Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2013

Schedule of Property, Plant and Equipment

Property, plant and equipment is comprised of the following:

	Original Cost		Accumulated Depreciation		Net Book Value
	(millions of dollars)
At December 31, 2013
Generation	$	105	$	99	$	6
Distribution		8,896		2,961		5,935
Transmission		2,991		908		2,083
Gas		481		142		339
Construction work in progress		677		—		677
Non-operating and other property		1,417		753		664
Total	$	14,567	$	4,863	$	9,704
At December 31, 2012
Generation	$	107	$	97	$	10
Distribution		8,320		2,954		5,366
Transmission		2,783		866		1,917
Gas		458		137		321
Construction work in progress		692		—		692
Non-operating and other property		1,265		725		540
Total	$	13,625	$	4,779	$	8,846

Capital Lease Assets Recorded within Property, Plant and Equipment

Capital lease assets recorded within Property, Plant and Equipment at December 31, 2013 and 2012, in millions of dollars, are comprised of the following:

	Original Cost		Accumulated Amortization		Net Book Value
At December 31, 2013
Transmission	$	76	$	41	$	35
Distribution		76		42		34
General		3		3		—
Total	$	155	$	86	$	69
At December 31, 2012
Transmission	$	76	$	37	$	39
Distribution		76		37		39
General		3		3		—
Total	$	155	$	77	$	78

Potomac Electric Power Co [Member]

Schedule of Property, Plant and Equipment

Property, plant and equipment is comprised of the following:

	Original Cost		Accumulated Depreciation		Net Book Value
	(millions of dollars)
At December 31, 2013
Distribution	$	5,287	$	2,027	$	3,260
Transmission		1,223		444		779
Construction work in progress		312		—		312
Non-operating and other property		488		301		187
Total	$	7,310	$	2,772	$	4,538
At December 31, 2012
Distribution	$	4,949	$	1,995	$	2,954
Transmission		1,166		419		747
Construction work in progress		303		—		303
Non-operating and other property		432		291		141
Total	$	6,850	$	2,705	$	4,145

Capital Lease Assets Recorded within Property, Plant and Equipment

Capital lease assets recorded within Property, plant and equipment at December 31, 2013 and 2012 are comprised of the following:

	Original Cost		Accumulated Amortization		Net Book Value
	(millions of dollars)
At December 31, 2013
Transmission	$	76	$	41	$	35
Distribution		76		42		34
Other		3		3		—
Total	$	155	$	86	$	69
At December 31, 2012
Transmission	$	76	$	37	$	39
Distribution		76		37		39
Other		3		3		—
Total	$	155	$	77	$	78

Delmarva Power & Light Co/De [Member]

Schedule of Property, Plant and Equipment

Property, plant and equipment is comprised of the following:

	Original Cost		Accumulated Depreciation		Net Book Value
	(millions of dollars)
At December 31, 2013
Distribution	$	1,788	$	492	$	1,296
Transmission		982		243		739
Gas		481		142		339
Construction work in progress		158		—		158
Non-operating and other property		264		139		125
Total	$	3,673	$	1,016	$	2,657
At December 31, 2012
Distribution	$	1,664	$	498	$	1,166
Transmission		877		233		644
Gas		458		137		321
Construction work in progress		206		—		206
Non-operating and other property		217		132		85
Total	$	3,422	$	1,000	$	2,422

Atlantic City Electric Co [Member]

Schedule of Property, Plant and Equipment

Property, plant and equipment is comprised of the following:

	Original Cost		Accumulated Depreciation		Net  Book Value
	(millions of dollars)
At December 31, 2013
Generation	$	10	$	9	$	1
Distribution		1,821		442		1,379
Transmission		786		221		565
Construction work in progress		110		—		110
Non-operating and other property		174		79		95
Total	$	2,901	$	751	$	2,150
At December 31, 2012
Generation	$	10	$	9	$	1
Distribution		1,707		461		1,246
Transmission		740		214		526
Construction work in progress		133		—		133
Non-operating and other property		181		103		78
Total	$	2,771	$	787	$	1,984