Revenue (Tables)

9 Months Ended

Sep. 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 nine months ended September 30, 2022 and 2021:

$ in millions	Utility		Other		Adjustments and Eliminations		Total
	Three Months Ended September 30, 2022
Retail revenue
Retail revenue from contracts with customers
Residential revenue	$	147.0	$	—	$	—	$	147.0
Commercial revenue	50.5		—		—		50.5
Industrial revenue	20.6		—		—		20.6
Governmental revenue	6.2		—		—		6.2
Other (a)	3.0		—		—		3.0
Total retail revenue from contracts with customers	227.3		—		—		227.3
Wholesale revenue
Wholesale revenue from contracts with customers	13.4		—		(0.2)		13.2
RTO ancillary revenue	16.2		—		—		16.2
Capacity revenue	0.5		—		—		0.5
Miscellaneous revenue
Miscellaneous revenue from contracts with customers (b)	—		2.4		—		2.4
Other miscellaneous revenue	2.5		0.8		(0.8)		2.5
Total revenues	$	259.9	$	3.2	$	(1.0)	$	262.1
	Three Months Ended September 30, 2021
Retail revenue
Retail revenue from contracts with customers
Residential revenue	$	103.3	$	—	$	—	$	103.3
Commercial revenue	35.0		—		—		35.0
Industrial revenue	16.0		—		—		16.0
Governmental revenue	7.0		—		—		7.0
Other (a)	2.9		—		—		2.9
Total retail revenue from contracts with customers	164.2		—		—		164.2
Wholesale revenue
Wholesale revenue from contracts with customers	6.8		—		(0.2)		6.6
RTO ancillary revenue	12.5		—		—		12.5
Capacity revenue	1.8		—		—		1.8
Miscellaneous revenue
Miscellaneous revenue from contracts with customers (b)	—		2.4		—		2.4
Other miscellaneous revenue	0.8		0.7		(0.8)		0.7
Total revenues	$	186.1	$	3.1	$	(1.0)	$	188.2

$ in millions	Utility		Other		Adjustments and Eliminations		Total
	Nine months ended September 30, 2022
Retail revenue
Retail revenue from contracts with customers
Residential revenue	$	350.6	$	—	$	—	$	350.6
Commercial revenue	123.5		—		—		123.5
Industrial revenue	55.4		—		—		55.4
Governmental revenue	18.2		—		—		18.2
Other (a)	9.1		—		—		9.1
Total retail revenue from contracts with customers	556.8		—		—		556.8
Wholesale revenue
Wholesale revenue from contracts with customers	32.1		—		(0.6)		31.5
RTO ancillary revenue	46.2		0.1		—		46.3
Capacity revenue	3.8		—		—		3.8
Miscellaneous revenue
Miscellaneous revenue from contracts with customers (b)	—		7.2		—		7.2
Other miscellaneous revenue	6.7		2.6		(2.6)		6.7
Total revenues	$	645.6	$	9.9	$	(3.2)	$	652.3
	Nine months ended September 30, 2021
Retail revenue
Retail revenue from contracts with customers
Residential revenue	$	279.3	$	—	$	—	$	279.3
Commercial revenue	90.5		—		—		90.5
Industrial revenue	42.4		—		—		42.4
Governmental revenue	19.9		—		—		19.9
Other (a)	9.4		—		—		9.4
Total retail revenue from contracts with customers	441.5		—		—		441.5
Wholesale revenue
Wholesale revenue from contracts with customers	15.4		—		(0.6)		14.8
RTO ancillary revenue	39.4		0.1		—		39.5
Capacity revenue	4.0		—		—		4.0
Miscellaneous revenue
Miscellaneous revenue from contracts with customers (b)	—		7.2		—		7.2
Other miscellaneous revenue	4.5		2.6		(2.6)		4.5
Total revenues	$	504.8	$	9.9	$	(3.2)	$	511.5

(a)    "Other" primarily includes operation and maintenance service 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 nine months ended September 30, 2022 and 2021:

	Three months ended				Nine months ended
	September 30,				September 30,
$ in millions	2022		2021		2022		2021
Retail revenue
Retail revenue from contracts with customers
Residential revenue	$	147.0	$	103.3	$	350.6	$	279.3
Commercial revenue	50.5		35.0		123.5		90.5
Industrial revenue	20.6		16.0		55.4		42.4
Governmental revenue	6.2		7.0		18.2		19.9
Other (a)	3.0		2.9		9.1		9.4
Total retail revenue from contracts with customers	227.3		164.2		556.8		441.5
Wholesale revenue
Wholesale revenue from contracts with customers	13.4		6.8		32.1		15.4
RTO ancillary revenue	16.2		12.5		46.2		39.4
Capacity revenue	0.5		1.8		3.8		4.0
Miscellaneous revenue	2.5		0.8		6.7		4.5
Total revenues	$	259.9	$	186.1	$	645.6	$	504.8

(a)    "Other" primarily includes operation and maintenance service revenues, billing service fees from CRES providers and other miscellaneous retail revenues from contracts with customers.