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Provisions

12 Months Ended

Dec. 31, 2023

Disclosure of other provisions [abstract]

26.	Provisions

(1)	Provisions as of December 31, 2022 and 2023 are as follows:


		2022				2023
		Current		Non-current		Current		Non-current

		In millions of won
Employment benefits
Provisions for employment benefits	￦		1,045,058		—		999,691		—
Litigation
Litigation provisions			26,974		154,205		5,299		171,719
Decommissioning cost
Nuclear plants			—		23,035,427		81,684		21,565,203
Spent fuel			415,890		1,011,028		940,585		1,985,149
Radioactive waste			94,158		1,895,849		67,572		1,840,513
PCBs			—		88,359		—		57,944
Other recovery provisions			—		32,770		—		36,082
Others
Power plant regional support program			144,504		—		130,034		—
Transmission regional support program			239,235		—		256,006		—
Provisions for financial guarantee			22,895		44,345		25,534		24,458
Provisions for RPS			24,339		—		36,074		—
Provisions for greenhouse gas emissions obligations			298,876		—		18,672		—
Others			115,122		102,659		92,974		199,976

	￦		2,427,051		26,364,642		2,654,125		25,881,044

(2)	Changes in provisions for the years ended December 31, 2022 and 2023 are as follows:


		2022
		Beginning balance		Increase in provision		Payment			Reversal			Others			Ending balance

		In millions of won
Employment benefits
Provisions for employment benefits	￦		1,048,939		997,281		(1,001,283	)		—			121			1,045,058
Litigation
Litigation provisions			114,718		112,797		(39,633	)		(6,360	)		(343	)		181,179
Decommissioning cost
Nuclear plants			19,461,461		3,630,830		(56,813	)		—			(51	)		23,035,427
Spent fuel			1,350,662		493,943		(417,687	)		—			—			1,426,918
Radioactive waste			1,832,535		221,629		(64,157	)		—			—			1,990,007
PCBs			103,665		1,949		(17,156	)		(99	)		—			88,359
Other recovery provisions			30,231		2,093		(165	)		(751	)		1,362			32,770
Others
Power plant regional support program			146,588		52,470		(54,554	)		—			—			144,504
Transmission regional support program			250,288		176,424		(187,477	)		—			—			239,235
Provisions for financial guarantee			80,841		4,738		(17,789	)		—			(550	)		67,240
Provisions for RPS			—		587,586		(556,993	)		(6,254	)		—			24,339
Provisions for greenhouse gas emissions obligations			655,544		387,299		(590,172	)		(33,596	)		(120,199	)		298,876
Others			271,828		4,447		(39,566	)		(19,853	)		925			217,781

	￦		25,347,300		6,673,486		(3,043,445	)		(66,913	)		(118,735	)		28,791,693


		2023
		Beginning balance		Increase in provision		Payment			Reversal			Others			Ending balance

		In millions of won
Employment benefits
Provisions for employment benefits	￦		1,045,058		834,102		(877,933	)		(1,536	)		—			999,691
Litigation
Litigation provisions			181,179		151,189		(67,478	)		(87,872	)		—			177,018
Decommissioning cost
Nuclear plants			23,035,427		572,379		(62,035	)		(1,898,935	)		51			21,646,887
Spent fuel			1,426,918		1,877,827		(379,011	)		—			—			2,925,734
Radioactive waste			1,990,007		89,054		(86,823	)		(84,153	)		—			1,908,085
PCBs			88,359		1,699		(17,100	)		(15,014	)		—			57,944
Other recovery provisions			32,770		1,319		(432	)		—			2,425			36,082
Others
Power plant regional support program			144,504		51,814		(66,284	)		—			—			130,034
Transmission regional support program			239,235		177,520		(160,749	)		—			—			256,006
Provisions for financial guarantee			67,240		10,215		(25,174	)		(2,251	)		(38	)		49,992
Provisions for RPS			24,339		620,855		(609,120	)		—			—			36,074
Provisions for greenhouse gas emissions obligations			298,876		77,207		(298,859	)		(58,552	)		—			18,672
Others			217,781		181,756		(101,601	)		(3,816	)		(1,170	)		292,950

	￦		28,791,693		4,646,936		(2,752,599	)		(2,152,129	)		1,268			28,535,169

(3)	Greenhouse gas emissions rights and obligations:

(i)

Allowances received free of charge from the government for each planned period as of December 31, 2023 are as follows:


	3rd planned period
	2021		2022		2023		2024		2025		Total

	In ten thousands of tons(tCO2-eq)
Allowances received free of charge from the government		—		14,696		14,776		10,603		10,603		50,678

(ii)

Changes in greenhouse gas emissions rights for the years ended December 31, 2022 and 2023 are as follows:


	2022
	3rd planned period
	2021						2022						2023					2024				2025				Total
	Quantity			Amount			Quantity			Amount			Quantity		Amount			Quantity		Amount		Quantity		Amount		Quantity			Amount

	In ten thousands tons(tCO2-eq), millions of Won
Beginning (*)		16,433			524,658			14,942			62,735			11,166		8,529			3,671		—		3,696		6,873		49,908			602,795
Purchase (Sell)		1,191			267,433			1,343			272,824			32		6,315			35		7,185		—		—		2,601			553,757
Government submission		(17,602	)		(580,807	)		(838	)		(173,145	)		—		245			—		—		—		—		(18,440	)		(753,707	)
Borrowing (carryforward)		(22	)		(3,298	)		286			45,847			48		12,225			22		5,699		—		—		334			60,473
Others		—			(207,986	)		—			(16,256	)		—		(8,529	)		—		—		—		5,419		—			(227,352	)

Ending		—			—			15,733			192,005			11,246		18,785			3,728		12,884		3,696		12,292		34,403			235,966

(*)

Changes such as additional allowances or cancellation of allowances are reflected.


	2023
	3rd planned period
	2022						2023						2024					2025					Total
	Quantity			Amount			Quantity			Amount			Quantity		Amount			Quantity		Amount			Quantity			Amount
	In ten thousands tons(tCO2-eq), millions of Won
Beginning (*)		14,704			192,005			14,204			18,785			8,088		12,884			8,065		12,292			45,061			235,966
Purchase (Sell)		1,315			135,040			707			67,506			73		14,839			—		—			2,095			217,385
Government Submission		(15,972	)		(302,918	)		(484	)		(39,837	)		—		—			—		—			(16,456	)		(342,755	)
Carry Forward (Borrowing)		(45	)		(24,127	)		(231	)		(28,266	)		568		79,430			—		—			292			27,037
Reclassification		(2	)		—			—			6,940			—		(7, 185	)		—		(5,419	)		(2	)		(5,664	)

Ending		—			—			14,196			25,128			8,729		99,968			8,065		6,873			30,990			131,969

(*)

Changes such as additional allowances or cancellation of allowances are reflected.

(iii)

The Company does not have greenhouse gas emissions rights pledged as collateral as of December 31, 2023.

(iv)

The Company does not hold any greenhouse gas emissions rights prepared for generating a profit from short-term fluctuations in price as of December 31, 2023.

(v)

Estimated greenhouse gas emission of the Company for the year ended December 31, 2023 is 14,941 ten thousand tons.