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Contingencies and Commitments - Summary of Blank Check And Assets Provided As Collaterals Or Pledges To Financial Institutions By The Company Explanatory (Details) - 12 months ended Dec. 31, 2024 JD in Thousands, $ in Thousands, ₩ in Millions | USD ($) | KRW (₩) | JOD (JD)
--- | --- | --- | ---
Property, plant and equipment and others |  |  |  |
Disclsoure of assets pledged as collateral [Line Items] |  |  |  |
Name of Guarantor |  | Mira Power Limited |  |
Name of Guarantee |  | International Finance Corporation and others |  |
Value of collateral | $ |  | $ 264,800 |  |
Description of assets pledged as collateral description | [1] | Collateral for borrowings |  |
Property, plant and equipment and others |  |  |  |
Disclsoure of assets pledged as collateral [Line Items] |  |  |  |
Name of Guarantor |  | Tamra Offshore Wind Power Co., Ltd. |  |
Name of Guarantee |  | Kyobo Life Insurance Co., Ltd. and others |  |
Value of collateral |  |  | ₩ 171,600 |
Description of assets pledged as collateral description | [1] | Collateral for borrowings |  |
Cash and cash equivalents |  |  |  |
Disclsoure of assets pledged as collateral [Line Items] |  |  |  |
Name of Guarantor |  | Gyeonggi Green Energy Co., Ltd. |  |
Name of Guarantee |  | Korea Development Bank and others |  |
Value of collateral |  |  | 327,080 |
Description of assets pledged as collateral description | [2] | Collateral for borrowings |  |
Property, plant and equipment and others |  |  |  |
Disclsoure of assets pledged as collateral [Line Items] |  |  |  |
Name of Guarantor |  | Commerce and Industry Energy Co., Ltd. |  |
Name of Guarantee |  | IBK and others |  |
Value of collateral |  |  | 110,500 |
Description of assets pledged as collateral description | [2] | Collateral for borrowings |  |
Cash and cash equivalents |  |  |  |
Disclsoure of assets pledged as collateral [Line Items] |  |  |  |
Name of Guarantor |  | Jeongam Wind Power Co., Ltd. |  |
Name of Guarantee |  | KDB Capital Corporation and others |  |
Value of collateral |  |  | 230,716 |
Description of assets pledged as collateral description | [2] | Collateral for borrowings |  |
Property, plant and equipment and others |  |  |  |
Disclsoure of assets pledged as collateral [Line Items] |  |  |  |
Name of Guarantor |  | Gyeongju Wind Power Co., Ltd. |  |
Name of Guarantee |  | Shinhan Bank and others |  |
Value of collateral |  |  | 68,400 |
Description of assets pledged as collateral description | [2] | Collateral for borrowings |  |
Property, plant and equipment and others |  |  |  |
Disclsoure of assets pledged as collateral [Line Items] |  |  |  |
Name of Guarantor |  | Korea Offshore Wind Power Co., Ltd. |  |
Name of Guarantee |  | Woori Bank and others |  |
Value of collateral |  |  | 159,000 |
Description of assets pledged as collateral description | [1],[2] | Collateral for borrowings |  |
Finance Lease receivable and property, plant and equipment and others |  |  |  |
Disclsoure of assets pledged as collateral [Line Items] |  |  |  |
Name of Guarantor |  | Qatrana Electric Power Company |  |
Name of Guarantee |  | The Islamic Development Bank and others |  |
Value of collateral | JD |  |  |  | JD 136,623
Description of assets pledged as collateral description | [1] | Collateral for borrowings |  |
Finance Lease receivable and property, plant and equipment and others |  |  |  |
Disclsoure of assets pledged as collateral [Line Items] |  |  |  |
Name of Guarantor |  | KST Electric Power Company, S.A.P.I. de C.V. |  |
Name of Guarantee |  | Export–Import Bank of Korea and others |  |
Value of collateral | $ |  | $ 401,277 |  |
Description of assets pledged as collateral description | [1] | Collateral for debt securities |  |
Cash and cash equivalents |  |  |  |
Disclsoure of assets pledged as collateral [Line Items] |  |  |  |
Name of Guarantor |  | Incheon Fuel Cell Co., Ltd. |  |
Name of Guarantee |  | Kookmin Bank and others |  |
Value of collateral |  |  | 276,960 |
Description of assets pledged as collateral description | [2] | Collateral for borrowings |  |
Property, plant and equipment and others |  |  |  |
Disclsoure of assets pledged as collateral [Line Items] |  |  |  |
Name of Guarantor |  | K-SOLAR SHINAN Co., Ltd. |  |
Name of Guarantee |  | Kyobo Life Insurance Co., Ltd. and others |  |
Value of collateral |  |  | 329,736 |
Description of assets pledged as collateral description | [1] | Collateral for borrowings |  |
Cash and cash equivalents |  |  |  |
Disclsoure of assets pledged as collateral [Line Items] |  |  |  |
Name of Guarantor |  | KOSPO Youngnam Power Co., Ltd. |  |
Name of Guarantee |  | Shinhan Bank and others |  |
Value of collateral |  |  | 744,120 |
Description of assets pledged as collateral description | [2] | Collateral for borrowings |  |
Property, plant and equipment and others |  |  |  |
Disclsoure of assets pledged as collateral [Line Items] |  |  |  |
Name of Guarantor |  | Jeju Hanlim Offshore Wind Co., Ltd. |  |
Name of Guarantee |  | Kookmin Bank and others |  |
Value of collateral |  |  | 11,932 |
Description of assets pledged as collateral description | [2] | Collateral for borrowings |  |
Property, plant and equipment and others |  |  |  |
Disclsoure of assets pledged as collateral [Line Items] |  |  |  |
Name of Guarantor |  | Western Power Changgi Solar Co., Ltd. |  |
Name of Guarantee |  | Samsung Life Insurance and others |  |
Value of collateral |  |  | 54,000 |
Description of assets pledged as collateral description | [2] | Collateral for borrowings |  |
Trade receivable and others |  |  |  |
Disclsoure of assets pledged as collateral [Line Items] |  |  |  |
Name of Guarantor |  | J Wind First, LLC |  |
Name of Guarantee |  | Woori Bank |  |
Value of collateral |  |  | 55,000 |
Description of assets pledged as collateral description | [1],[2] | Collateral for borrowings |  |
Property, plant and equipment and others |  |  |  |
Disclsoure of assets pledged as collateral [Line Items] |  |  |  |
Name of Guarantor |  | Yeongdeok Sunrise Wind Power Co., Ltd. |  |
Name of Guarantee |  | Korea Development Bank and others |  |
Value of collateral |  |  | ₩ 96,240 |
Description of assets pledged as collateral description | [2] | Collateral for borrowings |  |
Trade receivable and others |  |  |  |
Disclsoure of assets pledged as collateral [Line Items] |  |  |  |
Name of Guarantor |  | Mangilao Intermediate Holdings LLC |  |
Name of Guarantee |  | Mizuho Bank |  |
Value of collateral | $ |  | $ 86,132 |  |
Description of assets pledged as collateral description | [2] | Collateral for borrowings |  |
Property, plant and equipment and others |  |  |  |
Disclsoure of assets pledged as collateral [Line Items] |  |  |  |
Name of Guarantor |  | Chitose Solar Power Plant LLC |  |
Name of Guarantee |  | Korea Development Bank |  |
Value of collateral | $ |  | $ 137,656 |  |
Description of assets pledged as collateral description | [1],[2] | Collateral for borrowings |  |
[1] | This is based on the amount of loan commitment limit.
[2] | As of December 31, 2024, the Company has established guarantees for pledge for transfer of rights of long-term borrowings, pledge for insurance claims, pledge for shares, etc.

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