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v3.20.1

Summary of financial information of consolidated subsidiaries (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Korea Hydro & Nuclear Power |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | ₩ 59,570,219 | ₩ 55,792,704
Total liabilities |  | 33,917,275 | 30,484,104
Sales |  | 8,969,072 | 8,858,717
Profit (loss) for the period |  | 306,007 | (137,613)
Korea South-East Power |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 10,938,358 | 9,997,758
Total liabilities |  | 5,866,642 | 4,948,553
Sales |  | 5,385,387 | 5,521,038
Profit (loss) for the period |  | 41,006 | 25,736
Korea Midland Power |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 12,684,828 | 10,839,218
Total liabilities |  | 8,977,766 | 7,088,013
Sales |  | 4,479,707 | 4,368,467
Profit (loss) for the period |  | (28,449) | (38,142)
Korea Western Power |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 10,514,438 | 9,902,752
Total liabilities |  | 6,637,451 | 5,965,410
Sales |  | 4,448,992 | 4,841,261
Profit (loss) for the period |  | (46,061) | (28,157)
Korea Southern Power |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 10,884,799 | 9,810,985
Total liabilities |  | 6,608,301 | 5,463,721
Sales |  | 5,084,907 | 5,539,793
Profit (loss) for the period |  | (41,342) | 55,439
Korea East-West Power |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 9,724,311 | 8,744,380
Total liabilities |  | 5,022,921 | 4,092,460
Sales |  | 4,855,964 | 4,933,525
Profit (loss) for the period |  | 56,698 | 3,345
KEPCO Engineering & Construction Company |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 735,207 | 771,480
Total liabilities |  | 242,994 | 310,100
Sales |  | 448,635 | 433,701
Profit (loss) for the period |  | 26,398 | 12,937
KEPCO Plant Service & Engineering |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 1,356,983 | 1,275,365
Total liabilities |  | 294,757 | 296,428
Sales |  | 1,244,613 | 1,239,604
Profit (loss) for the period |  | 157,737 | 160,791
KEPCO Nuclear Fuel |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 831,604 | 817,416
Total liabilities |  | 429,799 | 434,439
Sales |  | 309,055 | 230,667
Profit (loss) for the period |  | 24,618 | 15,835
KEPCO KDN |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 604,458 | 566,807
Total liabilities |  | 159,807 | 159,423
Sales |  | 625,567 | 622,154
Profit (loss) for the period |  | 42,205 | 60,016
Garolim Tidal Power Plant |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  |  | 608
Total liabilities |  |  | 345
Sales |  |  | 0
Profit (loss) for the period |  |  | (11)
KEPCO International HongKong |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 138,942 | 140,101
Total liabilities |  | 633 | 1
Sales |  | 0 | 0
Profit (loss) for the period |  | 3,330 | 3,307
KEPCO International Philippines |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 107,224 | 107,948
Total liabilities |  | 371 | 1,475
Sales |  | 0 | 0
Profit (loss) for the period |  | 67,991 | 52,539
KEPCO Gansu International |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 10,448 | 12,047
Total liabilities |  | 545 | 515
Sales |  | 0 | 0
Profit (loss) for the period |  | (20) | (24)
KEPCO Philippines Holdings |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 200,503 | 188,551
Total liabilities |  | 6,656 | 9,775
Sales |  | 0 | 0
Profit (loss) for the period |  | 66,200 | 53,219
KEPCO Philippines Corporation |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 6,706 | 6,394
Total liabilities |  | 332 | 213
Sales |  | 0 | 0
Profit (loss) for the period |  | (52) | 54
KEPCO Ilijan Corporation |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 371,377 | 431,444
Total liabilities |  | 56,156 | 53,413
Sales |  | 95,072 | 99,844
Profit (loss) for the period |  | 40,818 | 49,631
KEPCO Lebanon SARL |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 1,835 | 1,509
Total liabilities |  | 9,786 | 9,686
Sales |  | 0 | 0
Profit (loss) for the period |  | 255 | 413
KEPCO Neimenggu International |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 200,858 | 194,336
Total liabilities |  | 0 | 0
Sales |  | 0 | 0
Profit (loss) for the period |  | (354) | 20,829
KEPCO Shanxi International |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 538,604 | 519,991
Total liabilities |  | 208,895 | 201,732
Sales |  | 0 | 0
Profit (loss) for the period |  | 151 | 290
KOMIPO Global Pte |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 269,302 | 250,456
Total liabilities |  | 463 | 961
Sales |  | 0 | 0
Profit (loss) for the period |  | 10,400 | 11,478
KEPCO Netherlands B.V. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 122,577 | 130,460
Total liabilities |  | 101 | 77
Sales |  | 0 | 0
Profit (loss) for the period |  | 948 | 26,550
KOREA Imouraren Uranium Investment Corp. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 14,173 | 63,517
Total liabilities |  | 111 | 171
Sales |  | 0 | 0
Profit (loss) for the period |  | (49,716) | (89,852)
KEPCO Australia |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 364 | 439,719
Total liabilities |  | 14 | 14
Sales |  | 0 | 0
Profit (loss) for the period |  | (395,914) | 49
KOSEP Australia |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 32,782 | 37,057
Total liabilities |  | 2,911 | 2,832
Sales |  | 15,514 | 20,294
Profit (loss) for the period |  | 3,935 | 7,315
KOMIPO Australia |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 40,898 | 39,066
Total liabilities |  | 2,909 | 4,659
Sales |  | 15,514 | 20,294
Profit (loss) for the period |  | 3,766 | 7,193
KOWEPO Australia |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 44,182 | 39,341
Total liabilities |  | 5,772 | 4,702
Sales |  | 15,514 | 20,294
Profit (loss) for the period |  | 2,761 | 7,316
KOSPO Australia |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 37,254 | 36,525
Total liabilities |  | 5,012 | 3,585
Sales |  | 15,514 | 20,294
Profit (loss) for the period |  | 2,638 | 9,520
KEPCO Middle East Holding Company |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 102,164 | 101,201
Total liabilities |  | 87,834 | 92,862
Sales |  | 0 | 0
Profit (loss) for the period |  | 5,934 | 3,043
Qatrana Electric Power Company |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 490,723 | 484,383
Total liabilities |  | 322,857 | 326,486
Sales |  | 20,773 | 18,766
Profit (loss) for the period |  | 21,807 | 21,170
KHNP Canada Energy |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 44,639 | 49,776
Total liabilities |  | 43 | 35
Sales |  | 0 | 0
Profit (loss) for the period |  | (10) | (26)
KEPCO Bylong Australia |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 45,207 | 254,398
Total liabilities |  | 355,163 | 315,921
Sales |  | 0 | 0
Profit (loss) for the period |  | (220,909) | (29,573)
Korea Waterbury Uranium Limited Partnership |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 20,717 | 20,890
Total liabilities |  | 167 | 142
Sales |  | 0 | 0
Profit (loss) for the period |  | (77) | (74)
Korea Electric Power Nigeria |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  |  | 112
Total liabilities |  |  | 39
Sales |  |  | 727
Profit (loss) for the period |  |  | (93)
KEPCO Holdings de Mexico |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 187 | 248
Total liabilities |  | 25 | 57
Sales |  | 0 | 0
Profit (loss) for the period |  | (14) | (11)
KST Electric Power Company |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 539,952 | 535,807
Total liabilities |  | 449,459 | 457,867
Sales |  | 55,783 | 109,735
Profit (loss) for the period |  | (20,797) | 10,274
KEPCO Energy Service Company |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 2,262 | 1,940
Total liabilities |  | 1,995 | 1,454
Sales |  | 5,984 | 5,117
Profit (loss) for the period |  | (481) | (232)
KEPCO Netherlands S3 B.V. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 50,352 | 46,642
Total liabilities |  | 49 | 53
Sales |  | 0 | 0
Profit (loss) for the period |  | 2,637 | 2,382
PT. KOMIPO Pembangkitan Jawa Bali |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 12,391 | 11,405
Total liabilities |  | 5,719 | 5,472
Sales |  | 18,722 | 20,320
Profit (loss) for the period |  | 4,312 | 3,925
PT. Cirebon Power Service |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 2,089 | 1,588
Total liabilities |  | 313 | 273
Sales |  | 8,049 | 7,228
Profit (loss) for the period |  | 406 | 177
KOWEPO International Corporation |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 0 | 0
Total liabilities |  | 10 | 8
Sales |  | 0 | 0
Profit (loss) for the period |  | (2) | 0
KOSPO Jordan |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 17,489 | 16,315
Total liabilities |  | 1,521 | 3,432
Sales |  | 10,878 | 34,371
Profit (loss) for the period |  | 2,634 | 1,907
EWP Philippines Corporation |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 1,691 | 1,684
Total liabilities |  | 888 | 829
Sales |  | 0 | 0
Profit (loss) for the period |  | (111) | (11)
EWP America |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets | [1] | 66,622 | 72,525
Total liabilities | [1] | 2,619 | 4,903
Sales | [1] | 21,719 | 29,557
Profit (loss) for the period | [1] | (6,497) | (4,483)
KNF Canada Energy Limited |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 1,933 | 1,801
Total liabilities |  | 24 | 20
Sales |  | 0 | 0
Profit (loss) for the period |  | (48) | (45)
EWP Barbados 1 SRL |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 279,295 | 268,033
Total liabilities |  | 1,031 | 1,581
Sales |  | 2,914 | 688
Profit (loss) for the period |  | 2,368 | 11,221
Gyeonggi Green Energy |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 194,425 | 293,812
Total liabilities |  | 159,078 | 185,043
Sales |  | 13,717 | 96,442
Profit (loss) for the period |  | (73,394) | 25,121
PT. Tanggamus Electric Power |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 228,601 | 216,321
Total liabilities |  | 195,826 | 187,502
Sales |  | 2,256 | 26,832
Profit (loss) for the period |  | (4,529) | 9,338
Gyeongju Wind Power |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 113,745 | 122,303
Total liabilities |  | 75,427 | 83,348
Sales |  | 15,548 | 21,906
Profit (loss) for the period |  | 3,384 | 8,803
KOMIPO America |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 9,424 | 10,092
Total liabilities |  | 593 | 572
Sales |  | 118 | 0
Profit (loss) for the period |  | (1,033) | (885)
KOSEP USA INC. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 1 | 1
Total liabilities |  | 5,147 | 4,857
Sales |  | 0 | 0
Profit (loss) for the period |  | (119) | 4,341
PT. EWP Indonesia |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 34,455 | 7,444
Total liabilities |  | 5 | 14
Sales |  | 0 | 0
Profit (loss) for the period |  | 5,124 | 3,138
KEPCO Netherlands J3 B.V. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 120,006 | 115,978
Total liabilities |  | 74 | 77
Sales |  | 0 | 0
Profit (loss) for the period |  | (79) | (104)
Korea Offshore Wind Power B.V. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 284,495 | 216,114
Total liabilities |  | 117,527 | 36,377
Sales |  | 0 | 0
Profit (loss) for the period |  | (12,768) | (8,473)
Global One Pioneer B.V. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 180 | 162
Total liabilities |  | 73 | 87
Sales |  | 0 | 0
Profit (loss) for the period |  | (86) | (113)
Global Energy Pioneer B.V. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 348 | 325
Total liabilities |  | 80 | 74
Sales |  | 0 | 0
Profit (loss) for the period |  | (90) | (102)
Mira Power Limited |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 356,111 | 277,525
Total liabilities |  | 285,577 | 213,104
Sales |  | 0 | 0
Profit (loss) for the period |  | (971) | (980)
KOSEP Material |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 2,788 | 2,862
Total liabilities |  | 1,186 | 1,249
Sales |  | 3,357 | 3,240
Profit (loss) for the period |  | 22 | 377
Commerce and Industry Energy |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 90,637 | 92,872
Total liabilities |  | 43,985 | 88,009
Sales |  | 32,728 | 27,937
Profit (loss) for the period |  | (7,532) | (6,091)
KEPCO Singapore Holdings Pte. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  |  | 582
Total liabilities |  |  | 9
Sales |  |  | 0
Profit (loss) for the period |  |  | (31)
KEPCO KPS Philippines Corp. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 5,198 | 7,501
Total liabilities |  | 1,341 | 358
Sales |  | 6,246 | 4,815
Profit (loss) for the period |  | 2 | 766
KOSPO Chile SpA |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 134,827 | 139,814
Total liabilities |  | 49,183 | 57,502
Sales |  | 0 | 0
Profit (loss) for the period |  | (456) | 1,016
PT. KOWEPO Sumsel Operation and Maintenance Services |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 135 | 1,313
Total liabilities |  | 262 | 394
Sales |  | 0 | 4,343
Profit (loss) for the period |  | (1,104) | (654)
HeeMang Sunlight Power |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 12,185 | 10,915
Total liabilities |  | 8,545 | 7,626
Sales |  | 643 | 146
Profit (loss) for the period |  | 75 | (192)
Fujeij Wind Power Company |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 218,333 | 217,796
Total liabilities |  | 196,964 | 212,435
Sales |  | 0 | 0
Profit (loss) for the period |  | 5,515 | (1,033)
KOSPO Youngnam Power |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 398,495 | 413,472
Total liabilities |  | 307,226 | 325,589
Sales |  | 318,338 | 369,669
Profit (loss) for the period |  | 3,514 | 8,155
VI Carbon Professional Private Special Asset Investment Trust 1 (formally, HI Carbon Professional Private Special Asset) |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 3,002 | 3,002
Total liabilities |  | 0 | 0
Sales |  | 0 | 0
Profit (loss) for the period |  | 12 | 12
Chitose Solar Power Plant LLC |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 121,457 | 115,505
Total liabilities |  | 106,254 | 105,079
Sales |  | 17,103 | 15,022
Profit (loss) for the period |  | 5,480 | 872
KEPCO Energy Solution |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 308,188 | 304,103
Total liabilities |  | 2,142 | 849
Sales |  | 2,843 | 5,584
Profit (loss) for the period |  | 2,805 | 2,532
Solar School Plant |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 208,730 | 204,282
Total liabilities |  | 3,269 | 1,366
Sales |  | 1,962 | 1,149
Profit (loss) for the period |  | 2,553 | 2,033
KOSPO Power Services Limitada |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 3,244 | 3,045
Total liabilities |  | 1,564 | 596
Sales |  | 10,013 | 9,610
Profit (loss) for the period |  | 452 | 1,132
Energy New Industry Specialized Investment Private Investment Trust |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets | [2] | 100,116 | 66,498
Total liabilities | [2] | 17,359 | 1,014
Sales | [2] | 2,418 | 0
Profit (loss) for the period | [2] | (7,735) | (1,140)
KOEN Bylong |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 0 | 5,544
Total liabilities |  | 39 | 26
Sales |  | 0 | 0
Profit (loss) for the period |  | (14) | (10)
KOMIPO Bylong |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 4 | 5,544
Total liabilities |  | 43 | 26
Sales |  | 0 | 0
Profit (loss) for the period |  | (14) | (25)
KOWEPO Bylong |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 4 | 5,544
Total liabilities |  | 40 | 26
Sales |  | 0 | 0
Profit (loss) for the period |  | (12) | 0
KOSPO Bylong |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 4 | 5,544
Total liabilities |  | 40 | 26
Sales |  | 0 | 0
Profit (loss) for the period |  | (12) | (25)
EWP Bylong |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 4 | 5,544
Total liabilities |  | 40 | 26
Sales |  | 0 | 0
Profit (loss) for the period |  | (12) | (15)
KOWEPO Lao International |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 5,430 | 3,800
Total liabilities |  | 575 | 1,015
Sales |  | 4,308 | 2,899
Profit (loss) for the period |  | 1,584 | 895
KEPCO US |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 17,231 | 16,640
Total liabilities |  | 0 | 0
Sales |  | 0 | 0
Profit (loss) for the period |  | 0 | 6
KEPCO Alamosa |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 33,515 | 32,346
Total liabilities |  | 183 | 79
Sales |  | 145 | 750
Profit (loss) for the period |  | (311) | (688)
KEPCO Solar of Alamosa, LLC (formerly, Cogentrix of Alamosa, LLC) |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 65,468 | 64,223
Total liabilities |  | 50,348 | 48,819
Sales |  | 8,739 | 9,015
Profit (loss) for the period |  | (1,902) | 200
KEPCO-LG CNS Mangilao Holdings |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 27,439 | 25,642
Total liabilities |  | 30,287 | 27,197
Sales |  | 0 | 0
Profit (loss) for the period |  | (1,240) | (1,144)
Mangilao Investment |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 39,972 | 25,641
Total liabilities |  | 0 | 0
Sales |  | 0 | 0
Profit (loss) for the period |  | 0 | 0
KEPCO-LG CNS Mangilao Solar |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 39,373 | 25,406
Total liabilities |  | 11 | 146
Sales |  | 0 | 0
Profit (loss) for the period |  | (524) | (104)
Jeju Hanlim Offshore Wind Co |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 14,328 | 16,557
Total liabilities |  | 558 | 328
Sales |  | 0 | 0
Profit (loss) for the period |  | (2,459) | (925)
PT. Siborpa Eco Power |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 11,574 | 12,363
Total liabilities |  | 71 | 141
Sales |  | 0 | 0
Profit (loss) for the period |  | (1,165) | (1,771)
PT. Korea Energy Indonesia |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 1,592 | 1,183
Total liabilities |  | 121 | 60
Sales |  | 2,462 | 1,459
Profit (loss) for the period |  | 323 | 223
KOLAT SpA |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 31,178 | 38,362
Total liabilities |  | 167 | 474
Sales |  | 656 | 585
Profit (loss) for the period |  | (296) | (186)
KEPCO California, LLC |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 44,074 | 42,171
Total liabilities |  | 936 | 21
Sales |  | 358 | 0
Profit (loss) for the period |  | (513) | (332)
KEPCO Mojave Holdings, LLC |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 103,815 | 103,189
Total liabilities |  | 69,544 | 65,730
Sales |  | 0 | 0
Profit (loss) for the period |  | (4,215) | (3,959)
Incheon Fuel Cell Co., Ltd. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 22,669 | 23,626
Total liabilities |  | 475 | 415
Sales |  | 0 | 0
Profit (loss) for the period |  | (1,010) | (201)
KOEN Service Co., Ltd. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 5,347 | 583
Total liabilities |  | 4,252 | 31
Sales |  | 25,890 | 0
Profit (loss) for the period |  | 543 | (48)
KOMIPO Service Co., Ltd. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 3,327 | 576
Total liabilities |  | 2,622 | 17
Sales |  | 24,556 | 0
Profit (loss) for the period |  | 146 | (41)
KOWEPO Service Co., Ltd. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 4,228 | 750
Total liabilities |  | 3,302 | 227
Sales |  | 23,982 | 0
Profit (loss) for the period |  | 389 | (77)
KOSPO Service Co., Ltd |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 3,493 | 576
Total liabilities |  | 2,788 | 6
Sales |  | 18,741 | 0
Profit (loss) for the period |  | 135 | (30)
EWP Service Co., Ltd. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 4,786 | 667
Total liabilities |  | 4,064 | 97
Sales |  | 20,837 | 0
Profit (loss) for the period |  | 162 | (30)
PT. KOMIPO Energy Indonesia |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 2,647 | 2,236
Total liabilities |  | 196 | 0
Sales |  | 1,392 | 0
Profit (loss) for the period |  | 79 | ₩ 0
KNF Partners Co., Ltd. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 1,378 |
Total liabilities |  | 890 |
Sales |  | 3,383 |
Profit (loss) for the period |  | 187 |
KOSPO USA Inc. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 5,896 |
Total liabilities |  | 127 |
Sales |  | 0 |
Profit (loss) for the period |  | (1,408) |
Nambu USA LLC |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 245 |
Total liabilities |  | 1 |
Sales |  | 0 |
Profit (loss) for the period |  | 245 |
Tamra Offshore Wind Power Co., Ltd. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 156,708 |
Total liabilities |  | 121,724 |
Sales |  | 19,670 |
Profit (loss) for the period |  | 1,154 |
KEPCO MCS Co., Ltd. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 26,510 |
Total liabilities |  | 22,151 |
Sales |  | 129,393 |
Profit (loss) for the period |  | 3,408 |
KEPCO FMS Co., Ltd. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 11,336 |
Total liabilities |  | 10,638 |
Sales |  | 37,627 |
Profit (loss) for the period |  | 198 |
Firstkeepers Co., Ltd. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 1,552 |
Total liabilities |  | 2,800 |
Sales |  | 121 |
Profit (loss) for the period |  | (2,239) |
Secutec Co., Ltd. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 322 |
Total liabilities |  | 229 |
Sales |  | 0 |
Profit (loss) for the period |  | (597) |
SE Green Energy Co., Ltd. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 132,727 |
Total liabilities |  | 105,619 |
Sales |  | 0 |
Profit (loss) for the period |  | 816 |
KEPCO Mangilao America LLC |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 0 |
Total liabilities |  | 0 |
Sales |  | 0 |
Profit (loss) for the period |  | 0 |
Mangilao Intermediate Holdings LLC |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 13,220 |
Total liabilities |  | 12,774 |
Sales |  | 0 |
Profit (loss) for the period |  | (66) |
KEPCO CSC Co., Ltd. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 837 |
Total liabilities |  | 51 |
Sales |  | 0 |
Profit (loss) for the period |  | (14) |
KOAK Power Limited |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 15,930 |
Total liabilities |  | 0 |
Sales |  | 0 |
Profit (loss) for the period |  | 0 |
KOMIPO Europe B.V. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 7,362 |
Total liabilities |  | 0 |
Sales |  | 0 |
Profit (loss) for the period |  | (286) |
Haenanum Energy Fund |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 28,101 |
Total liabilities |  | 1 |
Sales |  | 0 |
Profit (loss) for the period |  | 1 |
Paju Ecoenergy Co., Ltd. |  |  |
Disclosure - Summary of financial information of consolidated subsidiaries [Line Items] |  |  |
Total assets |  | 53,839 |
Total liabilities |  | 0 |
Sales |  | 0 |
Profit (loss) for the period |  | ₩ 0 |
[1] | Financial information of EWP America Inc. includes that of six other subsidiaries, EWP Renewable Corporation, DG Fairhaven Power, LLC, DG Whitefield, LLC, Springfield Power, LLC, California Power Holdings, LLC, and EWPRC Biomass Holdings, LLC.
[2] | Financial information of Energy New Industry Specialized Investment Private Investment Trust includes that of three other subsidiaries, BSK E-New Industry Fund VII, e-New Industry LB Fund 1 and Songhyun e-New Industry Fund.

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