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Investments in Joint Ventures (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Disclosure of joint ventures [Line Items] |  |  |  |  |
Acquisition cost |  | ₩ 1,943,392 |  | ₩ 1,504,710 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 1,663,029 |  | 1,813,525 |
Acquisition |  | 289,068 |  | 90,162 |
Disposal |  | 0 |  | (5,359) |
Dividends received |  | (139,519) |  | (79,601) |
Share of income (loss) |  | 220,032 |  | 129,402 |
Other comprehensive income (loss) |  | (113,377) |  | (22,189) |
Others (book value) |  | 513 |  | (262,911) |
Ending balance |  | ₩ 1,919,746 |  | ₩ 1,663,029 |
KEPCO-Uhde Inc. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership | [1] | 52.80% |  | 52.80% |
Effective percentage of ownership | [2] | 50.80% |  | 50.80% |
Acquisition cost |  | ₩ 11,355 |  | ₩ 11,355 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 134 |  | 188 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (34) |  | (54) |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 100 |  | 134 |
Share in net assets |  | 100 |  | 134 |
Total assets |  | 208 |  | 270 |
Total liabilities |  | 11 |  | 7 |
Net assets |  | 197 |  | 263 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 0 |  | 0 |
Profit (loss) for the period of JointVentures |  | ₩ (66) |  | ₩ (107) |
Shuweihat Asia Power Investment B.V. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Holding company |  | Holding company |
Location |  | NETHERLANDS |  | NETHERLANDS |
Percentage of ownership |  | 49.00% |  | 49.00% |
Effective percentage of ownership | [2] | 49.00% |  | 49.00% |
Acquisition cost |  | ₩ 44,405 |  | ₩ 44,405 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 18,318 |  | 27,251 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (4,337) |  | (2,176) |
Share of income (loss) |  | 5,919 |  | 5,288 |
Other comprehensive income (loss) |  | (6,636) |  | (12,045) |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 13,264 |  | 18,318 |
Share in net assets |  | 13,264 |  | 18,318 |
Total assets |  | 27,073 |  | 37,389 |
Total liabilities |  | 4 |  | 5 |
Net assets |  | 27,069 |  | 37,384 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 0 |  | 0 |
Profit (loss) for the period of JointVentures |  | ₩ 12,080 |  | ₩ (159) |
Shuweihat Asia Operation & Maintenance Company |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Maintenance of utility plant |  | Maintenance of utility plant |
Location |  | CAYMAN |  | CAYMAN |
Percentage of ownership | [1] | 55.00% |  | 55.00% |
Effective percentage of ownership | [2] | 55.00% |  | 55.00% |
Acquisition cost |  | ₩ 30 |  | ₩ 30 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 1,408 |  | 792 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (922) |  | (907) |
Share of income (loss) |  | 1,074 |  | 1,040 |
Other comprehensive income (loss) |  | (503) |  | (1) |
Others (book value) |  | 0 |  | 484 |
Ending balance |  | 1,057 |  | 1,408 |
Share in net assets |  | 1,057 |  | 1,408 |
Total assets |  | 1,960 |  | 2,605 |
Total liabilities |  | 38 |  | 45 |
Net assets |  | 1,922 |  | 2,560 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 2,689 |  | 2,570 |
Profit (loss) for the period of JointVentures |  | ₩ 1,953 |  | ₩ 1,892 |
Waterbury Lake Uranium L.P. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Resources development |  | Resources development |
Location |  | CANADA |  | CANADA |
Percentage of ownership |  | 33.10% |  | 33.48% |
Effective percentage of ownership | [2] | 33.10% |  | 33.41% |
Acquisition cost |  | ₩ 26,602 |  | ₩ 26,602 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 20,562 |  | 19,032 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 4 |  | 22 |
Other comprehensive income (loss) |  | (769) |  | 1,508 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 19,797 |  | 20,562 |
Share in net assets |  | 19,797 |  | 20,562 |
Total assets |  | 59,885 |  | 61,548 |
Total liabilities |  | 77 |  | 4 |
Net assets |  | 59,808 |  | 61,544 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 0 |  | 0 |
Profit (loss) for the period of JointVentures |  | ₩ 0 |  | ₩ 0 |
ASM-BG Investicii AD |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | BULGARIA |  | BULGARIA |
Percentage of ownership |  | 50.00% |  | 50.00% |
Effective percentage of ownership | [2] | 50.00% |  | 50.00% |
Acquisition cost |  | ₩ 16,101 |  | ₩ 16,101 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 19,376 |  | 21,379 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (4,206) |  | (4,760) |
Share of income (loss) |  | 2,575 |  | 2,442 |
Other comprehensive income (loss) |  | 455 |  | 315 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 18,200 |  | 19,376 |
Share in net assets |  | 18,200 |  | 19,376 |
Total assets |  | 80,261 |  | 78,191 |
Total liabilities |  | 43,861 |  | 39,439 |
Net assets |  | 36,400 |  | 38,752 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 13,355 |  | 13,200 |
Profit (loss) for the period of JointVentures |  | ₩ 5,150 |  | ₩ 4,894 |
RES Technology AD |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | BULGARIA |  | BULGARIA |
Percentage of ownership |  | 50.00% |  | 50.00% |
Effective percentage of ownership | [2] | 50.00% |  | 50.00% |
Acquisition cost |  | ₩ 15,595 |  | ₩ 15,595 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 16,248 |  | 15,209 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (1,981) |  | 0 |
Share of income (loss) |  | 1,051 |  | 963 |
Other comprehensive income (loss) |  | 612 |  | 76 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 15,930 |  | 16,248 |
Share in net assets |  | 15,930 |  | 16,248 |
Total assets |  | 67,232 |  | 66,821 |
Total liabilities |  | 35,372 |  | 34,325 |
Net assets |  | 31,860 |  | 32,496 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 8,381 |  | 8,384 |
Profit (loss) for the period of JointVentures |  | ₩ 2,102 |  | ₩ 1,914 |
KV Holdings, Inc. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | PHILIPPINES |  | PHILIPPINES |
Percentage of ownership |  | 40.00% |  | 40.00% |
Effective percentage of ownership | [2] | 40.00% |  | 40.00% |
Acquisition cost |  | ₩ 2,103 |  | ₩ 2,103 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 2,441 |  | 1,918 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (617) |  | (372) |
Share of income (loss) |  | 580 |  | 751 |
Other comprehensive income (loss) |  | 1 |  | 144 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 2,405 |  | 2,441 |
Share in net assets |  | 2,405 |  | 2,441 |
Total assets |  | 6,013 |  | 6,101 |
Total liabilities |  | 0 |  | 0 |
Net assets |  | 6,013 |  | 6,101 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 27 |  | 25 |
Profit (loss) for the period of JointVentures |  | ₩ 1,449 |  | ₩ 1,876 |
KEPCO SPC Power Corporation |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Construction and operation of utility plant |  | Construction and operation of utility plant |
Location |  | PHILIPPINES |  | PHILIPPINES |
Percentage of ownership | [1] | 75.20% |  | 75.20% |
Effective percentage of ownership | [2] | 75.20% |  | 75.20% |
Acquisition cost |  | ₩ 94,579 |  | ₩ 94,579 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 214,794 |  | 208,306 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (48,486) |  | (45,349) |
Share of income (loss) |  | 48,479 |  | 48,043 |
Other comprehensive income (loss) |  | (12,995) |  | 3,781 |
Others (book value) |  | (129) |  | 13 |
Ending balance |  | 201,663 |  | 214,794 |
Share in net assets |  | 201,663 |  | 214,794 |
Total assets |  | 289,271 |  | 308,274 |
Total liabilities |  | 21,102 |  | 22,643 |
Net assets |  | 268,169 |  | 285,631 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 184,481 |  | 187,867 |
Profit (loss) for the period of JointVentures |  | ₩ 66,311 |  | ₩ 64,152 |
Gansu Datang Yumen Wind Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | CHINA |  | CHINA |
Percentage of ownership |  | 40.00% |  | 40.00% |
Effective percentage of ownership | [2] | 40.00% |  | 40.00% |
Acquisition cost |  | ₩ 16,621 |  | ₩ 16,621 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 8,149 |  | 9,981 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (1,718) |  | (2,050) |
Other comprehensive income (loss) |  | 99 |  | 218 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 6,530 |  | 8,149 |
Share in net assets |  | 6,530 |  | 8,149 |
Total assets |  | 69,668 |  | 77,313 |
Total liabilities |  | 53,343 |  | 56,941 |
Net assets |  | 16,325 |  | 20,372 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 7,157 |  | 6,106 |
Profit (loss) for the period of JointVentures |  | ₩ (4,295) |  | ₩ (5,175) |
Datang Chifeng Renewable Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | CHINA |  | CHINA |
Percentage of ownership |  | 40.00% |  | 40.00% |
Effective percentage of ownership | [2] | 40.00% |  | 40.00% |
Acquisition cost |  | ₩ 121,928 |  | ₩ 121,928 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 185,307 |  | 166,162 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (13,453) |  | 0 |
Share of income (loss) |  | 15,317 |  | 16,325 |
Other comprehensive income (loss) |  | 1,307 |  | 2,820 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 188,478 |  | 185,307 |
Share in net assets |  | 188,478 |  | 185,307 |
Total assets |  | 747,990 |  | 765,598 |
Total liabilities |  | 276,796 |  | 302,329 |
Net assets |  | 471,194 |  | 463,269 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 119,955 |  | 122,398 |
Profit (loss) for the period of JointVentures |  | ₩ 39,439 |  | ₩ 40,371 |
Datang KEPCO Chaoyang Renewable Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | CHINA |  | CHINA |
Percentage of ownership |  | 40.00% |  | 40.00% |
Effective percentage of ownership | [2] | 40.00% |  | 40.00% |
Acquisition cost |  | ₩ 39,872 |  | ₩ 39,872 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 41,024 |  | 39,442 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 1,231 |  | 875 |
Other comprehensive income (loss) |  | 275 |  | 707 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 42,530 |  | 41,024 |
Share in net assets |  | 42,530 |  | 41,024 |
Total assets |  | 182,342 |  | 189,157 |
Total liabilities |  | 76,018 |  | 86,596 |
Net assets |  | 106,324 |  | 102,561 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 26,378 |  | 23,910 |
Profit (loss) for the period of JointVentures |  | ₩ 2,914 |  | ₩ 2,188 |
Rabigh Electricity Company |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | SAUDI ARABIA |  | SAUDI ARABIA |
Percentage of ownership |  | 40.00% |  | 40.00% |
Effective percentage of ownership | [2] | 40.00% |  | 40.00% |
Acquisition cost |  | ₩ 109,743 |  | ₩ 109,743 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 109,096 |  | 105,328 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (14,956) |  | 0 |
Share of income (loss) |  | 25,474 |  | 4,355 |
Other comprehensive income (loss) |  | (22,458) |  | (1,734) |
Others (book value) |  | 1 |  | 1,147 |
Ending balance |  | 97,157 |  | 109,096 |
Share in net assets |  | 158,472 |  | 175,349 |
Total assets |  | 2,294,880 |  | 2,538,719 |
Total liabilities |  | 1,898,701 |  | 2,100,347 |
Net assets |  | 396,179 |  | 438,372 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | (60,511) |  | (65,450) |
Others (consolidated FS) |  | (804) |  | (803) |
Sales of JointVentures |  | 293,722 |  | 208,514 |
Profit (loss) for the period of JointVentures |  | ₩ 94,927 |  | ₩ 1,567 |
Rabigh Operation & Maintenance Company Limited |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Maintenance of utility plant |  | Maintenance of utility plant |
Location |  | SAUDI ARABIA |  | SAUDI ARABIA |
Percentage of ownership |  | 40.00% |  | 40.00% |
Effective percentage of ownership | [2] | 40.00% |  | 40.00% |
Acquisition cost |  | ₩ 70 |  | ₩ 70 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 6,879 |  | 5,834 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (5,340) |  | (2,222) |
Share of income (loss) |  | 2,788 |  | 3,070 |
Other comprehensive income (loss) |  | (514) |  | 197 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 3,813 |  | 6,879 |
Share in net assets |  | 3,813 |  | 6,879 |
Total assets |  | 28,666 |  | 36,121 |
Total liabilities |  | 19,133 |  | 18,923 |
Net assets |  | 9,533 |  | 17,198 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 26,268 |  | 23,777 |
Profit (loss) for the period of JointVentures |  | ₩ 7,318 |  | ₩ 7,203 |
Jamaica Public Service Company Limited |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | JAMAICA |  | JAMAICA |
Percentage of ownership |  | 40.00% |  | 40.00% |
Effective percentage of ownership | [2] | 40.00% |  | 40.00% |
Acquisition cost |  | ₩ 301,910 |  | ₩ 301,910 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 253,607 |  | 239,632 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (4,352) |  | (4,631) |
Share of income (loss) |  | 24,669 |  | 10,166 |
Other comprehensive income (loss) |  | (10,891) |  | 8,440 |
Others (book value) |  | 3,188 |  | 0 |
Ending balance |  | 266,221 |  | 253,607 |
Share in net assets |  | 254,798 |  | 240,976 |
Total assets |  | 1,664,412 |  | 1,543,049 |
Total liabilities |  | 1,027,418 |  | 940,609 |
Net assets |  | 636,994 |  | 602,440 |
Investment differential |  | 29,357 |  | (80,161) |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | (17,934) |  | 92,792 |
Sales of JointVentures |  | 1,042,422 |  | 1,035,399 |
Profit (loss) for the period of JointVentures |  | ₩ 35,916 |  | ₩ 32,828 |
Significant restrictions on its abilities |  | Dividends can only be paid when all conditions of the loan agreement are satisfied and prior written consent of financial institutions is obtained. |  |  |
KW Nuclear Components Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Manufacturing |  | Manufacturing |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 45.00% |  | 45.00% |
Effective percentage of ownership | [2] | 45.00% |  | 45.00% |
Acquisition cost |  | ₩ 833 |  | ₩ 833 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 9,052 |  | 7,708 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (833) |  | (208) |
Share of income (loss) |  | 2,952 |  | 1,552 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 11,171 |  | 9,052 |
Share in net assets |  | 11,348 |  | 9,228 |
Total assets |  | 44,571 |  | 31,326 |
Total liabilities |  | 19,354 |  | 10,820 |
Net assets |  | 25,217 |  | 20,506 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | (177) |  | (176) |
Sales of JointVentures |  | 19,762 |  | 11,305 |
Profit (loss) for the period of JointVentures |  | ₩ 7,262 |  | ₩ 3,837 |
Busan Shinho Solar Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 25.00% |  | 25.00% |
Effective percentage of ownership | [2] | 25.00% |  | 25.00% |
Acquisition cost |  | ₩ 2,100 |  | ₩ 2,100 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 5,045 |  | 4,761 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (330) |  | (430) |
Share of income (loss) |  | 663 |  | 714 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 5,378 |  | 5,045 |
Share in net assets |  | 5,378 |  | 5,045 |
Total assets |  | 39,266 |  | 42,318 |
Total liabilities |  | 17,754 |  | 22,137 |
Net assets |  | 21,512 |  | 20,181 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 7,296 |  | 7,843 |
Profit (loss) for the period of JointVentures |  | ₩ 2,652 |  | ₩ 2,856 |
Significant restrictions on its abilities |  | Dividends can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions is obtained. |  |  |
GS Donghae Electric Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  |  |  | Power generation |
Location |  |  |  | KOREA |
Percentage of ownership |  |  |  | 0.00% |
Effective percentage of ownership | [2] |  |  | 0.00% |
Acquisition cost |  |  |  | ₩ 0 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | ₩ 0 |  | 240,591 |
Acquisition |  |  |  | 0 |
Disposal |  |  |  | 0 |
Dividends received |  |  |  | (10,200) |
Share of income (loss) |  |  |  | 25,787 |
Other comprehensive income (loss) |  |  |  | 0 |
Others (book value) |  |  |  | (256,178) |
Ending balance |  |  |  | 0 |
Share in net assets |  |  |  | 0 |
Total assets |  |  |  | 0 |
Total liabilities |  |  |  | 0 |
Net assets |  |  |  | 0 |
Investment differential |  |  |  | 0 |
Intercompany transaction |  |  |  | 0 |
Others (consolidated FS) |  |  |  | 0 |
Sales of JointVentures |  |  |  | 0 |
Profit (loss) for the period of JointVentures |  |  |  | ₩ 0 |
Global Trade Of Power System Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Exporting products and technology of small or medium business by proxy |  | Exporting products and technology of small or medium business by proxy |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 29.00% | [3] | 29.00% |
Effective percentage of ownership | [2] | 29.00% |  | 29.00% |
Acquisition cost |  | ₩ 290 |  | ₩ 290 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 571 |  | 515 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (25) |  | 56 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 546 |  | 571 |
Share in net assets |  | 546 |  | 571 |
Total assets |  | 2,319 |  | 2,993 |
Total liabilities |  | 435 |  | 1,025 |
Net assets |  | 1,884 |  | 1,968 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 4,105 |  | 3,323 |
Profit (loss) for the period of JointVentures |  | ₩ (96) |  | ₩ 134 |
Expressway Solar-light Power Generation Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 29.00% | [3] | 29.00% |
Effective percentage of ownership | [2] | 29.00% |  | 29.00% |
Acquisition cost |  | ₩ 1,856 |  | ₩ 1,856 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 2,883 |  | 2,676 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 13 |  | 207 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 2,896 |  | 2,883 |
Share in net assets |  | 2,896 |  | 2,883 |
Total assets |  | 14,801 |  | 17,653 |
Total liabilities |  | 4,816 |  | 7,712 |
Net assets |  | 9,985 |  | 9,941 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 2,298 |  | 2,991 |
Profit (loss) for the period of JointVentures |  | ₩ 144 |  | 709 |
Daejung Offshore Wind Power Co., Ltd. |  |  |  |  |
Book value [Abstract] |  |  |  |  |
Beginning balance |  |  |  | 2,669 |
Share of income (loss) |  |  |  | (308) |
Others (book value) |  |  |  | ₩ (2,361) |
Amman Asia Electric Power Company |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | JORDAN |  | JORDAN |
Percentage of ownership | [1] | 60.00% |  | 60.00% |
Effective percentage of ownership | [2] | 60.00% |  | 60.00% |
Acquisition cost |  | ₩ 111,476 |  | ₩ 111,476 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 192,164 |  | 177,357 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (28,281) |  | 0 |
Share of income (loss) |  | 20,165 |  | 20,648 |
Other comprehensive income (loss) |  | (22,795) |  | (5,841) |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 161,253 |  | 192,164 |
Share in net assets |  | 161,253 |  | 192,164 |
Total assets |  | 725,101 |  | 821,997 |
Total liabilities |  | 456,346 |  | 501,723 |
Net assets |  | 268,755 |  | 320,274 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 20,586 |  | 23,866 |
Profit (loss) for the period of JointVentures |  | ₩ 33,608 |  | ₩ 34,424 |
KAPES, Inc. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | R & D |  | R&D |
Location |  | KOREA |  | KOREA |
Percentage of ownership | [1] | 51.00% |  | 51.00% |
Effective percentage of ownership | [2] | 51.00% |  | 51.00% |
Acquisition cost |  | ₩ 5,629 |  | ₩ 5,629 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 10,832 |  | 9,079 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (10,806) |  | 1,767 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | (26) |  | (14) |
Ending balance |  | 0 |  | 10,832 |
Share in net assets |  | 16,369 |  | 10,832 |
Total assets |  | 127,418 |  | 124,396 |
Total liabilities |  | 95,322 |  | 103,158 |
Net assets |  | 32,096 |  | 21,238 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | (19,567) |  | 0 |
Others (consolidated FS) |  | 3,198 |  | 0 |
Sales of JointVentures |  | 167,201 |  | 93,831 |
Profit (loss) for the period of JointVentures |  | 10,908 |  | ₩ 3,465 |
Unrecognized equity interest |  | 3,198 |  |  |
Accumulated unrecognized equity interest |  | 3,198 |  |  |
Dangjin Eco Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  |  |  | Power generation |
Location |  |  |  | KOREA |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | ₩ 0 |  | ₩ 19,912 |
Acquisition |  |  |  | 0 |
Disposal |  |  |  | (5,359) |
Dividends received |  |  |  | 0 |
Share of income (loss) |  |  |  | (657) |
Other comprehensive income (loss) |  |  |  | 16 |
Others (book value) |  |  |  | (13,912) |
Ending balance |  |  |  | 0 |
Share in net assets |  |  |  | 0 |
Total assets |  |  |  | 0 |
Total liabilities |  |  |  | 0 |
Net assets |  |  |  | 0 |
Investment differential |  |  |  | 0 |
Intercompany transaction |  |  |  | 0 |
Others (consolidated FS) |  |  |  | 0 |
Sales of JointVentures |  |  |  | 0 |
Profit (loss) for the period of JointVentures |  |  |  | ₩ 0 |
Honam Wind Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 29.00% |  | 29.00% |
Effective percentage of ownership | [2] | 29.00% |  | 29.00% |
Acquisition cost |  | ₩ 3,480 |  | ₩ 3,480 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 4,375 |  | 4,860 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (435) |  | (587) |
Share of income (loss) |  | (53) |  | 102 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 3,887 |  | 4,375 |
Share in net assets |  | 3,855 |  | 4,343 |
Total assets |  | 36,237 |  | 39,680 |
Total liabilities |  | 22,945 |  | 24,703 |
Net assets |  | 13,292 |  | 14,977 |
Investment differential |  | 32 |  | 32 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 4,433 |  | 5,365 |
Profit (loss) for the period of JointVentures |  | ₩ (220) |  | ₩ 354 |
Significant restrictions on its abilities |  | Dividends can only be paid when all conditions of the loan agreement are satisfied. |  |  |
Jeongam Wind Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 40.00% |  | 40.00% | [4]
Effective percentage of ownership | [2] | 40.00% |  | 40.00% |
Acquisition cost |  | ₩ 5,580 |  | ₩ 5,580 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 4,437 |  |  |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 183 |  | 0 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 4,437 |
Ending balance |  | 4,620 |  | 4,437 |
Share in net assets |  | 4,620 |  | 4,437 |
Total assets |  | 89,829 |  | 94,134 |
Total liabilities |  | 78,279 |  | 83,041 |
Net assets |  | 11,550 |  | 11,093 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 9,757 |  | 11,644 |
Profit (loss) for the period of JointVentures |  | ₩ 412 |  | ₩ 2,005 |
Shareholders' agreements that may cause future economic resource or cash outflows |  | In the case where non-controlling shareholders decide to dispose of their shares in Jeongam Wind Power Co., Ltd. after the construction of the power plant has been completed, the Company is obligated to acquire those shares at fair value. |  |  |
Significant restrictions on its abilities |  | Dividends can only be paid when all conditions of the loan agreement are satisfied and reimbursement to the lender can be restricted depending on the priority of the loans. Also, Shares cannot be wholly or partially transferred without the consent of the stakeholders. |  |  |
Korea Power Engineering Service Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Construction and service |  | Construction and service |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 29.00% |  | 29.00% | [4]
Effective percentage of ownership | [2] | 29.00% |  | 29.00% |
Acquisition cost |  | ₩ 290 |  | ₩ 290 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 4,902 |  |  |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 446 |  | 0 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 14 |  | 4,902 |
Ending balance |  | 5,362 |  | 4,902 |
Share in net assets |  | 5,362 |  | 4,902 |
Total assets |  | 24,162 |  | 19,052 |
Total liabilities |  | 5,674 |  | 2,150 |
Net assets |  | 18,488 |  | 16,902 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 9,435 |  | 12,284 |
Profit (loss) for the period of JointVentures |  | ₩ 1,538 |  | ₩ 1,749 |
Significant restrictions on its abilities |  | Shares cannot be wholly or partially transferred without the consent of the board of directors. |  |  |
Chun-cheon Energy Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 29.90% |  | 29.90% |
Effective percentage of ownership | [2] | 29.90% |  | 29.90% |
Acquisition cost |  | ₩ 52,700 |  | ₩ 52,700 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 34,872 | [5] | 42,505 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (7,354) |  | (7,385) |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | (248) |
Ending balance |  | 27,518 |  | 34,872 | [5]
Share in net assets |  | 27,762 |  | 35,117 |
Total assets |  | 605,493 |  | 607,823 |
Total liabilities |  | 512,642 |  | 490,375 |
Net assets |  | 92,851 |  | 117,448 |
Investment differential |  | 3 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | (247) |  | (245) |
Sales of JointVentures |  | 222,066 |  | 313,438 |
Profit (loss) for the period of JointVentures |  | ₩ (24,597) |  | ₩ (24,490) |
Significant restrictions on its abilities |  | Dividends can only be paid when all conditions of the loan agreement are satisfied. Also, principals and interests on subordinated loans shall not be paid until the collateralized debt is fully repaid. |  |  |
Yeonggwangbaeksu Wind Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership | [3] | 15.00% |  | 15.00% |
Effective percentage of ownership | [2] | 15.00% |  | 15.00% |
Acquisition cost |  | ₩ 3,000 |  | ₩ 3,000 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 3,040 |  | 2,843 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 84 |  | 197 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 3,124 |  | 3,040 |
Share in net assets |  | 3,119 |  | 3,035 |
Total assets |  | 90,758 |  | 99,552 |
Total liabilities |  | 69,967 |  | 79,322 |
Net assets |  | 20,791 |  | 20,230 |
Investment differential |  | 5 |  | 5 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 11,232 |  | 11,739 |
Profit (loss) for the period of JointVentures |  | ₩ 572 |  | ₩ 1,342 |
Significant restrictions on its abilities |  | Dividends and settlement amount for renewable energy supply certificate can only be paid when all conditions of the loan agreement are satisfied and prior written consent of financial institutions is obtained. Also, principals and interests on subordinated loans can only be paid when written consent of financial institutions is obtained. |  |  |
Nghi Son 2 Power LLC |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | VIETNAM |  | VIETNAM |
Percentage of ownership |  | 50.00% |  | 50.00% |
Effective percentage of ownership | [2] | 50.00% |  | 50.00% |
Acquisition cost |  | ₩ 2,781 |  | ₩ 2,781 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 0 |  | 0 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 0 |  | 0 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 0 |  | 0 |
Share in net assets |  | (133,280) |  | (102,825) |
Total assets |  | 2,207,764 |  | 1,589,928 |
Total liabilities |  | 2,474,324 |  | 1,795,578 |
Net assets |  | (266,560) |  | (205,650) |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 133,280 |  | 102,825 |
Sales of JointVentures |  | 819,706 |  | 1,008,326 |
Profit (loss) for the period of JointVentures |  | 108,832 |  | 71,803 |
Unrecognized equity interest |  | 30,456 |  | 61,165 |
Accumulated unrecognized equity interest |  | ₩ 133,280 |  | ₩ 102,824 |
Kelar S.A |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | CHILE |  | CHILE |
Percentage of ownership | [1] | 65.00% |  | 65.00% |
Effective percentage of ownership | [2] | 65.00% |  | 65.00% |
Acquisition cost |  | ₩ 78,060 |  | ₩ 78,060 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 70,462 |  | 72,824 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 14,864 |  | 3,435 |
Other comprehensive income (loss) |  | (9,186) |  | (8,416) |
Others (book value) |  | (4,691) |  | 2,619 |
Ending balance |  | 71,449 |  | 70,462 |
Share in net assets |  | 68,941 |  | 67,794 |
Total assets |  | 598,901 |  | 634,633 |
Total liabilities |  | 492,838 |  | 530,335 |
Net assets |  | 106,063 |  | 104,298 |
Investment differential |  | 2,508 |  | 2,668 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 93,375 |  | 86,702 |
Profit (loss) for the period of JointVentures |  | ₩ 16,863 |  | ₩ 8,867 |
Significant restrictions on its abilities |  | Dividends can only be paid when all conditions of the loan agreement are satisfied. Also, shares cannot be wholly or partially transferred without the consent of the stakeholders. |  | Dividends can only be paid when all conditions of the loan agreement are satisfied. Also, Shares cannot be wholly or partially transferred without consent of the stakeholders is obtained |
PT. Tanjung Power Indonesia |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | INDONESIA |  | INDONESIA |
Percentage of ownership |  | 35.00% |  | 35.00% |
Effective percentage of ownership | [2] | 35.00% |  | 35.00% |
Acquisition cost |  | ₩ 26,892 |  | ₩ 26,892 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 34,327 |  | 7,081 |
Acquisition |  | 0 |  | 26,146 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 7,522 |  | 5,601 |
Other comprehensive income (loss) |  | (9,220) |  | (4,489) |
Others (book value) |  | 434 |  | (12) |
Ending balance |  | 33,063 |  | 34,327 |
Share in net assets |  | 33,063 |  | 34,327 |
Total assets |  | 645,152 |  | 654,365 |
Total liabilities |  | 550,687 |  | 556,287 |
Net assets |  | 94,465 |  | 98,078 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 90,255 |  | 109,825 |
Profit (loss) for the period of JointVentures |  | ₩ 20,487 |  | ₩ 16,489 |
Significant restrictions on its abilities |  | Dividends can only be paid when all conditions of the loan agreement are satisfied. |  |  |
Incheon New Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership | [6] | 29.00% |  | 29.00% |
Effective percentage of ownership | [2] | 29.00% |  | 29.00% |
Acquisition cost |  | ₩ 461 |  | ₩ 461 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 0 | [7] | 579 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 0 |  | (232) |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | (347) |
Ending balance |  | 0 |  | 0 | [7]
Share in net assets |  | 152 |  | 347 |
Total assets |  | 3,439 |  | 4,749 |
Total liabilities |  | 2,914 |  | 3,553 |
Net assets |  | 525 |  | 1,196 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | (152) |  | (347) |
Sales of JointVentures |  | 1,519 |  | 1,951 |
Profit (loss) for the period of JointVentures |  | (670) |  | ₩ (800) |
Unrecognized equity interest |  | 194 |  |  |
Accumulated unrecognized equity interest |  | ₩ 194 |  |  |
Seokmun Energy Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 29.00% |  | 29.00% |
Effective percentage of ownership | [2] | 29.00% |  | 29.00% |
Acquisition cost |  | ₩ 15,370 |  | ₩ 15,370 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 17,342 |  | 16,751 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (2,528) |  | 591 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 14,814 |  | 17,342 |
Share in net assets |  | 14,814 |  | 17,342 |
Total assets |  | 227,539 |  | 242,332 |
Total liabilities |  | 176,457 |  | 182,533 |
Net assets |  | 51,082 |  | 59,799 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 33,677 |  | 44,733 |
Profit (loss) for the period of JointVentures |  | ₩ (8,734) |  | ₩ 2,606 |
Significant restrictions on its abilities |  | Dividends can only be paid when all conditions of the loan agreement are satisfied and prior written consent of financial institutions is obtained. Also, principals and interests on subordinated loans can only be paid when written consent of financial institutions is obtained. |  |  |
Daehan Wind Power PSC |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | JORDAN |  | JORDAN |
Percentage of ownership |  | 50.00% |  | 50.00% |
Effective percentage of ownership | [2] | 50.00% |  | 50.00% |
Acquisition cost |  | ₩ 7,493 |  | ₩ 3,191 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 1,757 |  | 1,632 |
Acquisition |  | 4,302 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (626) |  | 66 |
Other comprehensive income (loss) |  | (5,433) |  | 59 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 0 |  | 1,757 |
Share in net assets |  | (3,855) |  | 1,757 |
Total assets |  | 98,544 |  | 89,904 |
Total liabilities |  | 106,254 |  | 86,390 |
Net assets |  | (7,710) |  | 3,514 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 3,855 |  | 0 |
Sales of JointVentures |  | 0 |  | 0 |
Profit (loss) for the period of JointVentures |  | (765) |  | (767) |
Unrecognized equity interest |  | 3,855 |  | 0 |
Accumulated unrecognized equity interest |  | ₩ 3,855 |  | ₩ 0 |
Significant restrictions on its abilities |  | Dividends can only be paid when all conditions of the loan agreement are satisfied. Also, Shares cannot be wholly or partially transferred without the consent of the stakeholders. |  | Dividends can only be paid when all conditions of the loan agreement are satisfied. Also, Shares cannot be wholly or partially transferred without consent of the stakeholders is obtained. |
Barakah One Company |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | UAE |  | UAE |
Percentage of ownership |  | 18.00% | [8] | 18.00% | [9]
Effective percentage of ownership | [2] | 18.00% |  | 18.00% |
Acquisition cost |  | ₩ 118 |  | ₩ 118 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 0 |  | 3,807 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 0 |  | (2,668) |
Other comprehensive income (loss) |  | 0 |  | (1,139) |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 0 |  | 0 |
Share in net assets |  | (41,493) |  | (38,842) |
Total assets |  | 24,693,571 |  | 24,330,632 |
Total liabilities |  | 24,924,087 |  | 24,546,421 |
Net assets |  | (230,516) |  | (215,789) |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | (27,845) |  | (77,254) |
Others (consolidated FS) |  | 69,338 |  | 116,096 |
Sales of JointVentures |  | 0 |  | 0 |
Profit (loss) for the period of JointVentures |  | (4,520) |  | (112,114) |
Unrecognized equity interest |  | (46,758) |  | 116,096 |
Accumulated unrecognized equity interest |  | ₩ 69,338 |  | ₩ 116,096 |
Nawah Energy Company |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Operation of utility plant |  | Operation of utility plant |
Location |  | UAE |  | UAE |
Percentage of ownership |  | 18.00% | [8] | 18.00% | [9]
Effective percentage of ownership | [2] | 18.00% |  | 18.00% |
Acquisition cost |  | ₩ 296 |  | ₩ 296 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 285 |  | 274 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 2 |  | 0 |
Other comprehensive income (loss) |  | (17) |  | 11 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 270 |  | 285 |
Share in net assets |  | 270 |  | 285 |
Total assets |  | 139,286 |  | 120,987 |
Total liabilities |  | 137,788 |  | 119,405 |
Net assets |  | 1,498 |  | 1,582 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 0 |  | 0 |
Profit (loss) for the period of JointVentures |  | ₩ 12 |  | ₩ 3 |
MOMENTUM |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | International thermonuclear experimental reactor construction management |  | International thermonuclear experimental reactor construction management |
Location |  | FRANCE |  | FRANCE |
Percentage of ownership |  | 33.33% |  | 33.33% |
Effective percentage of ownership | [2] | 33.33% |  | 33.33% |
Acquisition cost |  | ₩ 1 |  | ₩ 1 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 553 |  | 582 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (404) |  | (411) |
Share of income (loss) |  | 399 |  | 380 |
Other comprehensive income (loss) |  | 17 |  | 2 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 565 |  | 553 |
Share in net assets |  | 565 |  | 553 |
Total assets |  | 10,772 |  | 8,904 |
Total liabilities |  | 9,076 |  | 7,245 |
Net assets |  | 1,696 |  | 1,659 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 31,161 |  | 21,171 |
Profit (loss) for the period of JointVentures |  | ₩ 1,122 |  | ₩ 1,099 |
Daegu Green Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership | [10] | 29.00% |  | 29.00% |
Effective percentage of ownership | [2] | 54.24% |  | 54.24% |
Acquisition cost |  | ₩ 46,225 |  | ₩ 46,225 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 22,824 | [11] | 41,110 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 128 |  | 3,599 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 93 |  | (21,885) |
Ending balance |  | 23,045 |  | 22,824 | [11]
Share in net assets |  | 43,342 |  | 43,124 |
Total assets |  | 549,034 |  | 579,593 |
Total liabilities |  | 469,126 |  | 500,092 |
Net assets |  | 79,908 |  | 79,501 |
Investment differential |  | 84 |  | 84 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | (20,381) |  | (20,384) |
Sales of JointVentures |  | 221,382 |  | 301,339 |
Profit (loss) for the period of JointVentures |  | ₩ 290 |  | ₩ 4,899 |
Shareholders' agreements that may cause future economic resource or cash outflows |  | The Company has a right to purchase all the shares of Daegu Green Power Co., Ltd. held by the financial investors at the yield-based transfer amount agreed with the shareholders. The Company can exercise its right 5, 10 and 13 years after the date of the investment. The Company has a right to purchase all or part of the shares of Daegu Green Power Co., Ltd. held by Lotte Engineering & Construction Co. at the yield-based transfer amount agreed with the shareholders. |  | The Group has a right to purchase all the shares of Daegu Green Power Co., Ltd. held by the financial investores at the yield-based transfer amount agreed with the shareholders.The Group can exercise its right 5, 10 and 13 years after the date of the investment. The Group has a right to purchase all or part of the shares of Daegu Green Power Co., Ltd. held by Lotte Engineering & Construction Co. at the yield-based transfer amount agreed with the shareholders |
Significant restrictions on its abilities |  | Dividends can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions is obtained. Shares cannot be wholly or partially transferred without prior written consent of financial institutions. |  | Dividends can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions is obtained. Shares cannot be wholly or partially transferred without prior written consent of financial institutions is obtained. |
Yeonggwang Wind Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 46.00% |  | 46.00% |
Effective percentage of ownership | [2] | 46.00% |  | 46.00% |
Acquisition cost |  | ₩ 17,475 |  | ₩ 17,475 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 17,627 |  | 15,304 |
Acquisition |  | 0 |  | 2,100 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (371) |  | 223 |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 17,256 |  | 17,627 |
Share in net assets |  | 16,764 |  | 17,135 |
Total assets |  | 249,999 |  | 262,610 |
Total liabilities |  | 213,556 |  | 225,361 |
Net assets |  | 36,443 |  | 37,249 |
Investment differential |  | 492 |  | 492 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 26,535 |  | 24,256 |
Profit (loss) for the period of JointVentures |  | ₩ 1,690 |  | ₩ (2,032) |
Shareholders' agreements that may cause future economic resource or cash outflows |  | In case the Company intends to purchase all or part of the shares from Daehan Green Energy Co., Ltd., which is a non-controlling shareholder, Daehan Green Energy Co., Ltd. has an obligation to evaluate the shares at fair value and transfer them to the Company. |  | In case the Group intends to purchase all or part of the shares from Daehan Green Energy Co., Ltd., which is a non-controlling shareholder, Daehan Green Energy Co., Ltd. has an obligation to evaluate the shares at fair value and transfer them to the Group. |
Significant restrictions on its abilities |  | Dividends and settlement amount for renewable energy supply certificate can only be paid when all conditions of the loan agreement are satisfied and prior written consent of financial institutions is obtained. |  |  |
Chester Solar IV SpA |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | CHILE |  | CHILE |
Percentage of ownership |  | 45.00% |  | 45.00% |
Effective percentage of ownership | [2] | 45.00% |  | 45.00% |
Acquisition cost |  | ₩ 1,700 |  | ₩ 1,700 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 672 |  | 1,851 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 389 |  | (1,746) |
Other comprehensive income (loss) |  | 80 |  | (55) |
Others (book value) |  | (77) |  | 622 |
Ending balance |  | 1,064 |  | 672 |
Share in net assets |  | 1,009 |  | 614 |
Total assets |  | 14,232 |  | 13,443 |
Total liabilities |  | 11,990 |  | 12,079 |
Net assets |  | 2,242 |  | 1,364 |
Investment differential |  | 55 |  | 58 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 1,688 |  | 1,590 |
Profit (loss) for the period of JointVentures |  | ₩ 485 |  | ₩ (1,057) |
Shareholders' agreements that may cause future economic resource or cash outflows |  | According to the shareholders' agreement, the Company has an obligation to purchase the shares at the agreed yield-based transfer price on the agreed date of exercise and when Sprott Chile Solar I SpA intends to sell its shares. |  | According to the shareholders' agreement, the Group has an obligation to purchase the shares at the agreed yield-based transfer price on the agreed date of exercise.According to the shareholders' agreement, when Sprott Chile SolarISpA intends to sell its shares |
Significant restrictions on its abilities |  | Dividends can only be paid when all conditions of the loan agreement are satisfied. Also, shares cannot be wholly or partially transferred without the consent of the stakeholders. |  | Shares cannot be wholly or partially transferred without consent of the stakeholders is obtained. |
Chester Solar V SpA |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | CHILE |  | CHILE |
Percentage of ownership |  | 45.00% |  | 45.00% |
Effective percentage of ownership | [2] | 45.00% |  | 45.00% |
Acquisition cost |  | ₩ 525 |  | ₩ 525 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 146 |  | 474 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 135 |  | (619) |
Other comprehensive income (loss) |  | 17 |  | (6) |
Others (book value) |  | (21) |  | 297 |
Ending balance |  | 277 |  | 146 |
Share in net assets |  | 162 |  | 23 |
Total assets |  | 4,674 |  | 4,677 |
Total liabilities |  | 4,313 |  | 4,625 |
Net assets |  | 361 |  | 52 |
Investment differential |  | 115 |  | 123 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 588 |  | 519 |
Profit (loss) for the period of JointVentures |  | ₩ 150 |  | ₩ (402) |
Shareholders' agreements that may cause future economic resource or cash outflows |  | According to the shareholders' agreement, the Company has an obligation to purchase the shares at the agreed yield-based transfer price on the agreed date of exercise and when Sprott Chile Solar I SpA intends to sell its shares. |  | According to the shareholders' agreement, the Group has an obligation to purchase the shares at the agreed yield-based transfer price on the agreed date of exercise.According to the shareholders' agreement, when Sprott Chile SolarISpA intends to sell its shares. |
Significant restrictions on its abilities |  | Dividends can only be paid when all conditions of the loan agreement are satisfied. Also, shares cannot be wholly or partially transferred without the consent of the stakeholders. |  | Shares cannot be wholly or partially transferred without consent of the stakeholders is obtained |
Diego de Almagro Solar SpA |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | CHILE |  | CHILE |
Percentage of ownership |  | 45.00% |  | 45.00% |
Effective percentage of ownership | [2] | 45.00% |  | 45.00% |
Acquisition cost |  | ₩ 2,091 |  | ₩ 2,091 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 1,035 |  | 1,663 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 455 |  | (1,014) |
Other comprehensive income (loss) |  | 107 |  | (86) |
Others (book value) |  | (107) |  | 472 |
Ending balance |  | 1,490 |  | 1,035 |
Share in net assets |  | 1,399 |  | 937 |
Total assets |  | 17,916 |  | 18,984 |
Total liabilities |  | 14,808 |  | 16,901 |
Net assets |  | 3,108 |  | 2,083 |
Investment differential |  | 91 |  | 98 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 1,824 |  | 1,954 |
Profit (loss) for the period of JointVentures |  | ₩ 535 |  | ₩ (1,104) |
Shareholders' agreements that may cause future economic resource or cash outflows |  | According to the shareholders' agreement, the Company has an obligation to purchase the shares at the agreed yield-based transfer price on the agreed date of exercise and when Sprott Chile Solar I SpA intends to sell its shares. |  | According to the shareholders' agreement, the Group has an obligation to purchase the shares at the agreed yield-based transfer price on the agreed date of exercise.According to the shareholders' agreement, when Sprott Chile SolarISpA intends to sell its shares. |
Significant restrictions on its abilities |  | Dividends can only be paid when all conditions of the loan agreement are satisfied. Also, shares cannot be wholly or partially transferred without the consent of the stakeholders. |  | Shares cannot be wholly or partially transferred without consent of the stakeholders is obtained. |
South Jamaica Power Company Limited |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | JAMAICA |  | JAMAICA |
Percentage of ownership |  | 20.00% |  | 20.00% |
Effective percentage of ownership | [2] | 20.00% |  | 20.00% |
Acquisition cost |  | ₩ 20,521 |  | ₩ 20,521 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 13,863 |  | 16,124 |
Acquisition |  | 0 |  | 4,290 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 20,468 |  | (7,131) |
Other comprehensive income (loss) |  | (2,432) |  | 580 |
Others (book value) |  | (2) |  | 0 |
Ending balance |  | 31,897 |  | 13,863 |
Share in net assets |  | 31,899 |  | 13,863 |
Total assets |  | 405,804 |  | 364,347 |
Total liabilities |  | 246,310 |  | 295,029 |
Net assets |  | 159,494 |  | 69,318 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | (2) |  | 0 |
Sales of JointVentures |  | 209,596 |  | 7,224 |
Profit (loss) for the period of JointVentures |  | ₩ 12,208 |  | ₩ (35,650) |
Daesan Green Energy Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 35.00% |  | 35.00% |
Effective percentage of ownership | [2] | 35.00% |  | 35.00% |
Acquisition cost |  | ₩ 17,850 |  | ₩ 17,850 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 17,182 |  | 17,433 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 5,371 |  | (251) |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | (1) |  | 0 |
Ending balance |  | 22,552 |  | 17,182 |
Share in net assets |  | 22,552 |  | 17,182 |
Total assets |  | 275,911 |  | 232,170 |
Total liabilities |  | 211,476 |  | 183,079 |
Net assets |  | 64,435 |  | 49,091 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 62,286 |  | 0 |
Profit (loss) for the period of JointVentures |  | ₩ 15,346 |  | ₩ (717) |
Significant restrictions on its abilities |  | Dividends and settlement amount for renewable energy supply certificate can only be paid when all conditions of the loan agreement are satisfied and prior written consent of financial institutions is obtained. |  |  |
RE Holiday Holdings LLC |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | USA |  | USA |
Percentage of ownership |  | 50.00% |  | 50.00% |
Effective percentage of ownership | [2] | 50.00% |  | 50.00% |
Acquisition cost |  | ₩ 42,948 |  | ₩ 42,948 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 42,070 |  | 51,094 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 33,072 |  | (6,525) |
Other comprehensive income (loss) |  | (6,333) |  | (2,500) |
Others (book value) |  | 0 |  | 1 |
Ending balance |  | 68,809 |  | 42,070 |
Share in net assets |  | 68,809 |  | 42,070 |
Total assets |  | 320,908 |  | 331,862 |
Total liabilities |  | 183,290 |  | 247,722 |
Net assets |  | 137,618 |  | 84,140 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 19,659 |  | 18,744 |
Profit (loss) for the period of JointVentures |  | ₩ 13,247 |  | ₩ (345) |
RE Pioneer Holdings LLC |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | USA |  | USA |
Percentage of ownership |  | 50.00% |  | 50.00% |
Effective percentage of ownership | [2] | 50.00% |  | 50.00% |
Acquisition cost |  | ₩ 27,891 |  | ₩ 27,891 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 31,156 |  | 38,898 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (1,246) |  | (939) |
Share of income (loss) |  | 24,466 |  | (5,507) |
Other comprehensive income (loss) |  | (4,737) |  | (1,296) |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 49,639 |  | 31,156 |
Share in net assets |  | 49,639 |  | 31,156 |
Total assets |  | 236,565 |  | 246,571 |
Total liabilities |  | 137,287 |  | 184,258 |
Net assets |  | 99,278 |  | 62,313 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 12,410 |  | 12,207 |
Profit (loss) for the period of JointVentures |  | ₩ 8,821 |  | ₩ (1,912) |
RE Barren Ridge 1 Holdings LLC |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | USA |  | USA |
Percentage of ownership |  | 50.00% |  | 50.00% |
Effective percentage of ownership | [2] | 50.00% |  | 50.00% |
Acquisition cost |  | ₩ 28,021 |  | ₩ 28,021 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 42,916 |  | 41,415 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (872) |  | (1,152) |
Share of income (loss) |  | (35,735) |  | 4,609 |
Other comprehensive income (loss) |  | (1,843) |  | (1,957) |
Others (book value) |  | 0 |  | 1 |
Ending balance |  | 4,466 |  | 42,916 |
Share in net assets |  | 53,736 |  | 42,916 |
Total assets |  | 194,643 |  | 209,850 |
Total liabilities |  | 87,171 |  | 124,017 |
Net assets |  | 107,472 |  | 85,833 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | (49,270) |  | 0 |
Sales of JointVentures |  | 10,679 |  | 10,384 |
Profit (loss) for the period of JointVentures |  | ₩ (722) |  | ₩ 7,630 |
RE Astoria 2 LandCo LLC |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | USA |  | USA |
Percentage of ownership |  | 50.00% |  | 50.00% |
Effective percentage of ownership | [2] | 50.00% |  | 50.00% |
Acquisition cost |  | ₩ 5,188 |  | ₩ 5,188 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 5,602 |  | 5,410 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (249) |  | (430) |
Share of income (loss) |  | 210 |  | 430 |
Other comprehensive income (loss) |  | (333) |  | 192 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 5,230 |  | 5,602 |
Share in net assets |  | 5,230 |  | 5,602 |
Total assets |  | 10,733 |  | 11,422 |
Total liabilities |  | 274 |  | 217 |
Net assets |  | 10,459 |  | 11,205 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 664 |  | 656 |
Profit (loss) for the period of JointVentures |  | ₩ 541 |  | ₩ 651 |
RE Barren Ridge LandCo LLC |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | USA |  | USA |
Percentage of ownership |  | 50.00% |  | 50.00% |
Effective percentage of ownership | [2] | 50.00% |  | 50.00% |
Acquisition cost |  | ₩ 2,187 |  | ₩ 2,187 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 1,966 |  | 1,898 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (95) |  | (194) |
Share of income (loss) |  | 95 |  | 172 |
Other comprehensive income (loss) |  | (119) |  | 90 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 1,847 |  | 1,966 |
Share in net assets |  | 1,847 |  | 1,966 |
Total assets |  | 3,776 |  | 4,019 |
Total liabilities |  | 82 |  | 87 |
Net assets |  | 3,694 |  | 3,932 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 266 |  | 262 |
Profit (loss) for the period of JointVentures |  | ₩ 223 |  | ₩ 260 |
Laurel SpA |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | CHILE |  | CHILE |
Percentage of ownership |  | 45.00% |  | 45.00% |
Effective percentage of ownership | [2] | 45.00% |  | 45.00% |
Acquisition cost |  | ₩ 1,222 |  | ₩ 1,222 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 595 |  | 921 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 498 |  | (665) |
Other comprehensive income (loss) |  | 80 |  | (82) |
Others (book value) |  | (81) |  | 421 |
Ending balance |  | 1,092 |  | 595 |
Share in net assets |  | 915 |  | 406 |
Total assets |  | 13,529 |  | 12,979 |
Total liabilities |  | 11,496 |  | 12,076 |
Net assets |  | 2,033 |  | 903 |
Investment differential |  | 177 |  | 189 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 1,704 |  | 961 |
Profit (loss) for the period of JointVentures |  | ₩ 702 |  | ₩ (1,130) |
Shareholders' agreements that may cause future economic resource or cash outflows |  | According to the shareholders' agreement, the Company has an obligation to purchase the shares at the agreed yield-based transfer price on the agreed date of exercise and when Sprott Chile Solar I SpA intends to sell its shares. |  | According to the shareholders' agreement, the Group has an obligation to purchase the shares at the agreed yield-based transfer price on the agreed date of exercise.According to the shareholders' agreement, when Sprott Chile SolarISpA intends to sell its shares |
Significant restrictions on its abilities |  | Dividends can only be paid when all conditions of the loan agreement are satisfied. Also, shares cannot be wholly or partially transferred without the consent of the stakeholders. |  | Shares cannot be wholly or partially transferred without consent of the stakeholders is obtained. |
KIAMCO KOWEPO Bannerton Hold Co Pty Ltd |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | AUSTRALIA |  | AUSTRALIA |
Percentage of ownership | [3] | 12.37% |  | 12.37% |
Effective percentage of ownership | [2] | 12.37% |  | 12.37% |
Acquisition cost |  | ₩ 4,095 |  | ₩ 4,095 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 4,024 |  | 3,940 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (24) |  | (28) |
Other comprehensive income (loss) |  | 129 |  | 112 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 4,129 |  | 4,024 |
Share in net assets |  | 4,121 |  | 4,015 |
Total assets |  | 33,930 |  | 32,883 |
Total liabilities |  | 618 |  | 425 |
Net assets |  | 33,312 |  | 32,458 |
Investment differential |  | 8 |  | 9 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 0 |  | 0 |
Profit (loss) for the period of JointVentures |  | ₩ (191) |  | ₩ (232) |
Chile Solar JV SpA |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | CHILE |  | CHILE |
Percentage of ownership |  | 50.00% |  | 50.00% |
Effective percentage of ownership | [2] | 50.00% |  | 50.00% |
Acquisition cost |  | ₩ 37,689 |  | ₩ 37,689 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 34,859 |  | 36,865 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 187 |  | 842 |
Other comprehensive income (loss) |  | (163) |  | (2,849) |
Others (book value) |  | 0 |  | 1 |
Ending balance |  | 34,883 |  | 34,859 |
Share in net assets |  | 34,883 |  | 34,859 |
Total assets |  | 74,776 |  | 69,903 |
Total liabilities |  | 5,011 |  | 186 |
Net assets |  | 69,765 |  | 69,717 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 4,390 |  | 591 |
Profit (loss) for the period of JointVentures |  | ₩ 1,476 |  | ₩ 1,686 |
Taebaek Gadeoksan Wind Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 47.31% |  | 37.78% |
Effective percentage of ownership | [2] | 47.31% |  | 37.78% |
Acquisition cost |  | ₩ 12,570 |  | ₩ 8,500 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 7,846 |  | 8,508 |
Acquisition |  | 4,070 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 1,468 |  | (651) |
Other comprehensive income (loss) |  | (22) |  | (9) |
Others (book value) |  | 0 |  | (2) |
Ending balance |  | 13,362 |  | 7,846 |
Share in net assets |  | 13,362 |  | 7,846 |
Total assets |  | 142,731 |  | 70,270 |
Total liabilities |  | 114,487 |  | 49,500 |
Net assets |  | 28,244 |  | 20,770 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 10,587 |  | 0 |
Profit (loss) for the period of JointVentures |  | ₩ 2,411 |  | ₩ (1,602) |
Significant restrictions on its abilities |  | Dividends and settlement amount for renewable energy supply certificate can only be paid when all conditions of the loan agreement are satisfied or prior written consent of financial institutions is obtained. Also, principals and interests on subordinated loans can only be paid when written consent of financial institutions is obtained. |  |  |
Cheong-Song Noraesan Wind Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 29.01% |  | 29.01% |
Effective percentage of ownership | [2] | 29.01% |  | 29.01% |
Acquisition cost |  | ₩ 3,200 |  | ₩ 3,200 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 3,043 |  | 2,073 |
Acquisition |  | 0 |  | 1,127 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 409 |  | (153) |
Other comprehensive income (loss) |  | 0 |  | (4) |
Others (book value) |  | 1 |  | 0 |
Ending balance |  | 3,453 |  | 3,043 |
Share in net assets |  | 3,391 |  | 2,982 |
Total assets |  | 55,460 |  | 51,247 |
Total liabilities |  | 43,771 |  | 40,969 |
Net assets |  | 11,689 |  | 10,278 |
Investment differential |  | 61 |  | 61 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 1 |  | 0 |
Sales of JointVentures |  | 7,411 |  | 0 |
Profit (loss) for the period of JointVentures |  | ₩ 2,039 |  | ₩ (549) |
Chester Solar I SpA |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | CHILE |  | CHILE |
Percentage of ownership |  | 45.00% |  | 45.00% |
Effective percentage of ownership | [2] | 45.00% |  | 45.00% |
Acquisition cost |  | ₩ 1,181 |  | ₩ 1,181 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 1,157 |  | 1,181 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 472 |  | (112) |
Other comprehensive income (loss) |  | 107 |  | (79) |
Others (book value) |  | (115) |  | 167 |
Ending balance |  | 1,621 |  | 1,157 |
Share in net assets |  | 1,387 |  | 908 |
Total assets |  | 12,795 |  | 7,859 |
Total liabilities |  | 9,713 |  | 5,842 |
Net assets |  | 3,082 |  | 2,017 |
Investment differential |  | 234 |  | 249 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 1,111 |  | 0 |
Profit (loss) for the period of JointVentures |  | ₩ 824 |  | ₩ (204) |
Shareholders' agreements that may cause future economic resource or cash outflows |  | According to the shareholders' agreement, the Company has an obligation to purchase the shares at the agreed yield-based transfer price on the agreed date of exercise and when Sprott Chile Solar I SpA intends to sell its shares. |  | According to the shareholders' agreement, the Group has an obligation to purchase the shares at the agreed yield-based transfer price on the agreed date of exercise.According to the shareholders' agreement, when Sprott Chile SolarISpA intends to sell its shares. |
Solar Philippines Calatagan Corporation |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | PHILIPPINES |  | PHILIPPINES |
Percentage of ownership |  | 38.00% |  | 38.00% |
Effective percentage of ownership | [2] | 38.00% |  | 38.00% |
Acquisition cost |  | ₩ 47,903 |  | ₩ 47,903 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 48,930 |  | 47,903 |
Acquisition |  | 0 |  | 0 |
Disposal |  | 0 |  | 0 |
Dividends received |  | (6,439) |  | (4,633) |
Share of income (loss) |  | 6,745 |  | 4,305 |
Other comprehensive income (loss) |  | (219) |  | 1,355 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 49,017 |  | 48,930 |
Share in net assets |  | 19,323 |  | 19,236 |
Total assets |  | 97,947 |  | 98,577 |
Total liabilities |  | 47,098 |  | 47,956 |
Net assets |  | 50,849 |  | 50,621 |
Investment differential |  | 29,694 |  | 29,694 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 23,182 |  | 18,720 |
Profit (loss) for the period of JointVentures |  | ₩ 15,249 |  | ₩ 11,331 |
Saemangeum Solar Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 81.00% | [12] | 81.00% | [13]
Effective percentage of ownership | [2] | 81.00% |  | 81.00% |
Acquisition cost |  | ₩ 26,399 |  | ₩ 10,000 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 8,324 |  |  |
Acquisition |  | 16,399 |  | 10,000 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (431) |  | (1,676) |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 24,292 |  | 8,324 |
Share in net assets |  | 24,450 |  | 8,481 |
Total assets |  | 34,363 |  | 13,740 |
Total liabilities |  | 4,180 |  | 3,270 |
Net assets |  | 30,183 |  | 10,470 |
Investment differential |  | (158) |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | (157) |
Sales of JointVentures |  | 0 |  | 0 |
Profit (loss) for the period of JointVentures |  | ₩ (532) |  | ₩ (1,875) |
Chungsongmeon BongSan wind power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 29.00% | [3] | 29.00% |
Effective percentage of ownership | [2] | 29.00% |  | 29.00% |
Acquisition cost |  | ₩ 2,900 |  | ₩ 2,900 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 2,764 |  |  |
Acquisition |  | 0 |  | 2,900 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (232) |  | (136) |
Other comprehensive income (loss) |  | 1,592 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 4,124 |  | 2,764 |
Share in net assets |  | 2,342 |  | 982 |
Total assets |  | 64,341 |  | 27,659 |
Total liabilities |  | 56,264 |  | 24,272 |
Net assets |  | 8,077 |  | 3,387 |
Investment differential |  | 1,782 |  | 1,782 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 0 |  | 0 |
Profit (loss) for the period of JointVentures |  | ₩ (1,206) |  | ₩ (1,365) |
Jaeun Resident Wind Power Plant Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 29.00% | [3] | 29.00% |
Effective percentage of ownership | [2] | 29.00% |  | 29.00% |
Acquisition cost |  | ₩ 2,494 |  | ₩ 2,494 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 2,198 |  |  |
Acquisition |  | 0 |  | 2,494 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (3) |  | (296) |
Other comprehensive income (loss) |  | 0 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 2,195 |  | 2,198 |
Share in net assets |  | 2,195 |  | 2,198 |
Total assets |  | 63,940 |  | 31,402 |
Total liabilities |  | 56,371 |  | 23,823 |
Net assets |  | 7,569 |  | 7,579 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 0 |  | 0 |
Profit (loss) for the period of JointVentures |  | ₩ (645) |  | ₩ (844) |
DE Energia SpA |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | CHILE |  | CHILE |
Percentage of ownership |  | 49.00% |  | 49.00% |
Effective percentage of ownership | [2] | 49.00% |  | 49.00% |
Acquisition cost |  | ₩ 8,364 |  | ₩ 8,364 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 8,665 |  |  |
Acquisition |  | 0 |  | 8,364 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 506 |  | 647 |
Other comprehensive income (loss) |  | 572 |  | (346) |
Others (book value) |  | (1,556) |  | 0 |
Ending balance |  | 8,187 |  | 8,665 |
Share in net assets |  | (3,237) |  | 6,854 |
Total assets |  | 48,327 |  | 64,959 |
Total liabilities |  | 54,934 |  | 50,971 |
Net assets |  | (6,607) |  | 13,988 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 11,424 |  | 1,811 |
Sales of JointVentures |  | 3,789 |  | 1,254 |
Profit (loss) for the period of JointVentures |  | ₩ (21,087) |  | ₩ (2,645) |
Significant restrictions on its abilities |  | Dividends can only be paid when all conditions of the loan agreement are satisfied. |  |  |
Dangjin Eco Power Co., Ltd. (newly) |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 34.00% |  | 34.00% | [14]
Effective percentage of ownership | [2] | 34.00% |  | 34.00% |
Acquisition cost |  | ₩ 25,661 |  | ₩ 25,661 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 25,661 |  |  |
Acquisition |  | 0 |  | 9,180 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 96 |  | 0 |
Other comprehensive income (loss) |  | (237) |  | 0 |
Others (book value) |  | 3 |  | 16,481 |
Ending balance |  | 25,523 |  | 25,661 |
Share in net assets |  | 25,182 |  | 25,320 |
Total assets |  | 97,834 |  | 99,907 |
Total liabilities |  | 23,769 |  | 25,436 |
Net assets |  | 74,065 |  | 74,471 |
Investment differential |  | 341 |  | 341 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 3,953 |  | 107 |
Profit (loss) for the period of JointVentures |  | ₩ 565 |  | ₩ (737) |
Haemodum Solar Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 49.00% |  | 49.00% |
Effective percentage of ownership | [2] | 49.00% |  | 49.00% |
Acquisition cost |  | ₩ 2,940 |  | ₩ 2,940 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 2,940 |  |  |
Acquisition |  | 0 |  | 2,940 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 140 |  | 0 |
Other comprehensive income (loss) |  | (15) |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 3,065 |  | 2,940 |
Share in net assets |  | 3,065 |  | 2,940 |
Total assets |  | 19,041 |  | 7,237 |
Total liabilities |  | 12,786 |  | 1,237 |
Net assets |  | 6,255 |  | 6,000 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 1,188 |  | 0 |
Profit (loss) for the period of JointVentures |  | ₩ 286 |  | ₩ 0 |
Yangyang Wind Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  | Power generation |
Location |  | KOREA |  | KOREA |
Percentage of ownership |  | 50.00% |  | 99.54% | [15]
Effective percentage of ownership | [2] | 50.00% |  | 99.54% |
Acquisition cost |  | ₩ 10,800 |  | ₩ 10,800 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 10,800 |  |  |
Acquisition |  | 0 |  | 10,800 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (286) |  | 0 |
Other comprehensive income (loss) |  | (29) |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 10,485 |  | 10,800 |
Share in net assets |  | 10,442 |  | 10,714 |
Total assets |  | 20,917 |  | 10,764 |
Total liabilities |  | 33 |  | 0 |
Net assets |  | 20,884 |  | 10,764 |
Investment differential |  | 43 |  | 86 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 0 |  | 0 |
Profit (loss) for the period of JointVentures |  | ₩ (572) |  | ₩ (11) |
HORUS SOLAR, S.A. DE C.V. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Renewable power generation |  | Renewable power generation |
Location |  | MEXICO |  | MEXICO |
Percentage of ownership |  | 14.95% | [16] | 14.95% | [17]
Effective percentage of ownership | [2] | 14.95% |  | 14.95% |
Acquisition cost |  | ₩ 5,068 |  | ₩ 3,403 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 3,403 |  |  |
Acquisition |  | 1,665 |  | 3,403 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (1,985) |  | 0 |
Other comprehensive income (loss) |  | 311 |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 3,394 |  | 3,403 |
Share in net assets |  | (186) |  | 308 |
Total assets |  | 181,432 |  | 10,566 |
Total liabilities |  | 182,674 |  | 8,503 |
Net assets |  | (1,242) |  | 2,063 |
Investment differential |  | 3,580 |  | 3,095 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 0 |  | 0 |
Profit (loss) for the period of JointVentures |  | ₩ (13,285) |  | ₩ (7) |
RECURSOS SOLARES PV DE MEXICO II, S.S. DE C.V. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Renewable power generation |  | Renewable power generation |
Location |  | MEXICO |  | MEXICO |
Percentage of ownership |  | 14.95% | [16] | 14.95% | [17]
Effective percentage of ownership | [2] | 14.95% |  | 14.95% |
Acquisition cost |  | ₩ 3,678 |  | ₩ 672 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 672 |  |  |
Acquisition |  | 3,006 |  | 672 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | 36 |  | 0 |
Other comprehensive income (loss) |  | (54) |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 3,660 |  | 672 |
Share in net assets |  | 1,489 |  | 144 |
Total assets |  | 81,257 |  | 3,848 |
Total liabilities |  | 71,295 |  | 2,885 |
Net assets |  | 9,962 |  | 963 |
Investment differential |  | 2,171 |  | 528 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 0 |  | 0 |
Profit (loss) for the period of JointVentures |  | ₩ 243 |  | ₩ 22 |
SUNMEX RENOVABLES, S.A. DE C.V. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Renewable power generation |  | Renewable power generation |
Location |  | MEXICO |  | MEXICO |
Percentage of ownership |  | 14.95% | [16] | 14.95% | [17]
Effective percentage of ownership | [2] | 14.95% |  | 14.95% |
Acquisition cost |  | ₩ 307 |  | ₩ 222 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 222 |  |  |
Acquisition |  | 85 |  | 222 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (46) |  | 0 |
Other comprehensive income (loss) |  | (21) |  | 0 |
Others (book value) |  | 0 |  | 0 |
Ending balance |  | 240 |  | 222 |
Share in net assets |  | 236 |  | 149 |
Total assets |  | 7,781 |  | 3,170 |
Total liabilities |  | 6,204 |  | 2,171 |
Net assets |  | 1,577 |  | 999 |
Investment differential |  | 4 |  | 73 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 0 |  | 0 |
Profit (loss) for the period of JointVentures |  | ₩ (309) |  | ₩ 13 |
Stavro Holding II AB |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Holding company |  | Holding company |
Location |  | SWEDEN |  | SWEDEN |
Percentage of ownership |  | 20.00% |  | 20.00% |
Effective percentage of ownership | [2] | 20.00% |  | 20.00% |
Acquisition cost |  | ₩ 8,829 |  | ₩ 5,524 |
Book value [Abstract] |  |  |  |  |
Beginning balance |  | 5,625 |  |  |
Acquisition |  | 3,305 |  | 5,524 |
Disposal |  | 0 |  | 0 |
Dividends received |  | 0 |  | 0 |
Share of income (loss) |  | (156) |  | (4) |
Other comprehensive income (loss) |  | 346 |  | 122 |
Others (book value) |  | 157 |  | (17) |
Ending balance |  | 9,277 |  | 5,625 |
Share in net assets |  | 9,277 |  | 5,625 |
Total assets |  | 46,394 |  | 28,141 |
Total liabilities |  | 9 |  | 13 |
Net assets |  | 46,385 |  | 28,128 |
Investment differential |  | 0 |  | 0 |
Intercompany transaction |  | 0 |  | 0 |
Others (consolidated FS) |  | 0 |  | 0 |
Sales of JointVentures |  | 0 |  | 0 |
Profit (loss) for the period of JointVentures |  | ₩ (782) |  | ₩ (18) |
Solaseado Solar Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  |  |
Location |  | KOREA |  |  |
Percentage of ownership |  | 38.90% |  |  |
Effective percentage of ownership | [2] | 38.90% |  |  |
Acquisition cost |  | ₩ 7,020 |  |  |
Book value [Abstract] |  |  |  |  |
Acquisition |  | 7,020 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | 2,895 |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 9,915 |  |  |
Share in net assets |  | 8,554 |  |  |
Total assets |  | 349,855 |  |  |
Total liabilities |  | 327,865 |  |  |
Net assets |  | 21,990 |  |  |
Investment differential |  | 1,361 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of JointVentures |  | 43,782 |  |  |
Profit (loss) for the period of JointVentures |  | ₩ 7,443 |  |  |
Yeongam Solar Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  |  |
Location |  | KOREA |  |  |
Percentage of ownership | [3] | 19.00% |  |  |
Effective percentage of ownership | [2] | 19.00% |  |  |
Acquisition cost |  | ₩ 6,460 |  |  |
Book value [Abstract] |  |  |  |  |
Acquisition |  | 6,460 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | (418) |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 6,042 |  |  |
Share in net assets |  | 5,269 |  |  |
Total assets |  | 312,960 |  |  |
Total liabilities |  | 285,231 |  |  |
Net assets |  | 27,729 |  |  |
Investment differential |  | 773 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of JointVentures |  | 17,347 |  |  |
Profit (loss) for the period of JointVentures |  | ₩ (3,324) |  |  |
Samsu Wind Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  |  |
Location |  | KOREA |  |  |
Percentage of ownership | [3] | 19.00% |  |  |
Effective percentage of ownership | [2] | 19.00% |  |  |
Acquisition cost |  | ₩ 2,637 |  |  |
Book value [Abstract] |  |  |  |  |
Acquisition |  | 2,637 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | (30) |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 2,607 |  |  |
Share in net assets |  | 2,607 |  |  |
Total assets |  | 59,597 |  |  |
Total liabilities |  | 45,877 |  |  |
Net assets |  | 13,720 |  |  |
Investment differential |  | 0 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of JointVentures |  | 0 |  |  |
Profit (loss) for the period of JointVentures |  | ₩ 243 |  |  |
Pulau Indah Power Plant Sdn. Bhd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  |  |
Location |  | MALAYSIA |  |  |
Percentage of ownership |  | 25.00% |  |  |
Effective percentage of ownership | [2] | 25.00% |  |  |
Acquisition cost |  | ₩ 11,569 |  |  |
Book value [Abstract] |  |  |  |  |
Acquisition |  | 11,569 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | (144) |  |  |
Other comprehensive income (loss) |  | (221) |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 11,204 |  |  |
Share in net assets |  | 5,561 |  |  |
Total assets |  | 31,538 |  |  |
Total liabilities |  | 9,293 |  |  |
Net assets |  | 22,245 |  |  |
Investment differential |  | 5,643 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of JointVentures |  | 0 |  |  |
Profit (loss) for the period of JointVentures |  | ₩ (894) |  |  |
Sam-Yang Photovoltaic Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  |  |
Location |  | KOREA |  |  |
Percentage of ownership |  | 49.00% |  |  |
Effective percentage of ownership | [2] | 49.00% |  |  |
Acquisition cost |  | ₩ 5,245 |  |  |
Book value [Abstract] |  |  |  |  |
Acquisition |  | 5,245 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | 290 |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 5,535 |  |  |
Share in net assets |  | 5,535 |  |  |
Total assets |  | 55,345 |  |  |
Total liabilities |  | 44,049 |  |  |
Net assets |  | 11,296 |  |  |
Investment differential |  | 0 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of JointVentures |  | 2,769 |  |  |
Profit (loss) for the period of JointVentures |  | ₩ 592 |  |  |
NH-Amundi Global Infrastructure Investment Private Investment Trust 21 |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Holding company |  |  |
Location |  | KOREA |  |  |
Percentage of ownership |  | 29.53% |  |  |
Effective percentage of ownership | [2] | 29.53% |  |  |
Acquisition cost |  | ₩ 20,952 |  |  |
Book value [Abstract] |  |  |  |  |
Acquisition |  | 20,952 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | (1,388) |  |  |
Share of income (loss) |  | 2,678 |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 22,242 |  |  |
Share in net assets |  | 21,715 |  |  |
Total assets |  | 73,573 |  |  |
Total liabilities |  | 39 |  |  |
Net assets |  | 73,534 |  |  |
Investment differential |  | 0 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 527 |  |  |
Sales of JointVentures |  | 1,770 |  |  |
Profit (loss) for the period of JointVentures |  | ₩ 8,989 |  |  |
Shin-han BNPP Private Investment Trust for East-West Sunlight Dream |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Holding company |  |  |
Location |  | KOREA |  |  |
Percentage of ownership |  | 90.00% |  |  |
Effective percentage of ownership | [2] | 90.00% |  |  |
Acquisition cost |  | ₩ 15,699 |  |  |
Book value [Abstract] |  |  |  |  |
Acquisition |  | 15,699 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | 430 |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 16,129 |  |  |
Share in net assets |  | 16,129 |  |  |
Total assets |  | 17,932 |  |  |
Total liabilities |  | 11 |  |  |
Net assets |  | 17,921 |  |  |
Investment differential |  | 0 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of JointVentures |  | 6 |  |  |
Profit (loss) for the period of JointVentures |  | ₩ 478 |  |  |
PT Barito Wahana Tenaga |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  |  |
Location |  | INDONESIA |  |  |
Percentage of ownership |  | 30.61% |  |  |
Effective percentage of ownership | [2] | 30.61% |  |  |
Acquisition cost |  | ₩ 59,395 |  |  |
Book value [Abstract] |  |  |  |  |
Acquisition |  | 59,395 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | 4,923 |  |  |
Other comprehensive income (loss) |  | (1,289) |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 63,029 |  |  |
Share in net assets |  | 63,029 |  |  |
Total assets |  | 205,894 |  |  |
Total liabilities |  | 0 |  |  |
Net assets |  | 205,894 |  |  |
Investment differential |  | 0 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of JointVentures |  | 0 |  |  |
Profit (loss) for the period of JointVentures |  | ₩ 28,631 |  |  |
Cheongna Energy Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Generating and distributing vapor and hot/cold water |  |  |
Location |  | KOREA |  |  |
Percentage of ownership | [12],[18] | 50.10% |  |  |
Effective percentage of ownership | [2] | 50.10% |  |  |
Acquisition cost |  | ₩ 49,344 |  |  |
Book value [Abstract] |  |  |  |  |
Acquisition |  | 0 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | 21 |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 4,919 |  |  |
Ending balance |  | 4,940 |  |  |
Share in net assets |  | 2,877 |  |  |
Total assets |  | 341,478 |  |  |
Total liabilities |  | 335,736 |  |  |
Net assets |  | 5,742 |  |  |
Investment differential |  | 3,137 |  |  |
Intercompany transaction |  | (1,074) |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of JointVentures |  | 78,387 |  |  |
Profit (loss) for the period of JointVentures |  | ₩ 5,995 |  |  |
Naepo Green Energy Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  |  |
Location |  | KOREA |  |  |
Percentage of ownership | [19] | 29.20% |  |  |
Effective percentage of ownership | [2] | 29.20% |  |  |
Acquisition cost |  | ₩ 29,200 |  |  |
Book value [Abstract] |  |  |  |  |
Acquisition |  | 0 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | 0 |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 0 |  |  |
Share in net assets |  | (2,278) |  |  |
Total assets |  | 152,003 |  |  |
Total liabilities |  | 159,805 |  |  |
Net assets |  | (7,802) |  |  |
Investment differential |  | 0 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 2,278 |  |  |
Sales of JointVentures |  | 7,056 |  |  |
Profit (loss) for the period of JointVentures |  | ₩ (28,043) |  |  |
DAYONE Energy Co., Ltd. (formerly, Hyundai Energy Co., Ltd.) |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  |  |
Location |  | KOREA |  |  |
Percentage of ownership | [20] | 30.66% |  |  |
Effective percentage of ownership | [2] | 46.30% |  |  |
Acquisition cost |  | ₩ 71,070 |  |  |
Book value [Abstract] |  |  |  |  |
Acquisition |  | 0 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | 0 |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 0 |  |  |
Share in net assets |  | (25,224) |  |  |
Total assets |  | 441,875 |  |  |
Total liabilities |  | 496,355 |  |  |
Net assets |  | (54,480) |  |  |
Investment differential |  | 0 |  |  |
Intercompany transaction |  | (923) |  |  |
Others (consolidated FS) |  | 26,147 |  |  |
Sales of JointVentures |  | 93,832 |  |  |
Profit (loss) for the period of JointVentures |  | ₩ 30,269 |  |  |
OneEnergy Asia Limited |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  |  |
Location |  | VIETNAM |  |  |
Percentage of ownership |  | 40.00% |  |  |
Effective percentage of ownership | [2] | 40.00% |  |  |
Acquisition cost |  | ₩ 56,654 |  |  |
Book value [Abstract] |  |  |  |  |
Acquisition |  | 56,654 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | 0 |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 56,654 |  |  |
Share in net assets |  | 31,142 |  |  |
Total assets |  | 78,005 |  |  |
Total liabilities |  | 150 |  |  |
Net assets |  | 77,855 |  |  |
Investment differential |  | 25,512 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of JointVentures |  | 0 |  |  |
Profit (loss) for the period of JointVentures |  | ₩ (578) |  |  |
KAS INVESTMENT I LLC |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Holding company |  |  |
Location |  | USA |  |  |
Percentage of ownership | [21] | 29.89% |  |  |
Effective percentage of ownership | [2] | 29.89% |  |  |
Acquisition cost |  | ₩ 23,437 |  |  |
Book value [Abstract] |  |  |  |  |
Acquisition |  | 23,437 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | 0 |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 23,437 |  |  |
Share in net assets |  | 23,437 |  |  |
Total assets |  | 78,410 |  |  |
Total liabilities |  | 0 |  |  |
Net assets |  | 78,410 |  |  |
Investment differential |  | 0 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of JointVentures |  | 0 |  |  |
Profit (loss) for the period of JointVentures |  | ₩ 0 |  |  |
KAS INVESTMENT II LLC |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Holding company |  |  |
Location |  | USA |  |  |
Percentage of ownership | [21] | 29.89% |  |  |
Effective percentage of ownership | [2] | 29.89% |  |  |
Acquisition cost |  | ₩ 23,343 |  |  |
Book value [Abstract] |  |  |  |  |
Acquisition |  | 23,343 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | 0 |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 23,343 |  |  |
Share in net assets |  | 23,343 |  |  |
Total assets |  | 78,096 |  |  |
Total liabilities |  | 0 |  |  |
Net assets |  | 78,096 |  |  |
Investment differential |  | 0 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of JointVentures |  | 0 |  |  |
Profit (loss) for the period of JointVentures |  | ₩ 0 |  |  |
Energyco LLC |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  |  |
Location |  | KOREA |  |  |
Percentage of ownership |  | 29.00% |  |  |
Effective percentage of ownership | [2] | 29.00% |  |  |
Acquisition cost |  | ₩ 1,659 |  |  |
Book value [Abstract] |  |  |  |  |
Acquisition |  | 1,659 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | 0 |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 1,659 |  |  |
Share in net assets |  | 830 |  |  |
Total assets |  | 3,425 |  |  |
Total liabilities |  | 563 |  |  |
Net assets |  | 2,862 |  |  |
Investment differential |  | 829 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of JointVentures |  | 0 |  |  |
Profit (loss) for the period of JointVentures |  | ₩ (2,856) |  |  |
CAES, LLC |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Holding company |  |  |
Location |  | USA |  |  |
Percentage of ownership |  | 36.00% |  |  |
Effective percentage of ownership | [2] | 36.00% |  |  |
Acquisition cost |  | ₩ 19,414 |  |  |
Book value [Abstract] |  |  |  |  |
Acquisition |  | 19,414 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | (297) |  |  |
Share of income (loss) |  | 0 |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | (1,491) |  |  |
Ending balance |  | 17,626 |  |  |
Share in net assets |  | 14,702 |  |  |
Total assets |  | 40,840 |  |  |
Total liabilities |  | 0 |  |  |
Net assets |  | 40,840 |  |  |
Investment differential |  | 2,924 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of JointVentures |  | 0 |  |  |
Profit (loss) for the period of JointVentures |  | ₩ (1,656) |  |  |
Hapcheon Floating Photovoltaic Power Plant Inc. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  |  |
Location |  | KOREA |  |  |
Percentage of ownership | [3] | 19.47% |  |  |
Effective percentage of ownership | [2] | 19.47% |  |  |
Acquisition cost |  | ₩ 1,890 |  |  |
Book value [Abstract] |  |  |  |  |
Acquisition |  | 1,890 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | 0 |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 1,890 |  |  |
Share in net assets |  | 1,890 |  |  |
Total assets |  | 9,708 |  |  |
Total liabilities |  | 0 |  |  |
Net assets |  | 9,708 |  |  |
Investment differential |  | 0 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of JointVentures |  | 0 |  |  |
Profit (loss) for the period of JointVentures |  | ₩ 0 |  |  |
Busan Industrial Solar Power Co., Ltd. |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  |  |
Location |  | KOREA |  |  |
Percentage of ownership |  | 28.02% |  |  |
Effective percentage of ownership | [2] | 28.02% |  |  |
Acquisition cost |  | ₩ 510 |  |  |
Book value [Abstract] |  |  |  |  |
Acquisition |  | 510 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | 0 |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 510 |  |  |
Share in net assets |  | 220 |  |  |
Total assets |  | 15,283 |  |  |
Total liabilities |  | 14,499 |  |  |
Net assets |  | 784 |  |  |
Investment differential |  | 290 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of JointVentures |  | 19 |  |  |
Profit (loss) for the period of JointVentures |  | ₩ (485) |  |  |
Bitsolar Energy Co., Ltd., |  |  |  |  |
Disclosure of joint ventures [Line Items] |  |  |  |  |
Key operation activities |  | Power generation |  |  |
Location |  | KOREA |  |  |
Percentage of ownership |  | 27.10% |  |  |
Effective percentage of ownership | [2] | 27.10% |  |  |
Acquisition cost |  | ₩ 352 |  |  |
Book value [Abstract] |  |  |  |  |
Acquisition |  | 352 |  |  |
Disposal |  | 0 |  |  |
Dividends received |  | 0 |  |  |
Share of income (loss) |  | 0 |  |  |
Other comprehensive income (loss) |  | 0 |  |  |
Others (book value) |  | 0 |  |  |
Ending balance |  | 352 |  |  |
Share in net assets |  | (1,302) |  |  |
Total assets |  | 144,758 |  |  |
Total liabilities |  | 149,561 |  |  |
Net assets |  | (4,803) |  |  |
Investment differential |  | 1,654 |  |  |
Intercompany transaction |  | 0 |  |  |
Others (consolidated FS) |  | 0 |  |  |
Sales of JointVentures |  | 0 |  |  |
Profit (loss) for the period of JointVentures |  | ₩ (6,116) |  |  |
Significant restrictions on its abilities |  | Dividends can only be paid when all conditions of the loan agreement are satisfied. |  |  |
[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. Accordingly, the entities are classified as joint ventures.
[2] | The percentage of ownership shown above is after considering the treasury stocks and others.
[3] | According to the shareholders' agreement, the parties have joint control over all decisions related to financial and operation. Accordingly, the entity is classified as joint ventures.
[4] | Daejung Offshore Wind Power Co., Ltd. and GS Donghae Electric Power Co., Ltd. are reclassified from joint ventures to associates, and Jeongam Wind Power Co., Ltd. and Korea Power Engineering Service Co., Ltd. are reclassified from associates to joint ventures during the year ended December 31, 2019.
[5] | It was determined that there is objective evidence of impairment due to prolonged operating losses. As a result, the Company recognized an impairment loss of KRW248 million in impairment loss on investments in associates and joint ventures for the year ended December 31, 2019.
[6] | 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
[7] | It was determined that there is objective evidence of impairment due to prolonged operating losses. As a result, the Company recognized an impairment loss of KRW347 million in impairment loss on investments in associates and joint ventures for the year ended December 31, 2019.
[8] | The effective percentage of ownership is less than 20%. However, all operation related decisions must be agreed by ownership parties. Accordingly, the entity is classified as joint ventures.
[9] | The effective percentage of ownership is less than 20% but the Company has joint control over the entity as decisions on the major activities require the unanimous consent of the parties that collectively control the entity.
[10] | Although the nominal percentage of ownership is 29.00%, the effective percentage of ownership is 54.24%, considering the interest of financial investors as a liability component.
[11] | It was determined that there is objective evidence of impairment due to prolonged operating losses. As a result, the Company recognized an impairment loss of KRW21,827 million in impairment loss on investments in associates and joint ventures for the year ended December 31, 2019.
[12] | The effective percentage of ownership is more than 50%. However, all operation related decisions must be agreed by all ownership parties. Accordingly, the entity is classified as a joint venture.
[13] | The effective percentage of ownership is more than 50%. However, according to the shareholders' agreement, all operation related decisions must be agreed by all ownership parties. Accordingly, the entity is classified as a joint venture.
[14] | Eumseong Natural Gas Power Co., Ltd. and Dangjin Eco Solar Power Co., Ltd. were established by spin-off from Dangjin Eco Power Co., Ltd. After the spin-off, Eumseong Natural Gas Power Co., Ltd. was merged and absorbed by the Company during December 2019.
[15] | The temporary percentage of ownership is more than 50% due to differences in the timing of the payment. The Company is expected to exert significant influence after payment is completed in the first quarter of 2020.
[16] | 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
[17] | The effective percentage of ownership is less than 20%. However, according to the shareholders' agreement, decisions on the major activities must be agreed to by all ownership parties. Accordingly, the entities are classified as joint ventures.
[18] | The classification of the entity was changed from an associate to a joint venture, due to the additional investment during the year ended December 31, 2020
[19] | The percentage of ownership decreased due to the unequal capital increase. The entity was reclassified from an associate to a joint venture, due to the changes in voting rights.
[20] | The name of the entity has changed during the current year. According to the Dayone Energy Co., Ltd. (formerly, Hyundai 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. (formerly, Hyundai 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.
[21] | The entities were included in the joint ventures due to the new investment during the year ended December 31, 2020. Since the final settlement of the entity was not completed before the Company's financial statements date, the financial statements of October 7, were used for consolidation.

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