Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2014

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, 2014
Generation	$	104	$	100	$	4
Distribution		9,527		3,021		6,506
Transmission		3,252		934		2,318
Gas		511		153		358
Construction work in progress		688		—		688
Non-operating and other property		1,383		751		632
Total	$	15,465	$	4,959	$	10,506
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

Capital Lease Assets Recorded within Property, Plant and Equipment

Capital lease assets recorded within Property, Plant and Equipment at December 31, 2014 and 2013 are comprised of the following:

	Original Cost		Accumulated Amortization		Net Book Value
	(millions of dollars)
At December 31, 2014
Transmission	$	76	$	46	$	30
Distribution		76		46		30
Total	$	152	$	92	$	60
At December 31, 2013
Transmission	$	76	$	41	$	35
Distribution		76		42		34
General		3		3		—
Total	$	155	$	86	$	69

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, 2014
Distribution	$	5,668	$	2,082	$	3,586
Transmission		1,306		463		843
Construction work in progress		312		—		312
Non-operating and other property		478		271		207
Total	$	7,764	$	2,816	$	4,948
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

Capital Lease Assets Recorded within Property, Plant and Equipment

Capital lease assets recorded within Property, plant and equipment at December 31, 2014 and 2013 are comprised of the following:

	Original Cost		Accumulated Amortization		Net Book Value
At December 31, 2014	(millions of dollars)
Transmission	$	76	$	46	$	30
Distribution		76		46		30
Total	$	152	$	92	$	60
At December 31, 2013
Transmission	$	76	$	41	$	35
Distribution		76		42		34
Other		3		3		—
Total	$	155	$	86	$	69

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, 2014
Distribution	$	1,928	$	489	$	1,439
Transmission		1,107		248		859
Gas		511		153		358
Construction work in progress		125		—		125
Non-operating and other property		275		131		144
Total	$	3,946	$	1,021	$	2,925
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

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, 2014
Generation	$	10	$	9	$	1
Distribution		1,931		450		1,481
Transmission		839		223		616
Construction work in progress		115		—		115
Non-operating and other property		178		78		100
Total	$	3,073	$	760	$	2,313
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