XML 173 R158.htm IDEA: XBRL DOCUMENT v3.25.1
Investments in Associates 3 (Details) - KRW (₩)
₩ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of associates [line items]      
Total assets ₩ 246,807,795 ₩ 239,714,965  
Total liabilities 205,444,962 202,450,215  
Sales 92,578,265 87,476,410 ₩ 70,546,024
Profit (loss) for the period 3,621,968 (4,716,144) ₩ (24,429,108)
Korea Gas Corporation      
Disclosure of associates [line items]      
Total assets 57,669,638 57,254,666  
Total liabilities 46,843,282 47,428,628  
Sales 38,388,740 44,555,995  
Profit (loss) for the period 1,148,985 (747,428)  
Korea Electric Power Industrial Development Co., Ltd.      
Disclosure of associates [line items]      
Total assets 213,423 174,788  
Total liabilities 109,367 73,065  
Sales 361,690 354,850  
Profit (loss) for the period 14,587 21,170  
YTN Co., Ltd.      
Disclosure of associates [line items]      
Total assets   352,188  
Total liabilities   108,108  
Sales   130,450  
Profit (loss) for the period   (3,616)  
Gangwon Wind Power Co., Ltd.      
Disclosure of associates [line items]      
Total assets 123,787 83,062  
Total liabilities 46,156 3,380  
Sales 23,400 32,525  
Profit (loss) for the period 7,415 14,098  
Hyundai Green Power Co., Ltd.      
Disclosure of associates [line items]      
Total assets 698,653 738,107  
Total liabilities 295,095 330,616  
Sales 109,081 107,367  
Profit (loss) for the period 9,354 7,446  
Korea Power Exchange      
Disclosure of associates [line items]      
Total assets 365,652 366,092  
Total liabilities 91,690 91,806  
Sales 120,586 119,182  
Profit (loss) for the period 1,795 4,443  
Taebaek Guinemi Wind Power Co., Ltd.      
Disclosure of associates [line items]      
Total assets 35,917 42,243  
Total liabilities 19,831 26,200  
Sales 5,155 5,529  
Profit (loss) for the period 213 716  
Daeryun Power Co., Ltd.      
Disclosure of associates [line items]      
Total assets 1,117,771 1,120,453  
Total liabilities 651,892 716,752  
Sales 397,332 451,527  
Profit (loss) for the period 61,893 4,043  
KNH Solar Co., Ltd.      
Disclosure of associates [line items]      
Total assets 8,110 12,142  
Total liabilities 93 314  
Sales 2,671 3,535  
Profit (loss) for the period 2,359 1,394  
SPC Power Corporation      
Disclosure of associates [line items]      
Total assets 301,805 287,249  
Total liabilities 18,716 28,485  
Sales 72,191 106,926  
Profit (loss) for the period 35,657 27,946  
Gemeng International Energy Co., Ltd.      
Disclosure of associates [line items]      
Total assets 8,301,632 7,507,274  
Total liabilities 5,803,020 5,189,729  
Sales 2,907,291 2,963,614  
Profit (loss) for the period (66,765) 33,580  
PT. Cirebon Electric Power      
Disclosure of associates [line items]      
Total assets 742,634 665,365  
Total liabilities 169,796 177,150  
Sales 281,041 265,054  
Profit (loss) for the period 15,070 27,341  
KNOC Nigerian East Oil Co., Ltd.      
Disclosure of associates [line items]      
Total assets 30,834 27,029  
Total liabilities 127,760 112,017  
Sales 0 0  
Profit (loss) for the period (31) (50)  
KNOC Nigerian West Oil Co., Ltd.      
Disclosure of associates [line items]      
Total assets 33,230 29,157  
Total liabilities 122,351 107,300  
Sales 0 0  
Profit (loss) for the period (31) (50)  
PT Wampu Electric Power      
Disclosure of associates [line items]      
Total assets 209,724 206,943  
Total liabilities 124,358 131,823  
Sales 19,146 20,155  
Profit (loss) for the period 7,598 (582)  
PT. Bayan Resources TBK      
Disclosure of associates [line items]      
Total assets 5,338,900 4,447,335  
Total liabilities 2,100,603 2,018,870  
Sales 4,700,051 4,675,174  
Profit (loss) for the period 1,285,816 1,670,522  
S-Power Co., Ltd.      
Disclosure of associates [line items]      
Total assets 739,732 762,398  
Total liabilities 369,429 427,807  
Sales 734,607 1,012,050  
Profit (loss) for the period 35,889 44,730  
Pioneer Gas Power Limited      
Disclosure of associates [line items]      
Total assets   274,693  
Total liabilities   532,005  
Sales   551  
Profit (loss) for the period   (49,745)  
Xe-Pian Xe-Namnoy Power Co., Ltd.      
Disclosure of associates [line items]      
Total assets 1,414,921 1,370,110  
Total liabilities 979,112 900,713  
Sales 182,433 171,978  
Profit (loss) for the period (81,032) (5,674)  
PT. Mutiara Jawa      
Disclosure of associates [line items]      
Total assets 28,266 27,296  
Total liabilities 8,489 9,474  
Sales 13,455 16,160  
Profit (loss) for the period 4,094 7,999  
Samcheok Eco Materials Co., Ltd.      
Disclosure of associates [line items]      
Total assets   22,544  
Total liabilities   39,895  
Sales   8,028  
Profit (loss) for the period   (1,776)  
Noeul Green Energy Co., Ltd.      
Disclosure of associates [line items]      
Total assets 95,570 89,861  
Total liabilities 108,793 107,834  
Sales 47,999 24,017  
Profit (loss) for the period 4,787 920  
Goseong Green Power Co., Ltd.      
Disclosure of associates [line items]      
Total assets 5,129,641 5,374,233  
Total liabilities 4,125,053 4,372,531  
Sales 1,310,775 1,580,545  
Profit (loss) for the period 2,823 152  
Gangneung Eco Power Co., Ltd.      
Disclosure of associates [line items]      
Total assets 5,359,845 5,381,984  
Total liabilities 4,667,564 4,665,083  
Sales 635,026 1,419,436  
Profit (loss) for the period (10,547) (7,388)  
Shin Pyeongtaek Power Co., Ltd.      
Disclosure of associates [line items]      
Total assets 1,052,048 1,222,968  
Total liabilities 678,140 832,633  
Sales 841,818 1,040,219  
Profit (loss) for the period 58,855 201,635  
Haeng Bok Do Si Photovoltaic Power Co., Ltd.      
Disclosure of associates [line items]      
Total assets 1,666 1,618  
Total liabilities 385 573  
Sales 476 575  
Profit (loss) for the period 135 82  
Dongducheon Dream Power Co., Ltd.      
Disclosure of associates [line items]      
Total assets 1,350,004 1,337,529  
Total liabilities 1,044,020 1,042,681  
Sales 1,360,809 1,744,247  
Profit (loss) for the period 10,453 (8,608)  
Jinbhuvish Power Generation Pvt. Ltd.      
Disclosure of associates [line items]      
Total assets 67,903 61,227  
Total liabilities 14,023 12,644  
Sales 0 0  
Profit (loss) for the period 0 0  
Daejung Offshore Wind Power Co., Ltd.      
Disclosure of associates [line items]      
Total assets 5,419 5,277  
Total liabilities 2,220 2,094  
Sales 0 0  
Profit (loss) for the period 53 (145)  
GS Donghae Electric Power Co., Ltd.      
Disclosure of associates [line items]      
Total assets 1,910,960 1,932,098  
Total liabilities 1,089,101 1,170,085  
Sales 535,012 876,826  
Profit (loss) for the period 59,776 62,471  
Daegu Photovoltaic Co., Ltd.      
Disclosure of associates [line items]      
Total assets 11,767 14,140  
Total liabilities 3,025 4,471  
Sales 3,805 4,225  
Profit (loss) for the period 908 1,772  
Busan Green Energy Co., Ltd.      
Disclosure of associates [line items]      
Total assets 142,943 160,299  
Total liabilities 134,894 149,060  
Sales 66,924 69,108  
Profit (loss) for the period (3,140) (3,920)  
Hansuwon KNP Co., Ltd. (formerly, Korea Nuclear Partners Co., Ltd.)      
Disclosure of associates [line items]      
Total assets 4,324 3,063  
Total liabilities 1,444 899  
Sales 7,949 7,618  
Profit (loss) for the period 716 645  
Korea Electric Power Corporation Fund      
Disclosure of associates [line items]      
Total assets 13,676 23,981  
Total liabilities 67 108  
Sales 1,880 332  
Profit (loss) for the period 488 (2,921)  
Energy Infra Asset Management Co., Ltd.      
Disclosure of associates [line items]      
Total assets 14,037 13,628  
Total liabilities 1,229 1,371  
Sales 5,003 5,130  
Profit (loss) for the period 1,450 1,254  
Daegu clean Energy Co., Ltd.      
Disclosure of associates [line items]      
Total assets   368  
Total liabilities   324  
Sales   0  
Profit (loss) for the period   (1)  
Yaksu ESS Co., Ltd.      
Disclosure of associates [line items]      
Total assets 5,295 5,697  
Total liabilities 4,738 4,717  
Sales 749 508  
Profit (loss) for the period (423) (691)  
Nepal Water & Energy Development Company Private Limited      
Disclosure of associates [line items]      
Total assets 666,316 327,057  
Total liabilities 419,386 167,792  
Sales 123,848 82,720  
Profit (loss) for the period 10,732 (3,186)  
Gwangyang Green Energy Co., Ltd.      
Disclosure of associates [line items]      
Total assets 547,208 370,778  
Total liabilities 426,210 247,675  
Sales 0 0  
Profit (loss) for the period (2,105) (2,034)  
PND Solar Co., Ltd.      
Disclosure of associates [line items]      
Total assets 32,025 34,804  
Total liabilities 26,570 30,127  
Sales 5,331 5,413  
Profit (loss) for the period 737 373  
Hyundai Eco Energy Co., Ltd.      
Disclosure of associates [line items]      
Total assets 157,873 169,180  
Total liabilities 114,299 128,481  
Sales 25,081 26,266  
Profit (loss) for the period 5,963 7,206  
YeongGwang Yaksu Wind Electric Co., Ltd.      
Disclosure of associates [line items]      
Total assets 36,659 38,720  
Total liabilities 37,065 38,173  
Sales 5,194 5,593  
Profit (loss) for the period (953) (241)  
Green Energy Electricity Generation Co., Ltd.      
Disclosure of associates [line items]      
Total assets 81,798 69,667  
Total liabilities 85,848 72,325  
Sales 1,942 948  
Profit (loss) for the period (1,392) (5,392)  
Korea Energy Solutions Co., Ltd.      
Disclosure of associates [line items]      
Total assets 1,303 1,151  
Total liabilities 318 303  
Sales 1,209 643  
Profit (loss) for the period 146 87  
ITR Co., Ltd.      
Disclosure of associates [line items]      
Total assets 720 480  
Total liabilities 898 490  
Sales 130 144  
Profit (loss) for the period (510) (234)  
STN Co., Ltd. (formerly, Structure test network Co., Ltd.)      
Disclosure of associates [line items]      
Total assets 1,870 1,818  
Total liabilities 99 127  
Sales 666 771  
Profit (loss) for the period 108 178  
Indeck Niles Development, LLC      
Disclosure of associates [line items]      
Total assets 1,234,170 1,157,838  
Total liabilities 704,296 675,638  
Sales 284,855 318,392  
Profit (loss) for the period 32,491 64,813  
Indeck Niles Asset Management, LLC      
Disclosure of associates [line items]      
Total assets 211 307  
Total liabilities 32 29  
Sales 1,157 1,081  
Profit (loss) for the period 1,120 1,001  
Hanwha Corporation-linked Sunlight Power Special Private Equity Investment Trust No. 1      
Disclosure of associates [line items]      
Total assets 12,665 13,444  
Total liabilities 178 186  
Sales 722 820  
Profit (loss) for the period 689 747  
Suwon New Power Co., Ltd.      
Disclosure of associates [line items]      
Total assets 15,427 3,448  
Total liabilities 13,338 1,130  
Sales 5,072 2,318  
Profit (loss) for the period (229) 341  
Gwangbaek Solar Power Investment Co., Ltd.      
Disclosure of associates [line items]      
Total assets 260,641 287,838  
Total liabilities 249,642 276,840  
Sales 9,658 11,267  
Profit (loss) for the period 1,188 1,513  
Go deok Clean Energy Co., Ltd      
Disclosure of associates [line items]      
Total assets 130,520 139,352  
Total liabilities 117,267 127,545  
Sales 49,187 22,671  
Profit (loss) for the period 1,465 2,426  
SureDataLab Co., Ltd.      
Disclosure of associates [line items]      
Total assets 660 890  
Total liabilities 461 416  
Sales 675 548  
Profit (loss) for the period (291) (263)  
SEP Co., Ltd.      
Disclosure of associates [line items]      
Total assets 45 45  
Total liabilities 118 117  
Sales 0 0  
Profit (loss) for the period (1) (7)  
Hankook Electric Power Information Co., Ltd.      
Disclosure of associates [line items]      
Total assets 2,381 2,270  
Total liabilities 991 974  
Sales 2,135 1,672  
Profit (loss) for the period 58 223  
Tronix Co., Ltd.      
Disclosure of associates [line items]      
Total assets 4,824 4,564  
Total liabilities 3,659 2,807  
Sales 2,578 2,718  
Profit (loss) for the period 42 578  
O2&B Global Co., Ltd.      
Disclosure of associates [line items]      
Total assets 453 369  
Total liabilities 485 264  
Sales 149 242  
Profit (loss) for the period (104) (73)  
Muan Sunshine Solar Power Plant Co., Ltd.      
Disclosure of associates [line items]      
Total assets 128,131 136,382  
Total liabilities 116,742 124,745  
Sales 16,246 16,360  
Profit (loss) for the period 2,552 2,999  
Bigeum Resident Photovoltaic Power Co., Ltd.      
Disclosure of associates [line items]      
Total assets 441,227 303,462  
Total liabilities 412,276 309,185  
Sales 10,812 0  
Profit (loss) for the period (6,845) (3,031)  
Goesan Solar Park Co., Ltd.      
Disclosure of associates [line items]      
Total assets 48,924 50,659  
Total liabilities 38,119 40,738  
Sales 6,143 6,530  
Profit (loss) for the period 884 985  
Saemangeum Heemang Photovoltaic Co., Ltd.      
Disclosure of associates [line items]      
Total assets 149,528 152,496  
Total liabilities 105,535 113,407  
Sales 22,600 23,448  
Profit (loss) for the period 4,049 4,063  
Bitgoel Eco Energy Co., Ltd.      
Disclosure of associates [line items]      
Total assets 79,709 85,571  
Total liabilities 51,776 60,302  
Sales 28,110 29,907  
Profit (loss) for the period 6,064 7,019  
Jeju Gimnyeong Wind Power Co., Ltd.      
Disclosure of associates [line items]      
Total assets 53,335 56,906  
Total liabilities 52,503 56,087  
Sales 10,889 9,261  
Profit (loss) for the period 13 (2,088)  
Seoroseoro Sunny Power Plant Co., Ltd.      
Disclosure of associates [line items]      
Total assets 6,680 6,813  
Total liabilities 4,309 4,650  
Sales 1,035 1,039  
Profit (loss) for the period 208 193  
Muan Solar park Co., Ltd.      
Disclosure of associates [line items]      
Total assets 188,303 204,168  
Total liabilities 158,595 171,642  
Sales 27,641 31,532  
Profit (loss) for the period 5,152 8,648  
YuDang Solar Co., Ltd.      
Disclosure of associates [line items]      
Total assets 18,321 20,566  
Total liabilities 15,238 17,717  
Sales 3,506 3,483  
Profit (loss) for the period 589 420  
Anjwa Smart Farm & Solar City Co., Ltd.      
Disclosure of associates [line items]      
Total assets 237,359 258,076  
Total liabilities 199,954 223,831  
Sales 36,948 37,742  
Profit (loss) for the period 3,530 3,119  
KPE Green Energy Co., Ltd. (formerly, Daewon Green Energy Co., Ltd.)      
Disclosure of associates [line items]      
Total assets 135,307 143,157  
Total liabilities 103,023 112,651  
Sales 41,289 58,423  
Profit (loss) for the period 2,131 13,407  
G.GURU Co., Ltd.      
Disclosure of associates [line items]      
Total assets 273 818  
Total liabilities 133 142  
Sales 103 162  
Profit (loss) for the period (535) (540)  
UD4M Co., Ltd.      
Disclosure of associates [line items]      
Total assets 1,076 1,242  
Total liabilities 227 194  
Sales 1,142 1,066  
Profit (loss) for the period (170) (59)  
Dongbu Highway Solar Co., Ltd.      
Disclosure of associates [line items]      
Total assets 16,139 16,563  
Total liabilities 13,833 14,913  
Sales 2,665 2,580  
Profit (loss) for the period 656 140  
Seobu Highway Solar Co., Ltd.      
Disclosure of associates [line items]      
Total assets 16,323 16,739  
Total liabilities 13,428 14,707  
Sales 2,737 2,646  
Profit (loss) for the period 863 451  
Korea Energy Data Co., Ltd.      
Disclosure of associates [line items]      
Total assets 212 313  
Total liabilities 134 191  
Sales 167 348  
Profit (loss) for the period (104) (87)  
Gangneung Sacheon Fuel Cell Co., Ltd.      
Disclosure of associates [line items]      
Total assets 148,460 138,761  
Total liabilities 125,975 119,779  
Sales 45,534 23,523  
Profit (loss) for the period 5,768 9,191  
KOSTURE Co., Ltd.      
Disclosure of associates [line items]      
Total assets   196  
Total liabilities   22  
Sales   208  
Profit (loss) for the period   16  
Taebaek Gadeoksan Wind Power Co., Ltd.      
Disclosure of associates [line items]      
Total assets 187,927 196,810  
Total liabilities 120,551 139,675  
Sales 32,534 35,000  
Profit (loss) for the period 15,536 13,138  
Chuncheon Green Energy Co., Ltd.      
Disclosure of associates [line items]      
Total assets 234,506 217,335  
Total liabilities 195,354 197,676  
Sales 68,010 6,052  
Profit (loss) for the period 11,494 (497)  
Yeomsubong Wind Power Co., Ltd.      
Disclosure of associates [line items]      
Total assets 45,468 32,742  
Total liabilities 44,236 30,586  
Sales 0 0  
Profit (loss) for the period (924) (1,753)  
Yeongyang Wind Power Corporation II      
Disclosure of associates [line items]      
Total assets 136,360 133,053  
Total liabilities 105,721 106,419  
Sales 18,376 15,190  
Profit (loss) for the period 4,005 8,797  
Haeparang Energy Co., Ltd.      
Disclosure of associates [line items]      
Total assets 63,749 40,698  
Total liabilities 56,030 32,359  
Sales 758 0  
Profit (loss) for the period (620) (335)  
Saemangeum Sebit Power Plant Co., Ltd.      
Disclosure of associates [line items]      
Total assets 160,225 165,283  
Total liabilities 93,086 97,997  
Sales 20,376 22,663  
Profit (loss) for the period (147) (812)  
Boulder Solar III, LLC      
Disclosure of associates [line items]      
Total assets   1,929  
Total liabilities   0  
Sales   0  
Profit (loss) for the period   0  
PlatformN. Co., Ltd      
Disclosure of associates [line items]      
Total assets 162 184  
Total liabilities 223 394  
Sales 430 404  
Profit (loss) for the period 139 (566)  
PT. Cirebon Energi Prasarana      
Disclosure of associates [line items]      
Total assets 3,831,992 3,372,539  
Total liabilities 2,863,534 2,606,566  
Sales 543,340 434,806  
Profit (loss) for the period 60,512 73,285  
Green Radiation Co., Ltd      
Disclosure of associates [line items]      
Total assets 521 1,038  
Total liabilities 663 812  
Sales 613 298  
Profit (loss) for the period (272) 100  
Future Convergence Technology Laboratory. Co., Ltd      
Disclosure of associates [line items]      
Total assets 384 479  
Total liabilities 277 302  
Sales 0 0  
Profit (loss) for the period (83) (70)  
Eco Motion Co., Ltd      
Disclosure of associates [line items]      
Total assets 1,830 1,664  
Total liabilities 684 329  
Sales 350 633  
Profit (loss) for the period 82 372  
REC's Innovation Co., Ltd. (formerly, Wang San Engineering. Co,. Ltd.)      
Disclosure of associates [line items]      
Total assets 2,921 1,801  
Total liabilities 1,518 1,081  
Sales 1,010 856  
Profit (loss) for the period 232 0  
ACE      
Disclosure of associates [line items]      
Total assets 359 385  
Total liabilities 308 348  
Sales 27 53  
Profit (loss) for the period 14 (30)  
Environment and Energy Co., Ltd      
Disclosure of associates [line items]      
Total assets 31 89  
Total liabilities 0 0  
Sales 0 0  
Profit (loss) for the period (36) (4)  
Santiago Solar Power SpA      
Disclosure of associates [line items]      
Total assets 85,063 88,687  
Total liabilities 71,139 65,149  
Sales 4,862 0  
Profit (loss) for the period (9,488) (2,994)  
Yanggu Floating Photovoltaic Power Plant Inc      
Disclosure of associates [line items]      
Total assets 15,300 17,092  
Total liabilities 12,382 14,470  
Sales 2,259 135  
Profit (loss) for the period 210 (495)  
Power Embedded      
Disclosure of associates [line items]      
Total assets 400 298  
Total liabilities 112 2  
Sales 0 0  
Profit (loss) for the period (7) (2)  
Changwon SG Energy Co., Ltd.      
Disclosure of associates [line items]      
Total assets 4,878 5,738  
Total liabilities 1,328 1,649  
Sales 3,342 436  
Profit (loss) for the period (539) (703)  
Donpyung Technology. Co., Ltd.      
Disclosure of associates [line items]      
Total assets 2,205 2,039  
Total liabilities 673 643  
Sales 2,317 1,664  
Profit (loss) for the period 135 93  
HORANG ENERGY Inc.      
Disclosure of associates [line items]      
Total assets 94,637 64,736  
Total liabilities 85,678 54,923  
Sales 0 0  
Profit (loss) for the period (947) (389)  
Hoenggye Renewable Energy Co., Ltd      
Disclosure of associates [line items]      
Total assets 43,206 24,702  
Total liabilities 43,942 25,730  
Sales 0 0  
Profit (loss) for the period (62) (4,864)  
Haman Green Energy Co., Ltd.      
Disclosure of associates [line items]      
Total assets 122,937 40,801  
Total liabilities 114,908 32,285  
Sales 0 0  
Profit (loss) for the period (1,165) (5,116)  
Songsan Green Energy Co., Ltd.      
Disclosure of associates [line items]      
Total assets 120,001 46,016  
Total liabilities 106,939 32,262  
Sales 121 0  
Profit (loss) for the period (692) ₩ (100)  
SkyPic Inc.      
Disclosure of associates [line items]      
Total assets 167    
Total liabilities 37    
Sales 3    
Profit (loss) for the period (7)    
HyChangwon Fuel Cell. Co., Ltd.      
Disclosure of associates [line items]      
Total assets 114,580    
Total liabilities 91,679    
Sales 0    
Profit (loss) for the period (309)    
Dreams Co.,Ltd.      
Disclosure of associates [line items]      
Total assets 233    
Total liabilities 183    
Sales 208    
Profit (loss) for the period (49)    
DEEPAI Co.,Ltd.      
Disclosure of associates [line items]      
Total assets 813    
Total liabilities 449    
Sales 240    
Profit (loss) for the period (319)    
Amaala Sustainable Company for Energy LLC      
Disclosure of associates [line items]      
Total assets 697,354    
Total liabilities 697,158    
Sales 0    
Profit (loss) for the period ₩ 0