Regulatory Matters (Tables)

12 Months Ended

Dec. 31, 2015

Schedule of Regulatory Assets and Regulatory Liabilities

The components of Pepco Holdings’ regulatory asset and liability balances at December 31, 2015 and 2014 are as follows:

	2015		2014
	(millions of dollars)
Regulatory Assets
Pension and other postretirement benefit costs	$	910	$	946
Demand-side management costs		403		329
Smart Grid costs		266		261
Recoverable income taxes		224		274
Securitized stranded costs		202		278
Incremental storm restoration costs		43		51
Deferred debt extinguishment costs		36		42
Deferred energy supply costs		32		73
Recoverable workers’ compensation and long-term disability costs		31		30
MAPP abandonment costs		7		33
Deferred losses on gas derivatives		2		4
Other		90		88
Total Regulatory Assets	$	2,246	$	2,409
Regulatory Liabilities
Asset removal costs	$	211	$	250
Reserves for FERC ROE transmission challenges		32		4
Federal and state tax benefits, related to securitized stranded costs		13		8
Deferred income taxes due to customers		12		44
Deferred energy supply costs		11		3
Other		29		34
Total Regulatory Liabilities	$	308	$	343

Atlantic City Electric Co [Member]

Schedule of Regulatory Assets and Regulatory Liabilities

The components of ACE’s regulatory asset and liability balances at December 31, 2015 and 2014 are as follows:

	2015		2014
	(millions of dollars)
Regulatory Assets
Securitized stranded costs	$	202	$	278
Recoverable income taxes		44		42
Deferred energy supply costs		27		58
Incremental storm restoration costs		18		15
Deferred debt extinguishment costs		7		8
Other		24		26
Total Regulatory Assets	$	322	$	427
Regulatory Liabilities
Federal and state tax benefits, related to securitized stranded costs	$	13	$	8
Reserves for FERC ROE transmission challenges		8		1
Deferred income taxes due to customers		3		3
Other		3		2
Total Regulatory Liabilities	$	27	$	14

Potomac Electric Power Co [Member]

Schedule of Regulatory Assets and Regulatory Liabilities

The components of Pepco’s regulatory asset and liability balances at December 31, 2015 and 2014 are as follows:

	2015		2014
	(millions of dollars)
Regulatory Assets
Demand-side management costs	$	292	$	238
Smart Grid costs		181		175
Recoverable income taxes		142		148
Recoverable workers’ compensation and long-term disability costs		31		30
Incremental storm restoration costs		19		29
Deferred debt extinguishment costs		19		22
MAPP abandonment costs		4		19
Deferred energy supply costs		3		3
Other		29		33
Total Regulatory Assets	$	720	$	697
Regulatory Liabilities
Asset removal costs	$	58	$	84
Reserves for FERC ROE transmission challenges		13		2
Deferred income taxes due to customers		6		4
Deferred energy supply costs		5		3
Other		10		11
Total Regulatory Liabilities	$	92	$	104

Delmarva Power & Light Co/De [Member]

Schedule of Regulatory Assets and Regulatory Liabilities

The components of DPL’s regulatory asset and liability balances at December 31, 2015 and 2014 are as follows:

	2015		2014
	(millions of dollars)
Regulatory Assets
Demand-side management costs	$	111	$	91
Smart Grid costs		85		86
Recoverable income taxes		38		84
COPCO acquisition adjustment		13		18
Deferred debt extinguishment costs		10		12
Incremental storm restoration costs		6		7
MAPP abandonment costs		3		14
Deferred energy supply costs		2		12
Deferred losses on gas derivatives		2		4
Other		38		28
Total Regulatory Assets	$	308	$	356
Regulatory Liabilities
Asset removal costs	$	153	$	166
Reserves for FERC ROE transmission challenges		11		1
Deferred energy supply costs		6		—
Deferred income taxes due to customers		3		37
Other		16		21
Total Regulatory Liabilities	$	189	$	225