Regulatory Matters (Tables)

6 Months Ended

Jun. 30, 2011

Regulatory Matters

Regulatory Assets and Liabilities

				At	At
	Type of	Amortization		June 30,	December 31,
$ in millions	Recovery (a)	Through		2011	2010
Regulatory Assets:
Deferred recoverable income taxes	B/C	Ongoing	$	29.1	$	29.9
Pension benefits	C	Ongoing		77.8		81.1
Unamortized loss on reacquired debt	C	Ongoing		13.6		14.3
Regional transmission organization costs	D	2014		4.8		5.5
TCRR, transmission, ancillary and other PJM-related costs	F	Ongoing		8.7		11.8
Deferred storm costs - 2008	D			17.4		16.9
Power plant emission fees	C	Ongoing		6.5		6.6
CCEM smart grid and advanced metering infrastructure costs	D			6.6		6.6
CCEM energy efficiency program costs	F	Ongoing		5.7		4.8
Other costs				8.6		11.5
Total regulatory assets			$	178.8	$	189.0
Regulatory Liabilities:
Estimated costs of removal - regulated property			$	110.2	$	107.9
Postretirement benefits				5.7		6.1
Fuel and purchased power recovery costs	C	Ongoing		13.5		10.0
Total regulatory liabilities			$	129.4	$	124.0

(a) B – Balance has an offsetting liability resulting in no impact on rate base. C – Recovery of incurred costs without a rate of return.

D – Recovery not yet determined, but is probable of occurring in future rate proceedings.

F – Recovery of incurred costs plus rate of return.