Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2011

Related Party Transactions

Impact of related party transactions

	Increase (Decrease) in Earnings
			Accounts Receivable/ (Accounts Payable)— December 31, 2011
Agreement	Year Ended December 31, 2011					Year Ended December 31, 2010			Period from November 6, 2009 through December 31, 2009			Income Statement Classification
PPA	$	(888.4	)	$	(900.8	)	$	(122.5	)	Fuel and purchased energy expenses	$	(47.5	)
PSA		16.1			16.1			2.7		Nonregulated revenues		—
ASA		48.0			66.0			10.0		Operating expenses		4.0

Schedule of BGE's electricity purchased for resale expenses

Year Ended December 31,	2011		2010		2009
	(In millions)
Electricity purchased for resale expenses	$	348.2	$	428.0	$	623.5

Schedule of charges to BGE

Year ended December 31,	2011		2010		2009
	(In millions)
Charges to BGE	$	178.6	$	184.8	$	164.7