Effective percentage of ownership | 35.00% |  | 35.00% |  |
Share in net assets | ₩ 19,218 |  | ₩ 21,244 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 19,218 |  | 21,244 |  | 22,552
RE Holiday Holdings LLC |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 170,740 |  | ₩ 146,334 |  |
Effective percentage of ownership | 50.00% |  | 50.00% |  |
Share in net assets | ₩ 85,370 |  | ₩ 73,167 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 85,370 |  | 73,167 |  | 68,809
RE Pioneer Holdings LLC |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 110,344 |  | ₩ 94,029 |  |
Effective percentage of ownership | 50.00% |  | 50.00% |  |
Share in net assets | ₩ 55,172 |  | ₩ 47,015 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 55,172 |  | 47,015 |  | 49,639
RE Barren Ridge 1 Holdings LLC |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 126,068 |  | ₩ 114,338 |  |
Effective percentage of ownership | 50.00% |  | 50.00% |  |
Share in net assets | ₩ 63,034 |  | ₩ 57,169 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | (59,684) |  | (55,286) |  |
Book value | 3,350 |  | 1,883 |  | 4,466
RE Astoria 2 LandCo LLC |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 13,198 |  | ₩ 11,996 |  |
Effective percentage of ownership | 50.00% |  | 50.00% |  |
Share in net assets | ₩ 6,599 |  | ₩ 5,998 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 6,599 |  | 5,998 |  | 5,230
RE Barren Ridge LandCo LLC |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 4,666 |  | ₩ 4,239 |  |
Effective percentage of ownership | 50.00% |  | 50.00% |  |
Share in net assets | ₩ 2,333 |  | ₩ 2,120 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 2,333 |  | 2,120 |  | 1,847
Laurel SpA |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 774 |  | ₩ 216 |  |
Effective percentage of ownership | 45.00% |  | 45.00% |  |
Share in net assets | ₩ 348 |  | ₩ 97 |  |
Investment differential | 206 |  | 193 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 554 |  | 290 |  | 1,092
KIAMCO KOWEPO Bannerton Hold Co Pty Ltd |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 29,443 |  | ₩ 29,236 |  |
Effective percentage of ownership | 12.37% |  | 12.37% |  |
Share in net assets | ₩ 3,642 |  | ₩ 3,616 |  |
Investment differential | 9 |  | 9 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 3,651 | [5] | 3,625 | [5] | 4,129
Chile Solar JV SpA |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 19,637 |  | ₩ 64,914 |  |
Effective percentage of ownership | 50.00% |  | 50.00% |  |
Share in net assets | ₩ 9,819 |  | ₩ 32,457 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 9,819 |  | 32,457 |  | 34,883
Cheong-Song Noraesan Wind Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 14,484 |  | ₩ 13,941 |  |
Effective percentage of ownership | 29.01% |  | 29.01% |  |
Share in net assets | ₩ 4,202 |  | ₩ 4,045 |  |
Investment differential | 61 |  | 61 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 4,263 | [3] | 4,106 |  | 3,453
Chester Solar I SpA |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 2,313 |  | ₩ 1,922 |  |
Effective percentage of ownership | 45.00% |  | 45.00% |  |
Share in net assets | ₩ 1,041 |  | ₩ 865 |  |
Investment differential | 273 |  | 255 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 1,314 |  | 1,120 |  | 1,621
Solar Philippines Calatagan Corporation |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 76,571 |  | ₩ 70,565 |  |
Effective percentage of ownership | 38.00% |  | 38.00% |  |
Share in net assets | ₩ 29,097 |  | ₩ 26,815 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 27,805 |  | 31,416 |  |
Book value | 56,902 |  | 58,231 |  | 49,017
Saemangeum Solar Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 29,073 |  | ₩ 29,552 |  |
Effective percentage of ownership | 81.01% |  | 81.01% |  |
Share in net assets | ₩ 23,551 |  | ₩ 23,939 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 23,551 | [11] | 23,939 | [11] | 24,292
Chungsongmeon BongSan wind power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 5,823 |  | ₩ 6,987 |  |
Effective percentage of ownership | 29.00% |  | 29.00% |  |
Share in net assets | ₩ 1,689 |  | ₩ 2,026 |  |
Investment differential | 1,781 |  | 1,782 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 3,470 | [5] | 3,808 | [5] | 4,124
Jaeun Resident Wind Power Plant Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 7,709 |  | ₩ 6,753 |  |
Effective percentage of ownership | 29.00% |  | 29.00% |  |
Share in net assets | ₩ 2,236 |  | ₩ 1,958 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 2,236 | [5] | 1,958 |  | 2,195
DE Energia SpA |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ (14,131) |  | ₩ (10,386) |  |
Effective percentage of ownership | 49.00% |  | 49.00% |  |
Share in net assets | ₩ (6,924) |  | ₩ (5,089) |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 16,460 |  | 14,010 |  |
Book value | 9,536 |  | 8,921 |  | 8,187
Dangjin Eco Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 77,993 |  | ₩ 75,787 |  |
Effective percentage of ownership | 34.00% |  | 34.00% |  |
Share in net assets | ₩ 26,518 |  | ₩ 25,768 |  |
Investment differential | 341 |  | 341 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 26,859 |  | 26,109 |  | 25,523
Haemodum Solar Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 6,871 |  | ₩ 6,288 |  |
Effective percentage of ownership | 49.00% |  | 49.00% |  |
Share in net assets | ₩ 3,367 |  | ₩ 3,081 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 3,367 |  | 3,081 |  | 3,065
Yangyang Wind Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 21,642 |  | ₩ 22,295 |  |
Effective percentage of ownership | 50.00% |  | 50.00% |  |
Share in net assets | ₩ 10,821 |  | ₩ 11,148 |  |
Investment differential | 43 |  | 43 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 10,864 |  | 11,191 |  | 10,485
Horus Solar, S.A. De C.V. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 22,722 |  | ₩ 15,136 |  |
Effective percentage of ownership | 14.95% |  | 14.95% |  |
Share in net assets | ₩ 3,396 |  | ₩ 2,262 |  |
Investment differential | 3,580 |  | 3,580 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 6,976 | [12] | 5,842 | [13] | 3,394
Recursos Solares PV De Mexico II, S.A. De C.V. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 18,253 |  | ₩ 15,822 |  |
Effective percentage of ownership | 14.95% |  | 14.95% |  |
Share in net assets | ₩ 2,728 |  | ₩ 2,365 |  |
Investment differential | 2,171 |  | 2,171 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 4,899 | [12] | 4,536 | [13] | 3,660
Sunmex Renovables, S.A. De C.V. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 11,053 |  | ₩ 10,738 |  |
Effective percentage of ownership | 14.95% |  | 14.95% |  |
Share in net assets | ₩ 1,652 |  | ₩ 1,605 |  |
Investment differential | 5 |  | 5 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 1,657 | [12] | 1,610 | [13] | 240
Stavro Holding II A.B. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 85,856 |  | ₩ 88,133 |  |
Effective percentage of ownership | 20.00% |  | 20.00% |  |
Share in net assets | ₩ 17,171 |  | ₩ 17,627 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 17,171 |  | 17,627 |  | 9,277
Solaseado Solar Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 38,230 |  | ₩ 21,928 |  |
Effective percentage of ownership | 38.90% |  | 38.90% |  |
Share in net assets | ₩ 14,872 |  | ₩ 8,530 |  |
Investment differential | 1,361 |  | 1,361 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 16,233 |  | 9,891 |  | 9,915
Yeongam Solar Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 47,923 |  | ₩ 31,919 |  |
Effective percentage of ownership | 19.00% |  | 19.00% |  |
Share in net assets | ₩ 9,105 |  | ₩ 6,065 |  |
Investment differential | 774 |  | 773 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 9,879 | [5] | 6,838 | [5] | 6,042
Samsu Wind Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 16,869 |  | ₩ 14,882 |  |
Effective percentage of ownership | 19.00% |  | 19.00% |  |
Share in net assets | ₩ 3,205 |  | ₩ 2,828 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 3,205 | [5] | 2,828 | [5] | 2,607
Pulau Indah Power Plant Sdn. Bhd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 84,683 |  | ₩ 65,823 |  |
Effective percentage of ownership | 25.00% |  | 25.00% |  |
Share in net assets | ₩ 21,171 |  | ₩ 16,456 |  |
Investment differential | 5,643 |  | 5,643 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 26,814 |  | 22,099 |  | 11,204
Sam-Yang Photovoltaic Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets |  |  | ₩ 10,190 |  |
Effective percentage of ownership |  |  | 49.00% |  |
Share in net assets |  |  | ₩ 4,993 |  |
Investment differential |  |  | 0 |  |
Intercompany transaction |  |  | 0 |  |
Others |  |  | 0 |  |
Book value | 0 |  | 4,993 |  | 5,535
NH-Amundi Global Infrastructure Investment Private Investment Trust 21 |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 71,777 |  | ₩ 70,872 |  |
Effective percentage of ownership | 29.53% |  | 29.53% |  |
Share in net assets | ₩ 21,196 |  | ₩ 20,929 |  |
Investment differential | 527 |  | 527 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 21,723 | [11] | 21,456 |  | 22,242
Shin-han BNPP Private Investment Trust for East-West Sunlight Dream |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 17,319 |  | ₩ 18,098 |  |
Effective percentage of ownership | 90.00% |  | 90.00% |  |
Share in net assets | ₩ 15,587 |  | ₩ 16,288 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 15,587 | [1] | 16,288 | [2] | 16,129
PT Barito Wahana Tenaga |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 447,688 |  | ₩ 266,545 |  |
Effective percentage of ownership | 30.61% |  | 30.61% |  |
Share in net assets | ₩ 137,047 |  | ₩ 81,595 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 137,047 |  | 81,595 |  | 63,029
Cheongna Energy Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 17,595 |  | ₩ 18,485 |  |
Effective percentage of ownership | 50.10% |  | 50.10% |  |
Share in net assets | ₩ 8,815 |  | ₩ 9,261 |  |
Investment differential | 3,137 |  | 3,137 |  |
Intercompany transaction | (1,194) |  | (1,200) |  |
Others | 0 |  | 0 |  |
Book value | 10,758 | [11] | 11,198 | [11] | 4,940
Naepo Green Energy Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ (51,219) |  | ₩ (26,530) |  |
Effective percentage of ownership | 29.20% |  | 29.20% |  |
Share in net assets | ₩ (14,956) |  | ₩ (7,747) |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 14,956 |  | 7,747 |  |
Book value | 0 |  | 0 |  | 0
Dayone Energy Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ (59,627) |  | ₩ (51,842) |  |
Effective percentage of ownership | 46.30% |  | 46.30% |  |
Share in net assets | ₩ (27,607) |  | ₩ (24,003) |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | (868) |  | (882) |  |
Others | 28,475 |  | 24,885 |  |
Book value | 0 | [14] | 0 | [15] | 0
OneEnergy Asia Limited |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 366,764 |  | ₩ 135,470 |  |
Effective percentage of ownership | 40.00% |  | 40.00% |  |
Share in net assets | ₩ 146,706 |  | ₩ 54,188 |  |
Investment differential | 25,512 |  | 25,512 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 172,218 |  | 79,700 |  | 56,654
KAS Investment I LLC |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 61,046 |  | ₩ 51,098 |  |
Effective percentage of ownership | 29.89% |  | 29.89% |  |
Share in net assets | ₩ 18,247 |  | ₩ 15,273 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 18,247 | [3] | 15,273 |  | 23,437
KAS Investment II LLC |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 60,800 |  | ₩ 50,895 |  |
Effective percentage of ownership | 29.89% |  | 29.89% |  |
Share in net assets | ₩ 18,173 |  | ₩ 15,213 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 18,173 | [3] | 15,213 |  | 23,343
Energyco Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 4,692 |  | ₩ 2,435 |  |
Effective percentage of ownership | 29.00% |  | 29.00% |  |
Share in net assets | ₩ 1,361 |  | ₩ 706 |  |
Investment differential | 829 |  | 829 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 2,190 |  | 1,535 |  |
CAES, LLC |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 49,670 |  | ₩ 43,089 |  |
Effective percentage of ownership | 36.00% |  | 36.00% |  |
Share in net assets | ₩ 17,881 |  | ₩ 15,512 |  |
Investment differential | 2,924 |  | 2,923 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 20,805 |  | 18,435 |  | 17,626
Hapcheon Floating Photovoltaic Power Plant Inc. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 17,207 |  | ₩ 14,146 |  |
Effective percentage of ownership | 49.00% |  | 49.00% |  |
Share in net assets | ₩ 8,432 |  | ₩ 6,932 |  |
Investment differential | 39 |  | 39 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 8,471 | [5] | 6,971 | [5] | 1,890
Busan Industrial Solar Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 3,133 |  | ₩ 1,148 |  |
Effective percentage of ownership | 28.02% |  | 28.02% |  |
Share in net assets | ₩ 878 |  | ₩ 322 |  |
Investment differential | 290 |  | 290 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 1,168 |  | 612 |  | 510
Bitsolar Energy Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ (4,545) |  | ₩ (5,033) |  |
Effective percentage of ownership | 27.10% |  | 27.10% |  |
Share in net assets | ₩ (1,232) |  | ₩ (1,364) |  |
Investment differential | 352 |  | 352 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 1,232 |  | 1,364 |  |
Book value | 352 |  | 352 |  | 352
Pulau Indah O&M Sdn. Bhd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 0 |  | ₩ 0 |  |
Effective percentage of ownership | 60.00% |  | 60.00% |  |
Share in net assets | ₩ 0 |  | ₩ 0 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 0 |  | 0 |  | 0
Guadalupe Solar SpA |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 1,358 |  | ₩ 935 |  |
Effective percentage of ownership | 60.00% |  | 60.00% |  |
Share in net assets | ₩ 815 |  | ₩ 561 |  |
Investment differential | 98 |  | 98 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 913 | [11] | 659 | [11] | 0
Omisan Wind Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 24,393 |  | ₩ 24,922 |  |
Effective percentage of ownership | 42.00% |  | 42.00% |  |
Share in net assets | ₩ 10,245 |  | ₩ 10,467 |  |
Investment differential | 166 |  | 166 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 10,411 |  | 10,633 |  | 0
Foresight Iberian Solar Group Holding, S.L. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 12,184 |  | ₩ 11,091 |  |
Effective percentage of ownership | 75.00% |  | 75.00% |  |
Share in net assets | ₩ 9,138 |  | ₩ 8,318 |  |
Investment differential | 1,427 |  | 1,425 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 10,565 |  | 9,743 |  | 0
Yeongwol Eco Wind Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 4,575 |  | ₩ 4,718 |  |
Effective percentage of ownership | 29.00% |  | 29.00% |  |
Share in net assets | ₩ 1,327 |  | ₩ 1,368 |  |
Investment differential | 1,828 |  | 1,828 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 3,155 |  | 3,196 |  | 0
Gurae Resident Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 1,182 |  | ₩ 1,198 |  |
Effective percentage of ownership | 29.00% |  | 29.00% |  |
Share in net assets | ₩ 343 |  | ₩ 347 |  |
Investment differential | 48 |  | 48 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 391 |  | 395 |  | 0
Cheongju Eco Park Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 35,500 |  | ₩ 18,172 |  |
Effective percentage of ownership | 29.00% |  | 29.00% |  |
Share in net assets | ₩ 10,295 |  | ₩ 5,270 |  |
Investment differential | 195 |  | 195 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 10,490 |  | 5,465 |  | 0
Enel X Midland Photovoltaic, LLC |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 9,279 |  | ₩ 8,442 |  |
Effective percentage of ownership | 20.00% |  | 20.00% |  |
Share in net assets | ₩ 1,856 |  | ₩ 1,688 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 1,856 |  | 1,688 |  | 0
Geumsungsan Wind Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 10,128 |  | ₩ 18,956 |  |
Effective percentage of ownership | 29.00% |  | 29.00% |  |
Share in net assets | ₩ 2,937 |  | ₩ 5,497 |  |
Investment differential | 556 |  | 556 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 3,493 |  | 6,053 |  | 0
KEPCO KPS Carabao Corp. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 443 |  | ₩ 966 |  |
Effective percentage of ownership | 40.00% |  | 40.00% |  |
Share in net assets | ₩ 177 |  | ₩ 386 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 177 | [7] | 386 |  | 0
Prime Swedish Holding AB |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 77,828 |  | ₩ 34,237 |  |
Effective percentage of ownership | 45.00% |  | 45.00% |  |
Share in net assets | ₩ 35,023 |  | ₩ 15,407 |  |
Investment differential | 1,222 |  | 34 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 36,245 |  | 15,441 |  | 0
Goheung New Energy Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 23,289 |  | ₩ 23,020 |  |
Effective percentage of ownership | 46.15% |  | 46.15% |  |
Share in net assets | ₩ 10,748 |  | ₩ 10,624 |  |
Investment differential | 1,084 |  | 1,084 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 11,832 |  | 11,708 |  | 0
Gunsan Land Solar Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 36,586 |  | ₩ 25,658 |  |
Effective percentage of ownership | 75.29% |  | 75.29% |  |
Share in net assets | ₩ 27,544 |  | ₩ 19,317 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 0 |  | 0 |  |
Book value | 27,544 | [11] | 19,317 | [11] | 0
Capman Lynx SCA, SICAR |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 9,908 |  | ₩ 19,952 |  |
Effective percentage of ownership | 50.00% |  | 50.00% |  |
Share in net assets | ₩ 4,954 |  | ₩ 9,976 |  |
Investment differential | 0 |  | 0 |  |
Intercompany transaction | 0 |  | 0 |  |
Others | (4,954) |  | 0 |  |
Book value | 0 |  | 9,976 |  | 0
International Offshore Power Transmission Holding Company Limited |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ (66,788) |  | ₩ 5 |  |
Effective percentage of ownership | 35.00% |  | 35.00% |  |
Share in net assets | ₩ (23,376) |  | ₩ 2 |  |
Investment differential | (2) |  | (2) |  |
Intercompany transaction | 0 |  | 0 |  |
Others | 23,378 |  | 0 |  |
Book value | 0 |  | 0 |  | ₩ 0
Pyeongchang Wind Power Co., Ltd. [Member] |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 24,938 |  |  |  |
Effective percentage of ownership | 58.00% |  |  |  |
Share in net assets | ₩ 14,464 |  |  |  |
Investment differential | 0 |  |  |  |
Intercompany transaction | 0 |  |  |  |
Others | 0 |  |  |  |
Book value | 14,464 | [16] | 0 |  |
Eumseong Eco Park [Member] |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 17,173 |  |  |  |
Effective percentage of ownership | 29.00% |  |  |  |
Share in net assets | ₩ 4,980 |  |  |  |
Investment differential | 577 |  |  |  |
Intercompany transaction | 0 |  |  |  |
Others | 0 |  |  |  |
Book value | 5,557 |  | 0 |  |
Songsan Green Energy [Member] |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 5,500 |  |  |  |
Effective percentage of ownership | 25.00% |  |  |  |
Share in net assets | ₩ 1,375 |  |  |  |
Investment differential | 12 |  |  |  |
Intercompany transaction | 0 |  |  |  |
Others | 0 |  |  |  |
Book value | 1,387 | [3] | 0 |  |
Changwon Nuri Energy [Member] |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 1,490 |  |  |  |
Effective percentage of ownership | 33.33% |  |  |  |
Share in net assets | ₩ 497 |  |  |  |
Investment differential | 0 |  |  |  |
Intercompany transaction | 0 |  |  |  |
Others | 0 |  |  |  |
Book value | 497 | [3] | 0 |  |
Hasami Wind Farm Corporation [Member] |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 3,100 |  |  |  |
Effective percentage of ownership | 29.00% |  |  |  |
Share in net assets | ₩ 899 |  |  |  |
Investment differential | 690 |  |  |  |
Intercompany transaction | 0 |  |  |  |
Others | 0 |  |  |  |
Book value | 1,589 |  | 0 |  |
PungBack Wind Farm Corporation [Member] |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 15,290 |  |  |  |
Effective percentage of ownership | 37.00% |  |  |  |
Share in net assets | ₩ 5,657 |  |  |  |
Investment differential | 1,086 |  |  |  |
Intercompany transaction | 0 |  |  |  |
Others | 0 |  |  |  |
Book value | 6,743 | [17] | 0 |  |
Trumbull Asset Management, LLC [Member] |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 316 |  |  |  |
Effective percentage of ownership | 78.00% |  |  |  |
Share in net assets | ₩ 246 |  |  |  |
Investment differential | 0 |  |  |  |
Intercompany transaction | 0 |  |  |  |
Others | 0 |  |  |  |
Book value | 246 | [18] | 0 |  |
SPower Chile SpA [Member] |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ (20) |  |  |  |
Effective percentage of ownership | 50.00% |  |  |  |
Share in net assets | ₩ (10) |  |  |  |
Investment differential | 0 |  |  |  |
Intercompany transaction | 0 |  |  |  |
Others | 137 |  |  |  |
Book value | 127 |  | 0 |  |
Seungmun Green Energy [Member] |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 27,440 |  |  |  |
Effective percentage of ownership | 33.00% |  |  |  |
Share in net assets | ₩ 9,054 |  |  |  |
Investment differential | 0 |  |  |  |
Intercompany transaction | 0 |  |  |  |
Others | 0 |  |  |  |
Book value | 9,054 |  | 0 |  |
Seobusambo highway photovoltaics Co., Ltd. [Member] |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |
Net assets | ₩ 3,833 |  |  |  |
Effective percentage of ownership | 80.00% |  |  |  |
Share in net assets | ₩ 3,066 |  |  |  |
Investment differential | 0 |  |  |  |
Intercompany transaction | 0 |  |  |  |
Others | 0 |  |  |  |
Book value | ₩ 3,066 | [19] | ₩ 0 |  |
[1] | The effective percentage of ownership is more than 50%. However, according to the shareholders’ agreement, all critical financial and operating decisions must be agreed to by all ownership parties and the Group can exercise same voting rights as other shareholders at the board of directors. Accordingly, the entities are classified as joint ventures.
[2] | The effective percentage of ownership is more than 50%. However, according to the shareholders’ agreement, all critical financial and operating decisions must be agreed to by all ownership parties. Accordingly, the entities are classified as joint ventures.
[3] | The effective percentage of ownership is less than 50%. However, the entity is classified as a joint venture, because all consent was required to make decisions on related activities.
[4] | The Company is planning to sell its investment in SPC Power Corporation, KEPCO SPC Power Corporation, KV Holdings, Inc. and time or proceeds of sales are not specified as of December 31, 2022.
[5] | According to the shareholders’ agreement, the parties have joint control over all decisions related to finance and operation. Accordingly, the entity is classified as joint ventures.
[6] | The effective percentage of ownership increased due to the disproportionate capital reduction of financial investors during the year ended December 31, 2022.
[7] | The joint arrangement which the Group has joint control is structured through a separate company. The parties have joint control over the joint arrangement are classified as joint ventures, judging that they have rights to the net assets of the arrangement.
[8] | The joint arrangement which the Company has joint control is structured through a separate company. The parties have joint control over the joint arrangement are classified as joint ventures, judging that they have rights to the net assets of the arrangement.
[9] | The effective percentage of ownership is less than 20%. However, decisions in relevant actitvities must be agreed by ownership parties. Accordingly, the entity is classified as joint ventures.
[10] | Although the nominal percentage of ownership is 29%, the effective percentage of ownership is 54.24%, considering the interest of financial investors as a liability component.
[11] | The effective percentage of ownership is more than 50%. However, decisions in relevant actitvities must be agreed by all ownership parties. Accordingly, the entity is classified as a joint venture.
[12] | The effective percentage of ownership is less than 20%. However, according to the shareholders’ agreement, decisions related pricipal operation must be agreed by all ownership parties. Accordingly, the Group can exercise significant influence.
[13] | The effective percentage of ownership is less than 20%. However, according to the shareholders’ agreement, decisions related pricipal operation must be agreed by all ownership parties. Accordingly, the Company can exercise significant influence.
[14] | According to the Dayone Energy Co., Ltd. Investment Agreement signed in March 2011, the Group has a commitment to guarantee principal and certain returns on shares of Dayone Energy Co., Ltd. held by NH Power 2nd Co., Ltd. and the National Agricultural Cooperative Federation. Since NH Power 2nd Co., Ltd. and the National Agricultural Cooperative Federation have put option regarding their share of the entity, the Group was deemed to have acquired an additional 15.64% stake. As a result, the effective percentage of ownership is 46.3% in the current and prior period. In accordance with shareholders’ agreement signed during the current period, the Group has joint control with other investors in making important financial and operation decisions, so it has been reclassified from an associate to a joint venture.
[15] | According to the Dayone Energy Co., Ltd. Investment Agreement signed in March 2011, the Company has a commitment to guarantee principal and certain returns on shares of Dayone Energy Co., Ltd. held by NH Power 2nd Co., Ltd. and the National Agricultural Cooperative Federation. Since NH Power 2nd Co., Ltd. and the National Agricultural Cooperative Federation have put option regarding their share of the entity, the Company was deemed to have acquired an additional 15.64% stake. As a result, the effective percentage of ownership is 46.3% in the current and prior period. In accordance with shareholders’ agreement signed during the current period, the Company has joint control with other investors in making important financial and operation decisions, so it has been reclassified from an associate to a joint venture.
[16] | After addtional acquisition of the shares, the effective percentage of ownership is more than 50%. However, decisions in relevant actitvities must be agreed by all members of the board of directors. Accordingly, the entity is classified as a joint venture.
[17] | The effective percentage of ownership is 37%, considering potential common stock.
[18] | The effective percentage of ownership is more than 50%. However, decisions in relevant actitvities must be agreed by all members of the board of directors. Accordingly, the entity is classified as a joint venture.
[19] | Due to the changes in the agreement, the Group lost its control over the entity. Accordingly, the entity is reclassified to a joint venture from a subsidiary. Although the effective percentage of ownership is more than 50%, decisions in relevant actitvities must be agreed by all members of the board of directors.

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