Regulatory Matters (Tables)

6 Months Ended

3 Months Ended

Jun. 30, 2012

Mar. 31, 2012

DP&L [Member]

Regulatory Assets and Liabilities

$ in millions	Type of Recovery (a)	Amortization Through	At June 30, 2012		At December 31, 2011
Current Regulatory Assets:
TCRR, transmission, ancillary and other PJM-related costs	F	Ongoing	$	5.4	$	4.7
Power plant emission fees	C	Ongoing		1.4		4.8
Fuel and purchased power recovery costs	C	Ongoing		15.5		11.3
Total current regulatory assets			$	22.3	$	20.8
Non-current Regulatory Assets:
Deferred recoverable income taxes	B/C	Ongoing	$	22.5	$	24.1
Pension benefits	C	Ongoing		88.9		92.1
Unamortized loss on reacquired debt	C	Ongoing		12.4		13.0
Regional transmission organization costs	D	2014		3.3		4.1
Deferred storm costs - 2008	D			18.5		17.9
CCEM smart grid and advanced metering infrastructure costs	D			6.6		6.6
CCEM energy efficiency program costs	F	Ongoing		7.3		8.8
Consumer education campaign	D			3.0		3.0
Retail settlement system costs	D			3.1		3.1
Other costs				5.3		5.1
Total non-current regulatory assets			$	170.9	$	177.8
Current Regulatory Liabilities:
Other	C	Ongoing		-		0.5
Total current regulatory liabilities			$	-	$	0.5
Non-current Regulatory Liabilities:
Estimated costs of removal - regulated property			$	112.4	$	112.4
Postretirement benefits				5.8		6.2
Total non-current regulatory liabilities			$	118.2	$	118.6

$ in millions	Type of Recovery (a)	Amortization Through	At June 30, 2012		At December 31, 2011
Current Regulatory Assets:
TCRR, transmission, ancillary and other PJM-related costs	F	Ongoing	$	5.4	$	4.7
Power plant emission fees	C	Ongoing		1.4		4.8
Fuel and purchased power recovery costs	C	Ongoing		12.5		8.2
Total current regulatory assets			$	19.3	$	17.7
Non-current Regulatory Assets:
Deferred recoverable income taxes	B/C	Ongoing	$	22.5	$	24.1
Pension and postretirement benefits	C	Ongoing		88.9		92.1
Unamortized loss on reacquired debt	C	Ongoing		12.4		13.0
Regional transmission organization costs	D	2014		3.3		4.1
Deferred storm costs - 2008	D			18.5		17.9
CCEM smart grid and advanced metering infrastructure costs	D			6.6		6.6
CCEM energy efficiency program costs	F	Ongoing		7.3		8.8
Consumer education campaign	D			3.0		3.0
Retail settlement system costs	D			3.1		3.1
Other costs				5.3		5.1
Total non-current regulatory assets			$	170.9	$	177.8
Non-current Regulatory Liabilities:
Estimated costs of removal - regulated property			$	112.4	$	112.4
Postretirement benefits				5.8		6.2
Total non-current regulatory liabilities			$	118.2	$	118.6