Potomac Electric Power 10-Q 2013 Q2 Quarterly report

Exhibit 99.1

PEPCO HOLDINGS, INC.

				For the Year Ended December 31,
	Six Months Ended June  30, 2013			2012			2011		2010			2009			2008
	(millions of dollars)
(Loss) Earnings
Net (loss) income from continuing operations	$	(392	)	$	259		$	258	$	119		$	195		$	156
Preferred stock dividend		—			—			—		—			—			—
(Income) or loss from equity investees		(1	)		(1	)		3		1			(2	)		4
Minority interest loss		—			—			—		—			—			—
Income tax expense (benefit) related to continuing operations		167			138			148		(2	)		86			77
Pre-tax (loss) income for common stock		(226	)		396			409		118			279			237
Add: Fixed charges*		151			295			286		323			344			333
Add: Distributed income of equity investees		—			—			—		—			—			—
Subtract: Interest capitalized		—			—			—		—			—			(1	)
Subtract: Pre-tax preferred stock dividend requirement		—			—			—		—			—			—
(Loss) Earnings	$	(75	)	$	691		$	695	$	441		$	623		$	569
*Fixed Charges
Interest on long-term debt	$	133		$	258		$	250	$	280		$	298		$	292
Interest capitalized		—			—			—		—			—			1
Other interest		—			—			—		—			—			—��
Amortization of debt discount, premium, and expense		7			16			14		21			23			16
Interest component of rentals		11			21			22		22			23			24
Pre-tax preferred stock dividend requirement		—			—			—		—			—			—
Fixed charges	$	151		$	295		$	286	$	323		$	344		$	333
Ratio of (loss) earnings to fixed charges		(0.50	)		2.34			2.43		1.37			1.81			1.71
Deficiency	$	226		$	—		$	—	$	—		$	—		$	—

(a) Pepco Holdings, Inc. has no preferred equity securities outstanding, therefore the ratio of earnings to fixed charges is equal to the ratio of earnings to combined fixed charges and preferred stock dividends.