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Commitments for Expenditure

12 Months Ended

Dec. 31, 2023

Commitments for Expenditure [Abstract]

49.	Commitments for Expenditure

(1)	The commitments related to acquisition of property, plant and equipment as of December 31, 2022 and 2023 are as follows:


		2022				2023
Contracts		Commitment amounts		Remaining liability balances		Commitment amounts		Remaining liability balances
		In millions of won
Purchase of cable (PVC, 1C, 2000SQ) 153,000M and others (Shin-Bupyung-Youngseo)	￦		57,203		12,595		57,226		417
Purchase of cable (PVC, 1C, 2500SQ) 103,374M and others (Bukdangjin-Shin-Tangjung)			50,151		37,638		51,796		20,661
Purchase of GIS (362kV, 6300A, 63kA) 23CB – Youngseo S/S			37,168		16,788		37,168		15,109
Purchase of GIS (362kV, 6300A, 63kA) 27CB – Kwangyang S/S			37,744		140		37,744		140
Purchase of cable (PVC, 1C, 2500SQ) 100,548M and others (Kyungin Construction)			58,269		3,883		58,271		746
Purchase of GIS (362kV, 6300A, 63kA) 25CB – Migeum S/S			33,841		25,641		35,136		20,370
Purchase of cable (PVC, 1C, 2000SQ) 5,862M and others (Baekun-Gwangyanghang)			35,949		3,232		35,016		703
Concrete pole (10M, general purpose, 350KGF) 126,948 ea and five other equipments (unit price contract)			202,795		95,428		—		—
Purchase of GIS (362KV, 6300A, 63KA) Type 19 – Shinyangsan S/S			31,834		17,334		32,460		5,635
Purchase of cable (PVC, 1C, 2500SQ) 57,868M and others (Goduk-Seoansung)			40,937		3,748		40,937		654
Purchase of cable (PVC, 1C, 2000SQ) 87,732M and others (Eulwangboonki)			36,155		10,274		36,446		1,015
Purchase of GIS(362KV,6300A,63KA) Type 18 – Wolsung S/Y			32,090		32,090		32,090		26,742
Purchase of cable (FR CNCO-W,1C,325SQ) 672,300M (unit price contract)			31,387		19,213		—		—
Purchase of cable (TR CNCE-W,1C,325SQ) 1,342,000M (unit price contract)			75,620		40,497		—		—
Purchase of cable (TR CNCE-W,1C,600SQ) 377,000M (unit price contract)			31,851		17,478		—		—
Purchase of cable (TR CNCE-W/AL,1C,400SQ) 2,175,300M (unit price contract)			53,064		29,436		—		—
System stabilization ESS equipment (Bubuk S/S) Type 1			222,300		222,300		222,300		145,014
System stabilization ESS equipment (Shinnamwon S/S) Type 1			211,500		211,500		211,500		130,169
System stabilization ESS equipment (Yeongcheon S/S) Type 1			73,104		73,104		73,104		18,604
Concrete pole (10M, general purpose, 500KGF) 111,000 ea and four other equipments			—		—		67,996		39,971
Advanced EType low voltage electronic watt-hour meter 1,311,552 ea			—		—		36,103		—
System stabilization ESS equipment (Yesan S/S) Type 1			—		—		56,403		12,095
System stabilization ESS equipment (Hamyang S/S) Type 1			—		—		35,609		12,870
Construction of Saeul Units (#3,4)			9,800,424		2,455,673		9,800,424		1,113,349
Construction of Shin-Hanul Units (#1,2)(*)			10,327,372		97,889		10,592,760		—
Construction of Shin-Hanul Units (#3,4)			11,007,232		10,858,828		11,680,361		10,935,737
Other 30 contracts			853,941		425,149		1,631,574		1,133,467
Purchase of main machine for Jeju LNG combined			166,287		10,898		166,287		—
Purchase of equipments for the construction project of Boryeong indoor coal storage yard			318,197		287,965		334,932		279,920
Purchase of main machine for Boryeong New Complex Unit 1			—		—		281,600		228,053
Boryeong New Complex Unit 1 Construction Project			—		—		186,358		186,358
Service of designing Taean Units (#9,10)			112,909		12,468		112,909		12,468
Purchase of gas turbine and turbine equipment of Gimpo combined heat & power plant			126,302		32,748		123,495		15,603
Purchase of steam turbine, HRSG and POWER BLOCK of Gimpo combined heat & power plant			221,997		38,714		220,864		214
Construction of Gimpo combined heat & power plant			181,798		56,558		211,372		13,960
Purchase of gas turbines, steam turbines, and accessories for Gumi natural gas power plant			197,983		197,983		197,983		193,578
Purchase of heat recovery boiler and accessories for Gumi natural gas power plant			—		—		65,918		45,299


		2022				2023
Contracts		Commitment amounts		Remaining liability balances		Commitment amounts		Remaining liability balances
		In millions of won
Construction of Gumi natural gas power plant	￦		204,094		204,094		210,393		173,350
Installation of natural gas supply facility at Gumi natural gas power plant			70,620		70,620		70,620		61,799
Purchase of coal handling machine for construction of Samcheok Units (#1,2)			299,048		6,687		312,150		5,682
Purchase of main equipment for Namjeju			140,144		3		140,144		3
Purchase of main equipment for Shin-Sejong combined thermal power plant			234,392		32,621		234,392		8,342
Purchase of Hadong thermal power indoor carboniferous plant			162,814		62,299		167,259		48,495
Purchase of phase 2 power generation facility for Yeongwol fuel cells			86,100		30,527		86,350		219
Purchase of fuel cell power generation facilities for the fifth stage of Shinincheon headquarters			81,960		81,960		81,960		18,290

(*)	As of December 31, 2023, the commitment amounts include the Shin-Hanul Unit #1, construction of which has completed during the year ended December 31, 2022. In addition, as of December 31, 2023, Shin-hanul Unit #2 is in commissioning.

(2)	As of December 31, 2023, details of contracts for inventory purchase commitment are as follows:

The Company imports all of its uranium ore concentrates from sources outside Korea (including the United States, United Kingdom, Kazakhstan, France, Russia, South Africa, Canada and Australia) which are paid for with currencies other than Won, primarily in U.S. dollars. In order to ensure stable supply, the Company entered into long-term and medium-term contracts with various suppliers, and supplements such supplies with purchases of fuels on spot markets. The long-term and medium-term contract periods vary among contractors and the stages

fuel manufacturing process. Contract prices for processing of uranium are generally based on market prices. Contract periods for ore concentrates, conversion, enrichment and design and fabrication are as follows:


Type	Periods		Contracted quantity
Concentrate		2023 ~ 2033	21,400 Ton U3O8
Conversion		2023 ~ 2030	16,300 Ton U
Enrichment		2023 ~ 2032	18,893 Ton SWU

In addition, the contracted quantity of the molded uranium between Korea Hydro & Nuclear Power Co., Ltd. and KEPCO Nuclear Fuel Co., Ltd., which are subsidiaries of the Company, is 1,285 Ton U (contract periods : 2014 ~ 202