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Consolidated Subsidiaries - Summary of Consolidated Subsidiaries (Parentheticals) (Details)

12 Months Ended

Jun. 24, 2022

Dec. 31, 2022

Dec. 31, 2021

KEPCO Engineering & Construction Company, Inc.

Disclosure of subsidiaries [line items]

Proportion of ownership percentage

^[1]

65.77%

65.77%

Sale of shares held percentage

14.77%

Percentage of Effective Percentage Ownership Holding In Subsidiary

66.08%

PT. Cirebon Power Service

Disclosure of subsidiaries [line items]

Proportion of ownership percentage

^[2]

27.50%

27.50%

Description of Reason for Subsidiary Included in in the Consolidated Financial Statements

50.00%

KOSPO Youngnam Power Co., Ltd.

Disclosure of subsidiaries [line items]

Proportion of ownership percentage

^[3]

50.00%

50.00%

Elara Investment Holdings, LLC

Disclosure of subsidiaries [line items]

Proportion of ownership percentage

^[4]

0.10%

0.10%

Description of Reason for Subsidiary Included in in the Consolidated Financial Statements

50.00%

Columboola Solar Farm Hold Co Pty., Ltd. [Member]

Disclosure of subsidiaries [line items]

Proportion of ownership percentage

^[5]

74.04%

0.00%

Percentage of voting equity interests acquired

100.00%

[1]	Considering treasury stocks, the effective percentage of ownership is 66.08%. The Company is planning to sell part of its shares (14.77%) based on the resolution of the board of directors on June 24, 2022.
[2]	The effective percentage of ownership is less than 50%. However, this subsidiary is included in the consolidated financial statements as the Company obtained the majority of the voting power under the shareholders’ agreement.
[3]	The subsidiary is included in the consolidated financial statements as the Company owns 50%+1 stake and has the ability to appoint a majority of the board members under the shareholders’ agreement.
[4]	The effective percentage of ownership is less than 50%. However, this subsidiary is included in the consolidated financial statements as the Company has control over the board of directors under the shareholders’ agreement.
[5]	Excluding preferred stocks, the percentage of ownership with voting rights is 100%.

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The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]]

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The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]]

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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