XML 166 R151.htm IDEA: XBRL DOCUMENT v3.23.1
Consolidated Subsidiaries - Summary of Financial Information of Consolidated Subsidiaries (Details) - KRW (₩)
₩ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Korea Hydro & Nuclear Power Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets ₩ 69,129,625 ₩ 64,638,690
Total liabilities 42,843,974 38,361,337
Sales 10,386,091 9,324,391
Profit (loss) for the year (16,382) 302,232
Korea South-East Power Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 13,855,071 11,487,325
Total liabilities 7,410,881 6,510,826
Sales 8,972,991 5,188,856
Profit (loss) for the year 71,662 (58,096)
Korea Midland Power Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 16,062,605 13,761,908
Total liabilities 10,776,943 9,912,907
Sales 8,629,165 5,353,915
Profit (loss) for the year (58,173) 60,737
Korea Western Power Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 13,459,054 10,822,780
Total liabilities 8,125,312 7,116,671
Sales 8,112,727 4,970,805
Profit (loss) for the year 106,361 (171,562)
Korea Southern Power Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 14,011,354 11,350,984
Total liabilities 8,296,983 7,099,881
Sales 9,304,362 5,671,989
Profit (loss) for the year (68,315) (113,352)
Korea East-West Power Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 12,079,954 9,895,739
Total liabilities 5,818,789 5,163,005
Sales 6,925,094 4,743,030
Profit (loss) for the year 2,888 10,872
KEPCO Engineering & Construction Company, Inc.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 815,533 705,043
Total liabilities 272,119 191,592
Sales 505,291 433,127
Profit (loss) for the year 17,954 16,452
KEPCO Plant Service & Engineering Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 1,555,453 1,420,705
Total liabilities 344,702 311,607
Sales 1,425,913 1,375,668
Profit (loss) for the year 97,881 98,132
KEPCO Nuclear Fuel Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 949,455 837,249
Total liabilities 490,215 405,614
Sales 304,405 323,729
Profit (loss) for the year 31,508 25,799
KEPCO KDN Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 734,439 721,634
Total liabilities 166,272 189,242
Sales 739,453 673,261
Profit (loss) for the year 42,584 67,244
KEPCO International HongKong Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 128,784 128,968
Total liabilities 0 0
Sales 0 0
Profit (loss) for the year (216) 341
KEPCO International Philippines Inc.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 127,744 154,317
Total liabilities 101 482
Sales 0 0
Profit (loss) for the year 9,976 8,766
KEPCO Gansu International Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 7,125 7,151
Total liabilities 598 559
Sales 0 0
Profit (loss) for the year (22) (25)
KEPCO Philippines Holdings Inc.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 191,634 191,757
Total liabilities 129 128
Sales 0 0
Profit (loss) for the year 39,346 60,192
KEPCO Philippines Corporation    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 3,799 6,122
Total liabilities 14 19
Sales 0 0
Profit (loss) for the year 102 (68)
KEPCO Ilijan Corporation    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 231,132 259,069
Total liabilities 3,642 38,555
Sales 23,263 60,532
Profit (loss) for the year 16,455 12,981
KEPCO Lebanon SARL    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 1,890 1,729
Total liabilities 10,482 9,794
Sales 0 0
Profit (loss) for the year 20 (86)
KEPCO Neimenggu International Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 269,582 241,299
Total liabilities 3,917 3,106
Sales 0 0
Profit (loss) for the year 9,938 16,762
KEPCO Shanxi International Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 597,635 551,407
Total liabilities 222,186 207,844
Sales 0 0
Profit (loss) for the year (11,312) 3,526
KOMIPO Global Pte Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 388,071 302,340
Total liabilities 1,817 1,351
Sales 0 0
Profit (loss) for the year 58,030 11,462
KEPCO Netherlands B.V.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 137,454 133,610
Total liabilities 64 866
Sales 0 0
Profit (loss) for the year 8,570 5,395
KEPCO Australia Pty., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 579 481
Total liabilities 11 11
Sales 0 0
Profit (loss) for the year 102 25
KOSEP Australia Pty., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 74,180 44,798
Total liabilities 13,097 5,561
Sales 52,271 22,013
Profit (loss) for the year 24,443 8,268
KOMIPO Australia Pty., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 81,216 54,162
Total liabilities 10,327 5,648
Sales 52,272 22,013
Profit (loss) for the year 23,368 5,942
KOWEPO Australia Pty., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 81,696 54,564
Total liabilities 10,184 4,766
Sales 52,271 22,013
Profit (loss) for the year 22,745 7,387
KOSPO Australia Pty., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 41,872 43,886
Total liabilities 10,174 4,502
Sales 52,271 22,013
Profit (loss) for the year 24,362 5,940
KEPCO Middle East Holding Company    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 116,731 104,068
Total liabilities 102,054 89,756
Sales 0 0
Profit (loss) for the year (634) 1,144
Qatrana Electric Power Company    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 513,277 480,809
Total liabilities 247,027 262,725
Sales 24,354 21,368
Profit (loss) for the year 22,578 19,156
KHNP Canada Energy Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 107,200 109,326
Total liabilities 6,218 25
Sales 0 0
Profit (loss) for the year 149 29
KEPCO Bylong Australia Pty., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 44,034 44,319
Total liabilities 437,852 394,349
Sales 0 0
Profit (loss) for the year (45,880) (37,065)
Korea Waterbury Uranium Limited Partnership    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 20,934 20,920
Total liabilities 224 159
Sales 0 0
Profit (loss) for the year (116) (57)
KEPCO Holdings de Mexico    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 728 148
Total liabilities 1,974 27
Sales 0 0
Profit (loss) for the year (1,363) (8)
KST Electric Power Company, S.A.P.I. de C.V.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 653,830 584,625
Total liabilities 528,315 435,796
Sales 232,893 151,467
Profit (loss) for the year 23,122 18,499
KEPCO Energy Service Company    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 2,238 2,500
Total liabilities 2,173 956
Sales 7,015 12,070
Profit (loss) for the year (211) 574
KEPCO Netherlands S3 B.V.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 71,326 51,045
Total liabilities 16,419 150
Sales 0 0
Profit (loss) for the year 4,465 3,199
PT. KOMIPO Pembangkitan Jawa Bali    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 15,753 13,499
Total liabilities 3,232 3,314
Sales 22,488 18,296
Profit (loss) for the year 3,668 885
PT. Cirebon Power Service    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 2,316 2,545
Total liabilities 784 631
Sales 9,602 8,664
Profit (loss) for the year 355 505
KOWEPO International Corporation    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 0 0
Total liabilities 10 10
Sales 0 0
Profit (loss) for the year 0 0
KOSPO Jordan LLC    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 22,854 33,782
Total liabilities 6,964 16,298
Sales 45,009 9,698
Profit (loss) for the year 7,657 816
EWP America Inc.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 47,775 [1] 46,687 [2]
Total liabilities 2,595 [1] 1,278 [2]
Sales 21,717 [1] 18,335 [2]
Profit (loss) for the year 4,337 [1] 6,807 [2]
KNF Canada Energy Limited    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 2,116 2,101
Total liabilities 34 17
Sales 0 0
Profit (loss) for the year (59) (43)
EWP Barbados 1 SRL    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 395,067 354,024
Total liabilities 901 1,172
Sales 3,230 2,861
Profit (loss) for the year 34,260 16,168
Gyeonggi Green Energy Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 220,414 243,977
Total liabilities 226,517 224,132
Sales 112,524 93,794
Profit (loss) for the year (26,004) (5,588)
PT. Tanggamus Electric Power    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 227,638 212,161
Total liabilities 163,106 167,409
Sales 3,781 2,903
Profit (loss) for the year 5,778 3,017
Gyeongju Wind Power Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 98,513 96,937
Total liabilities 55,579 60,702
Sales 24,888 15,289
Profit (loss) for the year 9,711 3,132
KOMIPO America Inc.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets [3] 571,200 329,986
Total liabilities [3] 317,903 56,325
Sales [3] 34,059 1,715
Profit (loss) for the year [3] (3,293) (1,311)
PT. EWP Indonesia    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 93,390 47,031
Total liabilities 5 1,226
Sales 0 0
Profit (loss) for the year 4,100 4,615
KEPCO Netherlands J3 B.V.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 135,213 151,478
Total liabilities 63 172
Sales 0 0
Profit (loss) for the year 19,396 27,365
Korea Offshore Wind Power Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 376,449 359,393
Total liabilities 192,335 188,507
Sales 52,526 36,020
Profit (loss) for the year 13,083 3,820
Global One Pioneer B.V.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 135 119
Total liabilities 41 116
Sales 0 0
Profit (loss) for the year (68) (132)
Global Energy Pioneer B.V.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 320 293
Total liabilities 40 131
Sales 0 0
Profit (loss) for the year (64) (147)
Mira Power Limited    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 416,750 424,183
Total liabilities 310,529 311,459
Sales 57,135 70,287
Profit (loss) for the year 12,394 34,018
KOSEP Material Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 3,985 3,405
Total liabilities 662 842
Sales 4,589 4,518
Profit (loss) for the year 775 442
Commerce and Industry Energy Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 79,172 85,315
Total liabilities 32,147 35,543
Sales 31,068 30,531
Profit (loss) for the year (3,730) 1,345
KEPCO KPS Philippines Corp.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 5,294 8,051
Total liabilities 600 3,652
Sales 5,232 9,768
Profit (loss) for the year 1,004 1,493
KOSPO Chile SpA    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 159,500 142,956
Total liabilities 70,037 56,688
Sales 0 0
Profit (loss) for the year (2,811) (851)
PT. KOWEPO Sumsel Operation and Maintenance Services    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 25 116
Total liabilities 252 259
Sales 0 0
Profit (loss) for the year (94) 0
Hee Mang Sunlight Power Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 5,877 6,242
Total liabilities 2,606 3,272
Sales 862 499
Profit (loss) for the year 304 47
Fujeij Wind Power Company    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 213,113 200,783
Total liabilities 163,690 169,340
Sales 0 0
Profit (loss) for the year 16,564 14,739
KOSPO Youngnam Power Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 425,000 393,745
Total liabilities 312,831 292,765
Sales 568,224 318,770
Profit (loss) for the year 10,878 6,339
Chitose Solar Power Plant LLC    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 109,964 125,578
Total liabilities 94,366 109,470
Sales 14,384 16,630
Profit (loss) for the year 1,615 1,794
KEPCO Energy Solution Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 317,392 317,676
Total liabilities 6,147 4,938
Sales 33,638 21,423
Profit (loss) for the year 138 3,104
KEPCO Solar Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 243,221 231,567
Total liabilities 25,405 22,229
Sales 24,778 11,305
Profit (loss) for the year 9,305 2,014
KOSPO Power Services Ltda.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 6,722 8,007
Total liabilities 4,762 5,800
Sales 17,911 21,133
Profit (loss) for the year (358) (356)
Energy New Industry Specialized Investment Private Investment Trust    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 451,762 [4] 336,932 [5]
Total liabilities 4,338 [4] 28,536 [5]
Sales 24,725 [4] 19,405 [5]
Profit (loss) for the year 7,093 [4] 11,116 [5]
KOEN Bylong Pty., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 11 8
Total liabilities 119 86
Sales 0 0
Profit (loss) for the year (12) 0
KOMIPO Bylong Pty., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 11 8
Total liabilities 122 86
Sales 0 0
Profit (loss) for the year (33) (8)
KOWEPO Bylong Pty., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 8 8
Total liabilities 94 86
Sales 0 0
Profit (loss) for the year (7) (18)
KOSPO Bylong Pty., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 25 73
Total liabilities 148 168
Sales 0 0
Profit (loss) for the year (17) (20)
EWP Bylong Pty., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 8 8
Total liabilities 54 54
Sales 0 0
Profit (loss) for the year 1 0
KOWEPO Lao International    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 8,248 12,974
Total liabilities 87 70
Sales 10,010 8,543
Profit (loss) for the year 11,185 5,681
KEPCO US Inc.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 91 17,601
Total liabilities 0 0
Sales 0 0
Profit (loss) for the year (19,181) 0
KEPCO Alamosa LLC    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets   34,100
Total liabilities   297
Sales   124
Profit (loss) for the year   (62)
KEPCO Solar of Alamosa LLC    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets   57,104
Total liabilities   41,953
Sales   8,008
Profit (loss) for the year   (742)
KEPCO Mangilao Holdings LLC    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 112,948 28,504
Total liabilities 40,558 32,501
Sales 21,743 0
Profit (loss) for the year 21,166 (556)
Mangilao Investment LLC    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 258,674 43,459
Total liabilities 4 29
Sales 0 0
Profit (loss) for the year (1) (14)
KEPCO Mangilao Solar, LLC    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 240,736 206,018
Total liabilities 373 166,095
Sales 8,870 0
Profit (loss) for the year (14,818) (865)
Jeju Hanlim Offshore Wind Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 185,357 41,325
Total liabilities 111,343 5,139
Sales 0 0
Profit (loss) for the year (3,546) (2,893)
PT. Siborpa Eco Power    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 12,050 11,306
Total liabilities 3 0
Sales 0 0
Profit (loss) for the year (39) (105)
PT. Korea Energy Indonesia    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 1,675 1,917
Total liabilities 80 215
Sales 1,937 1,681
Profit (loss) for the year (104) 37
KOLAT SpA    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 48,787 28,349
Total liabilities 3,701 849
Sales 1,647 180
Profit (loss) for the year 1,888 (464)
KEPCO California, LLC    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 46,151 43,732
Total liabilities 4,768 4,113
Sales 596 1,310
Profit (loss) for the year (670) 160
KEPCO Mojave Holdings, LLC    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 95,550 95,294
Total liabilities 75,846 71,358
Sales 0 0
Profit (loss) for the year (4,705) (4,254)
Incheon Fuel Cell Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 268,063 268,100
Total liabilities 242,176 236,901
Sales 107,193 54,188
Profit (loss) for the year (5,323) 8,738
KOEN Service Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 9,353 8,963
Total liabilities 7,035 6,557
Sales 36,340 35,190
Profit (loss) for the year 356 2,326
KOMIPO Service Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 6,597 4,384
Total liabilities 4,503 4,475
Sales 35,031 32,323
Profit (loss) for the year 905 (96)
KOWEPO Service Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 6,266 7,289
Total liabilities 3,130 5,869
Sales 34,031 31,700
Profit (loss) for the year 171 303
KOSPO Service Co., Ltd    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 6,672 5,762
Total liabilities 5,048 4,990
Sales 28,321 26,257
Profit (loss) for the year 60 31
EWP Service Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 3,756 5,483
Total liabilities 2,507 5,455
Sales 24,526 24,957
Profit (loss) for the year 581 14
PT. KOMIPO Energy Indonesia    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 2,978 2,996
Total liabilities 368 395
Sales 1,698 2,077
Profit (loss) for the year 83 106
KNF Partners Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 2,285 1,800
Total liabilities 1,053 969
Sales 5,997 5,664
Profit (loss) for the year 293 152
KOSPO USA Inc.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 315,018 286,081
Total liabilities 430 293
Sales 0 0
Profit (loss) for the year 5,024 968
Nambu USA LLC    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 297,516 277,698
Total liabilities 0 0
Sales 0 0
Profit (loss) for the year 670 568
Tamra Offshore Wind Power Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 133,598 146,736
Total liabilities 93,639 106,961
Sales 18,332 21,731
Profit (loss) for the year 5,316 5,168
KEPCO MCS Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 114,316 80,277
Total liabilities 52,241 39,139
Sales 363,627 349,116
Profit (loss) for the year 8,468 19,043
KEPCO FMS Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 16,852 17,188
Total liabilities 11,667 15,577
Sales 105,339 94,210
Profit (loss) for the year 2,176 214
Firstkeepers Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 16,448 17,152
Total liabilities 12,912 16,041
Sales 84,620 77,189
Profit (loss) for the year 2,482 19
Secutec Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 12,578 13,176
Total liabilities 9,209 10,662
Sales 69,383 65,963
Profit (loss) for the year 690 1,774
SE Green Energy Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 149,189 153,105
Total liabilities 114,241 119,461
Sales 49,873 38,867
Profit (loss) for the year 1,304 4,025
KEPCO Mangilao America LLC    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets   2,173
Total liabilities   1
Sales   0
Profit (loss) for the year   0
Mangilao Intermediate Holdings LLC    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 236,266 220,690
Total liabilities 116,426 205,421
Sales 0 0
Profit (loss) for the year (4,709) (6,975)
KEPCO CSC Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 10,668 8,093
Total liabilities 8,937 6,799
Sales 46,559 41,854
Profit (loss) for the year (2,134) (2,101)
KOAK Power Limited    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 12,626 14,363
Total liabilities 839 393
Sales 0 0
Profit (loss) for the year 49 (551)
KOMIPO Europe B.V.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 81,364 70,431
Total liabilities 54 97
Sales 1,195 402
Profit (loss) for the year 1,134 (503)
Haenanum Energy Fund    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 7,416 7,463
Total liabilities 3 3
Sales 0 40
Profit (loss) for the year (48) (74)
Paju Ecoenergy Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 61,930 57,795
Total liabilities 3,066 2,118
Sales 20,718 15,425
Profit (loss) for the year 1,290 2,234
Guam Ukudu Power LLC    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 293,422 30,133
Total liabilities 323,292 30,438
Sales 0 0
Profit (loss) for the year (31,410) (2,030)
KPS Partners Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 3,619 2,809
Total liabilities 2,007 1,529
Sales 12,417 9,520
Profit (loss) for the year 487 323
KEPCO E&C Service Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 5,676 4,054
Total liabilities 1,897 1,889
Sales 16,180 15,985
Profit (loss) for the year 1,493 1,242
Moha Solar Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 29,096 32,808
Total liabilities 31,359 33,933
Sales 169 48
Profit (loss) for the year (1,137) (706)
Ogiri Solar Power Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 1,033 1,041
Total liabilities 23 1
Sales 0 0
Profit (loss) for the year (30) 9
KHNP USA LLC    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 1,290 766
Total liabilities 97 10
Sales 1,127 1,001
Profit (loss) for the year 392 267
KOMIPO Vanphong Power Service LLC    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 15,940 3,758
Total liabilities 3,333 860
Sales 20,233 3,853
Profit (loss) for the year 9,871 958
Energy Innovation Fund I    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 35,310 22,616
Total liabilities 445 3,202
Sales 0 0
Profit (loss) for the year (961) (888)
KHNP Chile SpA    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 5,547 5,294
Total liabilities 4,147 3,879
Sales 0 0
Profit (loss) for the year (16) 17
Yeong Yang Apollon Photovoltaic Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 1,566 1,775
Total liabilities 1,507 1,632
Sales 254 5
Profit (loss) for the year (82) (30)
Yeong Yang Corporation Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 1,559 1,776
Total liabilities 1,497 1,623
Sales 251 9
Profit (loss) for the year (91) (19)
SolarVader Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 1,568 1,772
Total liabilities 1,500 1,627
Sales 256 0
Profit (loss) for the year (78) (26)
Yeong Yang Innovation Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 1,557 1,773
Total liabilities 1,497 1,622
Sales 244 5
Profit (loss) for the year (91) (21)
Yeong Yang Horus Photovoltaic Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 1,552 1,771
Total liabilities 1,498 1,624
Sales 243 9
Profit (loss) for the year (93) (24)
Yeong Yang Solar Management Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 1,573 1,774
Total liabilities 1,500 1,625
Sales 262 0
Profit (loss) for the year (75) (23)
LSG Hydro Power Limited    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 1,144 1
Total liabilities 1,159 0
Sales 0 0
Profit (loss) for the year (18) 0
KOEN Bio Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 261 394
Total liabilities 219 199
Sales 639 51
Profit (loss) for the year (150) (305)
KOMIPO Iberian Solar Group, S.L.U.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 78,094 70,993
Total liabilities 65,012 56,707
Sales 0 0
Profit (loss) for the year (1,304) 1,354
Jeongam Wind Power Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 81,800 86,853
Total liabilities 68,317 74,267
Sales 10,722 10,476
Profit (loss) for the year 892 1,027
KOWEPO Europe B.V.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 42,865 39,973
Total liabilities 2,422 1,449
Sales 0 0
Profit (loss) for the year 1,668 (744)
Yeongdeok Sunrise Wind Power Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 42,187 21,252
Total liabilities 22,031 768
Sales 0 0
Profit (loss) for the year (328) (116)
KHNP Spain, S.L.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 3 5
Total liabilities 0 0
Sales 0 0
Profit (loss) for the year (1) 0
K-SOLAR SHINAN Co., Ltd. (formerly, TS Energy No. 25 Co., Ltd.)    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 320,227 353,324
Total liabilities 296,141 318,977
Sales 16,980 421
Profit (loss) for the year 3,690 ₩ (7,525)
Western Power Changgi Solar Co., Ltd. (formerly, Sam-Yang Photovoltaic Power Co., Ltd.)    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 48,770  
Total liabilities 44,647  
Sales 3,447  
Profit (loss) for the year (354)  
EWP Australia Pty., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 51,105  
Total liabilities 0  
Sales 0  
Profit (loss) for the year 15,203  
Columboola Solar Farm Hold Co Pty., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 310,271  
Total liabilities 214,792  
Sales 2,228  
Profit (loss) for the year 2,884  
Digital Innovation Growth Fund    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 12,594  
Total liabilities 100  
Sales 0  
Profit (loss) for the year (363)  
J Wind First, LLC    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 33,611  
Total liabilities 33,611  
Sales 450  
Profit (loss) for the year 0  
KEPCO Holding Company    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 3,273  
Total liabilities 17  
Sales 0  
Profit (loss) for the year (18)  
KEPCO for Power Company    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 57,501  
Total liabilities 58,441  
Sales 0  
Profit (loss) for the year (960)  
KEPCO for Maintenance Company    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 0  
Total liabilities 0  
Sales 0  
Profit (loss) for the year 0  
KOSPO Trumbull LLC    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 37  
Total liabilities 3  
Sales 0  
Profit (loss) for the year 0  
Changjuk Wind Power Co., Ltd.    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 29,208  
Total liabilities 3,137  
Sales 9,027  
Profit (loss) for the year 3,503  
KA Power Limited    
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items]    
Total assets 3,937  
Total liabilities 418  
Sales 0  
Profit (loss) for the year ₩ 442  
[1] Financial information of EWP America Inc. includes that of two other subsidiaries, EWP Renewable Corporation, and California Power Holdings, LLC.
[2] Financial information of EWP America Inc. includes that of three other subsidiaries, EWP Renewable Corporation, California Power Holdings, LLC and EWPRC Biomass Holdings, LLC.
[3] Financial information of KOMIPO America Inc. includes that of 17 other subsidiaries including Elara Equity Holdings, LLC and CVS Equity Holdings, LLC.
[4] Financial information of Energy New Industry Specialized Investment Private Investment Trust includes that of five other subsidiaries, BSK E-New Industry Fund VII, e-New Industry LB Fund 1, Songhyun e-New Industry Fund, BSK E-New Industry Fund X, and UI Carbon-Neutrality Fund.
[5] Financial information of Energy New Industry Specialized Investment Private Investment Trust includes that of four other subsidiaries, BSK
E-New
Industry Fund VII,
e-New
Industry LB Fund 1, Songhyun
e-New
Industry Fund and BSK
E-New
Industry Fund X.