Property, Plant And Equipment

12 Months Ended

Dec. 31, 2011

Property, Plant And Equipment

10. Property, Plant and Equipment

	December 31, 2011
	Estimated Useful Life	Duke Energy			Duke Energy Carolinas			Duke Energy Ohio			Duke Energy Indiana
	(Years)	(in millions)
Land	—	$	745		$	372		$	135		$	88
Plant—Regulated
Electric generation, distribution and transmission(a)	8 – 125		38,330			26,466			3,595			8,269
Natural gas transmission and distribution(a)	12 – 60		1,927			—			1,927			—
Other buildings and improvements(a)	25 – 100		672			428			106			138
Plant—Unregulated
Electric generation, distribution and transmission(a)	8 – 100		5,464			—			3,997			—
Other buildings and improvements(a)	18 – 40		2,095			—			192			—
Nuclear fuel	—		1,213			1,213			—			—
Equipment(a)	3 – 33		863			248			168			134
Construction in process(a)	—		7,664			3,774			255			2,992
Other(a)	5 – 33		2,477			499			257			170
Total property, plant and equipment			61,450			33,000			10,632			11,791
Total accumulated depreciation—regulated(b),(c)			(16,630	)		(11,349	)		(1,916	)		(3,393	)
Total accumulated depreciation—unregulated(c)(d)			(2,159	)		—			(678	)		—
Total net property, plant and equipment		$	42,661		$	21,651		$	8,038		$	8,398

(a) Includes capitalized leases of $444 million, $53 million, $82 million, and $33 million at Duke Energy, Duke Energy Carolinas, Duke Energy Ohio, and Duke Energy Indiana, respectively.

(b) Includes $578 million of accumulated amortization of nuclear fuel at Duke Energy and Duke Energy Carolinas.

(c) Includes accumulated amortization of capitalized leases of $28 million, an insignificant amount, $11 million and $6 million at Duke Energy, Duke Energy Carolinas, Duke Energy Ohio, and Duke Energy Indiana, respectively.

(d) Includes accumulated depreciation of VIEs of $62 million at December 31, 2011 at Duke Energy.

	December 31, 2010
	Estimated Useful Life	Duke Energy			Duke Energy Carolinas			Duke Energy Ohio			Duke Energy Indiana
	(Years)	(in millions)
Land(a)	—	$	743		$	357		$	133		$	89
Plant—Regulated
Electric generation, distribution and transmission(a)	8 – 125		36,744			24,980			3,483			8,282
Natural gas transmission and distribution(a)	12 – 60		1,815			—			1,815			—
Other buildings and improvements(a)	25 – 100		610			366			111			132
Plant—Unregulated
Electric generation, distribution and transmission(a)	8 – 100		5,256			—			3,960			—
Other buildings and improvements(a)	20 – 90		2,108			1			188			—
Nuclear fuel	—		1,176			1,176			—			—
Equipment(a)	3 – 33		718			166			147			128
Construction in process(a)	—		7,015			3,677			182			2,426
Other(a)	5 – 33		2,354			468			240			156
Total property, plant and equipment			58,539			31,191			10,259			11,213
Total accumulated depreciation—regulated(b),(c)			(16,273	)		(11,126	)		(1,832	)		(3,341	)
Total accumulated depreciation—unregulated(c)(d)			(1,922	)		—			(579	)		—
Total net property, plant and equipment		$	40,344		$	20,065		$	7,848		$	7,872

(a) Includes capitalized leases of $414 million, $134 million, and $53 million at Duke Energy, Duke Energy Ohio, and Duke Energy Indiana, respectively.

(b) Includes $667 million of accumulated amortization of nuclear fuel at Duke Energy and Duke Energy Carolinas.

(c) Includes accumulated amortization of capitalized leases of $31 million, $17 million and $10 million at Duke Energy, Duke Energy Ohio, and Duke Energy Indiana, respectively.

(d) Includes accumulated depreciation of VIEs of $45 million at December 31, 2010 at Duke Energy.

The following table presents capitalized interest, which includes the debt component of AFUDC, for the years ended December 31, 2011, 2010, and 2009 respectively:

	Years Ended December 31,
	2011		2010		2009
	(in millions)
Duke Energy	$	166	$	167	$	102
Duke Energy Carolinas		78		83		65
Duke Energy Ohio		9		8		4
Duke Energy Indiana		33		19		13

Duke Energy Corp [Member]

Property, Plant And Equipment

10. Property, Plant and Equipment

	December 31, 2011
	Estimated Useful Life	Duke Energy			Duke Energy Carolinas			Duke Energy Ohio			Duke Energy Indiana
	(Years)	(in millions)
Land	—	$	745		$	372		$	135		$	88
Plant—Regulated
Electric generation, distribution and transmission(a)	8 – 125		38,330			26,466			3,595			8,269
Natural gas transmission and distribution(a)	12 – 60		1,927			—			1,927			—
Other buildings and improvements(a)	25 – 100		672			428			106			138
Plant—Unregulated
Electric generation, distribution and transmission(a)	8 – 100		5,464			—			3,997			—
Other buildings and improvements(a)	18 – 40		2,095			—			192			—
Nuclear fuel	—		1,213			1,213			—			—
Equipment(a)	3 – 33		863			248			168			134
Construction in process(a)	—		7,664			3,774			255			2,992
Other(a)	5 – 33		2,477			499			257			170
Total property, plant and equipment			61,450			33,000			10,632			11,791
Total accumulated depreciation—regulated(b),(c)			(16,630	)		(11,349	)		(1,916	)		(3,393	)
Total accumulated depreciation—unregulated(c)(d)			(2,159	)		—			(678	)		—
Total net property, plant and equipment		$	42,661		$	21,651		$	8,038		$	8,398

(a) Includes capitalized leases of $444 million, $53 million, $82 million, and $33 million at Duke Energy, Duke Energy Carolinas, Duke Energy Ohio, and Duke Energy Indiana, respectively.

(b) Includes $578 million of accumulated amortization of nuclear fuel at Duke Energy and Duke Energy Carolinas.

(c) Includes accumulated amortization of capitalized leases of $28 million, an insignificant amount, $11 million and $6 million at Duke Energy, Duke Energy Carolinas, Duke Energy Ohio, and Duke Energy Indiana, respectively.

(d) Includes accumulated depreciation of VIEs of $62 million at December 31, 2011 at Duke Energy.

	December 31, 2010
	Estimated Useful Life	Duke Energy			Duke Energy Carolinas			Duke Energy Ohio			Duke Energy Indiana
	(Years)	(in millions)
Land(a)	—	$	743		$	357		$	133		$	89
Plant—Regulated
Electric generation, distribution and transmission(a)	8 – 125		36,744			24,980			3,483			8,282
Natural gas transmission and distribution(a)	12 – 60		1,815			—			1,815			—
Other buildings and improvements(a)	25 – 100		610			366			111			132
Plant—Unregulated
Electric generation, distribution and transmission(a)	8 – 100		5,256			—			3,960			—
Other buildings and improvements(a)	20 – 90		2,108			1			188			—
Nuclear fuel	—		1,176			1,176			—			—
Equipment(a)	3 – 33		718			166			147			128
Construction in process(a)	—		7,015			3,677			182			2,426
Other(a)	5 – 33		2,354			468			240			156
Total property, plant and equipment			58,539			31,191			10,259			11,213
Total accumulated depreciation—regulated(b),(c)			(16,273	)		(11,126	)		(1,832	)		(3,341	)
Total accumulated depreciation—unregulated(c)(d)			(1,922	)		—			(579	)		—
Total net property, plant and equipment		$	40,344		$	20,065		$	7,848		$	7,872

(a) Includes capitalized leases of $414 million, $134 million, and $53 million at Duke Energy, Duke Energy Ohio, and Duke Energy Indiana, respectively.

(b) Includes $667 million of accumulated amortization of nuclear fuel at Duke Energy and Duke Energy Carolinas.

(c) Includes accumulated amortization of capitalized leases of $31 million, $17 million and $10 million at Duke Energy, Duke Energy Ohio, and Duke Energy Indiana, respectively.

(d) Includes accumulated depreciation of VIEs of $45 million at December 31, 2010 at Duke Energy.

The following table presents capitalized interest, which includes the debt component of AFUDC, for the years ended December 31, 2011, 2010, and 2009 respectively:

	Years Ended December 31,
	2011		2010		2009
	(in millions)
Duke Energy	$	166	$	167	$	102
Duke Energy Carolinas		78		83		65
Duke Energy Ohio		9		8		4
Duke Energy Indiana		33		19		13

Duke Energy Carolinas [Member]

Property, Plant And Equipment

10. Property, Plant and Equipment

	December 31, 2011
	Estimated Useful Life	Duke Energy			Duke Energy Carolinas			Duke Energy Ohio			Duke Energy Indiana
	(Years)	(in millions)
Land	—	$	745		$	372		$	135		$	88
Plant—Regulated
Electric generation, distribution and transmission(a)	8 – 125		38,330			26,466			3,595			8,269
Natural gas transmission and distribution(a)	12 – 60		1,927			—			1,927			—
Other buildings and improvements(a)	25 – 100		672			428			106			138
Plant—Unregulated
Electric generation, distribution and transmission(a)	8 – 100		5,464			—			3,997			—
Other buildings and improvements(a)	18 – 40		2,095			—			192			—
Nuclear fuel	—		1,213			1,213			—			—
Equipment(a)	3 – 33		863			248			168			134
Construction in process(a)	—		7,664			3,774			255			2,992
Other(a)	5 – 33		2,477			499			257			170
Total property, plant and equipment			61,450			33,000			10,632			11,791
Total accumulated depreciation—regulated(b),(c)			(16,630	)		(11,349	)		(1,916	)		(3,393	)
Total accumulated depreciation—unregulated(c)(d)			(2,159	)		—			(678	)		—
Total net property, plant and equipment		$	42,661		$	21,651		$	8,038		$	8,398

(a) Includes capitalized leases of $444 million, $53 million, $82 million, and $33 million at Duke Energy, Duke Energy Carolinas, Duke Energy Ohio, and Duke Energy Indiana, respectively.

(b) Includes $578 million of accumulated amortization of nuclear fuel at Duke Energy and Duke Energy Carolinas.

(c) Includes accumulated amortization of capitalized leases of $28 million, an insignificant amount, $11 million and $6 million at Duke Energy, Duke Energy Carolinas, Duke Energy Ohio, and Duke Energy Indiana, respectively.

(d) Includes accumulated depreciation of VIEs of $62 million at December 31, 2011 at Duke Energy.

	December 31, 2010
	Estimated Useful Life	Duke Energy			Duke Energy Carolinas			Duke Energy Ohio			Duke Energy Indiana
	(Years)	(in millions)
Land(a)	—	$	743		$	357		$	133		$	89
Plant—Regulated
Electric generation, distribution and transmission(a)	8 – 125		36,744			24,980			3,483			8,282
Natural gas transmission and distribution(a)	12 – 60		1,815			—			1,815			—
Other buildings and improvements(a)	25 – 100		610			366			111			132
Plant—Unregulated
Electric generation, distribution and transmission(a)	8 – 100		5,256			—			3,960			—
Other buildings and improvements(a)	20 – 90		2,108			1			188			—
Nuclear fuel	—		1,176			1,176			—			—
Equipment(a)	3 – 33		718			166			147			128
Construction in process(a)	—		7,015			3,677			182			2,426
Other(a)	5 – 33		2,354			468			240			156
Total property, plant and equipment			58,539			31,191			10,259			11,213
Total accumulated depreciation—regulated(b),(c)			(16,273	)		(11,126	)		(1,832	)		(3,341	)
Total accumulated depreciation—unregulated(c)(d)			(1,922	)		—			(579	)		—
Total net property, plant and equipment		$	40,344		$	20,065		$	7,848		$	7,872

(a) Includes capitalized leases of $414 million, $134 million, and $53 million at Duke Energy, Duke Energy Ohio, and Duke Energy Indiana, respectively.

(b) Includes $667 million of accumulated amortization of nuclear fuel at Duke Energy and Duke Energy Carolinas.

(c) Includes accumulated amortization of capitalized leases of $31 million, $17 million and $10 million at Duke Energy, Duke Energy Ohio, and Duke Energy Indiana, respectively.

(d) Includes accumulated depreciation of VIEs of $45 million at December 31, 2010 at Duke Energy.

The following table presents capitalized interest, which includes the debt component of AFUDC, for the years ended December 31, 2011, 2010, and 2009 respectively:

	Years Ended December 31,
	2011		2010		2009
	(in millions)
Duke Energy	$	166	$	167	$	102
Duke Energy Carolinas		78		83		65
Duke Energy Ohio		9		8		4
Duke Energy Indiana		33		19		13

Duke Energy Ohio [Member]

Property, Plant And Equipment

10. Property, Plant and Equipment

	December 31, 2011
	Estimated Useful Life	Duke Energy			Duke Energy Carolinas			Duke Energy Ohio			Duke Energy Indiana
	(Years)	(in millions)
Land	—	$	745		$	372		$	135		$	88
Plant—Regulated
Electric generation, distribution and transmission(a)	8 – 125		38,330			26,466			3,595			8,269
Natural gas transmission and distribution(a)	12 – 60		1,927			—			1,927			—
Other buildings and improvements(a)	25 – 100		672			428			106			138
Plant—Unregulated
Electric generation, distribution and transmission(a)	8 – 100		5,464			—			3,997			—
Other buildings and improvements(a)	18 – 40		2,095			—			192			—
Nuclear fuel	—		1,213			1,213			—			—
Equipment(a)	3 – 33		863			248			168			134
Construction in process(a)	—		7,664			3,774			255			2,992
Other(a)	5 – 33		2,477			499			257			170
Total property, plant and equipment			61,450			33,000			10,632			11,791
Total accumulated depreciation—regulated(b),(c)			(16,630	)		(11,349	)		(1,916	)		(3,393	)
Total accumulated depreciation—unregulated(c)(d)			(2,159	)		—			(678	)		—
Total net property, plant and equipment		$	42,661		$	21,651		$	8,038		$	8,398

(a) Includes capitalized leases of $444 million, $53 million, $82 million, and $33 million at Duke Energy, Duke Energy Carolinas, Duke Energy Ohio, and Duke Energy Indiana, respectively.

(b) Includes $578 million of accumulated amortization of nuclear fuel at Duke Energy and Duke Energy Carolinas.

(c) Includes accumulated amortization of capitalized leases of $28 million, an insignificant amount, $11 million and $6 million at Duke Energy, Duke Energy Carolinas, Duke Energy Ohio, and Duke Energy Indiana, respectively.

(d) Includes accumulated depreciation of VIEs of $62 million at December 31, 2011 at Duke Energy.

	December 31, 2010
	Estimated Useful Life	Duke Energy			Duke Energy Carolinas			Duke Energy Ohio			Duke Energy Indiana
	(Years)	(in millions)
Land(a)	—	$	743		$	357		$	133		$	89
Plant—Regulated
Electric generation, distribution and transmission(a)	8 – 125		36,744			24,980			3,483			8,282
Natural gas transmission and distribution(a)	12 – 60		1,815			—			1,815			—
Other buildings and improvements(a)	25 – 100		610			366			111			132
Plant—Unregulated
Electric generation, distribution and transmission(a)	8 – 100		5,256			—			3,960			—
Other buildings and improvements(a)	20 – 90		2,108			1			188			—
Nuclear fuel	—		1,176			1,176			—			—
Equipment(a)	3 – 33		718			166			147			128
Construction in process(a)	—		7,015			3,677			182			2,426
Other(a)	5 – 33		2,354			468			240			156
Total property, plant and equipment			58,539			31,191			10,259			11,213
Total accumulated depreciation—regulated(b),(c)			(16,273	)		(11,126	)		(1,832	)		(3,341	)
Total accumulated depreciation—unregulated(c)(d)			(1,922	)		—			(579	)		—
Total net property, plant and equipment		$	40,344		$	20,065		$	7,848		$	7,872

(a) Includes capitalized leases of $414 million, $134 million, and $53 million at Duke Energy, Duke Energy Ohio, and Duke Energy Indiana, respectively.

(b) Includes $667 million of accumulated amortization of nuclear fuel at Duke Energy and Duke Energy Carolinas.

(c) Includes accumulated amortization of capitalized leases of $31 million, $17 million and $10 million at Duke Energy, Duke Energy Ohio, and Duke Energy Indiana, respectively.

(d) Includes accumulated depreciation of VIEs of $45 million at December 31, 2010 at Duke Energy.

The following table presents capitalized interest, which includes the debt component of AFUDC, for the years ended December 31, 2011, 2010, and 2009 respectively:

	Years Ended December 31,
	2011		2010		2009
	(in millions)
Duke Energy	$	166	$	167	$	102
Duke Energy Carolinas		78		83		65
Duke Energy Ohio		9		8		4
Duke Energy Indiana		33		19		13

Duke Energy Indiana [Member]

Property, Plant And Equipment

10. Property, Plant and Equipment

	December 31, 2011
	Estimated Useful Life	Duke Energy			Duke Energy Carolinas			Duke Energy Ohio			Duke Energy Indiana
	(Years)	(in millions)
Land	—	$	745		$	372		$	135		$	88
Plant—Regulated
Electric generation, distribution and transmission(a)	8 – 125		38,330			26,466			3,595			8,269
Natural gas transmission and distribution(a)	12 – 60		1,927			—			1,927			—
Other buildings and improvements(a)	25 – 100		672			428			106			138
Plant—Unregulated
Electric generation, distribution and transmission(a)	8 – 100		5,464			—			3,997			—
Other buildings and improvements(a)	18 – 40		2,095			—			192			—
Nuclear fuel	—		1,213			1,213			—			—
Equipment(a)	3 – 33		863			248			168			134
Construction in process(a)	—		7,664			3,774			255			2,992
Other(a)	5 – 33		2,477			499			257			170
Total property, plant and equipment			61,450			33,000			10,632			11,791
Total accumulated depreciation—regulated(b),(c)			(16,630	)		(11,349	)		(1,916	)		(3,393	)
Total accumulated depreciation—unregulated(c)(d)			(2,159	)		—			(678	)		—
Total net property, plant and equipment		$	42,661		$	21,651		$	8,038		$	8,398

(a) Includes capitalized leases of $444 million, $53 million, $82 million, and $33 million at Duke Energy, Duke Energy Carolinas, Duke Energy Ohio, and Duke Energy Indiana, respectively.

(b) Includes $578 million of accumulated amortization of nuclear fuel at Duke Energy and Duke Energy Carolinas.

(c) Includes accumulated amortization of capitalized leases of $28 million, an insignificant amount, $11 million and $6 million at Duke Energy, Duke Energy Carolinas, Duke Energy Ohio, and Duke Energy Indiana, respectively.

(d) Includes accumulated depreciation of VIEs of $62 million at December 31, 2011 at Duke Energy.

	December 31, 2010
	Estimated Useful Life	Duke Energy			Duke Energy Carolinas			Duke Energy Ohio			Duke Energy Indiana
	(Years)	(in millions)
Land(a)	—	$	743		$	357		$	133		$	89
Plant—Regulated
Electric generation, distribution and transmission(a)	8 – 125		36,744			24,980			3,483			8,282
Natural gas transmission and distribution(a)	12 – 60		1,815			—			1,815			—
Other buildings and improvements(a)	25 – 100		610			366			111			132
Plant—Unregulated
Electric generation, distribution and transmission(a)	8 – 100		5,256			—			3,960			—
Other buildings and improvements(a)	20 – 90		2,108			1			188			—
Nuclear fuel	—		1,176			1,176			—			—
Equipment(a)	3 – 33		718			166			147			128
Construction in process(a)	—		7,015			3,677			182			2,426
Other(a)	5 – 33		2,354			468			240			156
Total property, plant and equipment			58,539			31,191			10,259			11,213
Total accumulated depreciation—regulated(b),(c)			(16,273	)		(11,126	)		(1,832	)		(3,341	)
Total accumulated depreciation—unregulated(c)(d)			(1,922	)		—			(579	)		—
Total net property, plant and equipment		$	40,344		$	20,065		$	7,848		$	7,872

(a) Includes capitalized leases of $414 million, $134 million, and $53 million at Duke Energy, Duke Energy Ohio, and Duke Energy Indiana, respectively.

(b) Includes $667 million of accumulated amortization of nuclear fuel at Duke Energy and Duke Energy Carolinas.

(c) Includes accumulated amortization of capitalized leases of $31 million, $17 million and $10 million at Duke Energy, Duke Energy Ohio, and Duke Energy Indiana, respectively.

(d) Includes accumulated depreciation of VIEs of $45 million at December 31, 2010 at Duke Energy.

The following table presents capitalized interest, which includes the debt component of AFUDC, for the years ended December 31, 2011, 2010, and 2009 respectively:

	Years Ended December 31,
	2011		2010		2009
	(in millions)
Duke Energy	$	166	$	167	$	102
Duke Energy Carolinas		78		83		65
Duke Energy Ohio		9		8		4
Duke Energy Indiana		33		19		13