Commitments for Expenditure (Tables)

12 Months Ended

Dec. 31, 2022

Commitments for Expenditure [Abstract]

Summary of Commitments For Acquisition of Property, Plant and Equipment

(1)	The commitments related to acquisition of property, plant and equipment as of December 31, 2021 and 2022 are as follows:


		2021				2022
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)	￦		57,046		16,240		57,203		12,595
Purchase of cable (PVC, 1C, 2500SQ) 103,374M and others (Bukdangjin-Shin-Tangjung)			46,616		34,102		50,151		37,638
Purchase of GIS (362kV, 6300A, 63kA) 23CB – Youngseo S/S			36,143		25,292		37,168		16,788
Purchase of GIS (362kV, 6300A, 63kA) 26CB – Hwasung S/S			40,010		5,540		—		—
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			56,860		34,576		58,269		3,883
Purchase of GIS (362kV, 6300A, 63kA) 25CB – Migeum S/S			32,000		26,700		33,841		25,641
Advanced E-Type low-pressure electronic power meter 1,320,000 ea			65,972		23,262		—		—
Purchase of cable (PVC, 1C, 2000SQ) 5,862M and others (Baekun-Gwangyanghang)			34,423		23,297		35,949		3,232
Purchase of cable (TR CNCE-W,1C,325SQ) 1,016,000M			66,581		40,254		—		—
Purchase of cable (TR CNCE-W,1C,600SQ) 485,000M			46,194		37,810		—		—
Purchase of cable (TR CNCE-W/AL,1C,400SQ) 3,303,900M			87,382		83,628		—		—
Concrete pole (10M, general purpose, 350KGF) 126,948 ea and five other equipments			188,338		168,456		202,795		95,428
Purchase of GIS (362KV, 6300A, 63KA) 19 – Shinyangsan S/S			31,464		31,464		31,834		17,334
Purchase of cable (PVC, 1C, 2500SQ) 57,868M and others (Goduk-Seoansung)			—		—		40,937		3,748
Purchase of cable (PVC, 1C, 2000SQ) 87,732M and others (Eulwangboonki)			—		—		36,155		10,274
GIS(362KV,6300A,63KA) 18 – Wolsung S/Y			—		—		32,090		32,090
Purchase of cable (FR CNCO-W,1C,325SQ) 672,300M			—		—		31,387		19,213
Purchase of cable (TR CNCE-W,1C,325SQ) 1,342,000M			—		—		75,620		40,497
Purchase of cable (TR CNCE-W,1C,600SQ) 377,000M			—		—		31,851		17,478
Purchase of cable (TR CNCE-W/AL,1C,400SQ) 2,175,300M			—		—		53,064		29,436
System stabilization ESS equipment (Bubuk S/S) 1 Type			—		—		222,300		222,300
System stabilization ESS equipment (Shinnamwon S/S) Type 1			—		—		211,500		211,500
System stabilization ESS equipment (Yeongcheon S/S) Type 1			—		—		73,104		73,104
Construction of Saeul Units (#3,4)			9,800,424		3,479,667		9,800,424		2,455,673
Construction of Shin-Hanul Units (#1,2)			9,745,123		—		10,327,372		97,889
Other 36 contracts			792,485		620,593		853,941		425,149
Service of designing Seoul Combined Units (#1,2)			31,841		934		31,148		—
Purchase of furnace for construction of Shin-Seocheon thermal power plant			305,209		7,722		305,209		5,132
Purchase of turbine generator for construction of Shin-Seocheon thermal power plant			105,226		6,301		107,333		6,214
Purchase of main machine for Jeju LNG combined			166,287		10,972		166,287		10,898
Purchase of equipments for the construction project of Boryeong indoor coal storage yard			317,350		317,350		318,197		287,965
Service of designing Taean Units (#9,10)			112,909		12,623		112,909		12,468
Purchase of gas turbine and turbine equipment of Gimpo combined heat & power plant			126,302		61,735		126,302		32,748
Purchase of steam turbine, HRSG and POWER BLOCK of Gimpo combined heat & power plant			214,053		138,244		221,997		38,714
Construction of Gimpo combined heat & power plant			130,015		86,323		181,798		56,558
Purchase of gas turbines, steam turbines, and accessories for Gumi natural gas power plant			—		—		197,983		197,983
Construction of Gumi natural gas power plant			—		—		204,094		204,094
Installation of natural gas supply facility at Gumi natural gas power plant			—		—		70,620		70,620
Purchase of coal handling machine for construction of Samcheok Units (#1,2)			286,571		6,215		299,048		6,687


		2021				2022
Contracts		Commitment amounts		Remaining liability balances		Commitment amounts		Remaining liability balances
		In millions of won
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		200,122		234,392		32,472
Purchase of Hadong thermal power indoor carboniferous plant			148,800		129,042		162,814		105,504
Purchase of phase 1 power generation facility for Yeongwol fuel cells			88,449		1,523		—		—
Purchase of phase 2 power generation facility for Yeongwol fuel cells			—		—		86,100		30,527
Purchase of fuel cell power generation facilities for the fifth stage of Shinincheon headquarters			—		—		81,960		81,960

Summary of Commitments For Inventory Purchase

Contract periods for ore concentrates, conversion, enrichment and design and fabrication are as follows:


Type	Periods		Contracted quantity
Concentrate		2022 ~ 2033	26,310 Ton U3O8
Transformed		2022 ~ 2030	19,012 Ton U
Enrichment		2022 ~ 2032	21,434 Ton SWU