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Consolidated Subsidiaries - Summary of Significant Restrictions on Abilities to Subsidiaries (Details) ₩ in Millions | 12 Months Ended
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Dec. 31, 2024 KRW (₩)
Gyeonggi Green Energy Co., Ltd. |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | Acquisition or disposal of assets of more than ￦10 billion, change in the capacity of cogeneration units (except for the change due to performance improvement of equipment, maintenance) will require unanimous consent of all directors of the entity.
Assets to which significant restrictions apply | ₩ 10,000
KOSPO Youngnam Power [Member] |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | Dividends may be payable only when all conditions of the loan agreement are satisfied. The Company’s shares cannot be wholly or partially transferred without prior written consent of financial institutions.
Jeongam Wind Power Co., Ltd. |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | Dividends may be payable only when all conditions of the loan agreement are satisfied, and prior written consent of financial institutions is obtained. Also, payments to the contracting party may be restricted depending on the financial management priority of the contract. The Company’s shares cannot be wholly or partially transferred without prior consent of other stakeholders including shareholders or financial institutions.
Jeongam Wind Power Co., Ltd. | Shareholders agreements [member] |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | When the Company requests other shareholders to transfer shares after the completion of the power generation complex, the Company has a right to purchase the shares at fair value.
Incheon Fuel Cell Co., Ltd. |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | Acquisition or disposal of assets of more than ￦20 billion, change in the capacity of cogeneration units (except for the change due to performance improvement of equipment, maintenance) will require unanimous consent of all directors of the entity.
Assets to which significant restrictions apply | ₩ 20,000
Gyeongju Wind Power Co., Ltd. |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | Dividends and settlement amounts for O&M and renewable energy certificate may be payable only when all conditions of the loan agreement are satisfied, and prior written consent of financial institutions is obtained.
Korea Offshore Wind Power Co., Ltd. |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | Principals and interest on subordinated loans or dividends and settlement amounts for renewable energy certificate may be payable only when all conditions of the loan agreement are satisfied and prior written consent of financial institutions is obtained. The Company’s equity interest in the subsidiary may not be transferred either wholly or partially without prior written consent of financial institutions.
Jeju Hanlim Offshore Wind Co., Ltd. |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | Prior approval from the lender is required when withdrawing funds (major expenditure, REC settlement, dividend payment, etc.) according to the loan agreement.
Yeongdeok Sunrise Wind Power Co., Ltd. |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | Dividends may be payable only when all conditions of the loan agreement are satisfied.
Columboola Solar Farm Hold Co Pty., Ltd. |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | Dividends may be payable only when all conditions of the loan agreement are satisfied.
Columboola Solar Farm Hold Co Pty., Ltd. | Shareholders agreements [member] |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | The Company holds a call option to purchase the shares held by another shareholder at 80% of the stock’s valuation in the event of a breach of obligation specified in the shareholder agreement.
Guam Ukudu Power LLC |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | Dividends may be payable only when all conditions of the loan agreement are satisfied. Disposing or transferring assets either as a whole or as a part is restricted, and the Company’s equity interest in the subsidiary may not be transferred either wholly or partially without prior consent of other stakeholders including financial institutions.
Changjuk Wind Power Co., Ltd. | Shareholders agreements [member] |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | When other shareholders want to sell their shares after the performance guarantee period of wind power generators stipulated in the equipment supply contract is completed, the Company has an obligation to purchase the shares at fair value after consulting with the parties on the timing and size of the acquisition, taking in to account financial conditions, business conditions, and other circumstances.
Mira Power Limited |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | The Company’s equity interest may not be transferred either wholly or partially without prior consent of other stakeholders.
Chile Solar JV SpA |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | The Company’s equity interest may not be transferred either wholly or partially without prior consent of other stakeholders.
K-SOLAR SHINAN Co., Ltd. |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | Dividends may be payable only when all conditions of the loan agreement are satisfied. The Company’s equity interest may not be transferred either wholly or partially without prior consent of other stakeholders until five years have elapsed after the commencement of the operation.
Western Power Changgi Solar Co., Ltd. |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | Principals and interest on subordinated loans or dividends to investors are only payable when all conditions of the loan agreement are satisfied, and prior written consent of financial institutions is obtained. Also, the Company’s equity interest may not be transferred either wholly or partially without prior written consent of financial institutions.
Chitose Solar Power Plant LLC |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | Capital expenditure may be incurred only upon prior consent of financial institutions. The issuance of securities to third parties, including current investors, is restricted, and the amount of paid-in capital cannot either increase, be written off or decrease.
Mangilao Intermediate Holdings LLC |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | Changes or termination of the O&M contract, and delays in the EPC contract may not be made without the prior written consent of the majority of the lenders, and dividends can be implemented only after repayment of the loan is completed.
Fujeij Wind Power Company |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | Incurring additional borrowings not specified in the loan agreement, or changing the PPA schedule or the EPC contract without the lender’s prior written consent is restricted. Also, commercial operation before acquiring wind turbine is restricted without prior consent from the EPC contractor. In addition, capital acquisition and new share issuance other than dividends payment to investors are restricted.
Qatrana Electric Power Company |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | Dividends payment, repayment of capital investment, and settlement for O&M can only be made when all conditions of the loan agreement are satisfied and prior consent of financial institutions is obtained.
KST Electric Power Company, S.A.P.I. de C.V. |
Disclosure Of Significant Restrictions On Abilities To Subsidiaries Explanatory [Line Items] |
Description of significant restrictions on entity's ability to access or use assets and settle liabilities of group | Disposal of assets exceeding $5 million per year is restricted, and the debt ratio is required to be maintained below 90%. Additionally, capital and cost expenditures that do not meet the conditions in the loan agreement are restricted.
Assets to which significant restrictions apply | ₩ 5
Requirement of debt ratio to be maintained | 90.00%

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- Definition The amount in the consolidated financial statements of the assets of the group to which significant restrictions (for example, statutory, contractual and regulatory restrictions) apply on the entity's ability to access or use the assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 13 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_13_c&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The description of significant restrictions (for example, statutory, contractual and regulatory restrictions) on the entity's ability to access or use the assets and settle the liabilities of the group, such as (a) those that restrict the ability of a parent or its subsidiaries to transfer cash or other assets to (or from) other entities within the group; and (b) guarantees or other requirements that may restrict dividends and other capital distributions being paid, or loans and advances being made or repaid, to (or from) other entities within the group. [Refer: Total for all subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 13 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_13_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition Requirement of debt ratio to be maintained. + References No definition available. + Details
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