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Related Parties - Summary of Guarantees Provided To Related Parties (Details)
ر.س in Thousands, $ in Thousands, $ in Thousands, ₩ in Millions
 12 Months Ended
Dec. 31, 2022
USD ($)
Dec. 31, 2022
SAR (ر.س)
Dec. 31, 2022
MXN ($)
Dec. 31, 2022
KRW (₩)
Performance guarantees 1        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Principal obligor Shuweihat Asia Operation & Maintenance Company Shuweihat Asia Operation & Maintenance Company Shuweihat Asia Operation & Maintenance Company Shuweihat Asia Operation & Maintenance Company
Amount of guarantees | $ $ 11,000      
Name of Guarantee Shuweihat Asia Power Investment B.V. Shuweihat Asia Power Investment B.V. Shuweihat Asia Power Investment B.V. Shuweihat Asia Power Investment B.V.
Performance guarantees and others 1        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Principal obligor Rabigh Operation & Maintenance Company Limited Rabigh Operation & Maintenance Company Limited Rabigh Operation & Maintenance Company Limited Rabigh Operation & Maintenance Company Limited
Amount of guarantees | $ $ 1,387      
Name of Guarantee Rabigh Electricity Company Rabigh Electricity Company Rabigh Electricity Company Rabigh Electricity Company
Performance guarantees 2        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Principal obligor Nghi Son 2 Power LLC Nghi Son 2 Power LLC Nghi Son 2 Power LLC Nghi Son 2 Power LLC
Amount of guarantees | $ $ 70,000      
Name of Guarantee SMBC Ho Chi Minh and others SMBC Ho Chi Minh and others SMBC Ho Chi Minh and others SMBC Ho Chi Minh and others
Debt guarantees 1        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Principal obligor Barakah One Company Barakah One Company Barakah One Company Barakah One Company
Amount of guarantees | $ $ 1,223,355      
Name of Guarantee Export-Import Bank of Korea and others Export-Import Bank of Korea and others Export-Import Bank of Korea and others Export-Import Bank of Korea and others
Performance guarantees and others 2        
Disclosure of Guarantees provided between the related parties [Line Items]        
Amount of guarantees | $ $ 4,197,287      
Name of Guarantee Export-Import Bank of Korea and others Export-Import Bank of Korea and others Export-Import Bank of Korea and others Export-Import Bank of Korea and others
Performance guarantees 3        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Electric Power Corporation [1] Korea Electric Power Corporation [1] Korea Electric Power Corporation [1] Korea Electric Power Corporation [1]
Name of Principal obligor RE Holiday Holdings LLC [1] RE Holiday Holdings LLC [1] RE Holiday Holdings LLC [1] RE Holiday Holdings LLC [1]
Amount of guarantees | $ $ 222,077 [1]      
Name of Guarantee EFS Renewables Holdings, LLC, CA-CIB and others [1] EFS Renewables Holdings, LLC, CA-CIB and others [1] EFS Renewables Holdings, LLC, CA-CIB and others [1] EFS Renewables Holdings, LLC, CA-CIB and others [1]
Performance guarantees 4        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Principal obligor RE Pioneer Holdings LLC RE Pioneer Holdings LLC RE Pioneer Holdings LLC RE Pioneer Holdings LLC
Amount of guarantees | $ $ 106,873      
Name of Guarantee EFS Renewables Holdings, LLC EFS Renewables Holdings, LLC EFS Renewables Holdings, LLC EFS Renewables Holdings, LLC
Performance guarantees 5        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Electric Power Corporation [1] Korea Electric Power Corporation [1] Korea Electric Power Corporation [1] Korea Electric Power Corporation [1]
Name of Principal obligor RE Barren Ridge 1 Holdings LLC [1] RE Barren Ridge 1 Holdings LLC [1] RE Barren Ridge 1 Holdings LLC [1] RE Barren Ridge 1 Holdings LLC [1]
Amount of guarantees | $ $ 68,838 [1]      
Name of Guarantee Firstar Development, LLC [1] Firstar Development, LLC [1] Firstar Development, LLC [1] Firstar Development, LLC [1]
Performance guarantees 6        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Principal obligor Rabigh Electricity Company Rabigh Electricity Company Rabigh Electricity Company Rabigh Electricity Company
Amount of guarantees | ر.س   ر.س 1,509    
Name of Guarantee Hana Bank Hana Bank Hana Bank Hana Bank
Performance guarantees 7        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Principal obligor Shuweihat Asia Power Investment B.V. Shuweihat Asia Power Investment B.V. Shuweihat Asia Power Investment B.V. Shuweihat Asia Power Investment B.V.
Amount of guarantees | $ $ 100,000      
Name of Guarantee ING Bank ING Bank ING Bank ING Bank
Performance guarantees 8        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Principal obligor Amman Asia Electric Power Company Amman Asia Electric Power Company Amman Asia Electric Power Company Amman Asia Electric Power Company
Amount of guarantees | $ $ 16,800      
Name of Guarantee Shinhan Bank Shinhan Bank Shinhan Bank Shinhan Bank
Other Performance Guarantees        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Principal obligor Horus Solar, S.A. de C.V. Horus Solar, S.A. de C.V. Horus Solar, S.A. de C.V. Horus Solar, S.A. de C.V.
Amount of guarantees | $     $ 16,413  
Name of Guarantee CENACE and others CENACE and others CENACE and others CENACE and others
Other Performance Guarantees 1        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Principal obligor Recursos Solares PV de Mexico II, S.A. de C.V. Recursos Solares PV de Mexico II, S.A. de C.V. Recursos Solares PV de Mexico II, S.A. de C.V. Recursos Solares PV de Mexico II, S.A. de C.V.
Amount of guarantees | $     $ 1,518  
Name of Guarantee SEMARNAT SEMARNAT SEMARNAT SEMARNAT
Performance guarantees 9        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Principal obligor International Offshore Power Transmission Holding Company Limited International Offshore Power Transmission Holding Company Limited International Offshore Power Transmission Holding Company Limited International Offshore Power Transmission Holding Company Limited
Amount of guarantees | $ $ 150,000      
Name of Guarantee Mizuho Bank Mizuho Bank Mizuho Bank Mizuho Bank
Other performance guarantees 3        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Principal obligor International Offshore Power Transmission Holding Company Limited International Offshore Power Transmission Holding Company Limited International Offshore Power Transmission Holding Company Limited International Offshore Power Transmission Holding Company Limited
Amount of guarantees | $ $ 7,000      
Name of Guarantee Credit Agricole Credit Agricole Credit Agricole Credit Agricole
Collateralized money invested 1        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Electric Power Corporation [2] Korea Electric Power Corporation [2] Korea Electric Power Corporation [2] Korea Electric Power Corporation [2]
Name of Principal obligor Pulau Indah Power Plant Sdn. Bhd. [2] Pulau Indah Power Plant Sdn. Bhd. [2] Pulau Indah Power Plant Sdn. Bhd. [2] Pulau Indah Power Plant Sdn. Bhd. [2]
Amount of guarantees       ₩ 13,210 [2]
Name of Guarantee Malaysian Trustee Berhad [2] Malaysian Trustee Berhad [2] Malaysian Trustee Berhad [2] Malaysian Trustee Berhad [2]
Collateralized money invested 2        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Principal obligor Cheongna Energy Co., Ltd. Cheongna Energy Co., Ltd. Cheongna Energy Co., Ltd. Cheongna Energy Co., Ltd.
Amount of guarantees       ₩ 10,758
Name of Guarantee Kookmin Bank and others Kookmin Bank and others Kookmin Bank and others Kookmin Bank and others
Guarantees for supplemental funding 1        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. [3] Korea Western Power Co., Ltd. [3] Korea Western Power Co., Ltd. [3] Korea Western Power Co., Ltd. [3]
Name of Principal obligor Cheongna Energy Co., Ltd. [3] Cheongna Energy Co., Ltd. [3] Cheongna Energy Co., Ltd. [3] Cheongna Energy Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee Kookmin Bank and others [3] Kookmin Bank and others [3] Kookmin Bank and others [3] Kookmin Bank and others [3]
Collateralized money invested 3        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Principal obligor Xe-Pian Xe-Namnoy Power Co., Ltd. Xe-Pian Xe-Namnoy Power Co., Ltd. Xe-Pian Xe-Namnoy Power Co., Ltd. Xe-Pian Xe-Namnoy Power Co., Ltd.
Amount of guarantees       ₩ 115,584
Name of Guarantee Krung Thai Bank Krung Thai Bank Krung Thai Bank Krung Thai Bank
Impounding bonus guarantees        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Principal obligor Xe-Pian Xe-Namnoy Power Co., Ltd. Xe-Pian Xe-Namnoy Power Co., Ltd. Xe-Pian Xe-Namnoy Power Co., Ltd. Xe-Pian Xe-Namnoy Power Co., Ltd.
Amount of guarantees | $ $ 5,000      
Name of Guarantee SK E&C SK E&C SK E&C SK E&C
Other performance guarantees 4        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Principal obligor Rabigh Operation & Maintenance Company Limited Rabigh Operation & Maintenance Company Limited Rabigh Operation & Maintenance Company Limited Rabigh Operation & Maintenance Company Limited
Amount of guarantees | ر.س   ر.س 11,200    
Name of Guarantee National Bank of Kuwait National Bank of Kuwait National Bank of Kuwait National Bank of Kuwait
Collateralized money invested 4        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Principal obligor Daegu Photovoltaic Co., Ltd. Daegu Photovoltaic Co., Ltd. Daegu Photovoltaic Co., Ltd. Daegu Photovoltaic Co., Ltd.
Amount of guarantees       ₩ 2,849
Name of Guarantee Korea Development Bank Korea Development Bank Korea Development Bank Korea Development Bank
Collateralized money invested 5        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. [4] Korea Western Power Co., Ltd. [4] Korea Western Power Co., Ltd. [4] Korea Western Power Co., Ltd. [4]
Name of Principal obligor Dongducheon Dream Power Co., Ltd. [4] Dongducheon Dream Power Co., Ltd. [4] Dongducheon Dream Power Co., Ltd. [4] Dongducheon Dream Power Co., Ltd. [4]
Amount of guarantees       ₩ 52,476 [4]
Name of Guarantee Kookmin Bank and others [4] Kookmin Bank and others [4] Kookmin Bank and others [4] Kookmin Bank and others [4]
Debt guarantees 2        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Principal obligor Dongducheon Dream Power Co., Ltd. Dongducheon Dream Power Co., Ltd. Dongducheon Dream Power Co., Ltd. Dongducheon Dream Power Co., Ltd.
Amount of guarantees       ₩ 20,300
Name of Guarantee BNK Securities BNK Securities BNK Securities BNK Securities
Collateralized money invested 7        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Principal obligor Haeng Bok Do Si Photovoltaic Power Co., Ltd. Haeng Bok Do Si Photovoltaic Power Co., Ltd. Haeng Bok Do Si Photovoltaic Power Co., Ltd. Haeng Bok Do Si Photovoltaic Power Co., Ltd.
Amount of guarantees       ₩ 278
Name of Guarantee Nonghyup Bank Nonghyup Bank Nonghyup Bank Nonghyup Bank
Collateralized money invested 6        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Principal obligor PT. Mutiara Jawa PT. Mutiara Jawa PT. Mutiara Jawa PT. Mutiara Jawa
Amount of guarantees       ₩ 3,597
Name of Guarantee Woori Bank Woori Bank Woori Bank Woori Bank
Collateralized money invested 8        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Principal obligor Shin Pyeongtaek Power Co., Ltd. Shin Pyeongtaek Power Co., Ltd. Shin Pyeongtaek Power Co., Ltd. Shin Pyeongtaek Power Co., Ltd.
Amount of guarantees       ₩ 133,823
Name of Guarantee Kookmin Bank and others Kookmin Bank and others Kookmin Bank and others Kookmin Bank and others
Guarantees for supplemental funding 2        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. [3] Korea Western Power Co., Ltd. [3] Korea Western Power Co., Ltd. [3] Korea Western Power Co., Ltd. [3]
Name of Principal obligor Shin Pyeongtaek Power Co., Ltd. [3] Shin Pyeongtaek Power Co., Ltd. [3] Shin Pyeongtaek Power Co., Ltd. [3] Shin Pyeongtaek Power Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee Kookmin Bank and others [3] Kookmin Bank and others [3] Kookmin Bank and others [3] Kookmin Bank and others [3]
Collateralized money invested 9        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Principal obligor Haemodum Solar Co., Ltd. Haemodum Solar Co., Ltd. Haemodum Solar Co., Ltd. Haemodum Solar Co., Ltd.
Amount of guarantees       ₩ 3,367
Name of Guarantee Nonghyup Bank Nonghyup Bank Nonghyup Bank Nonghyup Bank
Collateralized money invested 10        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Principal obligor Muan Solar Park Co., Ltd. Muan Solar Park Co., Ltd. Muan Solar Park Co., Ltd. Muan Solar Park Co., Ltd.
Amount of guarantees       ₩ 7,838
Name of Guarantee IBK and others IBK and others IBK and others IBK and others
Collateralized money invested 11        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Principal obligor Anjwa Smart Farm & Solar City Co., Ltd. Anjwa Smart Farm & Solar City Co., Ltd. Anjwa Smart Farm & Solar City Co., Ltd. Anjwa Smart Farm & Solar City Co., Ltd.
Amount of guarantees       ₩ 8,662
Name of Guarantee Hana Bank and others Hana Bank and others Hana Bank and others Hana Bank and others
Collateralized money invested 12        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Principal obligor Seoroseoro Sunny Power Plant Co., Ltd. Seoroseoro Sunny Power Plant Co., Ltd. Seoroseoro Sunny Power Plant Co., Ltd. Seoroseoro Sunny Power Plant Co., Ltd.
Amount of guarantees       ₩ 859
Name of Guarantee Hana Bank and others Hana Bank and others Hana Bank and others Hana Bank and others
Collateralized money invested 13        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Principal obligor YuDang Solar Co., Ltd. YuDang Solar Co., Ltd. YuDang Solar Co., Ltd. YuDang Solar Co., Ltd.
Amount of guarantees       ₩ 586
Name of Guarantee Hana Bank and others Hana Bank and others Hana Bank and others Hana Bank and others
Guarantees for supplemental funding 3        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. [3] Korea Western Power Co., Ltd. [3] Korea Western Power Co., Ltd. [3] Korea Western Power Co., Ltd. [3]
Name of Principal obligor YuDang Solar Co., Ltd. [3] YuDang Solar Co., Ltd. [3] YuDang Solar Co., Ltd. [3] YuDang Solar Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee Hana Bank and others [3] Hana Bank and others [3] Hana Bank and others [3] Hana Bank and others [3]
Collateralized money invested 14        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Principal obligor Hapcheon Floating Photovoltaic Power Plant Inc. Hapcheon Floating Photovoltaic Power Plant Inc. Hapcheon Floating Photovoltaic Power Plant Inc. Hapcheon Floating Photovoltaic Power Plant Inc.
Amount of guarantees       ₩ 8,471
Name of Guarantee Nonghyup Bank and others Nonghyup Bank and others Nonghyup Bank and others Nonghyup Bank and others
Collateralized money invested 15        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Principal obligor Yeongwol Eco Wind Co., Ltd. Yeongwol Eco Wind Co., Ltd. Yeongwol Eco Wind Co., Ltd. Yeongwol Eco Wind Co., Ltd.
Amount of guarantees       ₩ 3,155
Name of Guarantee Hana Bank and others Hana Bank and others Hana Bank and others Hana Bank and others
Guarantees for supplemental funding 4        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. [3] Korea Western Power Co., Ltd. [3] Korea Western Power Co., Ltd. [3] Korea Western Power Co., Ltd. [3]
Name of Principal obligor Yeongwol Eco Wind Co., Ltd. [3] Yeongwol Eco Wind Co., Ltd. [3] Yeongwol Eco Wind Co., Ltd. [3] Yeongwol Eco Wind Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee Hana Bank and others [3] Hana Bank and others [3] Hana Bank and others [3] Hana Bank and others [3]
Collateralized money invested 16        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd. Korea Western Power Co., Ltd.
Name of Principal obligor Gurae Resident Power Co., Ltd. Gurae Resident Power Co., Ltd. Gurae Resident Power Co., Ltd. Gurae Resident Power Co., Ltd.
Amount of guarantees       ₩ 391
Name of Guarantee Hana Bank and others Hana Bank and others Hana Bank and others Hana Bank and others
Guarantees for supplemental funding 5        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd. [3] Korea Western Power Co., Ltd. [3] Korea Western Power Co., Ltd. [3] Korea Western Power Co., Ltd. [3]
Name of Principal obligor Gurae Resident Power Co., Ltd. [3] Gurae Resident Power Co., Ltd. [3] Gurae Resident Power Co., Ltd. [3] Gurae Resident Power Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee Hana Bank and others [3] Hana Bank and others [3] Hana Bank and others [3] Hana Bank and others [3]
Collateralized money invested 17        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd Korea Western Power Co., Ltd Korea Western Power Co., Ltd Korea Western Power Co., Ltd
Name of Principal obligor Gunsan Land Solar Co., Ltd. Gunsan Land Solar Co., Ltd. Gunsan Land Solar Co., Ltd. Gunsan Land Solar Co., Ltd.
Amount of guarantees       ₩ 27,544
Name of Guarantee Hana Bank and others Hana Bank and others Hana Bank and others Hana Bank and others
Guarantees for supplemental funding 6        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd [3] Korea Western Power Co., Ltd [3] Korea Western Power Co., Ltd [3] Korea Western Power Co., Ltd [3]
Name of Principal obligor Gunsan Land Solar Co., Ltd. [3] Gunsan Land Solar Co., Ltd. [3] Gunsan Land Solar Co., Ltd. [3] Gunsan Land Solar Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee Hana Bank and others [3] Hana Bank and others [3] Hana Bank and others [3] Hana Bank and others [3]
Collateralized money invested 18        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd Korea Western Power Co., Ltd Korea Western Power Co., Ltd Korea Western Power Co., Ltd
Name of Principal obligor Seobusambo highway photovoltaics Co., Ltd. Seobusambo highway photovoltaics Co., Ltd. Seobusambo highway photovoltaics Co., Ltd. Seobusambo highway photovoltaics Co., Ltd.
Amount of guarantees       ₩ 3,067
Name of Guarantee Hana Bank and others Hana Bank and others Hana Bank and others Hana Bank and others
Guarantees for supplemental funding 7        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd [3] Korea Western Power Co., Ltd [3] Korea Western Power Co., Ltd [3] Korea Western Power Co., Ltd [3]
Name of Principal obligor Seobusambo highway photovoltaics Co., Ltd. [3] Seobusambo highway photovoltaics Co., Ltd. [3] Seobusambo highway photovoltaics Co., Ltd. [3] Seobusambo highway photovoltaics Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee Hana Bank and others [3] Hana Bank and others [3] Hana Bank and others [3] Hana Bank and others [3]
Collateralized money invested 19        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd Korea Western Power Co., Ltd Korea Western Power Co., Ltd Korea Western Power Co., Ltd
Name of Principal obligor Eumseong Eco Park Co., Ltd. Eumseong Eco Park Co., Ltd. Eumseong Eco Park Co., Ltd. Eumseong Eco Park Co., Ltd.
Amount of guarantees       ₩ 5,557
Name of Guarantee Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others
Guarantees for supplemental funding 8        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd [3] Korea Western Power Co., Ltd [3] Korea Western Power Co., Ltd [3] Korea Western Power Co., Ltd [3]
Name of Principal obligor Eumseong Eco Park Co., Ltd. [3] Eumseong Eco Park Co., Ltd. [3] Eumseong Eco Park Co., Ltd. [3] Eumseong Eco Park Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee Kyobo Life Insurance Co., Ltd. and others [3] Kyobo Life Insurance Co., Ltd. and others [3] Kyobo Life Insurance Co., Ltd. and others [3] Kyobo Life Insurance Co., Ltd. and others [3]
Collateralized money invested 20        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Western Power Co., Ltd Korea Western Power Co., Ltd Korea Western Power Co., Ltd Korea Western Power Co., Ltd
Name of Principal obligor PungBack Wind Farm Corporation PungBack Wind Farm Corporation PungBack Wind Farm Corporation PungBack Wind Farm Corporation
Amount of guarantees       ₩ 6,743
Name of Guarantee Hanwha Life Insurance Co., Ltd and others Hanwha Life Insurance Co., Ltd and others Hanwha Life Insurance Co., Ltd and others Hanwha Life Insurance Co., Ltd and others
Collateralized money invested 21        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor Busan Shinho Solar Power Co., Ltd. Busan Shinho Solar Power Co., Ltd. Busan Shinho Solar Power Co., Ltd. Busan Shinho Solar Power Co., Ltd.
Amount of guarantees       ₩ 6,719
Name of Guarantee Korea Development Bank and others Korea Development Bank and others Korea Development Bank and others Korea Development Bank and others
Collateralized money invested 22        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor Seokmun Energy Co., Ltd. Seokmun Energy Co., Ltd. Seokmun Energy Co., Ltd. Seokmun Energy Co., Ltd.
Amount of guarantees       ₩ 17,336
Name of Guarantee Kookmin Bank and others Kookmin Bank and others Kookmin Bank and others Kookmin Bank and others
Guarantees for supplemental funding 9        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3]
Name of Principal obligor Seokmun Energy Co., Ltd. [3] Seokmun Energy Co., Ltd. [3] Seokmun Energy Co., Ltd. [3] Seokmun Energy Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee Kookmin Bank and others [3] Kookmin Bank and others [3] Kookmin Bank and others [3] Kookmin Bank and others [3]
Collateralized money invested 23        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor Chun-cheon Energy Co., Ltd. Chun-cheon Energy Co., Ltd. Chun-cheon Energy Co., Ltd. Chun-cheon Energy Co., Ltd.
Amount of guarantees       ₩ 32,044
Name of Guarantee Kookmin Bank and others Kookmin Bank and others Kookmin Bank and others Kookmin Bank and others
Guarantees for supplemental funding 10        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3]
Name of Principal obligor Chun-cheon Energy Co., Ltd. [3] Chun-cheon Energy Co., Ltd. [3] Chun-cheon Energy Co., Ltd. [3] Chun-cheon Energy Co., Ltd. [3]
Amount of guarantees       ₩ 90,800 [3]
Name of Guarantee Kookmin Bank and others [3] Kookmin Bank and others [3] Kookmin Bank and others [3] Kookmin Bank and others [3]
Collateralized money invested 24        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor Honam Wind Power Co., Ltd. Honam Wind Power Co., Ltd. Honam Wind Power Co., Ltd. Honam Wind Power Co., Ltd.
Amount of guarantees       ₩ 4,819
Name of Guarantee Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others
Guarantees for supplemental funding 11        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3]
Name of Principal obligor Honam Wind Power Co., Ltd. [3] Honam Wind Power Co., Ltd. [3] Honam Wind Power Co., Ltd. [3] Honam Wind Power Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee Shinhan Bank and others [3] Shinhan Bank and others [3] Shinhan Bank and others [3] Shinhan Bank and others [3]
Collateralized money invested 25        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor GS Donghae Electric Power Co., Ltd. GS Donghae Electric Power Co., Ltd. GS Donghae Electric Power Co., Ltd. GS Donghae Electric Power Co., Ltd.
Amount of guarantees       ₩ 260,145
Name of Guarantee Korea Development Bank and others Korea Development Bank and others Korea Development Bank and others Korea Development Bank and others
Collateralized money invested 26        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor Yeonggwangbaeksu Wind Power Co., Ltd. Yeonggwangbaeksu Wind Power Co., Ltd. Yeonggwangbaeksu Wind Power Co., Ltd. Yeonggwangbaeksu Wind Power Co., Ltd.
Amount of guarantees       ₩ 3,151
Name of Guarantee Kookmin Bank and others Kookmin Bank and others Kookmin Bank and others Kookmin Bank and others
Collateralized money invested 27        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor Yeonggwang Wind Power Co., Ltd. Yeonggwang Wind Power Co., Ltd. Yeonggwang Wind Power Co., Ltd. Yeonggwang Wind Power Co., Ltd.
Amount of guarantees       ₩ 20,713
Name of Guarantee KDB Capital Corporation and others KDB Capital Corporation and others KDB Capital Corporation and others KDB Capital Corporation and others
Collateralized money invested 28        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor Daesan Green Energy Co., Ltd. Daesan Green Energy Co., Ltd. Daesan Green Energy Co., Ltd. Daesan Green Energy Co., Ltd.
Amount of guarantees       ₩ 19,218
Name of Guarantee IBK IBK IBK IBK
Guarantees for supplemental funding 12        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3]
Name of Principal obligor Daesan Green Energy Co., Ltd. [3] Daesan Green Energy Co., Ltd. [3] Daesan Green Energy Co., Ltd. [3] Daesan Green Energy Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee IBK [3] IBK [3] IBK [3] IBK [3]
Collateralized money invested 29        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor Taebaek Gadeoksan Wind Power Co., Ltd. Taebaek Gadeoksan Wind Power Co., Ltd. Taebaek Gadeoksan Wind Power Co., Ltd. Taebaek Gadeoksan Wind Power Co., Ltd.
Amount of guarantees       ₩ 20,040
Name of Guarantee Hana Bank and others Hana Bank and others Hana Bank and others Hana Bank and others
Guarantees for supplemental funding 13        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3]
Name of Principal obligor Taebaek Gadeoksan Wind Power Co., Ltd. [3] Taebaek Gadeoksan Wind Power Co., Ltd. [3] Taebaek Gadeoksan Wind Power Co., Ltd. [3] Taebaek Gadeoksan Wind Power Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee Hana Bank and others [3] Hana Bank and others [3] Hana Bank and others [3] Hana Bank and others [3]
Other guarantees        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor PT. Tanjung Power Indonesia PT. Tanjung Power Indonesia PT. Tanjung Power Indonesia PT. Tanjung Power Indonesia
Amount of guarantees | $ $ 3,150      
Name of Guarantee PT. Adaro Indonesia PT. Adaro Indonesia PT. Adaro Indonesia PT. Adaro Indonesia
Guarantees for supplemental funding 14        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3]
Name of Principal obligor PT. Tanjung Power Indonesia [3] PT. Tanjung Power Indonesia [3] PT. Tanjung Power Indonesia [3] PT. Tanjung Power Indonesia [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee Sumitomo mitsui banking and others [3] Sumitomo mitsui banking and others [3] Sumitomo mitsui banking and others [3] Sumitomo mitsui banking and others [3]
Collateralized money invested 30        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor PT. Tanjung Power Indonesia PT. Tanjung Power Indonesia PT. Tanjung Power Indonesia PT. Tanjung Power Indonesia
Amount of guarantees       ₩ 92,907
Name of Guarantee MUFG and others MUFG and others MUFG and others MUFG and others
Performance guarantees 10        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor South Jamaica Power Company Limited South Jamaica Power Company Limited South Jamaica Power Company Limited South Jamaica Power Company Limited
Amount of guarantees | $ $ 14,400      
Name of Guarantee Credit Agricole Corporate & Investment Bank Seoul and others Credit Agricole Corporate & Investment Bank Seoul and others Credit Agricole Corporate & Investment Bank Seoul and others Credit Agricole Corporate & Investment Bank Seoul and others
Collateralized money invested 31        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor South Jamaica Power Company Limited South Jamaica Power Company Limited South Jamaica Power Company Limited South Jamaica Power Company Limited
Amount of guarantees       ₩ 46,437
Name of Guarantee JCSD Trustee Services Limited and others JCSD Trustee Services Limited and others JCSD Trustee Services Limited and others JCSD Trustee Services Limited and others
Collateralized money invested 32        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor DE Energia SpA DE Energia SpA DE Energia SpA DE Energia SpA
Amount of guarantees       ₩ 9,536
Name of Guarantee Mirae Asset Daewoo Co., Ltd. and others Mirae Asset Daewoo Co., Ltd. and others Mirae Asset Daewoo Co., Ltd. and others Mirae Asset Daewoo Co., Ltd. and others
Collateralized Loans [Member]        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor DE Energia SpA DE Energia SpA DE Energia SpA DE Energia SpA
Amount of guarantees | $ $ 5,728      
Payment guarantees 1        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. [5] Korea East-West Power Co., Ltd. [5] Korea East-West Power Co., Ltd. [5] Korea East-West Power Co., Ltd. [5]
Name of Principal obligor DE Energia SpA [5] DE Energia SpA [5] DE Energia SpA [5] DE Energia SpA [5]
Amount of guarantees | $ $ 943 [5]      
Name of Guarantee Hana Bank [5] Hana Bank [5] Hana Bank [5] Hana Bank [5]
Collateralized money invested 33        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor Bitsolar Energy Co., Ltd. Bitsolar Energy Co., Ltd. Bitsolar Energy Co., Ltd. Bitsolar Energy Co., Ltd.
Amount of guarantees       ₩ 352
Name of Guarantee Mirae Asset Life Insurance Co., Ltd. and others Mirae Asset Life Insurance Co., Ltd. and others Mirae Asset Life Insurance Co., Ltd. and others Mirae Asset Life Insurance Co., Ltd. and others
Collateralized money invested 34        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor Cheongju Eco Park Co., Ltd. Cheongju Eco Park Co., Ltd. Cheongju Eco Park Co., Ltd. Cheongju Eco Park Co., Ltd.
Amount of guarantees       ₩ 10,490
Name of Guarantee Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others
Collateralized money invested 35        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor Busan Industrial Solar Power Co., Ltd. Busan Industrial Solar Power Co., Ltd. Busan Industrial Solar Power Co., Ltd. Busan Industrial Solar Power Co., Ltd.
Amount of guarantees       ₩ 1,168
Name of Guarantee Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others
Guarantees for supplemental funding 15        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3]
Name of Principal obligor Busan Industrial Solar Power Co., Ltd. [3] Busan Industrial Solar Power Co., Ltd. [3] Busan Industrial Solar Power Co., Ltd. [3] Busan Industrial Solar Power Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee Shinhan Bank and others [3] Shinhan Bank and others [3] Shinhan Bank and others [3] Shinhan Bank and others [3]
Collateralized money invested 36        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor Yangyang Wind Power Co., Ltd. Yangyang Wind Power Co., Ltd. Yangyang Wind Power Co., Ltd. Yangyang Wind Power Co., Ltd.
Amount of guarantees       ₩ 10,864
Name of Guarantee Hana Bank and others Hana Bank and others Hana Bank and others Hana Bank and others
Guarantees for supplemental funding 16        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3]
Name of Principal obligor Yangyang Wind Power Co., Ltd. [3] Yangyang Wind Power Co., Ltd. [3] Yangyang Wind Power Co., Ltd. [3] Yangyang Wind Power Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee Hana Bank and others [3] Hana Bank and others [3] Hana Bank and others [3] Hana Bank and others [3]
Collateralized money invested 37        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor Daewon Green Energy Co., Ltd. Daewon Green Energy Co., Ltd. Daewon Green Energy Co., Ltd. Daewon Green Energy Co., Ltd.
Amount of guarantees       ₩ 4,485
Name of Guarantee Hana Bank and others Hana Bank and others Hana Bank and others Hana Bank and others
Guarantees for supplemental funding 17        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3]
Name of Principal obligor Daewon Green Energy Co., Ltd. [3] Daewon Green Energy Co., Ltd. [3] Daewon Green Energy Co., Ltd. [3] Daewon Green Energy Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee Hana Bank and others [3] Hana Bank and others [3] Hana Bank and others [3] Hana Bank and others [3]
Collateralized money invested 38        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor Goheung New Energy Co., Ltd. Goheung New Energy Co., Ltd. Goheung New Energy Co., Ltd. Goheung New Energy Co., Ltd.
Amount of guarantees       ₩ 3,615
Name of Guarantee Woori Bank and others Woori Bank and others Woori Bank and others Woori Bank and others
Guarantees for supplemental funding 18        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3] Korea East-West Power Co., Ltd. [3]
Name of Principal obligor Goheung New Energy Co., Ltd. [3] Goheung New Energy Co., Ltd. [3] Goheung New Energy Co., Ltd. [3] Goheung New Energy Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee Woori Bank and others [3] Woori Bank and others [3] Woori Bank and others [3] Woori Bank and others [3]
Collateralized money invested 39        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd. Korea East-West Power Co., Ltd.
Name of Principal obligor Seungmun Green Energy Seungmun Green Energy Seungmun Green Energy Seungmun Green Energy
Amount of guarantees       ₩ 9,055
Name of Guarantee Hana Bank and others Hana Bank and others Hana Bank and others Hana Bank and others
Collateralized money invested 40        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Principal obligor KNH Solar Co., Ltd. KNH Solar Co., Ltd. KNH Solar Co., Ltd. KNH Solar Co., Ltd.
Amount of guarantees       ₩ 2,883
Name of Guarantee Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others
Performance guarantees and guarantees for supplemental funding        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Southern Power Co., Ltd. [3] Korea Southern Power Co., Ltd. [3] Korea Southern Power Co., Ltd. [3] Korea Southern Power Co., Ltd. [3]
Name of Principal obligor KNH Solar Co., Ltd. [3] KNH Solar Co., Ltd. [3] KNH Solar Co., Ltd. [3] KNH Solar Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee Shinhan Bank and others [3] Shinhan Bank and others [3] Shinhan Bank and others [3] Shinhan Bank and others [3]
Collateralized money invested 41        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Principal obligor Daeryun Power Co., Ltd. Daeryun Power Co., Ltd. Daeryun Power Co., Ltd. Daeryun Power Co., Ltd.
Amount of guarantees       ₩ 26,727
Name of Guarantee Korea Development Bank and others Korea Development Bank and others Korea Development Bank and others Korea Development Bank and others
Collateralized money invested 42        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Principal obligor Daegu Green Power Co., Ltd. Daegu Green Power Co., Ltd. Daegu Green Power Co., Ltd. Daegu Green Power Co., Ltd.
Amount of guarantees       ₩ 29,360
Name of Guarantee Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others
Performance guarantees 11        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Principal obligor Daegu Green Power Co., Ltd. Daegu Green Power Co., Ltd. Daegu Green Power Co., Ltd. Daegu Green Power Co., Ltd.
Amount of guarantees       ₩ 0
Name of Guarantee Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others
Performance guarantees 12        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Principal obligor Kelar S.A. Kelar S.A. Kelar S.A. Kelar S.A.
Amount of guarantees | $ $ 54,282      
Name of Guarantee Hana Bank, MUFG Hana Bank, MUFG Hana Bank, MUFG Hana Bank, MUFG
Performance guarantees 13        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Principal obligor Daehan Wind Power PSC Daehan Wind Power PSC Daehan Wind Power PSC Daehan Wind Power PSC
Amount of guarantees | $ $ 1,800      
Name of Guarantee Shinhan Bank Shinhan Bank Shinhan Bank Shinhan Bank
Payment guarantees 2        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Southern Power Co., Ltd. [6] Korea Southern Power Co., Ltd. [6] Korea Southern Power Co., Ltd. [6] Korea Southern Power Co., Ltd. [6]
Name of Principal obligor Daehan Wind Power PSC [6] Daehan Wind Power PSC [6] Daehan Wind Power PSC [6] Daehan Wind Power PSC [6]
Amount of guarantees | $ $ 1,900 [6]      
Name of Guarantee Hana Bank [6] Hana Bank [6] Hana Bank [6] Hana Bank [6]
Collateralized money invested 43        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Principal obligor Daehan Wind Power PSC Daehan Wind Power PSC Daehan Wind Power PSC Daehan Wind Power PSC
Amount of guarantees       ₩ 13,923
Name of Guarantee Standard Chartered Standard Chartered Standard Chartered Standard Chartered
Collateralized money invested 44        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Principal obligor Pyeongchang Wind Power Co., Ltd. Pyeongchang Wind Power Co., Ltd. Pyeongchang Wind Power Co., Ltd. Pyeongchang Wind Power Co., Ltd.
Amount of guarantees       ₩ 14,464
Name of Guarantee Woori Bank and Shinhan Bank and others Woori Bank and Shinhan Bank and others Woori Bank and Shinhan Bank and others Woori Bank and Shinhan Bank and others
Performance guarantees 14        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Principal obligor Pyeongchang Wind Power Co., Ltd. Pyeongchang Wind Power Co., Ltd. Pyeongchang Wind Power Co., Ltd. Pyeongchang Wind Power Co., Ltd.
Amount of guarantees       ₩ 0
Collateralized money invested 45        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Principal obligor Taebaek Guinemi Wind Power Co., Ltd. Taebaek Guinemi Wind Power Co., Ltd. Taebaek Guinemi Wind Power Co., Ltd. Taebaek Guinemi Wind Power Co., Ltd.
Amount of guarantees       ₩ 13,049
Name of Guarantee IBK IBK IBK IBK
Payment guarantees 3        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Southern Power Co., Ltd. [7] Korea Southern Power Co., Ltd. [7] Korea Southern Power Co., Ltd. [7] Korea Southern Power Co., Ltd. [7]
Name of Principal obligor Samcheok Eco Materials Co., Ltd. [7] Samcheok Eco Materials Co., Ltd. [7] Samcheok Eco Materials Co., Ltd. [7] Samcheok Eco Materials Co., Ltd. [7]
Amount of guarantees       ₩ 0 [7]
Name of Guarantee SEM Investment Co., Ltd. [7] SEM Investment Co., Ltd. [7] SEM Investment Co., Ltd. [7] SEM Investment Co., Ltd. [7]
Collateralized money invested 46        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Principal obligor Solaseado Solar Power Co., Ltd. Solaseado Solar Power Co., Ltd. Solaseado Solar Power Co., Ltd. Solaseado Solar Power Co., Ltd.
Amount of guarantees       ₩ 12,088
Name of Guarantee Kookmin Bank and others Kookmin Bank and others Kookmin Bank and others Kookmin Bank and others
Collateralized money invested 47        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Southern Power Co., Ltd. [8] Korea Southern Power Co., Ltd. [8] Korea Southern Power Co., Ltd. [8] Korea Southern Power Co., Ltd. [8]
Name of Principal obligor Naepo Green Energy Co., Ltd. [8] Naepo Green Energy Co., Ltd. [8] Naepo Green Energy Co., Ltd. [8] Naepo Green Energy Co., Ltd. [8]
Amount of guarantees       ₩ 0 [8]
Name of Guarantee IBK and others [8] IBK and others [8] IBK and others [8] IBK and others [8]
Guarantees for other supplemental funding and performance guarantees        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Southern Power Co., Ltd. [3] Korea Southern Power Co., Ltd. [3] Korea Southern Power Co., Ltd. [3] Korea Southern Power Co., Ltd. [3]
Name of Principal obligor Naepo Green Energy Co., Ltd. [3] Naepo Green Energy Co., Ltd. [3] Naepo Green Energy Co., Ltd. [3] Naepo Green Energy Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee IBK and others [3] IBK and others [3] IBK and others [3] IBK and others [3]
Guarantees for supplemental funding 19        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Southern Power Co., Ltd. [3] Korea Southern Power Co., Ltd. [3] Korea Southern Power Co., Ltd. [3] Korea Southern Power Co., Ltd. [3]
Name of Principal obligor Naepo Green Energy Co., Ltd. [3] Naepo Green Energy Co., Ltd. [3] Naepo Green Energy Co., Ltd. [3] Naepo Green Energy Co., Ltd. [3]
Amount of guarantees       ₩ 30,000 [3]
Name of Guarantee IBK and others [3] IBK and others [3] IBK and others [3] IBK and others [3]
Collateralized money invested 48        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Principal obligor Omisan Wind Power Co., Ltd. Omisan Wind Power Co., Ltd. Omisan Wind Power Co., Ltd. Omisan Wind Power Co., Ltd.
Amount of guarantees       ₩ 10,411
Name of Guarantee Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others
Collateralized money invested 49        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd. Korea Southern Power Co., Ltd.
Name of Principal obligor Geumsungsan Wind Power Co., Ltd. Geumsungsan Wind Power Co., Ltd. Geumsungsan Wind Power Co., Ltd. Geumsungsan Wind Power Co., Ltd.
Amount of guarantees       ₩ 3,493
Name of Guarantee Kookmin Bank Kookmin Bank Kookmin Bank Kookmin Bank
Collateralized money invested 50        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor KOSPO Chile SpA KOSPO Chile SpA KOSPO Chile SpA KOSPO Chile SpA
Name of Principal obligor Kelar S.A. Kelar S.A. Kelar S.A. Kelar S.A.
Amount of guarantees       ₩ 117,137
Name of Guarantee Export-Import Bank of Korea and others Export-Import Bank of Korea and others Export-Import Bank of Korea and others Export-Import Bank of Korea and others
Guarantees for supplemental funding 20        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Southern Power Co., Ltd. [3] Korea Southern Power Co., Ltd. [3] Korea Southern Power Co., Ltd. [3] Korea Southern Power Co., Ltd. [3]
Name of Principal obligor Geumsungsan Wind Power Co., Ltd. [3] Geumsungsan Wind Power Co., Ltd. [3] Geumsungsan Wind Power Co., Ltd. [3] Geumsungsan Wind Power Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee Kookmin Bank [3] Kookmin Bank [3] Kookmin Bank [3] Kookmin Bank [3]
Collateralized money invested 51        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor KOSPO Chile SpA KOSPO Chile SpA KOSPO Chile SpA KOSPO Chile SpA
Name of Principal obligor Chester Solar I SpA Chester Solar I SpA Chester Solar I SpA Chester Solar I SpA
Amount of guarantees       ₩ 1,314
Name of Guarantee IBK IBK IBK IBK
Collateralized money invested 52        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor KOSPO Chile SpA KOSPO Chile SpA KOSPO Chile SpA KOSPO Chile SpA
Name of Principal obligor Chester Solar IV SpA Chester Solar IV SpA Chester Solar IV SpA Chester Solar IV SpA
Amount of guarantees       ₩ 181
Name of Guarantee IBK IBK IBK IBK
Collateralized money invested 53        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor KOSPO Chile SpA KOSPO Chile SpA KOSPO Chile SpA KOSPO Chile SpA
Name of Principal obligor Chester Solar V SpA Chester Solar V SpA Chester Solar V SpA Chester Solar V SpA
Amount of guarantees       ₩ 156
Name of Guarantee IBK IBK IBK IBK
Collateralized money invested 54        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor KOSPO Chile SpA KOSPO Chile SpA KOSPO Chile SpA KOSPO Chile SpA
Name of Principal obligor Diego de Almagro Solar SpA Diego de Almagro Solar SpA Diego de Almagro Solar SpA Diego de Almagro Solar SpA
Amount of guarantees       ₩ 540
Name of Guarantee IBK IBK IBK IBK
Collateralized money invested 55        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor KOSPO Chile SpA KOSPO Chile SpA KOSPO Chile SpA KOSPO Chile SpA
Name of Principal obligor Laurel SpA Laurel SpA Laurel SpA Laurel SpA
Amount of guarantees       ₩ 554
Name of Guarantee IBK IBK IBK IBK
Collateralized money invested 56        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Principal obligor YeongGwang Yaksu Wind Electric Co., Ltd. YeongGwang Yaksu Wind Electric Co., Ltd. YeongGwang Yaksu Wind Electric Co., Ltd. YeongGwang Yaksu Wind Electric Co., Ltd.
Amount of guarantees       ₩ 156
Name of Guarantee IBK and others IBK and others IBK and others IBK and others
Collateralized money invested 57        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd Korea Midland Power Co., Ltd Korea Midland Power Co., Ltd Korea Midland Power Co., Ltd
Name of Principal obligor Hyundai Green Power Co., Ltd. Hyundai Green Power Co., Ltd. Hyundai Green Power Co., Ltd. Hyundai Green Power Co., Ltd.
Amount of guarantees       ₩ 119,791
Name of Guarantee Korea Development Bank and others Korea Development Bank and others Korea Development Bank and others Korea Development Bank and others
Collateralized money invested 58        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Principal obligor Green Energy Electricity Generation Co., Ltd. Green Energy Electricity Generation Co., Ltd. Green Energy Electricity Generation Co., Ltd. Green Energy Electricity Generation Co., Ltd.
Amount of guarantees       ₩ 1,571
Name of Guarantee IBK IBK IBK IBK
Debt guarantees 3        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Principal obligor PT. Cirebon Electric Power PT. Cirebon Electric Power PT. Cirebon Electric Power PT. Cirebon Electric Power
Amount of guarantees | $ $ 4,785      
Name of Guarantee Mizuho Bank Mizuho Bank Mizuho Bank Mizuho Bank
Debt guarantees 4        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Principal obligor PT Wampu Electric Power PT Wampu Electric Power PT Wampu Electric Power PT Wampu Electric Power
Amount of guarantees | $ $ 4,401      
Name of Guarantee SMBC SMBC SMBC SMBC
Collateralized money invested 59        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Principal obligor Yaksu ESS Co., Ltd. Yaksu ESS Co., Ltd. Yaksu ESS Co., Ltd. Yaksu ESS Co., Ltd.
Amount of guarantees       ₩ 486
Name of Guarantee IBK IBK IBK IBK
Guarantees for supplemental funding and others 1        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd. [3] Korea Midland Power Co., Ltd. [3] Korea Midland Power Co., Ltd. [3] Korea Midland Power Co., Ltd. [3]
Name of Principal obligor Green Energy Electricity Generation Co., Ltd. [3] Green Energy Electricity Generation Co., Ltd. [3] Green Energy Electricity Generation Co., Ltd. [3] Green Energy Electricity Generation Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee IBK and others [3] IBK and others [3] IBK and others [3] IBK and others [3]
Collateralized money invested 60        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Principal obligor Namjeongsusang Solar Power Operation Co., Ltd. Namjeongsusang Solar Power Operation Co., Ltd. Namjeongsusang Solar Power Operation Co., Ltd. Namjeongsusang Solar Power Operation Co., Ltd.
Amount of guarantees       ₩ 373
Name of Guarantee IBK IBK IBK IBK
Collateralized money invested 61        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Principal obligor Gwangbaek Solar Power Investment Co., Ltd. Gwangbaek Solar Power Investment Co., Ltd. Gwangbaek Solar Power Investment Co., Ltd. Gwangbaek Solar Power Investment Co., Ltd.
Amount of guarantees       ₩ 5,133
Name of Guarantee Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others
Collateralized money invested 62        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Principal obligor Muan Sunshine Solar Power Plant Co., Ltd. Muan Sunshine Solar Power Plant Co., Ltd. Muan Sunshine Solar Power Plant Co., Ltd. Muan Sunshine Solar Power Plant Co., Ltd.
Amount of guarantees       ₩ 2,562
Name of Guarantee IBK IBK IBK IBK
Collateralized money invested 63        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Principal obligor Goesan Solar park Co., Ltd. Goesan Solar park Co., Ltd. Goesan Solar park Co., Ltd. Goesan Solar park Co., Ltd.
Amount of guarantees       ₩ 2,591
Name of Guarantee IBK IBK IBK IBK
Collateralized money invested 64        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Principal obligor Bitgoel Eco Energy Co., Ltd. Bitgoel Eco Energy Co., Ltd. Bitgoel Eco Energy Co., Ltd. Bitgoel Eco Energy Co., Ltd.
Amount of guarantees       ₩ 5,292
Name of Guarantee IBK and others IBK and others IBK and others IBK and others
Collateralized money invested 65        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Principal obligor Energyco Co., Ltd. Energyco Co., Ltd. Energyco Co., Ltd. Energyco Co., Ltd.
Amount of guarantees       ₩ 2,190
Name of Guarantee Nonghyup Bank Nonghyup Bank Nonghyup Bank Nonghyup Bank
Collateralized money invested 66        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Principal obligor Jeju Gimnyeong Wind Power Co., Ltd. Jeju Gimnyeong Wind Power Co., Ltd. Jeju Gimnyeong Wind Power Co., Ltd. Jeju Gimnyeong Wind Power Co., Ltd.
Amount of guarantees       ₩ 872
Name of Guarantee Nonghyup Bank Nonghyup Bank Nonghyup Bank Nonghyup Bank
Guarantees for supplemental funding 21        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd. [3] Korea Midland Power Co., Ltd. [3] Korea Midland Power Co., Ltd. [3] Korea Midland Power Co., Ltd. [3]
Name of Principal obligor Bitgoel Eco Energy Co., Ltd. [3] Bitgoel Eco Energy Co., Ltd. [3] Bitgoel Eco Energy Co., Ltd. [3] Bitgoel Eco Energy Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee IBK and others [3] IBK and others [3] IBK and others [3] IBK and others [3]
Debt guarantees 5        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Principal obligor Energyco Co., Ltd. Energyco Co., Ltd. Energyco Co., Ltd. Energyco Co., Ltd.
Amount of guarantees       ₩ 2,746
Name of Guarantee Shinhan Bank Shinhan Bank Shinhan Bank Shinhan Bank
Collateralized money invested 67        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Principal obligor Dongbu Highway Solar Co., Ltd. Dongbu Highway Solar Co., Ltd. Dongbu Highway Solar Co., Ltd. Dongbu Highway Solar Co., Ltd.
Amount of guarantees       ₩ 352
Name of Guarantee Nonghyup Bank Nonghyup Bank Nonghyup Bank Nonghyup Bank
Collateralized money invested 68        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Principal obligor Seobu Highway Solar Co., Ltd. Seobu Highway Solar Co., Ltd. Seobu Highway Solar Co., Ltd. Seobu Highway Solar Co., Ltd.
Amount of guarantees       ₩ 316
Name of Guarantee Nonghyup Bank Nonghyup Bank Nonghyup Bank Nonghyup Bank
Collateralized money invested 69        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Principal obligor Yeongyang Wind Power Corporation II Yeongyang Wind Power Corporation II Yeongyang Wind Power Corporation II Yeongyang Wind Power Corporation II
Amount of guarantees       ₩ 7,461
Name of Guarantee Korea Development Bank and Samsung Fire & Marine Insurance Co., Ltd Korea Development Bank and Samsung Fire & Marine Insurance Co., Ltd Korea Development Bank and Samsung Fire & Marine Insurance Co., Ltd Korea Development Bank and Samsung Fire & Marine Insurance Co., Ltd
Collateralized money invested 70        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Principal obligor Haeparang Energy Co., Ltd. Haeparang Energy Co., Ltd. Haeparang Energy Co., Ltd. Haeparang Energy Co., Ltd.
Amount of guarantees       ₩ 2,188
Name of Guarantee Templeton hana asset management Co. Ltd Templeton hana asset management Co. Ltd Templeton hana asset management Co. Ltd Templeton hana asset management Co. Ltd
Collateralized money invested 71        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea South-East Power Co., Ltd. [9] Korea South-East Power Co., Ltd. [9] Korea South-East Power Co., Ltd. [9] Korea South-East Power Co., Ltd. [9]
Name of Principal obligor Dayone Energy Co., Ltd. [9] Dayone Energy Co., Ltd. [9] Dayone Energy Co., Ltd. [9] Dayone Energy Co., Ltd. [9]
Amount of guarantees       ₩ 0 [9]
Name of Guarantee IBK [9] IBK [9] IBK [9] IBK [9]
Guarantees for supplemental funding 22        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd. Korea Midland Power Co., Ltd.
Name of Principal obligor Haeparang Energy Co., Ltd. Haeparang Energy Co., Ltd. Haeparang Energy Co., Ltd. Haeparang Energy Co., Ltd.
Amount of guarantees       ₩ 0
Name of Guarantee Templeton hana asset management Co. Ltd Templeton hana asset management Co. Ltd Templeton hana asset management Co. Ltd Templeton hana asset management Co. Ltd
Collateralized money invested 73        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Principal obligor RES Technology AD RES Technology AD RES Technology AD RES Technology AD
Amount of guarantees       ₩ 15,133
Name of Guarantee UniCredit Bulbank and others UniCredit Bulbank and others UniCredit Bulbank and others UniCredit Bulbank and others
Guarantees for supplemental funding 23        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Midland Power Co., Ltd. [3] Korea Midland Power Co., Ltd. [3] Korea Midland Power Co., Ltd. [3] Korea Midland Power Co., Ltd. [3]
Name of Principal obligor Saemangeum Sebit Power Plant Co., Ltd. [3] Saemangeum Sebit Power Plant Co., Ltd. [3] Saemangeum Sebit Power Plant Co., Ltd. [3] Saemangeum Sebit Power Plant Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee Kookmin Bank [3] Kookmin Bank [3] Kookmin Bank [3] Kookmin Bank [3]
Guarantees for supplemental funding and others 2        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea South-East Power Co., Ltd. [3],[10] Korea South-East Power Co., Ltd. [3],[10] Korea South-East Power Co., Ltd. [3],[10] Korea South-East Power Co., Ltd. [3],[10]
Name of Principal obligor Dayone Energy Co., Ltd. [3],[10] Dayone Energy Co., Ltd. [3],[10] Dayone Energy Co., Ltd. [3],[10] Dayone Energy Co., Ltd. [3],[10]
Amount of guarantees       ₩ 76,800 [3],[10]
Name of Guarantee NH investment & securities Co., Ltd. and others [3],[10] NH investment & securities Co., Ltd. and others [3],[10] NH investment & securities Co., Ltd. and others [3],[10] NH investment & securities Co., Ltd. and others [3],[10]
Collateralized money invested 74        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Principal obligor ASM-BG Investicii AD ASM-BG Investicii AD ASM-BG Investicii AD ASM-BG Investicii AD
Amount of guarantees       ₩ 14,555
Name of Guarantee UniCredit Bulbank and others UniCredit Bulbank and others UniCredit Bulbank and others UniCredit Bulbank and others
Guarantees for supplemental funding and others 3        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Principal obligor Expressway Solar-light Power Generation Co., Ltd. Expressway Solar-light Power Generation Co., Ltd. Expressway Solar-light Power Generation Co., Ltd. Expressway Solar-light Power Generation Co., Ltd.
Amount of guarantees       ₩ 4,754
Name of Guarantee Woori Bank Woori Bank Woori Bank Woori Bank
Collateralized money invested 75        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Principal obligor Goseong Green Power Co., Ltd. Goseong Green Power Co., Ltd. Goseong Green Power Co., Ltd. Goseong Green Power Co., Ltd.
Amount of guarantees       ₩ 288,893
Name of Guarantee Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others
Collateralized money invested 76        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Principal obligor Gangneung Eco Power Co., Ltd. Gangneung Eco Power Co., Ltd. Gangneung Eco Power Co., Ltd. Gangneung Eco Power Co., Ltd.
Amount of guarantees       ₩ 0
Name of Guarantee Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others
Collateralized money invested 77        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Principal obligor PND Solar Co., Ltd. PND Solar Co., Ltd. PND Solar Co., Ltd. PND Solar Co., Ltd.
Amount of guarantees       ₩ 1,403
Name of Guarantee IBK IBK IBK IBK
Collateralized money invested 78        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Principal obligor Hyundai Eco Energy Co., Ltd. Hyundai Eco Energy Co., Ltd. Hyundai Eco Energy Co., Ltd. Hyundai Eco Energy Co., Ltd.
Amount of guarantees       ₩ 7,631
Name of Guarantee Samsung Life Insurance and others Samsung Life Insurance and others Samsung Life Insurance and others Samsung Life Insurance and others
Collateralized money invested 79        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Principal obligor Jaeun Resident Wind Power Plant Co., Ltd. Jaeun Resident Wind Power Plant Co., Ltd. Jaeun Resident Wind Power Plant Co., Ltd. Jaeun Resident Wind Power Plant Co., Ltd.
Amount of guarantees       ₩ 2,236
Name of Guarantee IBK IBK IBK IBK
Collateralized money invested 80        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Principal obligor Chungsongmeon BongSan wind power Co., Ltd. Chungsongmeon BongSan wind power Co., Ltd. Chungsongmeon BongSan wind power Co., Ltd. Chungsongmeon BongSan wind power Co., Ltd.
Amount of guarantees       ₩ 3,470
Name of Guarantee Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others Kyobo Life Insurance Co., Ltd. and others
Collateralized money invested 81        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Principal obligor Yeongam Solar Power Co., Ltd. Yeongam Solar Power Co., Ltd. Yeongam Solar Power Co., Ltd. Yeongam Solar Power Co., Ltd.
Amount of guarantees       ₩ 9,879
Name of Guarantee Kookmin Bank and others Kookmin Bank and others Kookmin Bank and others Kookmin Bank and others
Collateralized money invested 82        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Principal obligor Samsu Wind Power Co., Ltd. Samsu Wind Power Co., Ltd. Samsu Wind Power Co., Ltd. Samsu Wind Power Co., Ltd.
Amount of guarantees       ₩ 3,205
Name of Guarantee Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others
Collateralized money invested 83        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Principal obligor Saemangeum Heemang Photovoltaic Co., Ltd. Saemangeum Heemang Photovoltaic Co., Ltd. Saemangeum Heemang Photovoltaic Co., Ltd. Saemangeum Heemang Photovoltaic Co., Ltd.
Amount of guarantees       ₩ 13,010
Name of Guarantee Woori Bank and others Woori Bank and others Woori Bank and others Woori Bank and others
Guarantees for supplemental funding and performance guarantees [Member]        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Southern Power Co., Ltd. [3] Korea Southern Power Co., Ltd. [3] Korea Southern Power Co., Ltd. [3] Korea Southern Power Co., Ltd. [3]
Name of Principal obligor Omisan Wind Power Co., Ltd. [3] Omisan Wind Power Co., Ltd. [3] Omisan Wind Power Co., Ltd. [3] Omisan Wind Power Co., Ltd. [3]
Amount of guarantees       ₩ 0 [3]
Name of Guarantee Shinhan Bank and others [3] Shinhan Bank and others [3] Shinhan Bank and others [3] Shinhan Bank and others [3]
Collateralized money invested 84        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Principal obligor Nepal Water & Energy Development Company Private Limited Nepal Water & Energy Development Company Private Limited Nepal Water & Energy Development Company Private Limited Nepal Water & Energy Development Company Private Limited
Amount of guarantees | $ $ 97,105      
Name of Guarantee International Finance Corporation and others International Finance Corporation and others International Finance Corporation and others International Finance Corporation and others
Collateralized money invested 85        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd.
Name of Principal obligor Noeul Green Energy Co., Ltd. Noeul Green Energy Co., Ltd. Noeul Green Energy Co., Ltd. Noeul Green Energy Co., Ltd.
Amount of guarantees       ₩ 0
Name of Guarantee Hana Bank and others Hana Bank and others Hana Bank and others Hana Bank and others
Collateralized money invested 86        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd.
Name of Principal obligor Busan Green Energy Co., Ltd Busan Green Energy Co., Ltd Busan Green Energy Co., Ltd Busan Green Energy Co., Ltd
Amount of guarantees       ₩ 4,396
Name of Guarantee Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others
Business Reserve Payment Guarantee [Member]        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd. Korea South-East Power Co., Ltd.
Name of Principal obligor Nepal Water & Energy Development Company Private Limited Nepal Water & Energy Development Company Private Limited Nepal Water & Energy Development Company Private Limited Nepal Water & Energy Development Company Private Limited
Amount of guarantees | $ $ 33,333      
Name of Guarantee International Finance Corporation and others International Finance Corporation and others International Finance Corporation and others International Finance Corporation and others
Collateralized money invested 87        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd.
Name of Principal obligor Go deok Clean Energy Co., Ltd. Go deok Clean Energy Co., Ltd. Go deok Clean Energy Co., Ltd. Go deok Clean Energy Co., Ltd.
Amount of guarantees       ₩ 4,419
Name of Guarantee Kookmin Bank and others Kookmin Bank and others Kookmin Bank and others Kookmin Bank and others
Collateralized money invested 88        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd.
Name of Principal obligor Cheong-Song Noraesan Wind Power Co., Ltd. Cheong-Song Noraesan Wind Power Co., Ltd. Cheong-Song Noraesan Wind Power Co., Ltd. Cheong-Song Noraesan Wind Power Co., Ltd.
Amount of guarantees       ₩ 4,264
Name of Guarantee Woori Bank and others Woori Bank and others Woori Bank and others Woori Bank and others
CollateralizedMoney Invested 89 [Member]        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd.
Name of Principal obligor Gwangyang Green Energy Co., Ltd. Gwangyang Green Energy Co., Ltd. Gwangyang Green Energy Co., Ltd. Gwangyang Green Energy Co., Ltd.
Amount of guarantees       ₩ 25,043
Name of Guarantee Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others Shinhan Bank and others
Collateralized Money Invested 90 [Member]        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd.
Name of Principal obligor Gangneung Sacheon Fuel Cell Co., Ltd. Gangneung Sacheon Fuel Cell Co., Ltd. Gangneung Sacheon Fuel Cell Co., Ltd. Gangneung Sacheon Fuel Cell Co., Ltd.
Amount of guarantees       ₩ 4,276
Name of Guarantee Hana Bank and others Hana Bank and others Hana Bank and others Hana Bank and others
Collateralized Money Invested 91 [Member]        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd. Korea Hydro & Nuclear Power Co., Ltd.
Name of Principal obligor Chun-cheon Green Energy Co., Ltd. Chun-cheon Green Energy Co., Ltd. Chun-cheon Green Energy Co., Ltd. Chun-cheon Green Energy Co., Ltd.
Amount of guarantees       ₩ 9,156
Name of Guarantee Hana Bank and others Hana Bank and others Hana Bank and others Hana Bank and others
Other performance guarantees 5 [Member]        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Principal obligor Recursos Solares PV de Mexico II, S.A. de C.V. Recursos Solares PV de Mexico II, S.A. de C.V. Recursos Solares PV de Mexico II, S.A. de C.V. Recursos Solares PV de Mexico II, S.A. de C.V.
Amount of guarantees | $ $ 393      
Name of Guarantee CFE Transmission CFE Transmission CFE Transmission CFE Transmission
Other performance guarantees 6 [Member]        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Principal obligor Sunmex Renovables, S.A. de C.V. Sunmex Renovables, S.A. de C.V. Sunmex Renovables, S.A. de C.V. Sunmex Renovables, S.A. de C.V.
Amount of guarantees | $     $ 3,666  
Name of Guarantee SEMARNAT SEMARNAT SEMARNAT SEMARNAT
Other Performance Guarantees 7 [Member]        
Disclosure of Guarantees provided between the related parties [Line Items]        
Name of Primary guarantor Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation Korea Electric Power Corporation
Name of Principal obligor Sunmex Renovables, S.A. de C.V. Sunmex Renovables, S.A. de C.V. Sunmex Renovables, S.A. de C.V. Sunmex Renovables, S.A. de C.V.
Amount of guarantees | $ $ 9,078      
Name of Guarantee CENACE CENACE CENACE CENACE
[1] The credit limits of guarantees to RE Holiday Holdings LLC and RE Barren Ridge 1 Holdings LLC include the credit limits of guarantees to their subsidiaries.
[2] The Company has provided the syndicate of lenders of PT Indo Raya Tenaga, the business corporation of PT Barito Wahana Tenaga, a guarantee by establishing the right of pledge on the shares of PT Barito Wahana Tenaga for project financing of PT Barito Wahana Tenaga as of December 31, 2022.
[3] The Company guarantees to provide supplemental funding for business with respect to excessive business expenses or insufficient repayment of borrowings.
[4] The common stocks of Dongducheon Dream Power Co., Ltd. held by the Company were pledged as collateral.
[5] This includes a guarantee related to L/C for debt repayment allowance provided to DE Energia SpA, a joint venture of the Company.
[6] The Company provided a payment guarantee to Daehan Wind Power PSC for opening L/C for Debt Service Reserve Account (DSRA).
[7] Controlling and non-controlling common shareholders of Samcheok Eco Materials Co., Ltd. have pre-emption rights, if preferred shareholders intend to sell their shares until December 26, 2023. The promised yield of the preferred stock is guaranteed through the transaction. As of December 31, 2022, the Company has recognized derivative liabilities of ￦6,760 million related to the guarantee. Meanwhile, the Company is under an agreement with Samcheok Eco Materials Co., Ltd. that if a damage incurs related to the fulfillment of obligations pursuant to the mandatory contract of coal ash supply, compensation for the expected amount of the damage should be settled.
[8] 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.
[9] The Company recognized an impairment loss on all of the equity securities of Dayone Energy Co., Ltd. before the prior year, and the acquisition cost of the securities provided as collateral is ￦47,067 million.
[10] Pursuant to the guarantee agreement, the Company recognized other provisions of ￦7,230 million as the possibility of economic benefit outflow to fulfill the obligation was deemed probable and the amount could be reasonably estimated.