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Commitments for Expenditure (Tables)

12 Months Ended

Dec. 31, 2017

Commitments for Expenditure [Abstract]

Commitments for acquisition of property, plant and equipment

The commitments for acquisition of property, plant and equipment as of December 31, 2016 and 2017 are as follows:


		2016				2017
Contracts		Amounts		Balance		Amounts		Balance
		In millions of won
Purchase of switch (25.8kV Eco) 11,395	￦		40,226		28,072		40,226		—
Purchase of switch (25.8kV Eco) 12,450			—		—		50,526		35,494
Purchase of cable (PVC,1C,2000SQ) 153,000M and others (Shin-Bupyung-Youngseo)			50,256		50,256		50,256		42,857
Purchase of cable (PVC, 1C, 2500SQ) 103,374M and others (Bukdangjin-Shintangjung)			42,500		42,500		42,500		29,987
Purchase of GIS (362KV 6300A 63KA) 23CB – YoungseoS/S			—		—		34,500		34,500
Purchase of GIS (362KV 6300A 63KA) 26CB – Shin-gosungS/S			36,950		19,897		36,950		—
Purchase of GIS (362KV 6300A 63KA) 26CB – HwasungS/S			—		—		40,000		29,231
Purchase of GIS (362KV 6300A 63KA) 27CB – KwangyangS/S			37,476		27,760		37,476		18,044
Purchase of GIS (362KV 6300A 63KA) and 1 other 18CB – BukbusanS/S			34,000		20,766		34,000		—
Purchase of GIS (800KV 8000A 50KA) 10CB – Shin-JungbuS/S			63,730		63,730		63,730		44,955
Purchase of transformer (765/345/23kV 666.7MVA, 2TANK) 6 units – Shin-JungbuS/S			37,500		37,500		37,500		37,500
Purchase of cable (TR CNCE-W/AL,1C,400SQ) 4,500,000M			71,986		50,593		71,986		—
Purchase of Concrete Poles (10M, 350KGF) 104,755 and 6 others			129,175		105,905		129,175		—
Purchase of cable (TR CNCE-W/AL,1C,400SQ) 4,645,000M			—		—		78,076		76,762
Purchase of Concrete Poles (10M, 350KGF) 121,900 and 6 others			—		—		133,387		112,981
Advanced E-Type low voltage electricity meter 1,600,000 units			—		—		65,408		64,592
Purchase of Ground Switch (44-D-A125, 600AX4) and 1 other 4,016 units			—		—		56,482		55,990
Construction of Shin-Kori units (#3,4)			6,856,150		—		7,363,514		93,637
Construction of Shin-Kori units (#5,6)			8,625,387		7,286,503		8,625,387		6,757,146
Construction of Shin-Hanwool units (#1,2)			7,982,342		1,157,700		7,982,342		1,015,813
Construction of Shin-Hanwool units (#3,4)			8,261,818		8,170,896		8,261,818		8,097,056
Construction of Yeosu thermal power units (#1)			174,291		1,139		174,291		—
Other 27 contracts			430,204		222,555		262,400		114,041
Purchase of main machine for construction of Seoul Combined units (#1,2)			360,500		300,663		361,203		99,031
Construction of Seoul Combined units (#1,2)			225,205		129,589		227,685		60,568
Electricity construction of Shin-Boryeong units (#1,2)			354,740		26,878		379,115		—
Purchase of smoke eliminating machine for construction of Shin-Boryeong units (#1,2)			121,093		2,023		169,544		36,417
Purchase of coal handling machine for construction of Shin-Boryeong units (#1,2)	￦		146,353		3,543		146,353		—
Service of designing Shin-Boryeong units (#1,2)			126,038		24,333		127,810		16,371
Purchase of main machine for construction of Shin-Boryeong units (#1,2)			851,132		10,746		866,065		4,981
Construction of Shin-Boryeong units (#1,2)			288,438		17,828		316,190		23,100
Purchase of furnace for construction of Shin-Seocheon thermal power plant			—		—		302,030		222,555
Purchase of turbine generator for construction of Shin-Seocheon thermal power plant			—		—		104,402		83,522
Electricity construction of Shin-Seocheon thermal power plant			—		—		200,453		196,993
Purchase of main machine for Jeju LNG combined			—		—		166,287		15,409
Purchase of coal handling machine for construction of Taean (#9,10) and IGCC units (conditional contract for installation)			192,945		38,218		193,375		5,129
Purchase of furnace for construction of Taean units (#9,10)			584,148		46,059		566,945		33,817
Service of designing Taean units (#9,10)			109,700		18,981		111,322		13,671
Purchase of desulfurization machine for construction of Taean units (#9,10)			92,086		1,017		—		—
Purchase of turbine generator for construction of Taean units (#9,10)			228,794		6,788		205,267		550
Purchase of combined generating machine for construction of Taean IGCC units			208,972		2,102		190,923		—
Purchase of oxygen plant for construction of Taean IGCC units			98,979		221		94,564		199
Service of designing Taean IGCC plant units			44,802		3,342		44,802		2,669
Purchase of gasification plant for construction of Taean IGCC units			457,991		—		456,037		—
Construction of Samcheok units (#1,2)			457,943		15,851		488,347		—
Purchase of furnace for construction of Samcheok units (#1,2)			1,091,303		51,594		1,082,641		5,963
Purchase of coal handling machine for construction of Samcheok units (#1,2)			303,273		155		304,924		52,362
Service of designing Samcheok units (#1,2)			114,047		36,510		114,047		4,745
Purchase of main equipment			152,286		39,248		168,076		—
Landscaping construction and other			—		—		63,110		—
Construction of yard for Andong natural gas power plant			41,961		2,600		41,961		—
Purchase of turbine main equipment for Samcheok units (#1,2)			—		—		215,333		874
Service of designing Dangjin units (#9,10)			122,426		6,125		122,426		—

Commitments for inventory purchase

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


Type	Periods		Contracted amounts
Concentrate		2017 ~ 2030		39,662 Ton U3O8
Transformed		2017 ~ 2030		22,934 Ton U
Enrichment		2017 ~ 2029		25,530 Ton SWU
Molded		2017 ~ 2022		2,004 Ton U