Revenue (Tables)

6 Months Ended

Jun. 30, 2022

Disaggregation of Revenue [Table Text Block]

The following table presents our revenue from contracts with customers and other revenue by segment for the three and six months ended June 30, 2022 and 2021:

$ in millions	Utility		Other		Adjustments and Eliminations		Total
	Three Months Ended June 30, 2022
Retail revenue
Retail revenue from contracts with customers
Residential revenue	$	93.7	$	—	$	—	$	93.7
Commercial revenue	38.0		—		—		38.0
Industrial revenue	17.9		—		—		17.9
Governmental revenue	5.9		—		—		5.9
Other (a)	3.2		—		—		3.2
Total retail revenue from contracts with customers	158.7		—		—		158.7
Wholesale revenue
Wholesale revenue from contracts with customers	11.0		—		(0.2)		10.8
RTO ancillary revenue	14.9		0.1		—		15.0
Capacity revenue	1.5		—		—		1.5
Miscellaneous revenue
Miscellaneous revenue from contracts with customers (b)	—		2.3		—		2.3
Other miscellaneous revenue	2.6		0.9		(0.9)		2.6
Total revenues	$	188.7	$	3.3	$	(1.1)	$	190.9
	Three Months Ended June 30, 2021
Retail revenue
Retail revenue from contracts with customers
Residential revenue	$	77.7	$	—	$	—	$	77.7
Commercial revenue	28.2		—		—		28.2
Industrial revenue	14.1		—		—		14.1
Governmental revenue	5.5		—		—		5.5
Other (a)	2.8		—		—		2.8
Total retail revenue from contracts with customers	128.3		—		—		128.3
Wholesale revenue
Wholesale revenue from contracts with customers	3.6		—		(0.2)		3.4
RTO ancillary revenue	12.1		—		—		12.1
Capacity revenue	1.3		—		—		1.3
Miscellaneous revenue
Miscellaneous revenue from contracts with customers (b)	—		2.3		—		2.3
Other miscellaneous revenue	0.6		1.0		(0.9)		0.7
Total revenues	$	145.9	$	3.3	$	(1.1)	$	148.1

$ in millions	Utility		Other		Adjustments and Eliminations		Total
	Six months ended June 30, 2022
Retail revenue
Retail revenue from contracts with customers
Residential revenue	$	203.6	$	—	$	—	$	203.6
Commercial revenue	73.0		—		—		73.0
Industrial revenue	34.8		—		—		34.8
Governmental revenue	12.0		—		—		12.0
Other (a)	6.1		—		—		6.1
Total retail revenue from contracts with customers	329.5		—		—		329.5
Wholesale revenue
Wholesale revenue from contracts with customers	18.7		—		(0.4)		18.3
RTO ancillary revenue	30.0		0.1		—		30.1
Capacity revenue	3.3		—		—		3.3
Miscellaneous revenue
Miscellaneous revenue from contracts with customers (b)	—		4.8		—		4.8
Other miscellaneous revenue	4.2		1.8		(1.8)		4.2
Total revenues	$	385.7	$	6.7	$	(2.2)	$	390.2
	Six months ended June 30, 2021
Retail revenue
Retail revenue from contracts with customers
Residential revenue	$	176.0	$	—	$	—	$	176.0
Commercial revenue	55.5		—		—		55.5
Industrial revenue	26.4		—		—		26.4
Governmental revenue	12.9		—		—		12.9
Other (a)	6.5		—		—		6.5
Total retail revenue from contracts with customers	277.3		—		—		277.3
Wholesale revenue
Wholesale revenue from contracts with customers	8.6		—		(0.4)		8.2
RTO ancillary revenue	26.9		0.1		—		27.0
Capacity revenue	2.2		—		—		2.2
Miscellaneous revenue
Miscellaneous revenue from contracts with customers (b)	—		4.8		—		4.8
Other miscellaneous revenue	3.7		1.9		(1.8)		3.8
Total revenues	$	318.7	$	6.8	$	(2.2)	$	323.3

(a)    "Other" primarily includes Wright-Patterson Air Force Base revenues, billing service fees from CRES providers and other miscellaneous retail revenues from contracts with customers.

(b)    Miscellaneous revenue from contracts with customers primarily includes revenues for various services provided by Miami Valley Lighting.

Subsidiaries [Member]

Disaggregation of Revenue [Table Text Block]

The following table presents our revenue from contracts with customers and other revenue for the three and six months ended June 30, 2022 and 2021:

	Three months ended				Six months ended
	June 30,				June 30,
$ in millions	2022		2021		2022		2021
Retail revenue
Retail revenue from contracts with customers
Residential revenue	$	93.7	$	77.7	$	203.6	$	176.0
Commercial revenue	38.0		28.2		73.0		55.5
Industrial revenue	17.9		14.1		34.8		26.4
Governmental revenue	5.9		5.5		12.0		12.9
Other (a)	3.2		2.8		6.1		6.5
Total retail revenue from contracts with customers	158.7		128.3		329.5		277.3
Wholesale revenue
Wholesale revenue from contracts with customers	11.0		3.6		18.7		8.6
RTO ancillary revenue	14.9		12.1		30.0		26.9
Capacity revenue	1.5		1.3		3.3		2.2
Miscellaneous revenue	2.6		0.6		4.2		3.7
Total revenues	$	188.7	$	145.9	$	385.7	$	318.7

(a)    "Other" primarily includes Wright-Patterson Air Force Base revenues, billing service fees from CRES providers and other miscellaneous retail revenues from contracts with customers.