20-F 1 d75992d20f.htm FORM 20-F Form 20-F
Table of Contents
0000887225falseFYM5KRKRThe Company used initial cost as their fair value because there was not enough information to determine fair value, and the range of the estimated fair value is wide.The maturity of mid- to long-term CPs corresponds to contract period of commercial paper repurchase agreements.According to the shareholders’ agreement, the parties have joint control over all decisions related to finance and operation. Accordingly, the entity is classified as joint ventures.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.The effective percentage of ownership is more than 50%. However, decisions in relevant activities must be agreed by all ownership parties. Accordingly, the entity is classified as a joint venture.The effective percentage of ownership is less than 50%. However, the entity is classified as a joint venture, because all consent was required to make decisions on related activities.Korea Electric Vehicle Charging Service is not a related party of the Company as of December 31, 2023 as the sale of shares was completed for the year ended December 31, 2022.As of December 31, 2023, the annual reporting period of all subsidiaries ends on December 31, except for Mira Power Limited, Columboola Solar Farm Hold Co Pty., Ltd., Columboola Solar Farm Nominees Pty., Ltd., Columboola Solar Farm Op Trust and Columboola Solar Farm Fin Co Pty., Ltd.Korea Development Bank’s interest of ₩1,056,176 million is included.Bondholders may not require prepayment in any case, and the Company has a call option to repay all of these bonds on or after 12 years from the date of issuance of the bonds, or on each interest payment date henceforth. In addition, there is a step-up clause from the date of the initial call option exercise. Although these instruments have contractual maturity dates, the contractual agreements allow these subsidiaries to indefinitely extend the maturity dates and defer the payment of interest without modification to the other terms of the instruments. When the Company decides not to pay dividends on common shares, they are not required to pay interest on the hybrid bonds.This represents the total guarantee amounts associated with the financial guarantee contracts. Financial guarantee liabilities which are recognized as of December 31, 2022 and 2023 are W67,240 and ₩49,992 million, respectively.Depending on the counterparty exercising the right, the contract may be early settled on the same date every year from June 15, 2023.Included in trade and other receivables, net, in the consolidated statements of financial position. The balance of trade receivables from construction contracts are ₩85,757 million and ₩101,180 million, as of December 31, 2022 and 2023, respectively. Included in non-financial liabilities as advance received in the consolidated statements of financial position. The revenue recognized on December 31, 2023 from the amounts included in contract liabilities at the end of the prior year is ₩117,311 million.The Company guarantees to provide supplemental funding for business with respect to excessive business expenses or insufficient repayment of borrowings.This is an L/C opening guarantee for the performance of each contract in relation to the power sales contract and gas supply contract of South Jamaica Power Company Limited, a joint venture of the Company.This is based on the amount of loan commitment limit.As of December 31, 2023, the Company has established guarantees for pledge for transfer of rights of long-term borrowings, pledge for insurance claims, pledge for shares, etc.The Company recorded the fair value of derivatives in accordance with the shareholders’ agreement of its associate, Hyundai Green Power Co., Ltd., as other derivatives. In addition, the fair value of the derivatives regarding the power sales agreement of its subsidiary, Elara Energy Project, LLC, were recorded as other derivatives.The Company recorded the fair value of derivatives regarding the Power Purchase Agreement (“PPA”) of its subsidiary Columboola Solar Farm Hold Co Pty., Ltd. as other derivatives.As of December 31, 2023, the commitment amounts include the Shin-Hanul Unit #1, construction of which has completed during the year ended December 31, 2022. In addition, as of December 31, 2023, Shin-hanul Unit #2 is in commissioning.Bankruptcy was declared during the year ended December 31, 2023. The Company cannot hold significant influence due to the appointment of a bankruptcy trustee, so the Company was reclassified from an associate to financial assets at fair value through other comprehensive income.The percentage of ownership shown above is after considering the treasury stocks and others.The effective percentage of ownership is less than 20%. However, the Company can exercise significant influence by virtue of its contractual right to appoint directors to the board of directors of the entity, and by strict decision criteria of the Company’s financial and operating policy of the board of directors.The effective percentage of ownership is less than 20%. However, the entity is classified as an associate because the Company exercises significant influence over the entity.The effective percentage of ownership is 100%. However, the Government regulates the Company’s ability to make operating and financial decisions over the entity, as the Government requires maintaining arms-length transactions between KPX and the Company’s other subsidiaries. Accordingly, the entity is not classified as a consolidated subsidiary. The Company can exercise significant influence by virtue of right to nominate directors to the board of directors of the entity.The Company is planning to sell its investments in YTN Co., Ltd. based on the resolution of the Board of Directors on November 23, 2022, but investments in YTN Co., Ltd. are not classified as assets held-for-sale as the Company hasn't started the active selling procedures as of December 31, 2022.After additional acquisition of the shares, the effective percentage of ownership is more than 50%. However, the Company does not hold control over relevant business while it exercises significant influence by participating in the board of directors by the shareholders’ agreement. Accordingly, the entity is classified as an associate.The effective percentage of ownership is less than 20%. However, the Company can exercise significant influence by virtue of its contractual right to appoint one out of four members of the steering committee of the entity. Moreover, the Company has significant financial transactions, which can affect its significant influence on the entity.The effective percentage of ownership decreased due to the disproportionate paid-in capital increase during the year ended December 31, 2022. The effective percentage of ownership is more than 50% but the Company does not hold control over relevant business while it exercises significant influence by participating in the Investment Decision Committee. Accordingly, the entity is classified as an associate.The effective percentage of ownership is 14.29% due to the acquisition of treasury stocks. The effective percentage of ownership is less than 20%. However, the Company exercises significant influence over the decisions related to finance and operation by virtue of right to nominate directors to the board of directors of the entity.The effective percentage of ownership decreased due to the disproportionate paid-in capital increase, and the effective percentage of ownership is less than 20%. However, the Company exercises significant influence over all decisions related to finance and operation.The effective percentage of ownership is less than 20%. However, the entity is classified as an associate because the Company exercises significant influence over the decisions related to finance and operation.The Company is planning to sell its investment in SPC Power Corporation, KEPCO SPC Power Corporation, and KV Holdings, Inc. The timing of and proceeds from such sales transaction is not specified as of December 31, 2022.The effective percentage of ownership is more than 50%. However, according to the shareholders’ agreement, all critical financial and operating decisions must be agreed to by all ownership parties and the Company can exercise same voting rights as other shareholders at the board of directors. Accordingly, the entities are classified as joint ventures.According to the Boim Combined Heat and Power Generation Co., Ltd. (formerly, Dayone Energy Co., Ltd.) Investment Agreement signed in March 2011, the Company has a commitment to guarantee principal and certain returns on shares of Boim Combined Heat and Power Generation Co., Ltd. (formerly, Dayone Energy Co., Ltd.). held by NH Power 2nd Co., Ltd. and the National Agricultural Cooperative Federation. Since NH Power 2nd Co., Ltd. and the National Agricultural Cooperative Federation have put option regarding their share of the entity, the Company was deemed to have acquired an additional 15.64% stake. As a result, the effective percentage of ownership is 46.3% in the current and prior period. In accordance with shareholders’ agreement signed during the current period, the Company has joint control with other investors in making important financial and operation decisions, so it has been reclassified from an associate to a joint venture.The effective percentage of ownership is less than 20%. However, according to the shareholders' agreement, decisions related principal operation must be agreed by all ownership parties. Accordingly, the Company can exercise significant influence.The effective percentage of ownership is less than 20%. However, decisions in relevant activities must be agreed by ownership parties. Accordingly, the entity is classified as joint ventures.After additional acquisition of the shares, the effective percentage of ownership is more than 50%. However, decisions in relevant activities must be agreed by all members of the board of directors. Accordingly, the entity is classified as a joint venture.Taebaek Wind Power Co., Ltd. was changed from an associate to a joint venture for the year ended December 31, 2023.Applicable tax rates are 27.5%, 26.5% and 25.64% as of December 31, 2021, 2022 and 2023, respectively.The effective tax rate for the year ended December 31, 2021, 2022 and 2023 is not calculated due to income tax benefit.The effective percentage of ownership increased due to the disproportionate capital reduction of financial investors during the year ended December 31, 2022.The Company is planning to sell its investment in SPC Power Corporation, KEPCO SPC Power Corporation, and KV Holdings, Inc. The timing of and proceeds from such sales transaction is not specified as of December 31, 2023.The nominal percentage of ownership is 75.29% and the effective percentage of ownership is 56.91%, as the Company has an obligation to provide excessive dividend income to Gunsan City when a certain rate of return defined in the shareholders’ agreement is met.Changjuk Wind Power Co., Ltd. was reclassified from an associate to a subsidiary for the year ended December 31, 2022, and the amount is before reclassification to a subsidiary.KEPCO-Uhde Inc. is not a related party of the Company as of December 31, 2023 as the liquidation process was completed for the year ended December 31, 2023.Namjeongsusang Solar Power Operation Co., Ltd. is not a related party of the Company as of December 31, 2023 as the sale of shares was completed for the year ended December 31, 2023.Busan Green Energy Co., Ltd. was declared bankrupt for the year ended December 31, 2023 and was excluded from an associate due to the appointment of a bankruptcy trustee.The Company has estimated the fair value of Set Holding by using the discounted cash flow method and has recognized the difference between its fair value and book value as gain or loss on valuation of financial assets at FVOCI in other comprehensive income or loss during the year ended December 31, 2022.Reclassified from a joint venture to a subsidiary during the year ended December 31, 2022. Transactions are made before the reclassification.Although the nominal percentage of ownership is 29%, the effective percentage of ownership is 54.24%, considering the interest of financial investors as a liability component.To eliminate or reduce an accounting mismatch, the Company may elect to recognize the amount of change in fair value in profit or loss.On initial recognition of an equity investment that is not held for trading, the Company may irrevocably elect to present subsequent changes in the investment’s fair value in OCI.The Company recognized an impairment loss on all of the equity securities of Naepo Green Energy Co., Ltd. before the prior year, and the acquisition cost of the securities provided as collateral is ₩29,200 million.The Company has entered into an agreement to settle and pay the estimated loss amount in case damages occur in relation to the fulfillment of the mandatory supply volume according to the mandatory supply agreement for coal ash.Samcheok Eco Materials Co., Ltd., an associate of the Company has issued the hybrid bonds. If the bonds are not repaid by December 8, 2026, the parent company and shareholders except the parent company must purchase the bonds from the acquirer. As of December 31, 2023, derivative liabilities of W18,752,903,155 were recognized in relation to this obligation.1.84% of the contract paying interest rate is applied for five years from the date of issuance, and 3M CMT+0.35% is applied thereafter.1.87% of the contract paying interest rate is applied for five years from the date of issuance, and 3M CMT+0.35% is applied thereafter.The effective percentage of ownership decreased due to the disproportionate paid-in capital increase during the year ended December 31, 2023. The effective percentage of ownership is more than 50% but the Company does not hold control over relevant business while it exercises significant influence by participating in the Investment Decision Committee. Accordingly, the entity is classified as an associate.The effective percentage of ownership is more than 50% but the Company does not hold control over relevant business while it exercises significant influence by participating in the Investment Decision Committee. Accordingly, the entity is classified as an associate.Although the Company’s effective percentage of ownership is less than 20%, the Company can exercise significant influence on the entity through its contractual right to appoint one director to the entity’s board of directors.The effective percentage of ownership changed due to the disproportionate capital reduction of financial investors during the year ended December 31, 2023.Although the nominal percentage of ownership is 2.35%, the effective percentage of ownership is 25.54%, considering redeemable convertible preferred stock as a liability component. The redeemable convertible preferred stock has been repaid in the current period.the Company is planning to sell its investments in YTN Co., Ltd. based on the resolution of the Board of Directors on November 23, 2022, but investments in YTN Co., Ltd. are not classified as assets held-for-sale as the Company hasn’t started the active selling procedures as of December 31, 2023.The effective percentage of ownership is more than 50%. However, by the shareholders’ agreement, the Company does not hold control over relevant business while it exercises significant influence by participating in the Investment Decision committee. Accordingly, the entity is classified as an associate.Although the Company’s effective percentage of ownership is less than 20%, the entity has been classified as an associate as the Company has significant influence on the entity considering the fact that ordinary resolutions passed at the shareholders’ meeting require the majority decision and the Company has the right to elect the entity’s directors.The effective percentage of ownership is more than 50% but the Company does not hold control over the entity according to the shareholders’ agreement. Accordingly, the entity is classified as an associate.The effective percentage of ownership decreased due to the disproportionate paid-in capital increase.The Company sold all of its shares in YTN Co., Ltd. (21.43 %) on February 15, 2024 at the price of W221,490 million as the Korea Communications Commission approved to sell the Company’s shares in entirety on February 7, 2024 (see Note 51).An indicator of impairment has been identified for the Company’s investment in Korea Gas Corporation (“KOGAS”) for the years ended December 31, 2022 and 2023 as management determined that the carrying amount of the investment in KOGAS at ₩2,085,296 million and ₩1,970,642 million respectively were significantly higher than its fair value. Accordingly, management has assessed the recoverable amount of the investment by estimating the Company’s share of the present value of the estimated future cash flows expected to be generated by KOGAS. The carrying amount of KOGAS as at December 31, 2022 and 2023 are supported by the recoverable amount determination and as such, no impairment has been recognized for the years ended December 31, 2022 and 2023.For the years ended December 31, 2021, 2022 and 2023, the net loss on valuation of derivatives applying cash flow hedge accounting of ₩15,778 million, ₩24,415 million and ₩3,654 million, net of tax, are included in other comprehensive loss, respectively.As of December 31, 2023, the Company has entered into a credit extension agreement for derivatives transactions with Nonghyup Bank, Hana Bank, and Woori Bank as ancillary to currency swap transactions.The maturities cannot be presently determined.Maximum exposure associated with the financial guarantee contracts is the maximum amounts of the obligation.Equity investments held by the Company are excluded.The Company recognized an impairment loss on all of the equity securities of Generation Co., Ltd. (formerly, Dayone Energy Co., Ltd.) before the prior year, and the acquisition cost of the securities provided as collateral is ₩47,067 million.Pursuant to the guarantee agreement, the Company recognized other provisions of ₩8,418 million as the possibility of economic benefit outflow to fulfill the obligation was deemed probable and the amount could be reasonably estimated.Excludes lease liabilities.The Company has disposed of shares of Korea Electric Vehicle Charging Service during the year ended December 31, 2022, and it is not a related party to the Company as of December 31, 2022.Changes such as additional allowances or cancellation of allowances are reflected.The effective percentage of ownership is 37%, considering potential common stock.The effective percentage of ownership is more than 50%. However, decisions in relevant activities must be agreed by all members of the board of directors. Accordingly, the entity is classified as a joint venture.Due to the changes in the agreement, the Company lost its control over the entity. Accordingly, the entity is reclassified to a joint venture from a subsidiary. Although the effective percentage of ownership is more than 50%, decisions in relevant activities must be agreed by all members of the board of directors.Including translation effect of foreign currency lease liabilities and others.The Company has estimated the fair value of Set Holding by using the discounted cash flow method and has recognized the difference between its fair value and book value as gain or loss on valuation of financial assets at FVOCI in other comprehensive income or loss during the year ended December 31, 2023.The percentage of effective ownership is more than 20%. However, according to the shareholders’ agreement, decisions related principal operation must be agreed by all ownership parties. Accordingly, the entity is classified as a joint venture.The investee declared bankruptcy during the year ended December 31, 2023. The Company has no capacity to exercise significant influence on the investee due to the receivership of the investee by a trustee in bankruptcy, so the investment was reclassified as financial assets measured at fair value through other comprehensive income.The credit limits of guarantees to RE Holiday Holdings LLC include the credit limits of guarantees to their subsidiariesXe-Pian Xe-Namnoy Power Co., Ltd., an associate of the Company, has entered a contract to pay an incentive type of impounding bonus to SK Eco Plant Co., Ltd. when the Xe-Pian Xe-Na-mnoy Dam is completed. If Xe-Pian Xe-Namnoy Power Co., Ltd. fails to pay SK Eco Plant Co., Ltd., the Company guarantees the payment, and the amount is USD 5,000,000.The Company provided a payment guarantee to Jordan Tafila wind power project for opening L/C for Debt Service Reserve Account (DSRA).The Company provided a payment guarantee to Chile Kelar project for opening L/C for Debt Service Reserve Account (DSRA), and others.In relation to the agreement to purchase hybrid securities issued by Samcheok Eco Materials Co., Ltd., an associate of the Company, the Company has recognized as other derivative liabilities the fair value of ₩18,752 million for its performance obligation to the underwriter of the bonds. In addition, the Company has granted stock option to Chester Solar IV SpA, a joint venture of the Company, and 4 other third party investors, and recorded the related fair value of ₩5,986 million (prior year : ₩6,197 million) as other derivative liabilities.The effective percentage of ownership is 34.01% considering the conversion of redeemable convertible preferred stock into ordinary stock.Although the nominal percentage of ownership is 2.35%, the effective percentage of ownership is 25.54%, considering redeemable convertible preferred stock as a liability component.During the year ended December 31, 2023, the entity was reclassified from an associate to financial assets measured at fair value through other comprehensive income.The entire amount has been set as bad debt.According to the REC’s Innovation Co., Ltd. (formerly, Wang San Engineering. Co,. Ltd.). Investment Agreement signed in March 2011, the Company has a commitment to guarantee principal and certain returns on shares of REC’s Innovation Co., Ltd. (formerly, Wang San Engineering. 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.Although the Company’s effective percentage of ownership is more than 50%, the entity is reclassified as a joint venture since the entity’s material financial and operational decisions require unanimous agreement of members in the board of directors due to the shareholders’ agreement concluded during the year ended December 31, 2023.Although the Company’s effective percentage of ownership is more than 50%, the entity is reclassified as a joint venture considering the minimum number of the entity’s board of directors’ members required to agree for making decision on material financial and operational policies, as the joint shareholders’ agreement changed during the year ended December 31, 2023.Although the Company’s effective percentage of ownership is less than 20%, the entity is reclassified as a joint venture considering the Company can exercise significant influence on the entity due to the Company’s contractual right to appoint a director to the entity’s board of directors and the minimum number of the entity’s board of directors members required to agree for making decision on material financial and operational policies in accordance with the joint shareholders’ agreement .Although the Company’s effective percentage of ownership is more than 50%, the entity is classified as a joint venture since the entity’s material financial and operational decisions require unanimous agreement of members in the board of directors.Although the investment has not yet been paid, commitment to pay 35% of investment in the future has been made.Gross amount of finance lease receivables is the net lease investment by deducting unearned finance income of ₩114,118 million.The board of directors of KEPCO Engineering & Construction Company, Inc., a subsidiary of the Company, made a resolution to sell its old office building in Yongin-si, Gyeonggi-do, and reclassified the buildings, structures, and land as assets held-for-sale expecting its carrying amount would be recovered through a sale transaction. In accordance with the resolution of the Board of Directors on April 1, 2022, a sales contract for the assets scheduled for sale was entered into on April 13, 2022, and the related down payment and interim payment of ₩52,666 million were recorded as long-term advance received.The board of directors of Korea Electric Power Corporation, the controlling company, made a resolution to sell the Uijeongbu substation, and reclassified the buildings and land as assets held-for-sale expecting its carrying amount would be recovered through a sale transaction during the year ended December 31, 2022.‘Others’ consist of various financial assets managed by external asset management companies.The shares were acquired through a debt-to-equity conversion during the year ended December 31, 2023, in accordance with the corporate rehabilitation procedures of BDI Co., Ltd. Since the Company has no capacity to exercise significant influence until the rehabilitation procedures are complete, the Company has classified the investment as financial assets measured at fair value through other comprehensive income.This includes a guarantee related to L/C for debt repayment allowance provided to DE Energia SpA, a joint venture of the Company.The credit limits of guarantees to KAS INVESTMENT I LLC, KAS INVESTMENT II LLC include the credit limits of guarantees to their subsidiaries.Gross amount of finance lease receivables is the net lease investment by deducting unearned finance income of ₩1,024,927 million.Gross amount of finance lease receivables is the net lease investment by deducting unearned finance income of ₩114,347 million.Gross amount of finance lease receivables is the net lease investment by deducting unearned finance income of ₩943,316 million.Including the present value of unguaranteed residual value amounting to ₩22,910 million and ₩25,521 million, as of December 31, 2022 and 2023, respectively.The carrying amount of mining rights is nil, because KEPCO Australia Pty., Ltd. and KEPCO Bylong Australia Pty., Ltd. had recognized impairment losses in full.‘Others’ include MMT, etc.The amounts exclude financial assets and deferred tax assets.The common stocks of Dongducheon Dream Power Co., Ltd. held by the Company were pledged as collateral.Middle East and other Asian countries make up the majority of overseas revenue and non-current assets. Since the overseas revenue or non-current assets attributable to particular countries are not material, they are not disclosed individually.The effect on the shareholders’ equity excluding the impact of income taxes.The KEPCO Act requires KEPCO to appropriate a legal reserve equal to at least 20 percent of net income for each accounting period until the reserve equals 50 percent of KEPCO’s common stock. The legal reserve is not available for cash dividends; however, this reserve may be credited to paid-in capital or offset against accumulated deficit by the resolution of the shareholders.The reserve for research and human development is appropriated by KEPCO to use as qualified tax credits to reduce corporate tax liabilities. The reserve is available for cash dividends for a certain period as defined by the Restriction of Special Taxation Act of Korea.The Company, together with other shareholders, has provided a guarantee for the project financing of Pulau Indah Power Plant Sdn. Bhd., by establishing the right of pledge on the shares of Pulau Indah Power Plant Sdn. Bhd.Including a power purchase agreement (“PPA”) with CGN Yulchon Generation Co., Ltd.The effect on the equity excluding the impact of income taxes. 0000887225 2021-01-01 2021-12-31 0000887225 2022-01-01 2022-12-31 0000887225 2023-01-01 2023-12-31 0000887225 2022-12-31 0000887225 2023-12-31 0000887225 2021-12-31 0000887225 2020-12-31 0000887225 ifrs-full:OrdinarySharesMember 2022-12-31 0000887225 ifrs-full:CurrencyRiskMember 2022-12-31 0000887225 kep:HaenanumEnergyFundMember 2022-12-31 0000887225 kep:KOMIPOEuropeBVMember 2022-12-31 0000887225 kep:EnergyInnovationFundIMember 2022-12-31 0000887225 kep:KOMIPOVanphongPowerServiceLLCMember 2022-12-31 0000887225 kep:YeongYangApollonPhotovoltaicCo.Ltd.Member 2022-12-31 0000887225 kep:KHNPUSALLCMember 2022-12-31 0000887225 kep:OgiriSolarPowerCoLtdMember 2022-12-31 0000887225 kep:MohaSolarCoLtdMember 2022-12-31 0000887225 kep:KEPCOUSMember 2022-12-31 0000887225 kep:KOWEPOLaoInternationalMember 2022-12-31 0000887225 kep:EWPBylongMember 2022-12-31 0000887225 kep:FirstkeepersMember 2022-12-31 0000887225 kep:KSOLARSHINANCoLtdMember 2022-12-31 0000887225 kep:KhnpChileSpaMember 2022-12-31 0000887225 kep:KEPCOLGCNSMangilaoHoldingsMember 2022-12-31 0000887225 kep:PTKoreaEnergyIndonesiaMember 2022-12-31 0000887225 kep:PTSiborpaEcoPowerMember 2022-12-31 0000887225 kep:JejuHanlimOffshoreWindCoMember 2022-12-31 0000887225 kep:YeongYangHorusPhotovoltaicCoLtdMember 2022-12-31 0000887225 kep:YeongYangSolarManagementCoLtdMember 2022-12-31 0000887225 kep:YeongYangInnovationCoLtdMember 2022-12-31 0000887225 kep:SolarvaderCoLtdMember 2022-12-31 0000887225 kep:YeongYangCorporationCo.Ltd.Member 2022-12-31 0000887225 kep:KEPCOFMSMember 2022-12-31 0000887225 kep:KOSPOServiceCo.LtdMember 2022-12-31 0000887225 kep:KOWEPOServiceCo.Ltd.Member 2022-12-31 0000887225 kep:PT.KOMIPOEnergyIndonesiaMember 2022-12-31 0000887225 kep:MangilaoIntermediateHoldingsMember 2022-12-31 0000887225 kep:SecutecMember 2022-12-31 0000887225 kep:KEPCOMCSMember 2022-12-31 0000887225 kep:KEPCOECServiceCoLtdMember 2022-12-31 0000887225 kep:KPSPartnersCoLtdMember 2022-12-31 0000887225 kep:GuamUkuduPowerLLCMember 2022-12-31 0000887225 kep:PajuEcoenergyMember 2022-12-31 0000887225 kep:MiraPowerLimitedMember 2022-12-31 0000887225 kep:KOSEPMaterialMember 2022-12-31 0000887225 kep:CommerceandIndustryEnergyMember 2022-12-31 0000887225 kep:KOSPOChileSpAMember 2022-12-31 0000887225 kep:KEPCOEnergySolutionMember 2022-12-31 0000887225 kep:KOMIPOBylongMember 2022-12-31 0000887225 kep:ChitoseSolarPowerPlantMember 2022-12-31 0000887225 kep:KOSPOPowerServicesLimitadaMember 2022-12-31 0000887225 kep:KOENBylongMember 2022-12-31 0000887225 kep:KOSPOBylongMember 2022-12-31 0000887225 kep:HeeMangSunlightPowerMember 2022-12-31 0000887225 kep:KEPCOKPSPhilippinesCorpMember 2022-12-31 0000887225 kep:PTKOWEPOSumselOperationandMaintenanceServicesMember 2022-12-31 0000887225 kep:KOSPOYoungnamPowerMember 2022-12-31 0000887225 kep:FujeijWindPowerCompanyMember 2022-12-31 0000887225 kep:EnergyNewIndustrySpecializedInvestmentPrivateInvestmentTrustMember 2022-12-31 0000887225 kep:KEPCOPhilippinesHoldingsMember 2022-12-31 0000887225 kep:KEPCOInternationalHongKongMember 2022-12-31 0000887225 kep:KEPCOIlijanCorporationMember 2022-12-31 0000887225 kep:KoreaSouthernPowerMember 2022-12-31 0000887225 kep:KEPCOPlantServiceEngineeringMember 2022-12-31 0000887225 kep:KoreaEastWestPowerMember 2022-12-31 0000887225 kep:KEPCOGansuInternationalMember 2022-12-31 0000887225 kep:KEPCOKDNMember 2022-12-31 0000887225 kep:KEPCOLebanonSARLMember 2022-12-31 0000887225 kep:KEPCOPhilippinesCorporationMember 2022-12-31 0000887225 kep:KEPCOInternationalPhilippinesMember 2022-12-31 0000887225 kep:KEPCONuclearFuelMember 2022-12-31 0000887225 kep:KoreaWesternPowerMember 2022-12-31 0000887225 kep:KEPCOEngineeringConstructionCompanyMember 2022-12-31 0000887225 kep:KoreaMidlandPowerMember 2022-12-31 0000887225 kep:KoreaSoutheastPowerMember 2022-12-31 0000887225 kep:KoreaHydroNuclearPowerMember 2022-12-31 0000887225 kep:KaPowerLimitedMember 2022-12-31 0000887225 kep:WesternPowerChanggiSolarCoLtdMember 2022-12-31 0000887225 kep:YeongdeokSunriseWindPowerCo.Ltd.Member 2022-12-31 0000887225 kep:KowepoEuropeB.v.Member 2022-12-31 0000887225 kep:KhnpSpainS.l.Member 2022-12-31 0000887225 kep:KepcoForMaintenanceCompanyMember 2022-12-31 0000887225 kep:KospoTrumbullLlcMember 2022-12-31 0000887225 kep:LsgHydroPowerLimitedMember 2022-12-31 0000887225 kep:EwpAustraliaPty.LtdMember 2022-12-31 0000887225 kep:ColumboolaSolarFarmHoldCoPty.Ltd.Member 2022-12-31 0000887225 kep:DigitalInnovationGrowthFundMember 2022-12-31 0000887225 kep:JWindFirstLlcMember 2022-12-31 0000887225 kep:EWPAmericaMember 2022-12-31 0000887225 kep:KOWEPOAustraliaMember 2022-12-31 0000887225 kep:PTKOMIPOPembangkitanJawaBaliMember 2022-12-31 0000887225 kep:KSTElectricPowerCompanyMember 2022-12-31 0000887225 kep:KEPCOBylongAustraliaMember 2022-12-31 0000887225 kep:GyeonggiGreenEnergyMember 2022-12-31 0000887225 kep:KEPCONetherlandsS3BVMember 2022-12-31 0000887225 kep:KEPCOHoldingsdeMexicoMember 2022-12-31 0000887225 kep:KEPCOAustraliaMember 2022-12-31 0000887225 kep:GyeongjuWindPowerMember 2022-12-31 0000887225 kep:KOSPOAustraliaMember 2022-12-31 0000887225 kep:KOMIPOAustraliaMember 2022-12-31 0000887225 kep:KEPCONeimengguInternationalMember 2022-12-31 0000887225 kep:EWPBarbados1SRLMember 2022-12-31 0000887225 kep:KEPCOMiddleEastHoldingCompanyMember 2022-12-31 0000887225 kep:KOWEPOInternationalCorporationMember 2022-12-31 0000887225 kep:PTTanggamusElectricPowerMember 2022-12-31 0000887225 kep:KOSEPAustraliaMember 2022-12-31 0000887225 kep:KoreaWaterburyUraniumLimitedPartnershipMember 2022-12-31 0000887225 kep:KEPCOEnergyServiceCompanyMember 2022-12-31 0000887225 kep:QatranaElectricPowerCompanyMember 2022-12-31 0000887225 kep:KNFCanadaEnergyLimitedMember 2022-12-31 0000887225 kep:KEPCOShanxiInternationalMember 2022-12-31 0000887225 kep:KEPCONetherlandsBVMember 2022-12-31 0000887225 kep:KOMIPOGlobalPteMember 2022-12-31 0000887225 kep:KHNPCanadaEnergyMember 2022-12-31 0000887225 kep:PTCirebonPowerServiceMember 2022-12-31 0000887225 kep:KOSPOJordanMember 2022-12-31 0000887225 kep:KEPCONetherlandsJ3BVMember 2022-12-31 0000887225 kep:KOMIPOAmericaMember 2022-12-31 0000887225 kep:PTEWPIndonesiaMember 2022-12-31 0000887225 kep:GlobalOnePioneerBVMember 2022-12-31 0000887225 kep:KoreaOffshoreWindPowerMember 2022-12-31 0000887225 kep:GlobalEnergyPioneerBVMember 2022-12-31 0000887225 kep:KOWEPOBylongMember 2022-12-31 0000887225 kep:SolarSchoolPlantMember 2022-12-31 0000887225 kep:SEGreenEnergyMember 2022-12-31 0000887225 kep:KEPCOCSCMember 2022-12-31 0000887225 kep:KOLATSpAMember 2022-12-31 0000887225 kep:KEPCOCaliforniaLLCMember 2022-12-31 0000887225 kep:KEPCOMojaveHoldingsLLCMember 2022-12-31 0000887225 kep:MangilaoInvestmentMember 2022-12-31 0000887225 kep:KEPCOLGCNSMangilaoSolarMember 2022-12-31 0000887225 kep:NambuUSAMember 2022-12-31 0000887225 kep:TamraOffshoreWindPowerMember 2022-12-31 0000887225 kep:KOAKPowerLimitedMember 2022-12-31 0000887225 kep:IncheonFuelCellCo.Ltd.Member 2022-12-31 0000887225 kep:KOENServiceCo.Ltd.Member 2022-12-31 0000887225 kep:KOMIPOServiceCo.Ltd.Member 2022-12-31 0000887225 kep:EWPServiceCo.Ltd.Member 2022-12-31 0000887225 kep:KNFPartnersMember 2022-12-31 0000887225 kep:KOSPOUSAMember 2022-12-31 0000887225 kep:KepcoHoldingCompanyMember 2022-12-31 0000887225 kep:KepcoForPowerCompanyMember 2022-12-31 0000887225 kep:KomipoIberianSolarGroupS.l.u.Member 2022-12-31 0000887225 kep:KoenBioCo.Ltd.Member 2022-12-31 0000887225 kep:JeongamWindPowerMember 2022-12-31 0000887225 kep:ChangjukWindPowerMember 2022-12-31 0000887225 ifrs-full:GrossCarryingAmountMember 2022-12-31 0000887225 ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember ifrs-full:GrossCarryingAmountMember 2022-12-31 0000887225 ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember ifrs-full:GrossCarryingAmountMember 2022-12-31 0000887225 ifrs-full:NotLaterThanOneYearMember ifrs-full:GrossCarryingAmountMember 2022-12-31 0000887225 ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember ifrs-full:GrossCarryingAmountMember 2022-12-31 0000887225 ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember ifrs-full:GrossCarryingAmountMember 2022-12-31 0000887225 ifrs-full:LaterThanFiveYearsMember ifrs-full:GrossCarryingAmountMember 2022-12-31 0000887225 kep:DerivativeAssetsApplyingHedgeAccountingCategoryMember 2022-12-31 0000887225 ifrs-full:FinancialAssetsAtAmortisedCostCategoryMember ifrs-full:FinancialAssetsAtAmortisedCostMember 2022-12-31 0000887225 ifrs-full:FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:FinancialAssetsAtFairValueMember 2022-12-31 0000887225 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember ifrs-full:FinancialAssetsAtFairValueMember 2022-12-31 0000887225 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember 2022-12-31 0000887225 ifrs-full:FinancialLiabilitiesAtAmortisedCostCategoryMember 2022-12-31 0000887225 ifrs-full:HedgingInstrumentsMember 2022-12-31 0000887225 kep:OtherLoansMember 2022-12-31 0000887225 kep:LoansHousingMember 2022-12-31 0000887225 kep:LoansTuitionMember 2022-12-31 0000887225 kep:ValuationAllowanceAdjustmentsMember 2022-12-31 0000887225 ifrs-full:GrossCarryingAmountMember 2022-12-31 0000887225 ifrs-full:LaterThanFiveYearsMember 2022-12-31 0000887225 ifrs-full:LaterThanOneYearAndNotLaterThanFiveYearsMember 2022-12-31 0000887225 ifrs-full:NotLaterThanOneYearMember 2022-12-31 0000887225 ifrs-full:CorporateLoansMember ifrs-full:GrossCarryingAmountMember 2022-12-31 0000887225 kep:ShortTermFinancialInstrumentsMember 2022-12-31 0000887225 ifrs-full:CorporateLoansMember 2022-12-31 0000887225 kep:OtherFinancialAssetsMember 2022-12-31 0000887225 ifrs-full:CorporateLoansMember kep:PresentValueDiscountMember 2022-12-31 0000887225 ifrs-full:CorporateLoansMember ifrs-full:AccumulatedImpairmentMember 2022-12-31 0000887225 ifrs-full:ComputerSoftwareMember kep:OracleLicenseForSdisIntegratedDbMember 2022-12-31 0000887225 ifrs-full:MiningRightsMember kep:MiningRightOfBylongMineMember 2022-12-31 0000887225 kep:UsageRightsOfDonatedAssetsAndOtherMember kep:SejongHaengbogdosiSharingChargeMember 2022-12-31 0000887225 kep:UsageRightsOfDonatedAssetsAndOtherMember kep:RightUseElectricityGasSupplyFacilityCommunityDistrictSongdoMember 2022-12-31 0000887225 kep:OccupancyAndUseOfPublicWatersMember ifrs-full:OtherIntangibleAssetsMember 2022-12-31 0000887225 ifrs-full:OtherIntangibleAssetsMember kep:GreenhouseGasEmissionsRightsMember 2022-12-31 0000887225 ifrs-full:ServiceConcessionRightsMember ifrs-full:OtherIntangibleAssetsMember 2022-12-31 0000887225 ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember kep:ContributionsToARPNRCDCMember 2022-12-31 0000887225 kep:OwnedByGovernmentMember 2022-12-31 0000887225 kep:OwnedByOthersMember 2022-12-31 0000887225 kep:TradeAndOtherReceivablesMember 2022-12-31 0000887225 ifrs-full:FinancialAssetsAtAmortisedCostCategoryMember 2022-12-31 0000887225 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember 2022-12-31 0000887225 ifrs-full:LoansAndReceivablesCategoryMember 2022-12-31 0000887225 kep:CashAndCashEquivalentsMember 2022-12-31 0000887225 ifrs-full:FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember 2022-12-31 0000887225 kep:NonDesignatedMember 2022-12-31 0000887225 kep:DesignatedAsHedgingInstrumentMember 2022-12-31 0000887225 kep:LongtermshorttermFinancialInstrumentsMember 2022-12-31 0000887225 ifrs-full:FinancialGuaranteeContractsMember 2022-12-31 0000887225 ifrs-full:FloatingInterestRateMember 2022-12-31 0000887225 ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember 2022-12-31 0000887225 ifrs-full:LaterThanTwoYearsAndNotLaterThanFiveYearsMember 2022-12-31 0000887225 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:AtFairValueMember 2022-12-31 0000887225 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:AtFairValueMember 2022-12-31 0000887225 ifrs-full:AtFairValueMember 2022-12-31 0000887225 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:AtFairValueMember 2022-12-31 0000887225 kep:LitigationAsTheDefendantMember 2022-12-31 0000887225 kep:LitigationAsThePlaintiffMember 2022-12-31 0000887225 kep:CannotBePresentlyDeterminedMaturityMember 2022-12-31 0000887225 ifrs-full:InterestRateSwapContractMember 2022-12-31 0000887225 ifrs-full:InterestRateSwapContractMember kep:NotDesignatedAsHedgingInstrumentMember 2022-12-31 0000887225 ifrs-full:CurrencySwapContractMember kep:NotDesignatedAsHedgingInstrumentMember 2022-12-31 0000887225 ifrs-full:CurrencySwapContractMember 2022-12-31 0000887225 kep:NotDesignatedAsHedgingInstrumentMember ifrs-full:ForwardContractMember 2022-12-31 0000887225 ifrs-full:InterestRateSwapContractMember kep:DesignatedAsHedgingInstrumentMember 2022-12-31 0000887225 ifrs-full:CurrencySwapContractMember kep:DesignatedAsHedgingInstrumentMember 2022-12-31 0000887225 ifrs-full:OptionContractMember kep:NotDesignatedAsHedgingInstrumentMember 2022-12-31 0000887225 ifrs-full:BuildingsMember ifrs-full:AtFairValueMember 2022-12-31 0000887225 ifrs-full:LandMember ifrs-full:AtFairValueMember 2022-12-31 0000887225 ifrs-full:CarryingAmountMember 2022-12-31 0000887225 ifrs-full:LandMember ifrs-full:CarryingAmountMember 2022-12-31 0000887225 ifrs-full:BuildingsMember ifrs-full:CarryingAmountMember 2022-12-31 0000887225 kep:SystemStabilizationEssEquipmentHamyangSsType1Member 2022-12-31 0000887225 kep:BoryeongNewComplexUnit1ConstructionProjectMember 2022-12-31 0000887225 kep:ConstructionOfGimpoCombinedHeatAndPowerPlantMember 2022-12-31 0000887225 kep:PurchaseOfSteamTurbineHrsgAndPowerBlockOfGimpoCombinedHeatAndPowerPlantMember 2022-12-31 0000887225 kep:ServiceOfDesigningTaeanUnits910Member 2022-12-31 0000887225 kep:Other36ContractsMember 2022-12-31 0000887225 kep:SystemStabilizationEssEquipmentYeongcheonSsType1Member 2022-12-31 0000887225 kep:PurchaseOfGis362kv6300a63kaType18WolsungSyMember 2022-12-31 0000887225 kep:PurchaseOfCablePvc1c2000sq5862mAndOthersBaekunGwangyanghangMember 2022-12-31 0000887225 kep:PurchaseOfEquipmentsForTheConstructionProjectOfBoryeongIndoorCoalStorageYardMember 2022-12-31 0000887225 kep:PurchaseOfGasTurbinesSteamTurbinesAndAccessoriesForGumiNaturalGasPowerPlantMember 2022-12-31 0000887225 kep:PurchaseOfMainMachineForBoryeongNewComplexUnit1Member 2022-12-31 0000887225 kep:PurchaseOfHeatRecoveryBoilerAndAccessoriesForGumiNaturalGasPowerPlantMember 2022-12-31 0000887225 kep:PurchaseOfGasTurbineAndTurbineEquipmentOfGimpoCombinedHeatAndPowerPlantMember 2022-12-31 0000887225 kep:PurchaseOfGis362kv6300a63kaType19ShinyangsanSsMember 2022-12-31 0000887225 kep:ConstructionOfShinhanulUnits12Member 2022-12-31 0000887225 kep:PurchaseOfCableFrCncoW1c325sq672300mUnitPriceContractMember 2022-12-31 0000887225 kep:PurchaseOfMainMachineForJejuLngCombinedMember 2022-12-31 0000887225 kep:PurchaseOfCableTrCnceWAl1c400sq2175300mUnitPriceContractMember 2022-12-31 0000887225 kep:ConstructionOfSaeulUnits34Member 2022-12-31 0000887225 kep:ConcretePole10mGeneralPurpose350kgf126948EaAndFiveOtherEquipmentsUnitPriceContractMember 2022-12-31 0000887225 kep:PurchaseOfCableTrCnceW1c600sq377000mUnitPriceContractMember 2022-12-31 0000887225 kep:PurchaseOfCablePvc1c2000sq87732mAndOthersEulwangboonkiMember 2022-12-31 0000887225 kep:PurchaseOfCableTrCnceW1c325sq1342000mUnitPriceContractMember 2022-12-31 0000887225 kep:PurchaseOfCablePvc1c2500sq100548mAndOthersKyunginConstructionMember 2022-12-31 0000887225 kep:PurchaseOfGis362kv6300a63ka25cbMigeumSsMember 2022-12-31 0000887225 kep:PurchaseofcablePVC1C2500SQ103374MandothersBukdangjinShintangjungMember 2022-12-31 0000887225 kep:PurchaseofGIS362KV6300A63KA23CBYoungseoSSMember 2022-12-31 0000887225 kep:PurchaseofGIS362KV6300A63KA27CBKwangyangSSMember 2022-12-31 0000887225 kep:ConstructionOfShinhanulUnits34Member 2022-12-31 0000887225 kep:PurchaseofcablePVC1C2000SQ153000MandothersShinBupyungYoungseoMember 2022-12-31 0000887225 kep:PurchaseOfCablePvc1c2500sq57868mAndOthersGodukSeoansungMember 2022-12-31 0000887225 kep:SystemStabilizationEssEquipmentBubukSsType1Member 2022-12-31 0000887225 kep:SystemStabilizationEssEquipmentShinnamwonSsType1Member 2022-12-31 0000887225 kep:ConcretePole10mGeneralPurpose500kgf111000EaAndFourOtherEquipmentsMember 2022-12-31 0000887225 kep:AdvancedEtypeLowVoltageElectronicWatthourMeter1311552EaMember 2022-12-31 0000887225 kep:SystemStabilizationEssEquipmentYesanSsType1Member 2022-12-31 0000887225 kep:PurchaseofcoalhandlingmachineforconstructionofSamcheokunits12Member 2022-12-31 0000887225 kep:PurchaseOfPhase2PowerGenerationFacilityForYeongwolFuelCellsMember 2022-12-31 0000887225 kep:PurchaseOfFuelCellPowerGenerationFacilitiesForTheFifthStageOfShinincheonHeadquartersMember 2022-12-31 0000887225 kep:PurchaseMainEquipmentNamjejuMember 2022-12-31 0000887225 kep:PurchaseOfMainEquipmentForShinsejongCombinedThermalPowerPlantMember 2022-12-31 0000887225 kep:InstallationOfNaturalGasSupplyFacilityAtGumiNaturalGasPowerPlantMember 2022-12-31 0000887225 kep:ConstructionOfGumiNaturalGasPowerPlantMember 2022-12-31 0000887225 kep:PurchaseOfHadongThermalPowerIndoorCarboniferousPlantMember 2022-12-31 0000887225 ifrs-full:DerivativesMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember 2022-12-31 0000887225 kep:OtherFinancialAssetsAtFairValueThroughProfitOrLossMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember 2022-12-31 0000887225 kep:BeneficiaryCertificateMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember 2022-12-31 0000887225 ifrs-full:OtherEquitySecuritiesMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember 2022-12-31 0000887225 ifrs-full:LoansToGovernmentMember ifrs-full:GrossCarryingAmountMember 2022-12-31 0000887225 ifrs-full:LoansToGovernmentMember 2022-12-31 0000887225 kep:FinancialAssetsAtAmortisedCostOthersMember ifrs-full:GrossCarryingAmountMember 2022-12-31 0000887225 kep:FinancialAssetsAtAmortisedCostOthersMember 2022-12-31 0000887225 ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 ifrs-full:TopOfRangeMember 2022-12-31 0000887225 kep:LocalShortTermBorrowings4Member 2022-12-31 0000887225 kep:ForeignShortTermBorrowings1Member 2022-12-31 0000887225 kep:ForeignShortTermBorrowings3Member ifrs-full:TopOfRangeMember 2022-12-31 0000887225 kep:ForeignShortTermBorrowings3Member ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 kep:LocalShortTermBorrowings1Member ifrs-full:TopOfRangeMember 2022-12-31 0000887225 kep:LocalShortTermBorrowings1Member ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 kep:KoreaGasCorporationMember 2022-12-31 0000887225 kep:GoseongGreenPowerMember 2022-12-31 0000887225 kep:KPEGreenEnergyCoLtdMember 2022-12-31 0000887225 kep:KWNuclearComponentsMember 2022-12-31 0000887225 kep:HapcheonFloatingPhotovoltaicPowerPlantIncMember 2022-12-31 0000887225 kep:EnelXMidlandPhotovoltaicLlcMember 2022-12-31 0000887225 kep:GeumsungsanWindPowerMember 2022-12-31 0000887225 kep:SeokmunEnergyMember 2022-12-31 0000887225 kep:NaepoGreenEnergyMember 2022-12-31 0000887225 kep:ChuncheonEnergyMember 2022-12-31 0000887225 kep:BoimCombinedHeatAndPowerGenerationCo.Ltd.Member 2022-12-31 0000887225 kep:PyeongchangWindPowerMember 2022-12-31 0000887225 kep:DaesanGreenEnergyCoLtdMember 2022-12-31 0000887225 kep:HaemodumSolarCoLtdMember 2022-12-31 0000887225 kep:YeongamSolarPowerCoLtdMember 2022-12-31 0000887225 kep:DangjinEcoPowerMember 2022-12-31 0000887225 kep:BusanIndustrialSolarPowerMember 2022-12-31 0000887225 kep:YeonggwangWindPowerMember 2022-12-31 0000887225 kep:BusanShinhoSolarPowerMember 2022-12-31 0000887225 kep:Cheong-SongNoraesanWindPowerCoLtdMember 2022-12-31 0000887225 kep:YeonggwangbaeksuWindPowerMember 2022-12-31 0000887225 kep:CheongnaEnergyMember 2022-12-31 0000887225 kep:TwentySixJointVenturesOverseasMember 2022-12-31 0000887225 kep:DaeryunPowerMember 2022-12-31 0000887225 kep:ShinPyeongtaekPowerMember 2022-12-31 0000887225 kep:NoeulGreenEnergyMember 2022-12-31 0000887225 kep:GangwonWindPowerMember 2022-12-31 0000887225 kep:BigeumResidentPhotovoltaicPowerMember 2022-12-31 0000887225 kep:GSDonghaeElectricPowerMember 2022-12-31 0000887225 kep:KNHSolarMember 2022-12-31 0000887225 kep:YTNMember 2022-12-31 0000887225 kep:DongbuHighwaySolarMember 2022-12-31 0000887225 kep:KostureMember 2022-12-31 0000887225 kep:KAPESMember 2022-12-31 0000887225 kep:EightAssociatesOverseasMember 2022-12-31 0000887225 kep:DaeguGreenPowerJointVenturesMember 2022-12-31 0000887225 kep:NamjeongsusangSolarPowerOperationCoLtdMember 2022-12-31 0000887225 kep:MuanSolarParkCoLtdMember 2022-12-31 0000887225 kep:SeobuHighwaySolarMember 2022-12-31 0000887225 kep:SPowerMember 2022-12-31 0000887225 kep:HyundaiEcoEnergyCoLtdMember 2022-12-31 0000887225 kep:YeongGwangYaksuWindElectricCoLtdMember 2022-12-31 0000887225 kep:DummyMember 2022-12-31 0000887225 kep:KoreaElectricPowerIndustrialDevelopmentMember 2022-12-31 0000887225 kep:SamcheokEcoMaterialsMember 2022-12-31 0000887225 kep:BusanGreenEnergyMember 2022-12-31 0000887225 kep:GangneungEcoPowerMember 2022-12-31 0000887225 kep:HyundaiGreenPowerMember 2022-12-31 0000887225 kep:KoreaPowerExchangeMember 2022-12-31 0000887225 kep:SuwonNewPowerCoLtdMember 2022-12-31 0000887225 kep:LongTermFinancialInstrumentsCategoryMember 2022-12-31 0000887225 kep:LongTermFinancialInstrumentsMember 2022-12-31 0000887225 kep:OtherSubsidiariesMember 2022-12-31 0000887225 kep:TaebaekWindPowerMember 2022-12-31 0000887225 kep:PNDSolarMember 2022-12-31 0000887225 kep:MuanSunshineSolarPowerPlantCoLtdMember 2022-12-31 0000887225 kep:HonamWindPowerMember 2022-12-31 0000887225 kep:TaebaekGadeoksanWindPowerCoLtdMember 2022-12-31 0000887225 kep:DaeguPhotovoltaicMember 2022-12-31 0000887225 kep:GoesanSolarParkMember 2022-12-31 0000887225 kep:JejuGimnyeongWindPowerCoLtdMember 2022-12-31 0000887225 kep:CheongjuEcoParkMember 2022-12-31 0000887225 kep:ExpresswaySolarlightPowerGenerationMember 2022-12-31 0000887225 kep:SamsuWindPowerCoLtdMember 2022-12-31 0000887225 kep:BitsolarEnergyMember 2022-12-31 0000887225 kep:ForeignLongTermBorrowings12Member 2022-12-31 0000887225 kep:ForeignLongtermBorrowings13Member ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 kep:ForeignLongtermBorrowings13Member ifrs-full:TopOfRangeMember 2022-12-31 0000887225 kep:ForeignLongtermBorrowings14Member 2022-12-31 0000887225 ifrs-full:BottomOfRangeMember kep:ForeignLongTermBorrowings4Member 2022-12-31 0000887225 ifrs-full:TopOfRangeMember kep:ForeignLongTermBorrowings4Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings1Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings2Member ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 kep:LocalLongTermBorrowings2Member ifrs-full:TopOfRangeMember 2022-12-31 0000887225 kep:LocalLongTermBorrowings6Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings8Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings9Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings10Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings16Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings19Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings21Member ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 kep:LocalLongTermBorrowings21Member ifrs-full:TopOfRangeMember 2022-12-31 0000887225 kep:LocalLongTermBorrowings22Member ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 kep:LocalLongTermBorrowings22Member ifrs-full:TopOfRangeMember 2022-12-31 0000887225 kep:LocalLongTermBorrowings24Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings26Member ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 kep:LocalLongTermBorrowings26Member ifrs-full:TopOfRangeMember 2022-12-31 0000887225 kep:LocalLongTermBorrowings27Member ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 kep:LocalLongTermBorrowings27Member ifrs-full:TopOfRangeMember 2022-12-31 0000887225 kep:ForeignLongTermBorrowings7Member 2022-12-31 0000887225 kep:ForeignLongTermBorrowings8Member 2022-12-31 0000887225 kep:ForeignLongTermBorrowings9Member ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 kep:ForeignLongTermBorrowings9Member ifrs-full:TopOfRangeMember 2022-12-31 0000887225 kep:ForeignLongTermBorrowings11Member 2022-12-31 0000887225 ifrs-full:BottomOfRangeMember kep:Fy96Member 2022-12-31 0000887225 ifrs-full:TopOfRangeMember kep:Fy96Member 2022-12-31 0000887225 ifrs-full:BottomOfRangeMember kep:Fy97Member 2022-12-31 0000887225 ifrs-full:TopOfRangeMember kep:Fy97Member 2022-12-31 0000887225 kep:Fy18bMember ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 kep:Fy18bMember ifrs-full:TopOfRangeMember 2022-12-31 0000887225 ifrs-full:BottomOfRangeMember kep:Fy19cMember 2022-12-31 0000887225 ifrs-full:TopOfRangeMember kep:Fy19cMember 2022-12-31 0000887225 ifrs-full:BottomOfRangeMember kep:Fy19eMember 2022-12-31 0000887225 ifrs-full:TopOfRangeMember kep:Fy19eMember 2022-12-31 0000887225 ifrs-full:BottomOfRangeMember kep:Fy22cMember 2022-12-31 0000887225 ifrs-full:TopOfRangeMember kep:Fy22cMember 2022-12-31 0000887225 ifrs-full:BottomOfRangeMember kep:Fy22fMember 2022-12-31 0000887225 ifrs-full:TopOfRangeMember kep:Fy22fMember 2022-12-31 0000887225 kep:Fy19bMember 2022-12-31 0000887225 kep:Fy15Member 2022-12-31 0000887225 kep:Fy17bMember 2022-12-31 0000887225 kep:Fy22aMember 2022-12-31 0000887225 kep:Fy22bMember 2022-12-31 0000887225 kep:Fy22dMember 2022-12-31 0000887225 kep:Fy20cMember 2022-12-31 0000887225 kep:Fy21bMember 2022-12-31 0000887225 kep:Fy21cMember 2022-12-31 0000887225 kep:Fy21dMember 2022-12-31 0000887225 kep:Fy20dMember 2022-12-31 0000887225 kep:Fy20aMember 2022-12-31 0000887225 kep:Fy18aMember 2022-12-31 0000887225 kep:Fy19aMember 2022-12-31 0000887225 kep:Fy20bMember 2022-12-31 0000887225 kep:Fy17cMember 2022-12-31 0000887225 kep:Fy21aMember 2022-12-31 0000887225 kep:Fy22eMember 2022-12-31 0000887225 kep:Fy22gMember 2022-12-31 0000887225 kep:Fy04Member 2022-12-31 0000887225 kep:Fy14Member 2022-12-31 0000887225 kep:Fy17aMember 2022-12-31 0000887225 ifrs-full:BottomOfRangeMember kep:LocalShortTermBorrowings2Member 2022-12-31 0000887225 ifrs-full:TopOfRangeMember kep:LocalShortTermBorrowings2Member 2022-12-31 0000887225 kep:LocalShortTermBorrowings3Member 2022-12-31 0000887225 ifrs-full:BottomOfRangeMember kep:LocalBankOverdraft1Member 2022-12-31 0000887225 ifrs-full:TopOfRangeMember kep:LocalBankOverdraft1Member 2022-12-31 0000887225 kep:ShortTermFinancialInstrumentsCategoryMember 2022-12-31 0000887225 kep:SaemangeumSebitPowerPlantMember 2022-12-31 0000887225 kep:GwangyangGreenEnergyMember 2022-12-31 0000887225 kep:NineAssociatesOverseasMember 2022-12-31 0000887225 kep:TronixMember 2022-12-31 0000887225 kep:KoreaPowerEngineeringServiceMember 2022-12-31 0000887225 kep:BitgoelEcoEnergyMember 2022-12-31 0000887225 kep:SaemangeumSolarPowerCoLtdMember 2022-12-31 0000887225 kep:GunsanLandSolarMember 2022-12-31 0000887225 kep:SolaseadoSolarPowerMember 2022-12-31 0000887225 kep:KoreaDevelopmentBankMember 2022-12-31 0000887225 kep:GunsanBioEnergyMember 2022-12-31 0000887225 kep:SaemangeumHeemangPhotovoltaicMember 2022-12-31 0000887225 kep:DaejungOffshoreWindPowerMember 2022-12-31 0000887225 kep:ExpenseOfIssuanceMember 2022-12-31 0000887225 kep:KoreaSoutheastPowerMember kep:SecondBondTypeHybridBondMember 2022-12-31 0000887225 ifrs-full:LandMember ifrs-full:NoncurrentAssetsHeldForSaleMember 2022-12-31 0000887225 ifrs-full:BuildingsMember ifrs-full:NoncurrentAssetsHeldForSaleMember 2022-12-31 0000887225 ifrs-full:NoncurrentAssetsHeldForSaleMember 2022-12-31 0000887225 kep:StructuresMember ifrs-full:NoncurrentAssetsHeldForSaleMember 2022-12-31 0000887225 kep:LoansRelatedPartiesMember 2022-12-31 0000887225 kep:NHAmundiGlobalInfrastructureInvestmentPrivateInvestmentTrust21Member 2022-12-31 0000887225 kep:ShinhanBNPPPrivateInvestmentTrustEastWestSunlightDreamMember 2022-12-31 0000887225 kep:CheongnaEnergyMember 2022-12-31 0000887225 kep:DangjinEcoPowerMember 2022-12-31 0000887225 kep:CAESLLCMember 2022-12-31 0000887225 kep:PyeongchangWindPowerMember 2022-12-31 0000887225 kep:EumseongEcoParkMember 2022-12-31 0000887225 kep:SongsanGreenEnergyMember 2022-12-31 0000887225 kep:DEEnergiaSpAMember 2022-12-31 0000887225 kep:StavroHoldingIIABMember 2022-12-31 0000887225 kep:SamsuWindPowerCoLtdMember 2022-12-31 0000887225 kep:YeongamSolarPowerCoLtdMember 2022-12-31 0000887225 kep:PTBaritoWahanaTenagaMember 2022-12-31 0000887225 kep:KASINVESTMENTIILLCMember 2022-12-31 0000887225 kep:PulauIndahPowerPlantSdnBhdMember 2022-12-31 0000887225 kep:SolaseadoSolarPowerMember 2022-12-31 0000887225 kep:CheongjuEcoParkCoLtdMember 2022-12-31 0000887225 kep:YeongwolEcoWindCoLtdMember 2022-12-31 0000887225 kep:GuraeResidentPowerCoLtdMember 2022-12-31 0000887225 kep:ForesightIberianSolarGroupHoldingS.lMember 2022-12-31 0000887225 kep:HaemodumSolarCoLtdMember 2022-12-31 0000887225 kep:InternationalOffshorePowerTransmissionHoldingCompanyLimitedMember 2022-12-31 0000887225 kep:NaepoGreenEnergyMember 2022-12-31 0000887225 kep:EnergycoCoLtdFormerlyEnergycoLlcMember 2022-12-31 0000887225 kep:GuadalupeSolarSpaMember 2022-12-31 0000887225 kep:OmisanWindPowerMember 2022-12-31 0000887225 kep:WaterburyLakeUraniumLPMember 2022-12-31 0000887225 kep:ASMBGInvesticiiADMember 2022-12-31 0000887225 kep:KVHoldingsMember 2022-12-31 0000887225 kep:ShuweihatAsiaPowerInvestmentBVMember 2022-12-31 0000887225 kep:KEPCOUhdeMember 2022-12-31 0000887225 kep:ShuweihatAsiaOperationMaintenanceCompanyMember 2022-12-31 0000887225 kep:OneEnergyAsiaLimitedMember 2022-12-31 0000887225 kep:BitsolarEnergyMember 2022-12-31 0000887225 kep:BusanIndustrialSolarPowerCoLtdMember 2022-12-31 0000887225 kep:HapcheonFloatingPhotovoltaicPowerPlantIncMember 2022-12-31 0000887225 kep:KepcoKpsCarabaoCorpMember 2022-12-31 0000887225 kep:PrimeSwedishHoldingAbMember 2022-12-31 0000887225 kep:GoheungNewEnergyCoLtdMember 2022-12-31 0000887225 kep:GunsanLandSolarCoLtdMember 2022-12-31 0000887225 kep:CapmanLynxScaSicarMember 2022-12-31 0000887225 kep:RESTechnologyADMember 2022-12-31 0000887225 kep:DatangKEPCOChaoyangRenewablePowerMember 2022-12-31 0000887225 kep:JamaicaPublicServiceMember 2022-12-31 0000887225 kep:DatangChifengRenewablePowerMember 2022-12-31 0000887225 kep:RabighOperationMaintenanceMember 2022-12-31 0000887225 kep:MOMENTUMMember 2022-12-31 0000887225 kep:KAPESMember 2022-12-31 0000887225 kep:KIAMCOKOWEPOBannertonHoldCoPtyLtdMember 2022-12-31 0000887225 kep:Cheong-SongNoraesanWindPowerCoLtdMember 2022-12-31 0000887225 kep:REAstoria2LandCoLLCMember 2022-12-31 0000887225 kep:KelarSAMember 2022-12-31 0000887225 kep:PTTanjungPowerIndonesiaMember 2022-12-31 0000887225 kep:REPioneerHoldingsLLCMember 2022-12-31 0000887225 kep:BarakahOneCompanyMember 2022-12-31 0000887225 kep:KEPCOSPCPowerCorporationMember 2022-12-31 0000887225 kep:GansuDatangYumenWindPowerMember 2022-12-31 0000887225 kep:LaurelSpAMember 2022-12-31 0000887225 kep:REBarrenRidgeLandCoLLCMember 2022-12-31 0000887225 kep:ChileSolarJVSpAMember 2022-12-31 0000887225 kep:REHolidayHoldingsLLCMember 2022-12-31 0000887225 kep:REBarrenRidge1HoldingsLLCMember 2022-12-31 0000887225 kep:DaehanWindPowerPSCMember 2022-12-31 0000887225 kep:SouthJamaicaPowerCompanyLimitedMember 2022-12-31 0000887225 kep:NghiSon2PowerMember 2022-12-31 0000887225 kep:IncheonNewPowerMember 2022-12-31 0000887225 kep:YeonggwangWindPowerMember 2022-12-31 0000887225 kep:NawahEnergyMember 2022-12-31 0000887225 kep:SeokmunEnergyMember 2022-12-31 0000887225 kep:ChesterSolarVSpAMember 2022-12-31 0000887225 kep:DiegoDeAlmagroSolarSpAMember 2022-12-31 0000887225 kep:ChesterSolarIVSpAMember 2022-12-31 0000887225 kep:BusanShinhoSolarPowerMember 2022-12-31 0000887225 kep:GlobalTradeOfPowerSystemMember 2022-12-31 0000887225 kep:KoreaPowerEngineeringServiceMember 2022-12-31 0000887225 kep:RabighElectricityMember 2022-12-31 0000887225 kep:DaeguGreenPowerJointVenturesMember 2022-12-31 0000887225 kep:DaesanGreenEnergyCoLtdMember 2022-12-31 0000887225 kep:ChuncheonEnergyMember 2022-12-31 0000887225 kep:YeonggwangbaeksuWindPowerMember 2022-12-31 0000887225 kep:ExpresswaySolarlightPowerGenerationMember 2022-12-31 0000887225 kep:HonamWindPowerMember 2022-12-31 0000887225 kep:AmmanAsiaElectricPowerMember 2022-12-31 0000887225 kep:SeobusamboHighwayPhotovoltaicsCo.Ltd.Member 2022-12-31 0000887225 kep:SeungmunGreenEnergyMember 2022-12-31 0000887225 kep:SpowerChileSpaMember 2022-12-31 0000887225 kep:TrumbullAssetManagementLlcMember 2022-12-31 0000887225 kep:PungbackWindFarmCorporationMember 2022-12-31 0000887225 kep:HasamiWindFarmCorporationMember 2022-12-31 0000887225 kep:KWNuclearComponentsMember 2022-12-31 0000887225 kep:ChangwonNuriEnergyMember 2022-12-31 0000887225 kep:PulauIndahOAndMSdnBhdMember 2022-12-31 0000887225 kep:GeumsungsanWindPowerCoLtdMember 2022-12-31 0000887225 kep:EnelXMidlandPhotovoltaicLlcMember 2022-12-31 0000887225 kep:BoimCombinedHeatAndPowerGenerationCo.Ltd.FormerlyDayoneEnergyCo.Ltd.Member 2022-12-31 0000887225 kep:KASINVESTMENTILLCMember 2022-12-31 0000887225 kep:YangyangWindPowerCoLtdMember 2022-12-31 0000887225 kep:HORUSSOLARSADECVMember 2022-12-31 0000887225 kep:SUNMEXRENOVABLESSADECVMember 2022-12-31 0000887225 kep:RECURSOSSOLARESPVDEMEXICOIISSDECVMember 2022-12-31 0000887225 kep:SolarPhilippinesCalataganCorporationMember 2022-12-31 0000887225 kep:JaeunResidentWindPowerPlantCoLtdMember 2022-12-31 0000887225 kep:ChesterSolarISpAMember 2022-12-31 0000887225 kep:ChungsongmeonBongSanWindPowerCoLtdMember 2022-12-31 0000887225 kep:SaemangeumSolarPowerCoLtdMember 2022-12-31 0000887225 kep:GoDeokCleanEnergyCoLtdMember 2022-12-31 0000887225 kep:O2BGlobalCoLtdMember 2022-12-31 0000887225 kep:FutureConvergenceTechnologyLaboratoryMember 2022-12-31 0000887225 kep:SaemangeumSebitPowerPlantCo.Ltd.Member 2022-12-31 0000887225 kep:YeongyangWindPowerCorporationIiMember 2022-12-31 0000887225 kep:HaeparangEnergyCo.Ltd.Member 2022-12-31 0000887225 kep:DongbuHighwaySolarMember 2022-12-31 0000887225 kep:ChuncheonGreenEnergyCo.Ltd.Member 2022-12-31 0000887225 kep:KoreaEnergyDataCoLtdMember 2022-12-31 0000887225 kep:SaemangeumHeemangPhotovoltaicCoLtdMember 2022-12-31 0000887225 kep:YuDangSolarCoLtdMember 2022-12-31 0000887225 kep:GwangbaekSolarPowerInvestmentCoLtdMember 2022-12-31 0000887225 kep:SEPCoLtdMember 2022-12-31 0000887225 kep:BigeumResidentPhotovoltaicPowerMember 2022-12-31 0000887225 kep:SuwonNewPowerCoLtdMember 2022-12-31 0000887225 kep:SureDataLabCoLtdMember 2022-12-31 0000887225 kep:MuanSunshineSolarPowerPlantCoLtdMember 2022-12-31 0000887225 kep:TronixCoLtdMember 2022-12-31 0000887225 kep:IndeckNilesAssetManagementLLCMember 2022-12-31 0000887225 kep:HankookElectricPowerInformationCoLtdMember 2022-12-31 0000887225 kep:JejuGimnyeongWindPowerCoLtdMember 2022-12-31 0000887225 kep:NamjeongsusangSolarPowerOperationCoLtdMember 2022-12-31 0000887225 kep:GreenRadiationMember 2022-12-31 0000887225 kep:Pt.CirebonEnergiPrasaranaMember 2022-12-31 0000887225 kep:PlatformnMember 2022-12-31 0000887225 kep:BoulderSolarMember 2022-12-31 0000887225 kep:YangguFloatingPhotovoltaicPowerPlantIncMember 2022-12-31 0000887225 kep:SantiagoSolarPowerSpaMember 2022-12-31 0000887225 kep:EnvironmentAndEnergyMember 2022-12-31 0000887225 kep:AceMember 2022-12-31 0000887225 kep:IndeckNilesDevelopmentLLCMember 2022-12-31 0000887225 kep:StnCo.Ltd.FormerlyStructureTestNetworkCo.Ltd.Member 2022-12-31 0000887225 kep:HanwhaCorporation-linkedSunlightPowerSpecialPrivateEquityInvestmentTrustNo1Member 2022-12-31 0000887225 kep:RecsInnovationCo.Ltd.FormerlyWangSanEngineering.Co.Ltd.Member 2022-12-31 0000887225 kep:ScEgMember 2022-12-31 0000887225 kep:KostureCoLtdMember 2022-12-31 0000887225 kep:YeomsubongWindPowerCo.Ltd.Member 2022-12-31 0000887225 kep:GGuruCoLtdMember 2022-12-31 0000887225 kep:TaebaekGadeoksanWindPowerCoLtdMember 2022-12-31 0000887225 kep:GoesanSolarParkCoLtdMember 2022-12-31 0000887225 kep:MuanSolarParkCoLtdMember 2022-12-31 0000887225 kep:Ud4mMember 2022-12-31 0000887225 kep:DaewonGreenEnergyCoLtdMember 2022-12-31 0000887225 kep:SeoroseoroSunnyPowerPlantCoLtdMember 2022-12-31 0000887225 kep:GangneungSacheonFuelCellCoLtdMember 2022-12-31 0000887225 kep:SeobuHighwaySolarMember 2022-12-31 0000887225 kep:AnjwaSmartFarmSolarCityCoLtdMember 2022-12-31 0000887225 kep:BitgoelEcoEnergyCoLtdMember 2022-12-31 0000887225 kep:KoreaPowerExchangeMember 2022-12-31 0000887225 kep:YTNMember 2022-12-31 0000887225 kep:TaebaekWindPowerMember 2022-12-31 0000887225 kep:GangwonWindPowerMember 2022-12-31 0000887225 kep:HaengBokDoSiPhotovoltaicPowerCoLtdMember 2022-12-31 0000887225 kep:GoseongGreenPowerMember 2022-12-31 0000887225 kep:KNOCNigerianEastOilMember 2022-12-31 0000887225 kep:GemengInternationalEnergyMember 2022-12-31 0000887225 kep:PTCirebonElectricPowerMember 2022-12-31 0000887225 kep:KNOCNigerianWestOilMember 2022-12-31 0000887225 kep:KNHSolarMember 2022-12-31 0000887225 kep:HyundaiGreenPowerMember 2022-12-31 0000887225 kep:KoreaEnergySolutionsCoLtdMember 2022-12-31 0000887225 kep:ITRCoLtdMember 2022-12-31 0000887225 kep:PNDSolarMember 2022-12-31 0000887225 kep:KoreaGasCorporationMember 2022-12-31 0000887225 kep:KoreaElectricPowerIndustrialDevelopmentMember 2022-12-31 0000887225 kep:PTMutiaraJawaMember 2022-12-31 0000887225 kep:JinbhuvishPowerGenerationPvtMember 2022-12-31 0000887225 kep:SPCPowerCorporationMember 2022-12-31 0000887225 kep:DaeryunPowerMember 2022-12-31 0000887225 kep:GreenEnergyElectricityGenerationCoLtdMember 2022-12-31 0000887225 kep:GunsanBioEnergyMember 2022-12-31 0000887225 kep:GwangyangGreenEnergyMember 2022-12-31 0000887225 kep:HansuwonKnpCoLtdFormerlyKoreaNuclearPartnersCoLtdMember 2022-12-31 0000887225 kep:YaksuESSLtdMember 2022-12-31 0000887225 kep:NepalWaterEnergyDevelopmentCompanyPrivateLimiteMember 2022-12-31 0000887225 kep:DaegucleanEnergyMember 2022-12-31 0000887225 kep:HyundaiEcoEnergyCoLtdMember 2022-12-31 0000887225 kep:EnergyInfraAssetManagementMember 2022-12-31 0000887225 kep:PioneerGasPowerMember 2022-12-31 0000887225 kep:DaeguPhotovoltaicMember 2022-12-31 0000887225 kep:PTWampuElectricPowerMember 2022-12-31 0000887225 kep:SPowerMember 2022-12-31 0000887225 kep:KoreaElectricPowerCorporationFundMember 2022-12-31 0000887225 kep:YeongGwangYaksuWindElectricCoLtdMember 2022-12-31 0000887225 kep:EurasiaEnergyHoldingsMember 2022-12-31 0000887225 kep:XePianXeNamnoyPowerMember 2022-12-31 0000887225 kep:TaebackGuinemiWindPowerMember 2022-12-31 0000887225 kep:NoeulGreenEnergyMember 2022-12-31 0000887225 kep:ShinPyeongtaekPowerMember 2022-12-31 0000887225 kep:PTBayanResourcesTBKMember 2022-12-31 0000887225 kep:DaejungOffshoreWindPowerMember 2022-12-31 0000887225 kep:BusanGreenEnergyMember 2022-12-31 0000887225 kep:DongducheonDreamPowerMember 2022-12-31 0000887225 kep:SamcheokEcoMaterialsCo.LimitedMember 2022-12-31 0000887225 kep:GangneungEcoPowerMember 2022-12-31 0000887225 kep:GSDonghaeElectricPowerMember 2022-12-31 0000887225 kep:GwangbaekSolarPowerInvestmentCoLtdMember 2022-12-31 0000887225 kep:TaebackGuinemiWindPowerMember 2022-12-31 0000887225 kep:PlatformnMember 2022-12-31 0000887225 kep:KoreaEnergySolutionsCoLtdMember 2022-12-31 0000887225 kep:AnjwaSmartFarmSolarCityMember 2022-12-31 0000887225 kep:KEPCOUhdeMember 2022-12-31 0000887225 kep:ForeignLongtermBorrowings15Member ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 kep:ForeignLongtermBorrowings15Member ifrs-full:TopOfRangeMember 2022-12-31 0000887225 kep:LocalLongTermBorrowings20Member ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 kep:LocalLongTermBorrowings20Member ifrs-full:TopOfRangeMember 2022-12-31 0000887225 ifrs-full:TopOfRangeMember kep:ForeignLongTermBorrowings5Member 2022-12-31 0000887225 kep:ForeignLongTermBorrowings5Member ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 kep:LocalLongTermBorrowings22Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings14Member ifrs-full:TopOfRangeMember 2022-12-31 0000887225 kep:LocalLongTermBorrowings14Member ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 kep:LocalLongTermBorrowings11Member ifrs-full:TopOfRangeMember 2022-12-31 0000887225 kep:LocalLongTermBorrowings11Member ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 kep:LocalLongTermBorrowings5Member ifrs-full:TopOfRangeMember 2022-12-31 0000887225 kep:LocalLongTermBorrowings5Member ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 ifrs-full:TopOfRangeMember kep:LocalLongTermBorrowings4Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings4Member ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 ifrs-full:CountryOfDomicileMember 2022-12-31 0000887225 ifrs-full:ForeignCountriesMember 2022-12-31 0000887225 kep:LocalLongTermBorrowings2Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings3Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings4Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings5Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings13Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings14Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings15Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings17Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings18Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings7Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings11Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings12Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings27Member 2022-12-31 0000887225 kep:LocalLongTermBorrowingsMember 2022-12-31 0000887225 kep:ForeignLongTermBorrowings1Member 2022-12-31 0000887225 kep:ForeignLongTermBorrowings2Member 2022-12-31 0000887225 kep:ForeignLongTermBorrowings3Member 2022-12-31 0000887225 kep:ForeignLongTermBorrowings4Member 2022-12-31 0000887225 kep:ForeignLongTermBorrowings5Member 2022-12-31 0000887225 kep:ForeignLongTermBorrowings6Member 2022-12-31 0000887225 kep:ForeignLongTermBorrowings9Member 2022-12-31 0000887225 kep:ForeignLongTermBorrowings10Member 2022-12-31 0000887225 kep:ForeignLongtermBorrowings13Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings20Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings21Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings23Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings25Member 2022-12-31 0000887225 kep:LocalLongTermBorrowings26Member 2022-12-31 0000887225 kep:ForeignLongtermBorrowings15Member 2022-12-31 0000887225 kep:ForeignLongtermBorrowings16Member 2022-12-31 0000887225 kep:ForeignLongTermBorrowingsMember 2022-12-31 0000887225 kep:OtherNoncurrentAssetsMember 2022-12-31 0000887225 kep:NonCurrentFinancialAssetsAtFairValueThroughProfitOrLossCategoryMember 2022-12-31 0000887225 kep:ElectricityBonds1Member 2022-12-31 0000887225 kep:CorporateBondsMember 2022-12-31 0000887225 kep:CorporateBonds1Member 2022-12-31 0000887225 kep:LocalDebtSecuritiesMember 2022-12-31 0000887225 kep:Fy96Member 2022-12-31 0000887225 kep:Fy19cMember 2022-12-31 0000887225 kep:Fy19dMember 2022-12-31 0000887225 kep:Fy19eMember 2022-12-31 0000887225 kep:Fy18bMember 2022-12-31 0000887225 kep:Fy97Member 2022-12-31 0000887225 kep:Fy22fMember 2022-12-31 0000887225 kep:ForeignDebtSecuritiesMember 2022-12-31 0000887225 kep:Fy22cMember 2022-12-31 0000887225 kep:TransmissionAndDistributionMember ifrs-full:OperatingSegmentsMember 2022-12-31 0000887225 kep:ElectricPowerGenerationNuclearMember ifrs-full:OperatingSegmentsMember 2022-12-31 0000887225 kep:ElectricPowerGenerationNonNuclearMember ifrs-full:OperatingSegmentsMember 2022-12-31 0000887225 ifrs-full:OperatingSegmentsMember 2022-12-31 0000887225 kep:DeferredTaxesAdjustmentMember 2022-12-31 0000887225 ifrs-full:EliminationOfIntersegmentAmountsMember 2022-12-31 0000887225 kep:OthersAdjustmentMember 2022-12-31 0000887225 ifrs-full:MaterialReconcilingItemsMember 2022-12-31 0000887225 kep:PlantMaintenanceEngineeringServiceMember ifrs-full:OperatingSegmentsMember 2022-12-31 0000887225 ifrs-full:AllOtherSegmentsMember ifrs-full:OperatingSegmentsMember 2022-12-31 0000887225 kep:EquityMethodAdjustmentMember 2022-12-31 0000887225 kep:ChesterSolarIVSpAMember 2022-12-31 0000887225 kep:KAPESMember 2022-12-31 0000887225 kep:BoimCombinedHeatAndPowerGenerationCo.Ltd.FormerlyDayoneEnergyCo.Ltd.Member 2022-12-31 0000887225 kep:InternationalOffshorePowerTransmissionHoldingCompanyLimitedMember 2022-12-31 0000887225 kep:KepcoKpsCarabaoCorpMember 2022-12-31 0000887225 kep:IncheonNewPowerMember 2022-12-31 0000887225 kep:NghiSon2PowerMember 2022-12-31 0000887225 kep:BarakahOneCompanyMember 2022-12-31 0000887225 kep:NaepoGreenEnergyMember 2022-12-31 0000887225 kep:MiraeEngineeringCo.LtdMember 2022-12-31 0000887225 kep:WhitecleanFoodsCo.LtdMember 2022-12-31 0000887225 kep:ChaegimEnvironmentDevelopmentCo.LtdMember 2022-12-31 0000887225 kep:DaesungStainCo.LtdMember 2022-12-31 0000887225 kep:TaesanCo.LtdMember 2022-12-31 0000887225 kep:KShipbuildingCo.Ltd.Member 2022-12-31 0000887225 kep:FinePowerexCo.LtdMember 2022-12-31 0000887225 kep:DaeheungEngineeringCo.LtdMember 2022-12-31 0000887225 kep:EtapolCo.LtdMember 2022-12-31 0000887225 kep:DongyangR.p.f.IndustrialCo.LtdMember 2022-12-31 0000887225 kep:JicoCo.LtdMember 2022-12-31 0000887225 kep:CommonComputerCo.LtdMember 2022-12-31 0000887225 kep:YoongwonInternationalCo.LtdMember 2022-12-31 0000887225 kep:YuilEngineeringCo.LtdMember 2022-12-31 0000887225 kep:CheonwooE.p.sCo.LtdMember 2022-12-31 0000887225 kep:InformationcommunicationFinancialCooperativeCo.LtdMember 2022-12-31 0000887225 kep:J.iSteelCo.LtdMember 2022-12-31 0000887225 kep:G.mFoodsCo.LtdMember 2022-12-31 0000887225 kep:MecCo.LtdMember 2022-12-31 0000887225 kep:WooriAsconCo.LtdMember 2022-12-31 0000887225 kep:HntCo.LtdMember 2022-12-31 0000887225 kep:MacroadCo.LtdMember 2022-12-31 0000887225 kep:EunsungIndustrialCo.LtdMember 2022-12-31 0000887225 kep:SangjinCo.LtdMember 2022-12-31 0000887225 kep:NewTechCo.LtdMember 2022-12-31 0000887225 kep:KoreaRemiconCo.LtdMember 2022-12-31 0000887225 kep:KoaTechCo.LtdMember 2022-12-31 0000887225 kep:ElectricContractorsFinancialCooperativeCo.LtdMember 2022-12-31 0000887225 kep:MsTechCo.LtdMember 2022-12-31 0000887225 kep:MichangCableCo.LtdMember 2022-12-31 0000887225 kep:DaejuSteelCo.LtdMember 2022-12-31 0000887225 kep:SegeonCo.LtdMember 2022-12-31 0000887225 kep:TopisCo.LtdMember 2022-12-31 0000887225 kep:AvohCeramicbathCo.LtdMember 2022-12-31 0000887225 kep:KpeCo.LtdMember 2022-12-31 0000887225 kep:CoffeenieCo.LtdMember 2022-12-31 0000887225 kep:MediPharmaPlanCo.LtdMember 2022-12-31 0000887225 kep:GlTechCo.LtdMember 2022-12-31 0000887225 kep:TaejinCo.LtdMember 2022-12-31 0000887225 kep:DongbangfarmsCo.LtdMember 2022-12-31 0000887225 kep:SungdoPackCo.LtdMember 2022-12-31 0000887225 kep:WoongjinEnergyCo.LtdMember 2022-12-31 0000887225 kep:CheonhaeCo.LtdMember 2022-12-31 0000887225 kep:IksanguwonCo.LtdMember 2022-12-31 0000887225 kep:DaeyeonecoCo.LtdMember 2022-12-31 0000887225 kep:WecanGlobalInc.Co.LtdMember 2022-12-31 0000887225 kep:HyundaiGlassCo.LtdMember 2022-12-31 0000887225 kep:HyesungCablecommunicationIncMember 2022-12-31 0000887225 kep:DongShinHydrauliesCo.LtdMember 2022-12-31 0000887225 kep:JinwooTextileCo.LtdMember 2022-12-31 0000887225 kep:SkeCableCo.LtdMember 2022-12-31 0000887225 kep:HiKoreaCo.LtdMember 2022-12-31 0000887225 kep:MyungilMetalCo.LtdMember 2022-12-31 0000887225 kep:CicTechCo.LtdMember 2022-12-31 0000887225 kep:FoureverCo.LtdMember 2022-12-31 0000887225 kep:DaeshinEcmCo.LtdMember 2022-12-31 0000887225 kep:DiTechCo.LtdMember 2022-12-31 0000887225 kep:MideumeuljuneunnamuCo.LtdMember 2022-12-31 0000887225 kep:JingkangResourcesCo.LtdMember 2022-12-31 0000887225 kep:UiCo.LtdMember 2022-12-31 0000887225 kep:OranoExpansionMember 2022-12-31 0000887225 kep:KamadaKoreaCo.LtdMember 2022-12-31 0000887225 kep:ShinwonCo.LtdMember 2022-12-31 0000887225 kep:SangsinCo.LtdMember 2022-12-31 0000887225 kep:FosysCo.LtdMember 2022-12-31 0000887225 kep:JiansConstructionCo.LtdMember 2022-12-31 0000887225 kep:SeilTextileCo.LtdMember 2022-12-31 0000887225 kep:DaeoCo.LtdMember 2022-12-31 0000887225 kep:JslCo.LtdMember 2022-12-31 0000887225 kep:HansAdCo.LtdMember 2022-12-31 0000887225 kep:TsntCo.Ltd.Member 2022-12-31 0000887225 kep:HaesungMetalCo.LtdMember 2022-12-31 0000887225 kep:IlshinTechCo.LtdMember 2022-12-31 0000887225 kep:EwonArtCo.LtdMember 2022-12-31 0000887225 kep:EslinCo.LtdMember 2022-12-31 0000887225 kep:SukwonCo.LtdMember 2022-12-31 0000887225 kep:SimaCo.LtdMember 2022-12-31 0000887225 kep:AsptCo.LtdMember 2022-12-31 0000887225 kep:DuckwonIndustrialCo.LtdMember 2022-12-31 0000887225 kep:LbkCo.LtdMember 2022-12-31 0000887225 kep:GbPrecisionCo.LtdMember 2022-12-31 0000887225 kep:SteelFocusCo.LtdMember 2022-12-31 0000887225 kep:GreencarbonCo.LtdMember 2022-12-31 0000887225 kep:DhTradingCo.LtdMember 2022-12-31 0000887225 kep:SunkooCo.LtdMember 2022-12-31 0000887225 kep:WorldOneCo.LtdMember 2022-12-31 0000887225 kep:YewonCo.LtdMember 2022-12-31 0000887225 kep:DyntexKoreaCo.LtdMember 2022-12-31 0000887225 kep:GhTechCo.LtdMember 2022-12-31 0000887225 kep:MagtecCo.LtdMember 2022-12-31 0000887225 kep:SamkumIndustryCo.LtdMember 2022-12-31 0000887225 kep:HandonCo.LtdMember 2022-12-31 0000887225 kep:BokwangCo.LtdMember 2022-12-31 0000887225 kep:LoftGardenCo.LtdMember 2022-12-31 0000887225 kep:ShinsungTechCo.LtdMember 2022-12-31 0000887225 kep:DongInIndustryCo.LtdMember 2022-12-31 0000887225 kep:YsmCo.LtdMember 2022-12-31 0000887225 kep:MiretechCoLtdMember 2022-12-31 0000887225 kep:EunSungEnterpriseCo.LtdMember 2022-12-31 0000887225 kep:WooyangHCCoLtdMember 2022-12-31 0000887225 kep:SMHi-techCoLtdMember 2022-12-31 0000887225 kep:SamkwangChemicalCoLtdMember 2022-12-31 0000887225 kep:SamjooHightechCoLtdMember 2022-12-31 0000887225 kep:ShinseungChemicalIndustyCoLtdMember 2022-12-31 0000887225 kep:KJAlloyCoLtdMember 2022-12-31 0000887225 kep:DongSeoElectronicsCoLtdMember 2022-12-31 0000887225 kep:DaewooDisplayCoLtdMember 2022-12-31 0000887225 kep:NTSCoLtdMember 2022-12-31 0000887225 kep:AIDCOLTDMember 2022-12-31 0000887225 kep:JaewooCoLtdMember 2022-12-31 0000887225 kep:TheYeonrijiCoLtdMember 2022-12-31 0000887225 kep:BellieDoughnutsCoLtdMember 2022-12-31 0000887225 kep:KyungPyoIndustryCoLtdMember 2022-12-31 0000887225 kep:DoosungHeavyIndustriesCoLtdMember 2022-12-31 0000887225 kep:ChangwonEcofriendlyFarmingCorporationMember 2022-12-31 0000887225 kep:KumoHitechCoLtdMember 2022-12-31 0000887225 kep:FlusysCoLtdMember 2022-12-31 0000887225 kep:SewonBusCoLtdMember 2022-12-31 0000887225 kep:AIRTECHInformationCommunicationCoLtdMember 2022-12-31 0000887225 kep:KiscomCoLtdMember 2022-12-31 0000887225 kep:FishWorldMember 2022-12-31 0000887225 kep:SejinHightechCoLtdMember 2022-12-31 0000887225 kep:ShinyoungTextilesCoLtdMember 2022-12-31 0000887225 kep:IlwooSteelCoLtdMember 2022-12-31 0000887225 kep:Dong-unTechCoLtdMember 2022-12-31 0000887225 kep:EanskoreaCoLtdMember 2022-12-31 0000887225 kep:YoungdongseafoodCoLtdMember 2022-12-31 0000887225 kep:AgencoreCo.LtdMember 2022-12-31 0000887225 kep:PuruenEnvironmentCoLtdMember 2022-12-31 0000887225 kep:SuperoneCoLtdMember 2022-12-31 0000887225 kep:MillenniumPNTCoLtdMember 2022-12-31 0000887225 kep:KMLCCoLtdMember 2022-12-31 0000887225 kep:SeinfoodCoLtdMember 2022-12-31 0000887225 kep:IZUKOREACoLtdMember 2022-12-31 0000887225 kep:KPLCircuitCoLtdMember 2022-12-31 0000887225 kep:YoungSanHeavyIndustriesCoLtdMember 2022-12-31 0000887225 kep:DaeMyungCoLtdMember 2022-12-31 0000887225 kep:SamsungNonferrousMetalCoLtdMember 2022-12-31 0000887225 kep:DaewhaFuelPumpIndLtdMember 2022-12-31 0000887225 kep:ChangWonEngineeringCoLtdMember 2022-12-31 0000887225 kep:SamsungSilupCoLtdMember 2022-12-31 0000887225 kep:KukexIncMember 2022-12-31 0000887225 kep:YoungshinPlusCo.Ltd.Member 2022-12-31 0000887225 kep:TaeSungEco-TechCoLtdMember 2022-12-31 0000887225 kep:SIPCoLtdMember 2022-12-31 0000887225 kep:SSETCoLtdMember 2022-12-31 0000887225 kep:DaejiProductCoLtdMember 2022-12-31 0000887225 kep:ClizenCoLtdMember 2022-12-31 0000887225 kep:DawonYuhwaCoLtdMember 2022-12-31 0000887225 kep:SewonPMTechCoLtdMember 2022-12-31 0000887225 kep:EwonMaterialsCoLtdMember 2022-12-31 0000887225 kep:GNChemCoLtdMember 2022-12-31 0000887225 kep:WooyangFrozenFoodsCoLtdMember 2022-12-31 0000887225 kep:NanomicCoLtdMember 2022-12-31 0000887225 kep:NanomicartCoLtdMember 2022-12-31 0000887225 kep:SamchungwonCoLtdMember 2022-12-31 0000887225 kep:TaejinHiechCoLtdMember 2022-12-31 0000887225 kep:DongdoCNPCoLtdMember 2022-12-31 0000887225 kep:HanMiFlexibleCoLtdMember 2022-12-31 0000887225 kep:SITCoLtdMember 2022-12-31 0000887225 kep:E-WonSolutechCoLtdMember 2022-12-31 0000887225 kep:RoadSolarCoLtdMember 2022-12-31 0000887225 kep:JeongpumCoLtdMember 2022-12-31 0000887225 kep:YuchangIndustryCoLtdMember 2022-12-31 0000887225 kep:AmanexCoLtdMember 2022-12-31 0000887225 kep:KoreaSteelPowerCoLtdMember 2022-12-31 0000887225 kep:HyunwooWinstarCoLtdMember 2022-12-31 0000887225 kep:SungchangTechCoLtdMember 2022-12-31 0000887225 kep:CaffeBeneCoLtdMember 2022-12-31 0000887225 kep:ShinjinInternationalCorpMember 2022-12-31 0000887225 kep:Dae-ALeisureCoLtdMember 2022-12-31 0000887225 kep:OgokbaekkwaCoLtdMember 2022-12-31 0000887225 kep:JinhungPackagingCoLtdMember 2022-12-31 0000887225 kep:DonglimEngCoLtdMember 2022-12-31 0000887225 kep:DaeBangIndustryCoLtdMember 2022-12-31 0000887225 kep:HeadoneCoLtdMember 2022-12-31 0000887225 kep:SamwonBioTechCoLtdMember 2022-12-31 0000887225 kep:AddiesDirectCoLtdMember 2022-12-31 0000887225 kep:WorldCnMIncMember 2022-12-31 0000887225 kep:SangjiCoLtdMember 2022-12-31 0000887225 kep:SetHoldingMember 2022-12-31 0000887225 kep:KyeonggwangTechCo.ltdMember 2022-12-31 0000887225 kep:TaegwangPcCo.LtdMember 2022-12-31 0000887225 kep:AronFlyingShipCo.LtdMember 2022-12-31 0000887225 kep:DaedongCo.LtdMember 2022-12-31 0000887225 kep:SamhongMachinery.EmcCo.LtdMember 2022-12-31 0000887225 kep:GaoneInternationalCo.LtdMember 2022-12-31 0000887225 kep:JjTechCo.Member 2022-12-31 0000887225 kep:SamwangCo.LtdMember 2022-12-31 0000887225 kep:SekwangPrecisionCo.LtdMember 2022-12-31 0000887225 kep:SnopaCo.LtdMember 2022-12-31 0000887225 kep:HanaItmInc.Member 2022-12-31 0000887225 kep:CkIndustryCo.LtdMember 2022-12-31 0000887225 kep:StsGlobalCo.LtdMember 2022-12-31 0000887225 kep:TaeyoungPrecisionCo.LtdMember 2022-12-31 0000887225 kep:MinjinCo.LtdMember 2022-12-31 0000887225 kep:YmTechCo.LtdMember 2022-12-31 0000887225 kep:MsPrecisionCo.LtdMember 2022-12-31 0000887225 kep:JbmCo.LtdMember 2022-12-31 0000887225 kep:YurimCnfCo.LtdMember 2022-12-31 0000887225 kep:GogangAluminumCo.LtdMember 2022-12-31 0000887225 kep:NyTechCo.LtdMember 2022-12-31 0000887225 kep:SamjinPlacoCo.LtdMember 2022-12-31 0000887225 kep:DongyangPratechCo.LtdMember 2022-12-31 0000887225 kep:DaekwangForgingCo.LtdMember 2022-12-31 0000887225 kep:DailyshotCo.LtdMember 2022-12-31 0000887225 kep:AlohaFactoryCo.LtdMember 2022-12-31 0000887225 kep:ShinHeungPrecisionCo.LtdMember 2022-12-31 0000887225 kep:DaejooEgCo.LtdMember 2022-12-31 0000887225 kep:CcEngCo.LtdMember 2022-12-31 0000887225 kep:JungwooMetalSolutionCo.LtdMember 2022-12-31 0000887225 kep:GuseulCo.LtdMember 2022-12-31 0000887225 kep:SamhyupCo.LtdMember 2022-12-31 0000887225 kep:SkdKoreaCo.LtdMember 2022-12-31 0000887225 kep:ThesunCo.LtdMember 2022-12-31 0000887225 kep:JunginDistributionCo.LtdMember 2022-12-31 0000887225 kep:DaeyangHydroCo.LtdMember 2022-12-31 0000887225 kep:EbadomCo.LtdMember 2022-12-31 0000887225 kep:ThermoTecCo.LtdMember 2022-12-31 0000887225 kep:SeokjinEtCo.Ltd.Member 2022-12-31 0000887225 kep:ChounghwaPreciseCo.LtdMember 2022-12-31 0000887225 kep:DaewoongAndTechnologyCo.LtdMember 2022-12-31 0000887225 kep:MediquitousCo.LtdMember 2022-12-31 0000887225 kep:MsSteelIndustrialCo.LtdMember 2022-12-31 0000887225 kep:SfcInternationalCo.LtdMember 2022-12-31 0000887225 kep:ShieldBoardCo.LtdMember 2022-12-31 0000887225 kep:DongbangMetalCo.LtdMember 2022-12-31 0000887225 kep:KoreaOceanMachineryTechnologyCo.ltd.Member 2022-12-31 0000887225 kep:TaekwangPaperBoardCo.LtdMember 2022-12-31 0000887225 kep:JeuvisCo.LtdMember 2022-12-31 0000887225 kep:YTechCo.LtdMember 2022-12-31 0000887225 kep:SangmooSteelCo.LtdMember 2022-12-31 0000887225 kep:HurimBiocellMember 2022-12-31 0000887225 kep:KoreaTrecisionMember 2022-12-31 0000887225 kep:AceIntegrationMember 2022-12-31 0000887225 kep:HyoDongDevelopmentMember 2022-12-31 0000887225 kep:ChunWonDevelopmentMember 2022-12-31 0000887225 kep:SunjinPowerTechMember 2022-12-31 0000887225 kep:KoreaMineralsMember 2022-12-31 0000887225 kep:DauningMember 2022-12-31 0000887225 kep:ForceTECMember 2022-12-31 0000887225 kep:JoHyunMember 2022-12-31 0000887225 kep:SeongJiIndustrialMember 2022-12-31 0000887225 kep:KCMember 2022-12-31 0000887225 kep:DooriwonFoodSystemMember 2022-12-31 0000887225 kep:SungKwangMember 2022-12-31 0000887225 kep:HyungjiEsquireMember 2022-12-31 0000887225 kep:WoojooEnvironmentIndMember 2022-12-31 0000887225 kep:FutechMoldMember 2022-12-31 0000887225 kep:KwangSungIndustryMember 2022-12-31 0000887225 kep:YoungSungMember 2022-12-31 0000887225 kep:BiwangIndustryMember 2022-12-31 0000887225 kep:WoobangConstructionMember 2022-12-31 0000887225 kep:SeenBusinessAndTechnologyCoLtdMember 2022-12-31 0000887225 kep:MoradoMember 2022-12-31 0000887225 kep:MyungSungTexMember 2022-12-31 0000887225 kep:YuilIndustrialElectronicsMember 2022-12-31 0000887225 kep:WoojinIndustryMember 2022-12-31 0000887225 kep:SmartPowerMember 2022-12-31 0000887225 kep:SinkwangIndustryMember 2022-12-31 0000887225 kep:BumyangConstructionMember 2022-12-31 0000887225 kep:NamkwangEngineeringConstructionMember 2022-12-31 0000887225 kep:STXHeavyIndustriesMember 2022-12-31 0000887225 kep:PANoceanMember 2022-12-31 0000887225 kep:ELCOMTECMember 2022-12-31 0000887225 kep:JoongangPlatecMember 2022-12-31 0000887225 kep:CodesCombineMember 2022-12-31 0000887225 kep:IhsungCNICoLtdMember 2022-12-31 0000887225 kep:SAMBOAUTOMember 2022-12-31 0000887225 kep:MoboMember 2022-12-31 0000887225 kep:SanbonDepartmentStoreMember 2022-12-31 0000887225 kep:MijuSteelMfgMember 2022-12-31 0000887225 kep:DaeKwangSemiconductorMember 2022-12-31 0000887225 kep:NewasiaCoLtdFormerlyAJSCoLtdMember 2022-12-31 0000887225 kep:MoonkyungSilicaMember 2022-12-31 0000887225 kep:AltronJeonjuCo.Ltd.Member 2022-12-31 0000887225 kep:KoreaDistrictHeatingMember 2022-12-31 0000887225 kep:KGMobilityCompanyLimitedMember 2022-12-31 0000887225 kep:VissemElectronicsCo.LtdMember 2022-12-31 0000887225 kep:KoreaLineMember 2022-12-31 0000887225 kep:SeyangMember 2022-12-31 0000887225 kep:IlsukMember 2022-12-31 0000887225 kep:IlrimNanoTecMember 2022-12-31 0000887225 kep:JoongangDevelopmentMember 2022-12-31 0000887225 kep:ZyleDaewooMotorSalesMember 2022-12-31 0000887225 kep:DALIMSpecialVehicleMember 2022-12-31 0000887225 kep:MSEMember 2022-12-31 0000887225 kep:SeungriEnterpriseMember 2022-12-31 0000887225 kep:ShinEPCMember 2022-12-31 0000887225 kep:EjungAdMember 2022-12-31 0000887225 kep:DaewooDevelopmentMember 2022-12-31 0000887225 kep:NFTMember 2022-12-31 0000887225 kep:HyundaitechMember 2022-12-31 0000887225 kep:PtotronicsMember 2022-12-31 0000887225 kep:DasanMaterialMember 2022-12-31 0000887225 kep:LmatCo.Ltd.Member 2022-12-31 0000887225 kep:ChoiganggujoCo.Ltd.Member 2022-12-31 0000887225 kep:UktaeInd.Co.Ltd.Member 2022-12-31 0000887225 kep:JungmunCoLtdMember 2022-12-31 0000887225 kep:AndongTradingCorporationCoLtdMember 2022-12-31 0000887225 kep:NineBCo.Ltd.Member 2022-12-31 0000887225 kep:IpsBioCo.Ltd.Member 2022-12-31 0000887225 kep:LeSoleilKhnpLlcMember 2022-12-31 0000887225 kep:IhsungCniCo.LtdMember 2022-12-31 0000887225 kep:HRoboticsCoLtdMember 2022-12-31 0000887225 kep:JMTechCoLtdMember 2022-12-31 0000887225 kep:SGCEnergyCoLtdMember 2022-12-31 0000887225 kep:GoodTcellsCoLtdMember 2022-12-31 0000887225 kep:HaenaraeAgriculturalCorpMember 2022-12-31 0000887225 kep:VornechCo.Ltd.Member 2022-12-31 0000887225 kep:SaeheemangCo.LtdMember 2022-12-31 0000887225 kep:KoreaEngineerManufacturingCo.Ltd.Member 2022-12-31 0000887225 kep:GuseongCo.Ltd.Member 2022-12-31 0000887225 kep:YujinEcCo.Ltd.Member 2022-12-31 0000887225 kep:HakbongPrecisionCo.Ltd.Member 2022-12-31 0000887225 kep:HosungsteelCo.Ltd.Member 2022-12-31 0000887225 kep:DaeilCo.Ltd.Member 2022-12-31 0000887225 kep:K2MotorsCo.Ltd.Member 2022-12-31 0000887225 kep:GentakKoreaCo.Ltd.Member 2022-12-31 0000887225 kep:JfcCo.LtdMember 2022-12-31 0000887225 kep:WoosungIBCoLtdMember 2022-12-31 0000887225 kep:SungkyeongCoLtdMember 2022-12-31 0000887225 kep:GeumhanCoLtdMember 2022-12-31 0000887225 kep:DonghwaTCACoLtdMember 2022-12-31 0000887225 kep:GTToolingCoLtdMember 2022-12-31 0000887225 kep:AvajarCoLtdMember 2022-12-31 0000887225 kep:GlobalTheOneofKoreaCoLtdMember 2022-12-31 0000887225 kep:CSCorporationCoLtdMember 2022-12-31 0000887225 kep:WooriIndustryCoLtdMember 2022-12-31 0000887225 kep:CocoFoodCoLtdMember 2022-12-31 0000887225 kep:SHCoLtdMember 2022-12-31 0000887225 kep:GetronCoLtdMember 2022-12-31 0000887225 kep:DCCastechCoLtdMember 2022-12-31 0000887225 kep:ChoheungPackingCoLtdMember 2022-12-31 0000887225 kep:ShinseiTradingMember 2022-12-31 0000887225 kep:GreenAlchemyMember 2022-12-31 0000887225 kep:YouoneTBMEngineeringConstructionMember 2022-12-31 0000887225 kep:TaejungIndustriesMember 2022-12-31 0000887225 kep:EnertecCoLtdMember 2022-12-31 0000887225 kep:SemistMember 2022-12-31 0000887225 kep:MansuCoLtdMember 2022-12-31 0000887225 kep:WongwangDoorCorpMember 2022-12-31 0000887225 kep:SGShinsungEngineeringandConstructionMember 2022-12-31 0000887225 kep:SamdoIndustryElectricMember 2022-12-31 0000887225 kep:KmLeatechCo.Ltd.Member 2022-12-31 0000887225 kep:DynamicMember 2022-12-31 0000887225 kep:TKCoLtdMember 2022-12-31 0000887225 kep:SungkwangCoLtdMember 2022-12-31 0000887225 kep:SewonCeramicCoLtdMember 2022-12-31 0000887225 kep:EILightingCoLtdMember 2022-12-31 0000887225 kep:BuyoungPanjiCoLtdMember 2022-12-31 0000887225 kep:WenexCoLtdMember 2022-12-31 0000887225 kep:SimileAluminiumCoLtdMember 2022-12-31 0000887225 kep:HankookPiagetCoLtdMember 2022-12-31 0000887225 kep:MezzanineIPackCoLtdMember 2022-12-31 0000887225 kep:MSMCoLtdMember 2022-12-31 0000887225 kep:LtopCoLtdMember 2022-12-31 0000887225 kep:KTTWCoLtdMember 2022-12-31 0000887225 kep:SulimCoLtdMember 2022-12-31 0000887225 kep:NewkoCoLtdMember 2022-12-31 0000887225 kep:DdpopstyleCoLtdMember 2022-12-31 0000887225 kep:CAPKoreaCoLtdMember 2022-12-31 0000887225 kep:PizzakoreaCoLtdMember 2022-12-31 0000887225 kep:MokganCoLtdMember 2022-12-31 0000887225 kep:GeumdaniCoLtdMember 2022-12-31 0000887225 kep:TeamKoreaCoLtdMember 2022-12-31 0000887225 kep:ChandownFoodCoLtdMember 2022-12-31 0000887225 kep:DaeyoungCoLtdMember 2022-12-31 0000887225 kep:SsangyongYoungweolPlantServiceEngineeringCoLtdMember 2022-12-31 0000887225 kep:ShinkwangEngineeringMember 2022-12-31 0000887225 kep:YooseungCoLtdMember 2022-12-31 0000887225 kep:ArariCoLtdMember 2022-12-31 0000887225 kep:ChoyangTechCoLtdMember 2022-12-31 0000887225 kep:InternationalPaintKoreaCoLtdMember 2022-12-31 0000887225 kep:EkCookwareCoLtdMember 2022-12-31 0000887225 kep:FinemetalCoLtdMember 2022-12-31 0000887225 kep:SteellifeCoLtdMember 2022-12-31 0000887225 kep:AjinKSBCoLtdMember 2022-12-31 0000887225 kep:TaeyanggasteelCoLtdMember 2022-12-31 0000887225 kep:HightechMnpCoLtdMember 2022-12-31 0000887225 kep:DongsungMulsanCoLtdMember 2022-12-31 0000887225 kep:RMKCoLtdMember 2022-12-31 0000887225 kep:DesignBeyondCo.LtdMember 2022-12-31 0000887225 kep:DecoeCo.LtdMember 2022-12-31 0000887225 kep:IrefarmCo.LtdMember 2022-12-31 0000887225 kep:MiraeIndustryCo.Ltd.Member 2022-12-31 0000887225 kep:WoojinFormtechCo.Ltd.Member 2022-12-31 0000887225 kep:MetalLinkInc.Co.Ltd.Member 2022-12-31 0000887225 kep:DaishinLogisticsCo.Ltd.Member 2022-12-31 0000887225 kep:WowTechCo.LtdMember 2022-12-31 0000887225 kep:JinsungEngineeringCo.LtdMember 2022-12-31 0000887225 kep:PoongLimIndustrialCo.Ltd.Member 2022-12-31 0000887225 kep:DaeSungGeotechCo.LtdMember 2022-12-31 0000887225 kep:SeohanFoodCo.Ltd.Member 2022-12-31 0000887225 kep:OwonEgCo.LtdMember 2022-12-31 0000887225 kep:YoungheungIndustryCo.Ltd.Member 2022-12-31 0000887225 kep:HyundaiTechCo.LtdMember 2022-12-31 0000887225 kep:NamhaeEcCo.LtdMember 2022-12-31 0000887225 kep:SinwaJkCo.LtdMember 2022-12-31 0000887225 kep:PipetecKoreaCo.LtdMember 2022-12-31 0000887225 kep:WorldPowerTechCo.LtdMember 2022-12-31 0000887225 kep:ClTechCo.Ltd.Member 2022-12-31 0000887225 kep:PbmAutoCo.Ltd.Member 2022-12-31 0000887225 kep:DaehyeonRecycleCo.LtdMember 2022-12-31 0000887225 kep:SungjinTechCo.Ltd.Member 2022-12-31 0000887225 kep:YonghoIndustryCo.LtdMember 2022-12-31 0000887225 kep:SungjinChemicalCo.Ltd.Member 2022-12-31 0000887225 kep:KcIndustryCo.LtdMember 2022-12-31 0000887225 kep:SungkwangTimberMember 2022-12-31 0000887225 kep:SamgongDevelopmentMember 2022-12-31 0000887225 kep:PyungsanSiCo.Ltd.Member 2022-12-31 0000887225 kep:AoneAlformCo.LtdMember 2022-12-31 0000887225 kep:IMHWAMember 2022-12-31 0000887225 kep:PTAdaroEnergyTbkMember 2022-12-31 0000887225 kep:DenisonMinesCorpMember 2022-12-31 0000887225 kep:EMnICoLtdMember 2022-12-31 0000887225 kep:FissionUraniumMember 2022-12-31 0000887225 kep:VitzosysCoLtdMember 2022-12-31 0000887225 kep:SangSanginIndustryCoLtdMember 2022-12-31 0000887225 kep:SungwonMember 2022-12-31 0000887225 kep:HwanYoungSteelMember 2022-12-31 0000887225 kep:IntellectualDiscoveryCo.Ltd.Member 2022-12-31 0000887225 kep:KSRemiconMember 2022-12-31 0000887225 kep:KyungDongMember 2022-12-31 0000887225 kep:BCONMember 2022-12-31 0000887225 kep:AceIntiAgriculturalMember 2022-12-31 0000887225 kep:NajinSteelMember 2022-12-31 0000887225 kep:JMCHeavyIndustriesMember 2022-12-31 0000887225 kep:ShinPyungMember 2022-12-31 0000887225 kep:KwangSungMember 2022-12-31 0000887225 kep:SamsungTechMember 2022-12-31 0000887225 kep:SevenvalleyJCMember 2022-12-31 0000887225 kep:HanYoungTechnologyMember 2022-12-31 0000887225 kep:YounilMetalMember 2022-12-31 0000887225 kep:ShinheungpetrolMember 2022-12-31 0000887225 kep:SeyangPrecisionIndMember 2022-12-31 0000887225 kep:KendaePrintingMember 2022-12-31 0000887225 kep:JOTechMember 2022-12-31 0000887225 kep:LKIndustryMember 2022-12-31 0000887225 kep:MirecoMember 2022-12-31 0000887225 kep:ElephantFriendsMember 2022-12-31 0000887225 kep:SungLimIndustrialMember 2022-12-31 0000887225 kep:MyungMember 2022-12-31 0000887225 kep:SolvusMember 2022-12-31 0000887225 kep:BeerYeastKoreaIncMember 2022-12-31 0000887225 kep:ListedEquitySecuritiesMember 2022-12-31 0000887225 kep:UnlistedEquitySecuritiesMember 2022-12-31 0000887225 ifrs-full:LaterThanTwoYearsAndNotLaterThanFiveYearsMember kep:NotDesignatedAsHedgingInstrumentTradingMember kep:GrossSettlementMember 2022-12-31 0000887225 ifrs-full:LaterThanFiveYearsMember kep:NotDesignatedAsHedgingInstrumentTradingMember kep:GrossSettlementMember 2022-12-31 0000887225 kep:NotDesignatedAsHedgingInstrumentTradingMember kep:GrossSettlementMember 2022-12-31 0000887225 kep:DesignatedAsHedgingInstrumentMember kep:GrossSettlementMember 2022-12-31 0000887225 ifrs-full:LaterThanFiveYearsMember kep:DesignatedAsHedgingInstrumentMember kep:GrossSettlementMember 2022-12-31 0000887225 ifrs-full:LaterThanFiveYearsMember kep:NotDesignatedAsHedgingInstrumentTradingMember kep:NetSettlementMember 2022-12-31 0000887225 ifrs-full:LaterThanTwoYearsAndNotLaterThanFiveYearsMember kep:NotDesignatedAsHedgingInstrumentTradingMember kep:NetSettlementMember 2022-12-31 0000887225 ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember kep:NotDesignatedAsHedgingInstrumentTradingMember kep:NetSettlementMember 2022-12-31 0000887225 ifrs-full:NotLaterThanOneYearMember kep:NotDesignatedAsHedgingInstrumentTradingMember kep:NetSettlementMember 2022-12-31 0000887225 ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember kep:DesignatedAsHedgingInstrumentMember kep:GrossSettlementMember 2022-12-31 0000887225 ifrs-full:NotLaterThanOneYearMember kep:DesignatedAsHedgingInstrumentMember kep:GrossSettlementMember 2022-12-31 0000887225 ifrs-full:LaterThanTwoYearsAndNotLaterThanFiveYearsMember kep:DesignatedAsHedgingInstrumentMember kep:GrossSettlementMember 2022-12-31 0000887225 kep:NotDesignatedAsHedgingInstrumentTradingMember kep:NetSettlementMember 2022-12-31 0000887225 ifrs-full:NotLaterThanOneYearMember kep:NotDesignatedAsHedgingInstrumentTradingMember kep:GrossSettlementMember 2022-12-31 0000887225 ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember kep:NotDesignatedAsHedgingInstrumentTradingMember kep:GrossSettlementMember 2022-12-31 0000887225 kep:ConstructionContractsMember 2022-12-31 0000887225 kep:OwnedByGovernmentMember kep:KoreanDevelopmentBankMember 2022-12-31 0000887225 ifrs-full:AccumulatedImpairmentMember 2022-12-31 0000887225 kep:Ud4mCoLtdMember 2022-12-31 0000887225 kep:YaksuessCoLtdMember 2022-12-31 0000887225 kep:SamcheokEcoMaterialsMember 2022-12-31 0000887225 kep:SeobusamboHighwayPhotovoltaicsMember 2022-12-31 0000887225 kep:KepcouhdeInc.Member 2022-12-31 0000887225 kep:DangjinEcoPowerCoLtdNewlyMember 2022-12-31 0000887225 kep:ForesightIberianSolarGroupHoldingSLMember 2022-12-31 0000887225 kep:EnergycoLLCMember 2022-12-31 0000887225 kep:Platformn.Co.LtdMember 2022-12-31 0000887225 kep:NepalWaterEnergyDevelopmentCompanyPrivateLimitedMember 2022-12-31 0000887225 kep:PulauIndahOmSdnBhdMember 2022-12-31 0000887225 kep:UnbilledRevenueMember 2022-12-31 0000887225 kep:PeriodTwoThousandAndTwentyOneMember kep:ThirdPlannedPeriodMember 2022-12-31 0000887225 kep:ThirdPlannedPeriodMember 2022-12-31 0000887225 kep:PeriodTwoThousandAndTwentyFiveMember kep:ThirdPlannedPeriodMember 2022-12-31 0000887225 kep:PeriodTwoThousandAndTwentyFourMember kep:ThirdPlannedPeriodMember 2022-12-31 0000887225 kep:PeriodTwoThousandAndTwentyThreeMember kep:ThirdPlannedPeriodMember 2022-12-31 0000887225 kep:PeriodTwoThousandAndTwentyTwoMember kep:ThirdPlannedPeriodMember 2022-12-31 0000887225 kep:GovernmentGrantsForSpecificBusinessProjects11Member 2022-12-31 0000887225 kep:GovernmentGrantsForSpecificBusinessProjects10Member 2022-12-31 0000887225 kep:GovernmentGrantsForSpecificBusinessProjects14Member 2022-12-31 0000887225 kep:GovernmentGrantsForSpecificBusinessProjects13Member 2022-12-31 0000887225 kep:GovernmentGrantsForSpecificBusinessProjects12Member 2022-12-31 0000887225 kep:GovernmentGrantsForSpecificBusinessProjects3Member 2022-12-31 0000887225 kep:GovernmentGrantsForSpecificBusinessProjects8Member 2022-12-31 0000887225 kep:GovernmentGrantsForSpecificBusinessProjects7Member 2022-12-31 0000887225 kep:GovernmentGrantsForSpecificBusinessProjects6Member 2022-12-31 0000887225 kep:GovernmentGrantsForSpecificBusinessProjects5Member 2022-12-31 0000887225 kep:GovernmentGrantsForSpecificBusinessProjects4Member 2022-12-31 0000887225 kep:GovernmentGrantsForSpecificBusinessProjects9Member 2022-12-31 0000887225 kep:GovernmentGrantsForSpecificBusinessProjects2Member 2022-12-31 0000887225 kep:GovernmentGrantsForSpecificBusinessProjects1Member 2022-12-31 0000887225 kep:AdjustmentOfPresentValueDiscountMember ifrs-full:TradeReceivablesMember 2022-12-31 0000887225 kep:AdjustmentOfPresentValueDiscountMember kep:OtherReceivablesMember 2022-12-31 0000887225 kep:OtherReceivablesMember 2022-12-31 0000887225 ifrs-full:GrossCarryingAmountMember ifrs-full:TradeReceivablesMember 2022-12-31 0000887225 ifrs-full:AccumulatedImpairmentMember ifrs-full:TradeReceivablesMember 2022-12-31 0000887225 ifrs-full:AccumulatedImpairmentMember kep:OtherReceivablesMember 2022-12-31 0000887225 ifrs-full:GrossCarryingAmountMember kep:OtherReceivablesMember 2022-12-31 0000887225 ifrs-full:TradeReceivablesMember 2022-12-31 0000887225 kep:AdjustmentOfPresentValueDiscountMember 2022-12-31 0000887225 ifrs-full:GrossCarryingAmountMember kep:OtherReceivablesOthersMember 2022-12-31 0000887225 kep:OtherReceivablesOthersMember 2022-12-31 0000887225 ifrs-full:AccumulatedImpairmentMember kep:NonTradeReceivablesMember 2022-12-31 0000887225 kep:AdjustmentOfPresentValueDiscountMember kep:NonTradeReceivablesMember 2022-12-31 0000887225 kep:NonTradeReceivablesMember 2022-12-31 0000887225 ifrs-full:GrossCarryingAmountMember kep:AccruedIncomeReceivableMember 2022-12-31 0000887225 ifrs-full:GrossCarryingAmountMember kep:DepositsMember 2022-12-31 0000887225 ifrs-full:AccumulatedImpairmentMember kep:DepositsMember 2022-12-31 0000887225 kep:AdjustmentOfPresentValueDiscountMember kep:OtherReceivablesOthersMember 2022-12-31 0000887225 kep:AdjustmentOfPresentValueDiscountMember ifrs-full:LeaseReceivablesMember 2022-12-31 0000887225 ifrs-full:AccumulatedImpairmentMember ifrs-full:LeaseReceivablesMember 2022-12-31 0000887225 ifrs-full:GrossCarryingAmountMember ifrs-full:LeaseReceivablesMember 2022-12-31 0000887225 kep:DepositsMember 2022-12-31 0000887225 kep:AdjustmentOfPresentValueDiscountMember kep:DepositsMember 2022-12-31 0000887225 ifrs-full:AccumulatedImpairmentMember kep:OtherReceivablesOthersMember 2022-12-31 0000887225 ifrs-full:GrossCarryingAmountMember kep:NonTradeReceivablesMember 2022-12-31 0000887225 ifrs-full:AccumulatedImpairmentMember kep:AccruedIncomeReceivableMember 2022-12-31 0000887225 kep:AdjustmentOfPresentValueDiscountMember kep:AccruedIncomeReceivableMember 2022-12-31 0000887225 ifrs-full:LeaseReceivablesMember 2022-12-31 0000887225 kep:AccruedIncomeReceivableMember 2022-12-31 0000887225 kep:BoimCombinedHeatAndPowerGenerationCo.Ltd.FormerlyDayoneEnergyCo.Ltd.Member 2022-12-31 0000887225 kep:PulauIndahOmSdn.BhdMember ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 kep:SeobusamboHighwayPhotovoltaicsCo.Ltd.Member ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 kep:TrumbullAssetManagementLlcMember ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 kep:TaebaekGuinemiWindPowerMember ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 kep:DaeguGreenPowerJointVenturesMember 2022-12-31 0000887225 kep:SaemangeumSolarPowerCoLtdMember ifrs-full:TopOfRangeMember 2022-12-31 0000887225 kep:SUNMEXRENOVABLESSADECVMember ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 kep:ShuweihatAsiaOperationMaintenanceCompanyMember ifrs-full:BottomOfRangeMember 2022-12-31 0000887225 kep:WaterburyLakeUraniumLPMember ifrs-full:TopOfRangeMember 2022-12-31 0000887225 kep:NawahEnergyMember ifrs-full:TopOfRangeMember 2022-12-31 0000887225 kep:OtherReceivablesMember ifrs-full:FinancialAssetsImpairedMember kep:NotLaterThanTwoMonthsMember 2022-12-31 0000887225 ifrs-full:FinancialAssetsImpairedMember ifrs-full:TradeReceivablesMember ifrs-full:LaterThanOneYearMember 2022-12-31 0000887225 ifrs-full:FinancialAssetsImpairedMember ifrs-full:TradeReceivablesMember 2022-12-31 0000887225 ifrs-full:FinancialAssetsImpairedMember ifrs-full:TradeReceivablesMember ifrs-full:LaterThanThreeMonthsAndNotLaterThanFourMonthsMember 2022-12-31 0000887225 ifrs-full:FinancialAssetsImpairedMember ifrs-full:TradeReceivablesMember kep:LaterThanFourMonthsAndNotLaterThanOneYearMember 2022-12-31 0000887225 ifrs-full:FinancialAssetsImpairedMember ifrs-full:TradeReceivablesMember kep:NotLaterThanTwoMonthsMember 2022-12-31 0000887225 ifrs-full:FinancialAssetsImpairedMember ifrs-full:TradeReceivablesMember ifrs-full:LaterThanTwoMonthsAndNotLaterThanThreeMonthsMember 2022-12-31 0000887225 ifrs-full:FinancialAssetsNeitherPastDueNorImpairedMember ifrs-full:TradeReceivablesMember 2022-12-31 0000887225 kep:OtherReceivablesMember ifrs-full:FinancialAssetsImpairedMember ifrs-full:LaterThanTwoMonthsAndNotLaterThanThreeMonthsMember 2022-12-31 0000887225 kep:OtherReceivablesMember ifrs-full:FinancialAssetsImpairedMember ifrs-full:LaterThanThreeMonthsAndNotLaterThanFourMonthsMember 2022-12-31 0000887225 kep:OtherReceivablesMember ifrs-full:FinancialAssetsImpairedMember ifrs-full:LaterThanOneYearMember 2022-12-31 0000887225 kep:OtherReceivablesMember ifrs-full:FinancialAssetsImpairedMember kep:LaterThanFourMonthsAndNotLaterThanOneYearMember 2022-12-31 0000887225 kep:OtherReceivablesMember ifrs-full:FinancialAssetsNeitherPastDueNorImpairedMember 2022-12-31 0000887225 kep:OtherReceivablesMember ifrs-full:FinancialAssetsImpairedMember 2022-12-31 0000887225 kep:CashAndCashEquivalentsMember ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember 2022-12-31 0000887225 ifrs-full:FinancialAssetsAtAmortisedCostCategoryMember ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember 2022-12-31 0000887225 ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember 2022-12-31 0000887225 kep:DerivativeFinancialInstrumentsAssetsMember ifrs-full:AtFairValueMember kep:DesignatedAsHedgingInstrumentMember 2022-12-31 0000887225 kep:LongTermFinancialInstrumentsCategoryMember ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember 2022-12-31 0000887225 ifrs-full:FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:AtFairValueMember 2022-12-31 0000887225 ifrs-full:AtFairValueMember kep:NonDesignatedMember kep:DerivativeFinancialInstrumentsAssetsMember 2022-12-31 0000887225 ifrs-full:LoansAndReceivablesCategoryMember ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember 2022-12-31 0000887225 ifrs-full:TradeReceivablesMember ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember 2022-12-31 0000887225 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember ifrs-full:AtFairValueMember 2022-12-31 0000887225 kep:ShortTermFinancialInstrumentsCategoryMember ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember 2022-12-31 0000887225 kep:SecuredBorrowingsMember ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember 2022-12-31 0000887225 kep:UnsecuredBondMember ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember 2022-12-31 0000887225 ifrs-full:LeaseLiabilitiesMember ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember 2022-12-31 0000887225 kep:BankOverdraftMember ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember 2022-12-31 0000887225 kep:DerivativeFinancialInstrumentsLiabilitiesMember ifrs-full:AtFairValueMember kep:NonDesignatedMember 2022-12-31 0000887225 kep:DerivativeFinancialInstrumentsLiabilitiesMember ifrs-full:AtFairValueMember kep:DesignatedAsHedgingInstrumentMember 2022-12-31 0000887225 kep:UnsecuredBorrowingsMember ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember 2022-12-31 0000887225 kep:TradeAndOtherPayablesMember ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember 2022-12-31 0000887225 kep:LocalShortTermBorrowings2Member 2022-12-31 0000887225 kep:LocalBankOverdraft1Member 2022-12-31 0000887225 kep:ForeignShortTermBorrowings3Member 2022-12-31 0000887225 kep:LocalShortTermBorrowings1Member 2022-12-31 0000887225 kep:ForeignShortTermBorrowings2Member 2022-12-31 0000887225 kep:ArbitrationWithWestingHouseElectricCompanyLlcToKoreanCommercialArbitrationBoardMember 2022-12-31 0000887225 kep:HybridBondsMember 2022-12-31 0000887225 kep:KoreaGasCorporationMember 2022-12-31 0000887225 kep:OtherLongtermAndShorttermFinancialInstrumentsMember kep:OtherFinancialAssetsMember 2022-12-31 0000887225 kep:LongtermDepositsMember kep:OtherFinancialAssetsMember 2022-12-31 0000887225 kep:CDMember kep:OtherFinancialAssetsMember 2022-12-31 0000887225 kep:ProvisionsForEmployeeBenefitsMember 2022-12-31 0000887225 ifrs-full:LegalProceedingsProvisionMember 2022-12-31 0000887225 kep:PowerPlantRegionalSupportProgramProvisionsMember 2022-12-31 0000887225 kep:OtherRecoveryProvisionsMember 2022-12-31 0000887225 kep:ProvisionsForNuclearPlantsRestorationMember 2022-12-31 0000887225 kep:SpentFuelRecoveryProvisionsMember 2022-12-31 0000887225 kep:WasteRecoveryProvisionsMember 2022-12-31 0000887225 kep:PcbsRecoveryProvisionsMember 2022-12-31 0000887225 ifrs-full:MiscellaneousOtherProvisionsMember 2022-12-31 0000887225 kep:TransmissionRegionalSupportProgramProvisionsMember 2022-12-31 0000887225 ifrs-full:FinancialGuaranteeContractsMember 2022-12-31 0000887225 kep:ProvisionsForRpsMember 2022-12-31 0000887225 kep:ProvisionsForGreenhouseGasEmissionsObligationsMember 2022-12-31 0000887225 ifrs-full:ActuarialAssumptionOfDiscountRatesMember 2022-12-31 0000887225 ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember 2022-12-31 0000887225 kep:FinanceLeaseReceivablesMember 2022-12-31 0000887225 ifrs-full:OrdinarySharesMember 2023-12-31 0000887225 ifrs-full:CurrencyRiskMember 2023-12-31 0000887225 kep:LsgHydroPowerLimitedMember 2023-12-31 0000887225 kep:SolarvaderCoLtdMember 2023-12-31 0000887225 kep:YeongYangCorporationCo.Ltd.Member 2023-12-31 0000887225 kep:YeongYangInnovationCoLtdMember 2023-12-31 0000887225 kep:KepcoForMaintenanceCompanyMember 2023-12-31 0000887225 kep:KepcoHoldingCompanyMember 2023-12-31 0000887225 kep:JWindFirstLlcMember 2023-12-31 0000887225 kep:DigitalInnovationGrowthFundMember 2023-12-31 0000887225 kep:ChileSolarJVSpAMember 2023-12-31 0000887225 kep:KEPCOKPSSouthAfricaPtyLtdMember 2023-12-31 0000887225 kep:KSOLARSHINANCoLtdMember 2023-12-31 0000887225 kep:HaenanumEnergyFundMember 2023-12-31 0000887225 kep:PajuEcoenergyMember 2023-12-31 0000887225 kep:GuamUkuduPowerLLCMember 2023-12-31 0000887225 kep:KPSPartnersCoLtdMember 2023-12-31 0000887225 kep:KEPCOECServiceCoLtdMember 2023-12-31 0000887225 kep:KhnpChileSpaMember 2023-12-31 0000887225 kep:MohaSolarCoLtdMember 2023-12-31 0000887225 kep:OgiriSolarPowerCoLtdMember 2023-12-31 0000887225 kep:KHNPUSALLCMember 2023-12-31 0000887225 kep:YeongYangApollonPhotovoltaicCo.Ltd.Member 2023-12-31 0000887225 kep:KOMIPOVanphongPowerServiceLLCMember 2023-12-31 0000887225 kep:EnergyInnovationFundIMember 2023-12-31 0000887225 kep:KospoTrumbullLlcMember 2023-12-31 0000887225 kep:ChangjukWindPowerMember 2023-12-31 0000887225 kep:KaPowerLimitedMember 2023-12-31 0000887225 kep:WesternPowerChanggiSolarCoLtdMember 2023-12-31 0000887225 kep:EwpAustraliaPty.LtdMember 2023-12-31 0000887225 kep:ColumboolaSolarFarmHoldCoPty.Ltd.Member 2023-12-31 0000887225 kep:YeongdeokSunriseWindPowerCo.Ltd.Member 2023-12-31 0000887225 kep:KowepoEuropeB.v.Member 2023-12-31 0000887225 kep:JeongamWindPowerMember 2023-12-31 0000887225 kep:YeongYangHorusPhotovoltaicCoLtdMember 2023-12-31 0000887225 kep:KoenBioCo.Ltd.Member 2023-12-31 0000887225 kep:KomipoIberianSolarGroupS.l.u.Member 2023-12-31 0000887225 kep:YeongYangSolarManagementCoLtdMember 2023-12-31 0000887225 kep:KowepoHoldingLimitedMember 2023-12-31 0000887225 kep:KEPCONetherlandsS3BVMember 2023-12-31 0000887225 kep:EWPAmericaMember 2023-12-31 0000887225 kep:KEPCOMiddleEastHoldingCompanyMember 2023-12-31 0000887225 kep:KEPCOBylongAustraliaMember 2023-12-31 0000887225 kep:KEPCOHoldingsdeMexicoMember 2023-12-31 0000887225 kep:KEPCOPlantServiceEngineeringMember 2023-12-31 0000887225 kep:KEPCOKDNMember 2023-12-31 0000887225 kep:KEPCOPhilippinesCorporationMember 2023-12-31 0000887225 kep:KOMIPOGlobalPteMember 2023-12-31 0000887225 kep:KoreaHydroNuclearPowerMember 2023-12-31 0000887225 kep:KoreaSoutheastPowerMember 2023-12-31 0000887225 kep:KEPCOInternationalPhilippinesMember 2023-12-31 0000887225 kep:KEPCOInternationalHongKongMember 2023-12-31 0000887225 kep:KEPCOPhilippinesHoldingsMember 2023-12-31 0000887225 kep:KEPCOIlijanCorporationMember 2023-12-31 0000887225 kep:KEPCOShanxiInternationalMember 2023-12-31 0000887225 kep:GyeongjuWindPowerMember 2023-12-31 0000887225 kep:QatranaElectricPowerCompanyMember 2023-12-31 0000887225 kep:KSTElectricPowerCompanyMember 2023-12-31 0000887225 kep:KOWEPOInternationalCorporationMember 2023-12-31 0000887225 kep:GyeonggiGreenEnergyMember 2023-12-31 0000887225 kep:KEPCOAustraliaMember 2023-12-31 0000887225 kep:KOWEPOAustraliaMember 2023-12-31 0000887225 kep:PTTanggamusElectricPowerMember 2023-12-31 0000887225 kep:KOSPOAustraliaMember 2023-12-31 0000887225 kep:KoreaWaterburyUraniumLimitedPartnershipMember 2023-12-31 0000887225 kep:PTKOMIPOPembangkitanJawaBaliMember 2023-12-31 0000887225 kep:KNFCanadaEnergyLimitedMember 2023-12-31 0000887225 kep:KOSEPAustraliaMember 2023-12-31 0000887225 kep:KOMIPOAustraliaMember 2023-12-31 0000887225 kep:KHNPCanadaEnergyMember 2023-12-31 0000887225 kep:KEPCOEnergyServiceCompanyMember 2023-12-31 0000887225 kep:PTCirebonPowerServiceMember 2023-12-31 0000887225 kep:KOSPOJordanMember 2023-12-31 0000887225 kep:EWPBarbados1SRLMember 2023-12-31 0000887225 kep:KOMIPOAmericaMember 2023-12-31 0000887225 kep:KEPCONetherlandsJ3BVMember 2023-12-31 0000887225 kep:KoreaOffshoreWindPowerMember 2023-12-31 0000887225 kep:KEPCOGansuInternationalMember 2023-12-31 0000887225 kep:KEPCONeimengguInternationalMember 2023-12-31 0000887225 kep:KEPCONetherlandsBVMember 2023-12-31 0000887225 kep:PTEWPIndonesiaMember 2023-12-31 0000887225 kep:KoreaMidlandPowerMember 2023-12-31 0000887225 kep:KoreaSouthernPowerMember 2023-12-31 0000887225 kep:KEPCOEngineeringConstructionCompanyMember 2023-12-31 0000887225 kep:KoreaWesternPowerMember 2023-12-31 0000887225 kep:KoreaEastWestPowerMember 2023-12-31 0000887225 kep:KEPCONuclearFuelMember 2023-12-31 0000887225 kep:KOSPOChileSpAMember 2023-12-31 0000887225 kep:PTKOWEPOSumselOperationandMaintenanceServicesMember 2023-12-31 0000887225 kep:GlobalEnergyPioneerBVMember 2023-12-31 0000887225 kep:GlobalOnePioneerBVMember 2023-12-31 0000887225 kep:KEPCOEnergySolutionMember 2023-12-31 0000887225 kep:SolarSchoolPlantMember 2023-12-31 0000887225 kep:KOMIPOBylongMember 2023-12-31 0000887225 kep:JejuHanlimOffshoreWindCoMember 2023-12-31 0000887225 kep:PTSiborpaEcoPowerMember 2023-12-31 0000887225 kep:PTKoreaEnergyIndonesiaMember 2023-12-31 0000887225 kep:TamraOffshoreWindPowerMember 2023-12-31 0000887225 kep:KOAKPowerLimitedMember 2023-12-31 0000887225 kep:KOENServiceCo.Ltd.Member 2023-12-31 0000887225 kep:KOMIPOServiceCo.Ltd.Member 2023-12-31 0000887225 kep:EWPServiceCo.Ltd.Member 2023-12-31 0000887225 kep:KNFPartnersMember 2023-12-31 0000887225 kep:KOSPOUSAMember 2023-12-31 0000887225 kep:NambuUSAMember 2023-12-31 0000887225 kep:FirstkeepersMember 2023-12-31 0000887225 kep:KOSPOBylongMember 2023-12-31 0000887225 kep:EWPBylongMember 2023-12-31 0000887225 kep:KOWEPOLaoInternationalMember 2023-12-31 0000887225 kep:IncheonFuelCellCo.Ltd.Member 2023-12-31 0000887225 kep:KOENBylongMember 2023-12-31 0000887225 kep:EnergyNewIndustrySpecializedInvestmentPrivateInvestmentTrustMember 2023-12-31 0000887225 kep:KOSPOPowerServicesLimitadaMember 2023-12-31 0000887225 kep:KOSPOYoungnamPowerMember 2023-12-31 0000887225 kep:FujeijWindPowerCompanyMember 2023-12-31 0000887225 kep:HeeMangSunlightPowerMember 2023-12-31 0000887225 kep:MangilaoIntermediateHoldingsMember 2023-12-31 0000887225 kep:PT.KOMIPOEnergyIndonesiaMember 2023-12-31 0000887225 kep:KOWEPOServiceCo.Ltd.Member 2023-12-31 0000887225 kep:KOSPOServiceCo.LtdMember 2023-12-31 0000887225 kep:KOMIPOEuropeBVMember 2023-12-31 0000887225 kep:ChitoseSolarPowerPlantMember 2023-12-31 0000887225 kep:KEPCOCSCMember 2023-12-31 0000887225 kep:KOLATSpAMember 2023-12-31 0000887225 kep:KEPCOCaliforniaLLCMember 2023-12-31 0000887225 kep:KEPCOMojaveHoldingsLLCMember 2023-12-31 0000887225 kep:KEPCOMCSMember 2023-12-31 0000887225 kep:SecutecMember 2023-12-31 0000887225 kep:KEPCOLGCNSMangilaoHoldingsMember 2023-12-31 0000887225 kep:MangilaoInvestmentMember 2023-12-31 0000887225 kep:KEPCOLGCNSMangilaoSolarMember 2023-12-31 0000887225 kep:KOWEPOBylongMember 2023-12-31 0000887225 kep:KEPCOFMSMember 2023-12-31 0000887225 kep:SEGreenEnergyMember 2023-12-31 0000887225 kep:MiraPowerLimitedMember 2023-12-31 0000887225 kep:KOSEPMaterialMember 2023-12-31 0000887225 kep:CommerceandIndustryEnergyMember 2023-12-31 0000887225 kep:KEPCOKPSPhilippinesCorpMember 2023-12-31 0000887225 ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember ifrs-full:GrossCarryingAmountMember 2023-12-31 0000887225 ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember ifrs-full:GrossCarryingAmountMember 2023-12-31 0000887225 ifrs-full:NotLaterThanOneYearMember ifrs-full:GrossCarryingAmountMember 2023-12-31 0000887225 ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember ifrs-full:GrossCarryingAmountMember 2023-12-31 0000887225 ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember ifrs-full:GrossCarryingAmountMember 2023-12-31 0000887225 ifrs-full:LaterThanFiveYearsMember ifrs-full:GrossCarryingAmountMember 2023-12-31 0000887225 ifrs-full:GrossCarryingAmountMember 2023-12-31 0000887225 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember ifrs-full:FinancialAssetsAtFairValueMember 2023-12-31 0000887225 ifrs-full:FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember ifrs-full:FinancialAssetsAtFairValueMember 2023-12-31 0000887225 kep:DerivativeAssetsApplyingHedgeAccountingCategoryMember 2023-12-31 0000887225 ifrs-full:FinancialAssetsAtAmortisedCostCategoryMember ifrs-full:FinancialAssetsAtAmortisedCostMember 2023-12-31 0000887225 ifrs-full:HedgingInstrumentsMember 2023-12-31 0000887225 ifrs-full:FinancialLiabilitiesAtAmortisedCostCategoryMember 2023-12-31 0000887225 ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember 2023-12-31 0000887225 kep:LoansHousingMember 2023-12-31 0000887225 kep:OtherLoansMember 2023-12-31 0000887225 kep:LoansTuitionMember 2023-12-31 0000887225 kep:ValuationAllowanceAdjustmentsMember 2023-12-31 0000887225 ifrs-full:GrossCarryingAmountMember 2023-12-31 0000887225 ifrs-full:LaterThanFiveYearsMember 2023-12-31 0000887225 ifrs-full:LaterThanOneYearAndNotLaterThanFiveYearsMember 2023-12-31 0000887225 ifrs-full:NotLaterThanOneYearMember 2023-12-31 0000887225 ifrs-full:CorporateLoansMember ifrs-full:GrossCarryingAmountMember 2023-12-31 0000887225 ifrs-full:CorporateLoansMember 2023-12-31 0000887225 ifrs-full:CorporateLoansMember kep:PresentValueDiscountMember 2023-12-31 0000887225 kep:ShortTermFinancialInstrumentsMember 2023-12-31 0000887225 kep:OtherFinancialAssetsMember 2023-12-31 0000887225 ifrs-full:CorporateLoansMember ifrs-full:AccumulatedImpairmentMember 2023-12-31 0000887225 kep:S4HANAERPlicenseMember ifrs-full:ComputerSoftwareMember 2023-12-31 0000887225 ifrs-full:OtherIntangibleAssetsMember kep:OccupancyAndUseOfPublicWatersMember 2023-12-31 0000887225 kep:GreenhouseGasEmissionsRightsMember ifrs-full:OtherIntangibleAssetsMember 2023-12-31 0000887225 ifrs-full:ServiceConcessionRightsMember ifrs-full:OtherIntangibleAssetsMember 2023-12-31 0000887225 kep:ContributionsToARPNRCDCMember ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember 2023-12-31 0000887225 kep:RightUseElectricityGasSupplyFacilityCommunityDistrictSongdoMember kep:UsageRightsOfDonatedAssetsAndOtherMember 2023-12-31 0000887225 ifrs-full:MiningRightsMember kep:MiningRightOfBylongMineMember 2023-12-31 0000887225 kep:SejongHaengbogdosiSharingChargeMember kep:UsageRightsOfDonatedAssetsAndOtherMember 2023-12-31 0000887225 kep:OwnedByOthersMember 2023-12-31 0000887225 kep:OwnedByGovernmentMember 2023-12-31 0000887225 ifrs-full:FinancialAssetsAtAmortisedCostCategoryMember 2023-12-31 0000887225 ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember 2023-12-31 0000887225 ifrs-full:FinancialGuaranteeContractsMember 2023-12-31 0000887225 kep:DesignatedAsHedgingInstrumentMember 2023-12-31 0000887225 ifrs-full:LoansAndReceivablesCategoryMember 2023-12-31 0000887225 kep:CashAndCashEquivalentsMember 2023-12-31 0000887225 ifrs-full:FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember 2023-12-31 0000887225 kep:NonDesignatedMember 2023-12-31 0000887225 kep:LongtermshorttermFinancialInstrumentsMember 2023-12-31 0000887225 kep:TradeAndOtherReceivablesMember 2023-12-31 0000887225 ifrs-full:FloatingInterestRateMember 2023-12-31 0000887225 ifrs-full:LaterThanTwoYearsAndNotLaterThanFiveYearsMember 2023-12-31 0000887225 ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember 2023-12-31 0000887225 ifrs-full:Level3OfFairValueHierarchyMember ifrs-full:AtFairValueMember 2023-12-31 0000887225 ifrs-full:Level2OfFairValueHierarchyMember ifrs-full:AtFairValueMember 2023-12-31 0000887225 ifrs-full:AtFairValueMember 2023-12-31 0000887225 ifrs-full:Level1OfFairValueHierarchyMember ifrs-full:AtFairValueMember 2023-12-31 0000887225 kep:LitigationAsTheDefendantMember 2023-12-31 0000887225 kep:LitigationAsThePlaintiffMember 2023-12-31 0000887225 kep:CannotBePresentlyDeterminedMaturityMember 2023-12-31 0000887225 ifrs-full:CurrencySwapContractMember kep:NotDesignatedAsHedgingInstrumentMember 2023-12-31 0000887225 ifrs-full:CurrencySwapContractMember 2023-12-31 0000887225 ifrs-full:ForwardContractMember kep:NotDesignatedAsHedgingInstrumentMember 2023-12-31 0000887225 ifrs-full:CurrencySwapContractMember kep:DesignatedAsHedgingInstrumentMember 2023-12-31 0000887225 ifrs-full:InterestRateSwapContractMember 2023-12-31 0000887225 ifrs-full:OptionContractMember kep:NotDesignatedAsHedgingInstrumentMember 2023-12-31 0000887225 ifrs-full:InterestRateSwapContractMember kep:DesignatedAsHedgingInstrumentMember 2023-12-31 0000887225 ifrs-full:InterestRateSwapContractMember kep:NotDesignatedAsHedgingInstrumentMember 2023-12-31 0000887225 ifrs-full:LandMember ifrs-full:AtFairValueMember 2023-12-31 0000887225 ifrs-full:CarryingAmountMember 2023-12-31 0000887225 ifrs-full:BuildingsMember ifrs-full:CarryingAmountMember 2023-12-31 0000887225 ifrs-full:BuildingsMember ifrs-full:AtFairValueMember 2023-12-31 0000887225 ifrs-full:LandMember ifrs-full:CarryingAmountMember 2023-12-31 0000887225 kep:SystemStabilizationEssEquipmentHamyangSsType1Member 2023-12-31 0000887225 kep:BoryeongNewComplexUnit1ConstructionProjectMember 2023-12-31 0000887225 kep:Other36ContractsMember 2023-12-31 0000887225 kep:SystemStabilizationEssEquipmentYeongcheonSsType1Member 2023-12-31 0000887225 kep:SystemStabilizationEssEquipmentShinnamwonSsType1Member 2023-12-31 0000887225 kep:PurchaseOfCablePvc1c2000sq87732mAndOthersEulwangboonkiMember 2023-12-31 0000887225 kep:ConstructionOfSaeulUnits34Member 2023-12-31 0000887225 kep:PurchaseOfCableTrCnceWAl1c400sq2175300mUnitPriceContractMember 2023-12-31 0000887225 kep:PurchaseOfGasTurbineAndTurbineEquipmentOfGimpoCombinedHeatAndPowerPlantMember 2023-12-31 0000887225 kep:ServiceOfDesigningTaeanUnits910Member 2023-12-31 0000887225 kep:PurchaseOfMainMachineForBoryeongNewComplexUnit1Member 2023-12-31 0000887225 kep:PurchaseOfEquipmentsForTheConstructionProjectOfBoryeongIndoorCoalStorageYardMember 2023-12-31 0000887225 kep:PurchaseOfCableTrCnceW1c600sq377000mUnitPriceContractMember 2023-12-31 0000887225 kep:PurchaseOfMainMachineForJejuLngCombinedMember 2023-12-31 0000887225 kep:PurchaseOfHeatRecoveryBoilerAndAccessoriesForGumiNaturalGasPowerPlantMember 2023-12-31 0000887225 kep:PurchaseOfSteamTurbineHrsgAndPowerBlockOfGimpoCombinedHeatAndPowerPlantMember 2023-12-31 0000887225 kep:PurchaseofGIS362KV6300A63KA23CBYoungseoSSMember 2023-12-31 0000887225 kep:PurchaseOfCablePvc1c2500sq100548mAndOthersKyunginConstructionMember 2023-12-31 0000887225 kep:PurchaseOfGis362kv6300a63kaType19ShinyangsanSsMember 2023-12-31 0000887225 kep:PurchaseOfGasTurbinesSteamTurbinesAndAccessoriesForGumiNaturalGasPowerPlantMember 2023-12-31 0000887225 kep:PurchaseOfCablePvc1c2500sq57868mAndOthersGodukSeoansungMember 2023-12-31 0000887225 kep:PurchaseOfGis362kv6300a63kaType18WolsungSyMember 2023-12-31 0000887225 kep:PurchaseOfCablePvc1c2000sq5862mAndOthersBaekunGwangyanghangMember 2023-12-31 0000887225 kep:ConcretePole10mGeneralPurpose350kgf126948EaAndFiveOtherEquipmentsUnitPriceContractMember 2023-12-31 0000887225 kep:PurchaseOfCableFrCncoW1c325sq672300mUnitPriceContractMember 2023-12-31 0000887225 kep:PurchaseOfCableTrCnceW1c325sq1342000mUnitPriceContractMember 2023-12-31 0000887225 kep:PurchaseOfGis362kv6300a63ka25cbMigeumSsMember 2023-12-31 0000887225 kep:ConstructionOfGimpoCombinedHeatAndPowerPlantMember 2023-12-31 0000887225 kep:PurchaseofGIS362KV6300A63KA27CBKwangyangSSMember 2023-12-31 0000887225 kep:PurchaseofcablePVC1C2000SQ153000MandothersShinBupyungYoungseoMember 2023-12-31 0000887225 kep:ConstructionOfShinhanulUnits34Member 2023-12-31 0000887225 kep:SystemStabilizationEssEquipmentBubukSsType1Member 2023-12-31 0000887225 kep:ConcretePole10mGeneralPurpose500kgf111000EaAndFourOtherEquipmentsMember 2023-12-31 0000887225 kep:ConstructionOfShinhanulUnits12Member 2023-12-31 0000887225 kep:SystemStabilizationEssEquipmentYesanSsType1Member 2023-12-31 0000887225 kep:AdvancedEtypeLowVoltageElectronicWatthourMeter1311552EaMember 2023-12-31 0000887225 kep:PurchaseofcablePVC1C2500SQ103374MandothersBukdangjinShintangjungMember 2023-12-31 0000887225 kep:PurchaseOfHadongThermalPowerIndoorCarboniferousPlantMember 2023-12-31 0000887225 kep:PurchaseOfPhase2PowerGenerationFacilityForYeongwolFuelCellsMember 2023-12-31 0000887225 kep:PurchaseOfFuelCellPowerGenerationFacilitiesForTheFifthStageOfShinincheonHeadquartersMember 2023-12-31 0000887225 kep:PurchaseMainEquipmentNamjejuMember 2023-12-31 0000887225 kep:PurchaseOfMainEquipmentForShinsejongCombinedThermalPowerPlantMember 2023-12-31 0000887225 kep:InstallationOfNaturalGasSupplyFacilityAtGumiNaturalGasPowerPlantMember 2023-12-31 0000887225 kep:ConstructionOfGumiNaturalGasPowerPlantMember 2023-12-31 0000887225 kep:PurchaseofcoalhandlingmachineforconstructionofSamcheokunits12Member 2023-12-31 0000887225 kep:ForeignInvestorsMember 2023-12-31 0000887225 kep:KoreaDevelopmentBankMember 2023-12-31 0000887225 kep:GovernmentOfTheRepublicOfKoreaMember 2023-12-31 0000887225 kep:OtherShareholdersMember 2023-12-31 0000887225 kep:BeneficiaryCertificateMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember 2023-12-31 0000887225 ifrs-full:DerivativesMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossDesignatedUponInitialRecognitionCategoryMember 2023-12-31 0000887225 ifrs-full:OtherEquitySecuritiesMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember 2023-12-31 0000887225 kep:OtherFinancialAssetsAtFairValueThroughProfitOrLossMember ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember 2023-12-31 0000887225 ifrs-full:GrossCarryingAmountMember kep:FinancialAssetsAtAmortisedCostOthersMember 2023-12-31 0000887225 kep:FinancialAssetsAtAmortisedCostOthersMember 2023-12-31 0000887225 ifrs-full:LoansToGovernmentMember ifrs-full:GrossCarryingAmountMember 2023-12-31 0000887225 ifrs-full:LoansToGovernmentMember 2023-12-31 0000887225 ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 ifrs-full:TopOfRangeMember 2023-12-31 0000887225 kep:ForeignShortTermBorrowings1Member 2023-12-31 0000887225 kep:LocalShortTermBorrowings1Member ifrs-full:TopOfRangeMember 2023-12-31 0000887225 kep:LocalShortTermBorrowings1Member ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 kep:KoreaGasCorporationMember 2023-12-31 0000887225 kep:GoseongGreenPowerMember 2023-12-31 0000887225 kep:KPEGreenEnergyCoLtdMember 2023-12-31 0000887225 kep:CheongjuEcoParkMember 2023-12-31 0000887225 kep:SeokmunEnergyMember 2023-12-31 0000887225 kep:NaepoGreenEnergyMember 2023-12-31 0000887225 kep:ChuncheonEnergyMember 2023-12-31 0000887225 kep:BoimCombinedHeatAndPowerGenerationCo.Ltd.Member 2023-12-31 0000887225 kep:PyeongchangWindPowerMember 2023-12-31 0000887225 kep:KEPCOLebanonSARLMember 2023-12-31 0000887225 kep:HaemodumSolarCoLtdMember 2023-12-31 0000887225 kep:YeongamSolarPowerCoLtdMember 2023-12-31 0000887225 kep:EnelXMidlandPhotovoltaicLlcMember 2023-12-31 0000887225 kep:GeumsungsanWindPowerMember 2023-12-31 0000887225 kep:Cheong-SongNoraesanWindPowerCoLtdMember 2023-12-31 0000887225 kep:DangjinEcoPowerMember 2023-12-31 0000887225 kep:HapcheonFloatingPhotovoltaicPowerPlantIncMember 2023-12-31 0000887225 kep:BusanIndustrialSolarPowerMember 2023-12-31 0000887225 kep:YeonggwangWindPowerMember 2023-12-31 0000887225 kep:BusanShinhoSolarPowerMember 2023-12-31 0000887225 kep:DaesanGreenEnergyCoLtdMember 2023-12-31 0000887225 kep:YeonggwangbaeksuWindPowerMember 2023-12-31 0000887225 kep:CheongnaEnergyMember 2023-12-31 0000887225 kep:TwentySixJointVenturesOverseasMember 2023-12-31 0000887225 kep:DaeryunPowerMember 2023-12-31 0000887225 kep:GangneungEcoPowerMember 2023-12-31 0000887225 kep:ShinPyeongtaekPowerMember 2023-12-31 0000887225 kep:NoeulGreenEnergyMember 2023-12-31 0000887225 kep:GangwonWindPowerMember 2023-12-31 0000887225 kep:GSDonghaeElectricPowerMember 2023-12-31 0000887225 kep:KNHSolarMember 2023-12-31 0000887225 kep:YTNMember 2023-12-31 0000887225 kep:DongbuHighwaySolarMember 2023-12-31 0000887225 kep:SeobuHighwaySolarMember 2023-12-31 0000887225 kep:KAPESMember 2023-12-31 0000887225 kep:SeobusamboHighwayPhotovoltaicsMember 2023-12-31 0000887225 kep:DaeguGreenPowerJointVenturesMember 2023-12-31 0000887225 kep:SPowerMember 2023-12-31 0000887225 kep:HyundaiEcoEnergyCoLtdMember 2023-12-31 0000887225 kep:YeongGwangYaksuWindElectricCoLtdMember 2023-12-31 0000887225 kep:DummyMember 2023-12-31 0000887225 kep:KoreaElectricPowerIndustrialDevelopmentMember 2023-12-31 0000887225 kep:SamcheokEcoMaterialsMember 2023-12-31 0000887225 kep:BusanGreenEnergyMember 2023-12-31 0000887225 kep:HyundaiGreenPowerMember 2023-12-31 0000887225 kep:KoreaPowerExchangeMember 2023-12-31 0000887225 kep:BigeumResidentPhotovoltaicPowerMember 2023-12-31 0000887225 kep:GwangyangGreenEnergyMember 2023-12-31 0000887225 kep:SuwonNewPowerCoLtdMember 2023-12-31 0000887225 kep:LongTermFinancialInstrumentsCategoryMember 2023-12-31 0000887225 kep:LongTermFinancialInstrumentsMember 2023-12-31 0000887225 kep:OtherSubsidiariesMember 2023-12-31 0000887225 kep:KoreaSoutheastPowerMember kep:SecondBondTypeHybridBondMember 2023-12-31 0000887225 kep:PropertyPlantAndEquipmentAndOthers1Member 2023-12-31 0000887225 kep:PropertyPlantEquipmentOthers9Member 2023-12-31 0000887225 kep:TradeReceivableAndOthers2Member 2023-12-31 0000887225 kep:TradeReceivableAndOthers1Member 2023-12-31 0000887225 kep:PropertyPlantEquipmentOthers6Member 2023-12-31 0000887225 kep:PropertyPlantEquipmentOthers7Member 2023-12-31 0000887225 kep:PropertyPlantEquipmentOthers8Member 2023-12-31 0000887225 kep:PropertyPlantAndEquipmentAndOthers4Member 2023-12-31 0000887225 kep:PropertyPlantEquipmentOthers5Member 2023-12-31 0000887225 kep:PropertyPlantAndEquipmentAndOthers3Member 2023-12-31 0000887225 kep:FinanceLeaseReceivableAndPropertyPlantAndEquipmentAndOthers2Member 2023-12-31 0000887225 kep:FinanceLeaseReceivableAndPropertyPlantAndEquipmentAndOthersMember 2023-12-31 0000887225 kep:PropertyPlantAndEquipmentAndOthers2Member 2023-12-31 0000887225 kep:TaebackGuinemiWindPowerMember 2023-12-31 0000887225 kep:GreenEnergyElectricityGenerationCoLtdMember 2023-12-31 0000887225 kep:BitgoelEcoEnergyMember 2023-12-31 0000887225 kep:HonamWindPowerMember 2023-12-31 0000887225 kep:MuanSunshineSolarPowerPlantCoLtdMember 2023-12-31 0000887225 kep:PNDSolarMember 2023-12-31 0000887225 kep:TaebaekGadeoksanWindPowerCoLtdMember 2023-12-31 0000887225 kep:YaksuESSLtdMember 2023-12-31 0000887225 kep:GoesanSolarParkMember 2023-12-31 0000887225 kep:JejuGimnyeongWindPowerCoLtdMember 2023-12-31 0000887225 kep:DaeguPhotovoltaicMember 2023-12-31 0000887225 kep:ExpresswaySolarlightPowerGenerationMember 2023-12-31 0000887225 kep:EnergycoCoMember 2023-12-31 0000887225 kep:BitsolarEnergyMember 2023-12-31 0000887225 kep:SamsuWindPowerCoLtdMember 2023-12-31 0000887225 kep:TaebaekWindPowerMember 2023-12-31 0000887225 kep:LimitAmountAvailableForCard1Member 2023-12-31 0000887225 ifrs-full:LoanCommitmentsMember 2023-12-31 0000887225 kep:GeneralLoanMember 2023-12-31 0000887225 kep:PaymentGuarantee2Member 2023-12-31 0000887225 kep:CertificationOfBidding1Member 2023-12-31 0000887225 kep:OtherCommitments1Member 2023-12-31 0000887225 kep:PaymentGuaranteeMember 2023-12-31 0000887225 kep:PaymentGuarantee3Member 2023-12-31 0000887225 kep:PerformanceGuarantee2Member 2023-12-31 0000887225 kep:PerformanceGuarantee4Member 2023-12-31 0000887225 kep:AdvancePaymentBondWarrantyBondRetentionBondOthers3Member 2023-12-31 0000887225 kep:CertificationOfPaymentOnPayablesFromForeignCountryMember 2023-12-31 0000887225 kep:OtherCommitments2Member 2023-12-31 0000887225 kep:OtherCommitments3Member 2023-12-31 0000887225 kep:SecuredLoanOfCreditSalesMember 2023-12-31 0000887225 kep:LoanCommitments2Member 2023-12-31 0000887225 kep:LimitAmountAvailableForCPMember 2023-12-31 0000887225 kep:TradeFinanceMember 2023-12-31 0000887225 kep:PerformanceGuarantee3Member 2023-12-31 0000887225 kep:AdvancePaymentBondWarrantyBondRetentionBondOthers4Member 2023-12-31 0000887225 kep:EquityBridgeLoanGuarantee1Member 2023-12-31 0000887225 kep:InclusiveCredit2Member 2023-12-31 0000887225 kep:PerformanceGuaranteeMember 2023-12-31 0000887225 kep:PerformanceGuarantee5Member 2023-12-31 0000887225 kep:PerformanceGuarantee6Member 2023-12-31 0000887225 kep:PerformanceGuarantee7Member 2023-12-31 0000887225 kep:CertificationBidding2Member 2023-12-31 0000887225 kep:CommitmentsOnBankOverdraftMember 2023-12-31 0000887225 kep:AdvancePaymentBondWarrantyBondRetentionBondAndOthers1Member 2023-12-31 0000887225 kep:AdvancePaymentBondWarrantyBondRetentionBondOthers2Member 2023-12-31 0000887225 kep:InclusiveCredit1Member 2023-12-31 0000887225 kep:LocalLongTermBorrowings19Member 2023-12-31 0000887225 kep:ForeignLongTermBorrowings11Member 2023-12-31 0000887225 kep:ForeignLongtermBorrowings13Member 2023-12-31 0000887225 kep:ForeignLongtermBorrowings15Member 2023-12-31 0000887225 kep:LocalLongTermBorrowings1Member 2023-12-31 0000887225 kep:LocalLongTermBorrowings2Member ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 kep:LocalLongTermBorrowings2Member ifrs-full:TopOfRangeMember 2023-12-31 0000887225 kep:LocalLongTermBorrowings6Member 2023-12-31 0000887225 kep:LocalLongTermBorrowings8Member 2023-12-31 0000887225 kep:LocalLongTermBorrowings9Member 2023-12-31 0000887225 kep:LocalLongTermBorrowings17Member 2023-12-31 0000887225 kep:LocalLongTermBorrowings21Member ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 kep:LocalLongTermBorrowings21Member ifrs-full:TopOfRangeMember 2023-12-31 0000887225 kep:LocalLongTermBorrowings23Member ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 kep:LocalLongTermBorrowings23Member ifrs-full:TopOfRangeMember 2023-12-31 0000887225 kep:LocalLongTermBorrowings26Member 2023-12-31 0000887225 kep:LocalLongTermBorrowings28Member ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 kep:LocalLongTermBorrowings28Member ifrs-full:TopOfRangeMember 2023-12-31 0000887225 kep:LocalLongTermBorrowings29Member ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 kep:LocalLongTermBorrowings29Member ifrs-full:TopOfRangeMember 2023-12-31 0000887225 kep:ForeignLongTermBorrowings6Member ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 kep:ForeignLongTermBorrowings6Member ifrs-full:TopOfRangeMember 2023-12-31 0000887225 kep:ForeignLongTermBorrowings7Member 2023-12-31 0000887225 kep:ForeignLongTermBorrowings8Member ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 kep:ForeignLongTermBorrowings8Member ifrs-full:TopOfRangeMember 2023-12-31 0000887225 kep:ForeignLongTermBorrowings10Member 2023-12-31 0000887225 kep:Fy04Member 2023-12-31 0000887225 kep:Fy17aMember 2023-12-31 0000887225 kep:Fy18aMember 2023-12-31 0000887225 kep:Fy19aMember 2023-12-31 0000887225 kep:Fy20bMember 2023-12-31 0000887225 kep:Fy17cMember 2023-12-31 0000887225 kep:Fy20aMember 2023-12-31 0000887225 kep:Fy22bMember 2023-12-31 0000887225 kep:Fy22dMember 2023-12-31 0000887225 kep:Fy22eMember 2023-12-31 0000887225 kep:Fy17bMember 2023-12-31 0000887225 kep:Fy22aMember 2023-12-31 0000887225 kep:ElectricityBonds1Member ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 kep:ElectricityBonds1Member ifrs-full:TopOfRangeMember 2023-12-31 0000887225 kep:CorporateBondsMember ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 kep:CorporateBondsMember ifrs-full:TopOfRangeMember 2023-12-31 0000887225 ifrs-full:BottomOfRangeMember kep:Fy96Member 2023-12-31 0000887225 ifrs-full:TopOfRangeMember kep:Fy96Member 2023-12-31 0000887225 ifrs-full:BottomOfRangeMember kep:Fy97Member 2023-12-31 0000887225 ifrs-full:TopOfRangeMember kep:Fy97Member 2023-12-31 0000887225 ifrs-full:BottomOfRangeMember kep:Fy19cMember 2023-12-31 0000887225 ifrs-full:TopOfRangeMember kep:Fy19cMember 2023-12-31 0000887225 ifrs-full:BottomOfRangeMember kep:Fy19eMember 2023-12-31 0000887225 ifrs-full:TopOfRangeMember kep:Fy19eMember 2023-12-31 0000887225 ifrs-full:BottomOfRangeMember kep:Fy22cMember 2023-12-31 0000887225 ifrs-full:TopOfRangeMember kep:Fy22cMember 2023-12-31 0000887225 ifrs-full:BottomOfRangeMember kep:Fy22fMember 2023-12-31 0000887225 ifrs-full:TopOfRangeMember kep:Fy22fMember 2023-12-31 0000887225 kep:CorporateBonds1Member ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 kep:CorporateBonds1Member ifrs-full:TopOfRangeMember 2023-12-31 0000887225 kep:Fy19bMember 2023-12-31 0000887225 kep:Fy21aMember 2023-12-31 0000887225 kep:Fy21bMember 2023-12-31 0000887225 kep:Fy21cMember 2023-12-31 0000887225 kep:Fy20dMember 2023-12-31 0000887225 kep:Fy14Member 2023-12-31 0000887225 kep:Fy23cMember 2023-12-31 0000887225 kep:Fy23dMember 2023-12-31 0000887225 kep:Fy23eMember 2023-12-31 0000887225 kep:Fy20cMember 2023-12-31 0000887225 kep:Fy21dMember 2023-12-31 0000887225 kep:Fy15Member 2023-12-31 0000887225 kep:Fy22gMember 2023-12-31 0000887225 kep:Fy23aMember 2023-12-31 0000887225 kep:Fy23bMember 2023-12-31 0000887225 kep:LocalBankOverdraft1Member ifrs-full:TopOfRangeMember 2023-12-31 0000887225 kep:LocalBankOverdraft1Member ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 kep:LocalBankOverdraft1Member 2023-12-31 0000887225 kep:LocalShortTermBorrowings3Member ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 kep:LocalShortTermBorrowings2Member ifrs-full:TopOfRangeMember 2023-12-31 0000887225 kep:LocalShortTermBorrowings2Member ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 kep:LocalShortTermBorrowings4Member ifrs-full:TopOfRangeMember 2023-12-31 0000887225 kep:ShortTermFinancialInstrumentsCategoryMember 2023-12-31 0000887225 kep:GoDeokCleanEnergyCoLtdMember 2023-12-31 0000887225 kep:YangyangSuriWindPowerCoLtdMember 2023-12-31 0000887225 kep:NineAssociatesOverseasMember 2023-12-31 0000887225 kep:KoreaPowerEngineeringServiceMember 2023-12-31 0000887225 kep:MuanSolarParkCoLtdMember 2023-12-31 0000887225 kep:SaemangeumSolarPowerCoLtdMember 2023-12-31 0000887225 kep:KWNuclearComponentsMember 2023-12-31 0000887225 kep:GunsanLandSolarMember 2023-12-31 0000887225 kep:SolaseadoSolarPowerMember 2023-12-31 0000887225 kep:YangyangWindPowerCoLtdMember 2023-12-31 0000887225 kep:KoreaDevelopmentBankMember 2023-12-31 0000887225 kep:SaemangeumSebitPowerPlantMember 2023-12-31 0000887225 kep:DaejungOffshoreWindPowerMember 2023-12-31 0000887225 kep:YeongyangWindPowerCorporationIiMember 2023-12-31 0000887225 kep:ExpenseOfIssuanceMember 2023-12-31 0000887225 ifrs-full:LandMember ifrs-full:NoncurrentAssetsHeldForSaleMember 2023-12-31 0000887225 ifrs-full:BuildingsMember ifrs-full:NoncurrentAssetsHeldForSaleMember 2023-12-31 0000887225 ifrs-full:NoncurrentAssetsHeldForSaleMember 2023-12-31 0000887225 kep:StructuresMember ifrs-full:NoncurrentAssetsHeldForSaleMember 2023-12-31 0000887225 kep:LoansRelatedPartiesMember 2023-12-31 0000887225 kep:CheongjuEcoParkCoLtdMember 2023-12-31 0000887225 kep:GeumsungsanWindPowerCoLtdMember 2023-12-31 0000887225 kep:GuraeResidentPowerCoLtdMember 2023-12-31 0000887225 kep:ForesightIberianSolarGroupHoldingS.lMember 2023-12-31 0000887225 kep:InternationalOffshorePowerTransmissionHoldingCompanyLimitedMember 2023-12-31 0000887225 kep:EumseongEcoParkMember 2023-12-31 0000887225 kep:ChangwonNuriEnergyMember 2023-12-31 0000887225 kep:DEEnergiaSpAMember 2023-12-31 0000887225 kep:DangjinEcoPowerMember 2023-12-31 0000887225 kep:StavroHoldingIIABMember 2023-12-31 0000887225 kep:SpowerChileSpaMember 2023-12-31 0000887225 kep:SeungmunGreenEnergyMember 2023-12-31 0000887225 kep:SeobusamboHighwayPhotovoltaicsCo.Ltd.Member 2023-12-31 0000887225 kep:REBarrenRidgeLandCoLLCMember 2023-12-31 0000887225 kep:REPioneerHoldingsLLCMember 2023-12-31 0000887225 kep:REBarrenRidge1HoldingsLLCMember 2023-12-31 0000887225 kep:REHolidayHoldingsLLCMember 2023-12-31 0000887225 kep:Cheong-SongNoraesanWindPowerCoLtdMember 2023-12-31 0000887225 kep:SolarPhilippinesCalataganCorporationMember 2023-12-31 0000887225 kep:ChesterSolarISpAMember 2023-12-31 0000887225 kep:LaurelSpAMember 2023-12-31 0000887225 kep:DiegoDeAlmagroSolarSpAMember 2023-12-31 0000887225 kep:REAstoria2LandCoLLCMember 2023-12-31 0000887225 kep:DaesanGreenEnergyCoLtdMember 2023-12-31 0000887225 kep:ChungsongmeonBongSanWindPowerCoLtdMember 2023-12-31 0000887225 kep:KIAMCOKOWEPOBannertonHoldCoPtyLtdMember 2023-12-31 0000887225 kep:SaemangeumSolarPowerCoLtdMember 2023-12-31 0000887225 kep:SouthJamaicaPowerCompanyLimitedMember 2023-12-31 0000887225 kep:NawahEnergyMember 2023-12-31 0000887225 kep:MOMENTUMMember 2023-12-31 0000887225 kep:SeokmunEnergyMember 2023-12-31 0000887225 kep:RESTechnologyADMember 2023-12-31 0000887225 kep:ShuweihatAsiaOperationMaintenanceCompanyMember 2023-12-31 0000887225 kep:WaterburyLakeUraniumLPMember 2023-12-31 0000887225 kep:ASMBGInvesticiiADMember 2023-12-31 0000887225 kep:KelarSAMember 2023-12-31 0000887225 kep:KAPESMember 2023-12-31 0000887225 kep:RabighOperationMaintenanceMember 2023-12-31 0000887225 kep:KEPCOSPCPowerCorporationMember 2023-12-31 0000887225 kep:AmmanAsiaElectricPowerMember 2023-12-31 0000887225 kep:ShuweihatAsiaPowerInvestmentBVMember 2023-12-31 0000887225 kep:HonamWindPowerMember 2023-12-31 0000887225 kep:NghiSon2PowerMember 2023-12-31 0000887225 kep:ExpresswaySolarlightPowerGenerationMember 2023-12-31 0000887225 kep:IncheonNewPowerMember 2023-12-31 0000887225 kep:RabighElectricityMember 2023-12-31 0000887225 kep:DatangKEPCOChaoyangRenewablePowerMember 2023-12-31 0000887225 kep:KVHoldingsMember 2023-12-31 0000887225 kep:GansuDatangYumenWindPowerMember 2023-12-31 0000887225 kep:DatangChifengRenewablePowerMember 2023-12-31 0000887225 kep:KoreaPowerEngineeringServiceMember 2023-12-31 0000887225 kep:ChuncheonEnergyMember 2023-12-31 0000887225 kep:KWNuclearComponentsMember 2023-12-31 0000887225 kep:GlobalTradeOfPowerSystemMember 2023-12-31 0000887225 kep:BusanShinhoSolarPowerMember 2023-12-31 0000887225 kep:JamaicaPublicServiceMember 2023-12-31 0000887225 kep:DaehanWindPowerPSCMember 2023-12-31 0000887225 kep:YeonggwangWindPowerMember 2023-12-31 0000887225 kep:DaeguGreenPowerJointVenturesMember 2023-12-31 0000887225 kep:BarakahOneCompanyMember 2023-12-31 0000887225 kep:YeonggwangbaeksuWindPowerMember 2023-12-31 0000887225 kep:PTTanjungPowerIndonesiaMember 2023-12-31 0000887225 kep:ChesterSolarVSpAMember 2023-12-31 0000887225 kep:ChesterSolarIVSpAMember 2023-12-31 0000887225 kep:HaemodumSolarCoLtdMember 2023-12-31 0000887225 kep:RECURSOSSOLARESPVDEMEXICOIISSDECVMember 2023-12-31 0000887225 kep:FairhavenEnergyStorageLlcMember 2023-12-31 0000887225 kep:WadiNoorSolarPowerCompanySaocMember 2023-12-31 0000887225 kep:NamyangjuCombinedHeatAndPowerCoLtdMember 2023-12-31 0000887225 kep:NHAmundiGlobalInfrastructureInvestmentPrivateInvestmentTrust21Member 2023-12-31 0000887225 kep:SamsuWindPowerCoLtdMember 2023-12-31 0000887225 kep:JaeunResidentWindPowerPlantCoLtdMember 2023-12-31 0000887225 kep:ShinhanBNPPPrivateInvestmentTrustEastWestSunlightDreamMember 2023-12-31 0000887225 kep:PTBaritoWahanaTenagaMember 2023-12-31 0000887225 kep:BitsolarEnergyMember 2023-12-31 0000887225 kep:HapcheonFloatingPhotovoltaicPowerPlantIncMember 2023-12-31 0000887225 kep:CheongnaEnergyMember 2023-12-31 0000887225 kep:BusanIndustrialSolarPowerCoLtdMember 2023-12-31 0000887225 kep:OneEnergyAsiaLimitedMember 2023-12-31 0000887225 kep:KASINVESTMENTIILLCMember 2023-12-31 0000887225 kep:KASINVESTMENTILLCMember 2023-12-31 0000887225 kep:PulauIndahPowerPlantSdnBhdMember 2023-12-31 0000887225 kep:PungbackWindFarmCorporationMember 2023-12-31 0000887225 kep:TrumbullAssetManagementLlcMember 2023-12-31 0000887225 kep:PyeongchangWindPowerMember 2023-12-31 0000887225 kep:EnelXMidlandPhotovoltaicLlcMember 2023-12-31 0000887225 kep:GunsanLandSolarCoLtdMember 2023-12-31 0000887225 kep:PrimeSwedishHoldingAbMember 2023-12-31 0000887225 kep:KepcoKpsCarabaoCorpMember 2023-12-31 0000887225 kep:GoheungNewEnergyCoLtdMember 2023-12-31 0000887225 kep:CapmanLynxScaSicarMember 2023-12-31 0000887225 kep:HadongEfactoryCoLtdMember 2023-12-31 0000887225 kep:JeongeupGreenPowerCoLtdMember 2023-12-31 0000887225 kep:KumyangEcoParkCoLtdMember 2023-12-31 0000887225 kep:JeonjuBioGreenEnergyCoLtdMember 2023-12-31 0000887225 kep:TaebaekWindPowerCoLtdMember 2023-12-31 0000887225 kep:KepcoForPowerCompanyMember 2023-12-31 0000887225 kep:YangyangSuriWindPowerCoLtdMember 2023-12-31 0000887225 kep:BoimCombinedHeatAndPowerGenerationCo.Ltd.FormerlyDayoneEnergyCo.Ltd.Member 2023-12-31 0000887225 kep:GuadalupeSolarSpaMember 2023-12-31 0000887225 kep:OmisanWindPowerMember 2023-12-31 0000887225 kep:PulauIndahOAndMSdnBhdMember 2023-12-31 0000887225 kep:YeongwolEcoWindCoLtdMember 2023-12-31 0000887225 kep:YangyangWindPowerCoLtdMember 2023-12-31 0000887225 kep:NaepoGreenEnergyMember 2023-12-31 0000887225 kep:CAESLLCMember 2023-12-31 0000887225 kep:EnergycoCoLtdFormerlyEnergycoLlcMember 2023-12-31 0000887225 kep:YeongamSolarPowerCoLtdMember 2023-12-31 0000887225 kep:SolaseadoSolarPowerMember 2023-12-31 0000887225 kep:SUNMEXRENOVABLESSADECVMember 2023-12-31 0000887225 kep:HORUSSOLARSADECVMember 2023-12-31 0000887225 kep:PowerEmbeddedMember 2023-12-31 0000887225 kep:ChangwonSgEnergyCoLtdMember 2023-12-31 0000887225 kep:DonpyungTechnologyCoLtdMember 2023-12-31 0000887225 kep:HorangEnergyIncMember 2023-12-31 0000887225 kep:HoenggyeRenewableEnergyCoLtdMember 2023-12-31 0000887225 kep:HamanGreenEnergyCoLtdMember 2023-12-31 0000887225 kep:SongsanGreenEnergyCoLtdMember 2023-12-31 0000887225 kep:FutureConvergenceTechnologyLaboratoryMember 2023-12-31 0000887225 kep:GreenRadiationMember 2023-12-31 0000887225 kep:YangguFloatingPhotovoltaicPowerPlantIncMember 2023-12-31 0000887225 kep:SantiagoSolarPowerSpaMember 2023-12-31 0000887225 kep:EnvironmentAndEnergyMember 2023-12-31 0000887225 kep:AceMember 2023-12-31 0000887225 kep:RecsInnovationCo.Ltd.FormerlyWangSanEngineering.Co.Ltd.Member 2023-12-31 0000887225 kep:EcoMotionCoLtdMember 2023-12-31 0000887225 kep:GoDeokCleanEnergyCoLtdMember 2023-12-31 0000887225 kep:O2BGlobalCoLtdMember 2023-12-31 0000887225 kep:BigeumResidentPhotovoltaicPowerMember 2023-12-31 0000887225 kep:SEPCoLtdMember 2023-12-31 0000887225 kep:GwangbaekSolarPowerInvestmentCoLtdMember 2023-12-31 0000887225 kep:JejuGimnyeongWindPowerCoLtdMember 2023-12-31 0000887225 kep:HankookElectricPowerInformationCoLtdMember 2023-12-31 0000887225 kep:TronixCoLtdMember 2023-12-31 0000887225 kep:MuanSunshineSolarPowerPlantCoLtdMember 2023-12-31 0000887225 kep:SureDataLabCoLtdMember 2023-12-31 0000887225 kep:AnjwaSmartFarmSolarCityCoLtdMember 2023-12-31 0000887225 kep:BitgoelEcoEnergyCoLtdMember 2023-12-31 0000887225 kep:KPEGreenEnergyCoLtdMember 2023-12-31 0000887225 kep:Ud4mMember 2023-12-31 0000887225 kep:MuanSolarParkCoLtdMember 2023-12-31 0000887225 kep:GoesanSolarParkCoLtdMember 2023-12-31 0000887225 kep:TaebaekGadeoksanWindPowerCoLtdMember 2023-12-31 0000887225 kep:GGuruCoLtdMember 2023-12-31 0000887225 kep:YeomsubongWindPowerCo.Ltd.Member 2023-12-31 0000887225 kep:KostureCoLtdMember 2023-12-31 0000887225 kep:SeoroseoroSunnyPowerPlantCoLtdMember 2023-12-31 0000887225 kep:GangneungSacheonFuelCellCoLtdMember 2023-12-31 0000887225 kep:ChuncheonGreenEnergyCo.Ltd.Member 2023-12-31 0000887225 kep:HaeparangEnergyCo.Ltd.Member 2023-12-31 0000887225 kep:YeongyangWindPowerCorporationIiMember 2023-12-31 0000887225 kep:SaemangeumSebitPowerPlantCo.Ltd.Member 2023-12-31 0000887225 kep:Pt.CirebonEnergiPrasaranaMember 2023-12-31 0000887225 kep:PlatformnMember 2023-12-31 0000887225 kep:BoulderSolarMember 2023-12-31 0000887225 kep:YuDangSolarCoLtdMember 2023-12-31 0000887225 kep:SaemangeumHeemangPhotovoltaicCoLtdMember 2023-12-31 0000887225 kep:KoreaEnergyDataCoLtdMember 2023-12-31 0000887225 kep:SeobuHighwaySolarMember 2023-12-31 0000887225 kep:DongbuHighwaySolarMember 2023-12-31 0000887225 kep:GemengInternationalEnergyMember 2023-12-31 0000887225 kep:KNOCNigerianEastOilMember 2023-12-31 0000887225 kep:KoreaPowerExchangeMember 2023-12-31 0000887225 kep:GangwonWindPowerMember 2023-12-31 0000887225 kep:XePianXeNamnoyPowerMember 2023-12-31 0000887225 kep:DongducheonDreamPowerMember 2023-12-31 0000887225 kep:KoreaElectricPowerIndustrialDevelopmentMember 2023-12-31 0000887225 kep:EnergyInfraAssetManagementMember 2023-12-31 0000887225 kep:KNOCNigerianWestOilMember 2023-12-31 0000887225 kep:KNHSolarMember 2023-12-31 0000887225 kep:NoeulGreenEnergyMember 2023-12-31 0000887225 kep:SPowerMember 2023-12-31 0000887225 kep:BusanGreenEnergyMember 2023-12-31 0000887225 kep:DaejungOffshoreWindPowerMember 2023-12-31 0000887225 kep:GangneungEcoPowerMember 2023-12-31 0000887225 kep:SamcheokEcoMaterialsCo.LimitedMember 2023-12-31 0000887225 kep:KoreaGasCorporationMember 2023-12-31 0000887225 kep:HaengBokDoSiPhotovoltaicPowerCoLtdMember 2023-12-31 0000887225 kep:JinbhuvishPowerGenerationPvtMember 2023-12-31 0000887225 kep:ShinPyeongtaekPowerMember 2023-12-31 0000887225 kep:GSDonghaeElectricPowerMember 2023-12-31 0000887225 kep:GoseongGreenPowerMember 2023-12-31 0000887225 kep:PTMutiaraJawaMember 2023-12-31 0000887225 kep:HyundaiGreenPowerMember 2023-12-31 0000887225 kep:KoreaElectricPowerCorporationFundMember 2023-12-31 0000887225 kep:DaeguPhotovoltaicMember 2023-12-31 0000887225 kep:HansuwonKnpCoLtdFormerlyKoreaNuclearPartnersCoLtdMember 2023-12-31 0000887225 kep:PioneerGasPowerMember 2023-12-31 0000887225 kep:DaeryunPowerMember 2023-12-31 0000887225 kep:PTCirebonElectricPowerMember 2023-12-31 0000887225 kep:PTWampuElectricPowerMember 2023-12-31 0000887225 kep:SPCPowerCorporationMember 2023-12-31 0000887225 kep:TaebackGuinemiWindPowerMember 2023-12-31 0000887225 kep:YTNMember 2023-12-31 0000887225 kep:PTBayanResourcesTBKMember 2023-12-31 0000887225 kep:GwangyangGreenEnergyMember 2023-12-31 0000887225 kep:NepalWaterEnergyDevelopmentCompanyPrivateLimiteMember 2023-12-31 0000887225 kep:HyundaiEcoEnergyCoLtdMember 2023-12-31 0000887225 kep:PNDSolarMember 2023-12-31 0000887225 kep:GreenEnergyElectricityGenerationCoLtdMember 2023-12-31 0000887225 kep:DaegucleanEnergyMember 2023-12-31 0000887225 kep:YeongGwangYaksuWindElectricCoLtdMember 2023-12-31 0000887225 kep:YaksuESSLtdMember 2023-12-31 0000887225 kep:HanwhaCorporation-linkedSunlightPowerSpecialPrivateEquityInvestmentTrustNo1Member 2023-12-31 0000887225 kep:StnCo.Ltd.FormerlyStructureTestNetworkCo.Ltd.Member 2023-12-31 0000887225 kep:IndeckNilesDevelopmentLLCMember 2023-12-31 0000887225 kep:SuwonNewPowerCoLtdMember 2023-12-31 0000887225 kep:IndeckNilesAssetManagementLLCMember 2023-12-31 0000887225 kep:KoreaEnergySolutionsCoLtdMember 2023-12-31 0000887225 kep:ITRCoLtdMember 2023-12-31 0000887225 kep:AnjwaSmartFarmSolarCityMember 2023-12-31 0000887225 kep:LocalLongTermBorrowings4Member 2023-12-31 0000887225 kep:LocalLongTermBorrowings5Member ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 kep:LocalLongTermBorrowings5Member ifrs-full:TopOfRangeMember 2023-12-31 0000887225 kep:LocalLongTermBorrowings11Member 2023-12-31 0000887225 kep:LocalLongTermBorrowings14Member ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 kep:LocalLongTermBorrowings14Member ifrs-full:TopOfRangeMember 2023-12-31 0000887225 kep:LocalLongTermBorrowings19Member ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 kep:LocalLongTermBorrowings19Member ifrs-full:TopOfRangeMember 2023-12-31 0000887225 kep:LocalLongTermBorrowings22Member ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 kep:LocalLongTermBorrowings22Member ifrs-full:TopOfRangeMember 2023-12-31 0000887225 kep:ForeignLongTermBorrowings2Member ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 kep:ForeignLongTermBorrowings2Member ifrs-full:TopOfRangeMember 2023-12-31 0000887225 kep:ForeignLongTermBorrowings3Member ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 kep:ForeignLongTermBorrowings3Member ifrs-full:TopOfRangeMember 2023-12-31 0000887225 kep:ForeignLongTermBorrowings4Member ifrs-full:BottomOfRangeMember 2023-12-31 0000887225 kep:ForeignLongTermBorrowings4Member ifrs-full:TopOfRangeMember 2023-12-31 0000887225 kep:ForeignLongTermBorrowings5Member 2023-12-31 0000887225 kep:ForeignLongtermBorrowings14Member ifrs-full:BottomOfRangeMember 2023-12-31