Revenue (Tables)

9 Months Ended

Sep. 30, 2024

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, 2024 and 2023:

$ in millions	Utility		Other		Adjustments and Eliminations		Total
	Three Months Ended September 30, 2024
Retail revenue
Retail revenue from contracts with customers
Residential revenue	$	120.9	$	—	$	—	$	120.9
Commercial revenue	41.9		—		—		41.9
Industrial revenue	17.4		—		—		17.4
Governmental revenue	7.4		—		—		7.4
Other (a)	2.7		—		—		2.7
Total retail revenue from contracts with customers	190.3		—		—		190.3
Wholesale revenue
Wholesale revenue from contracts with customers	4.5		—		(0.2)		4.3
RTO ancillary revenue	27.0		—		—		27.0
Capacity revenue	0.3		—		—		0.3
Miscellaneous revenue
Miscellaneous revenue from contracts with customers (b)	—		2.4		—		2.4
Other miscellaneous revenue	3.3		1.2		(1.3)		3.2
Total revenue	$	225.4	$	3.6	$	(1.5)	$	227.5
	Three Months Ended September 30, 2023
Retail revenue
Retail revenue from contracts with customers
Residential revenue	$	127.8	$	—	$	—	$	127.8
Commercial revenue	42.7		—		—		42.7
Industrial revenue	16.5		—		—		16.5
Governmental revenue	6.8		—		—		6.8
Other (a)	3.5		—		—		3.5
Total retail revenue from contracts with customers	197.3		—		—		197.3
Other retail revenue	(0.2)		—		—		(0.2)
Wholesale revenue
Wholesale revenue from contracts with customers	4.2		—		(0.2)		4.0
RTO ancillary revenue	21.4		0.1		—		21.5
Capacity revenue	0.7		—		—		0.7
Miscellaneous revenue
Miscellaneous revenue from contracts with customers (b)	—		2.3		—		2.3
Other miscellaneous revenue	(1.4)		1.5		(1.5)		(1.4)
Total revenue	$	222.0	$	3.9	$	(1.7)	$	224.2

$ in millions	Utility		Other		Adjustments and Eliminations		Total
	Nine months ended September 30, 2024
Retail revenue
Retail revenue from contracts with customers
Residential revenue	$	347.1	$	—	$	—	$	347.1
Commercial revenue	120.5		—		—		120.5
Industrial revenue	50.1		—		—		50.1
Governmental revenue	19.5		—		—		19.5
Other (a)	9.0		—		—		9.0
Total retail revenue from contracts with customers	546.2		—		—		546.2
Other retail revenue	—		—		—		—
Wholesale revenue
Wholesale revenue from contracts with customers	12.3		—		(0.7)		11.6
RTO ancillary revenue	89.0		—		—		89.0
Capacity revenue	0.7		—		—		0.7
Miscellaneous revenue
Miscellaneous revenue from contracts with customers (b)	—		7.2		—		7.2
Other miscellaneous revenue	8.4		3.7		(3.7)		8.4
Total revenue	$	656.6	$	10.9	$	(4.4)	$	663.1
	Nine months ended September 30, 2023
Retail revenue
Retail revenue from contracts with customers
Residential revenue	$	377.9	$	—	$	—	$	377.9
Commercial revenue	124.8		—		—		124.8
Industrial revenue	50.4		—		—		50.4
Governmental revenue	18.7		—		—		18.7
Other (a)	9.9		—		—		9.9
Total retail revenue from contracts with customers	581.7		—		—		581.7
Other retail revenue	(0.2)		—		—		(0.2)
Wholesale revenue
Wholesale revenue from contracts with customers	11.3		—		(0.5)		10.8
RTO ancillary revenue	65.7		0.1		—		65.8
Capacity revenue	3.2		—		—		3.2
Miscellaneous revenue
Miscellaneous revenue from contracts with customers (b)	—		7.2		—		7.2
Other miscellaneous revenue	(2.2)		3.2		(3.2)		(2.2)
Total revenue	$	659.5	$	10.5	$	(3.7)	$	666.3

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

(b)    Miscellaneous revenue from contracts with customers primarily includes revenue 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, 2024 and 2023:

	Three months ended				Nine months ended
	September 30,				September 30,
$ in millions	2024		2023		2024		2023
Retail revenue
Retail revenue from contracts with customers
Residential revenue	$	120.9	$	127.8	$	347.1	$	377.9
Commercial revenue	41.9		42.7		120.5		124.8
Industrial revenue	17.4		16.5		50.1		50.4
Governmental revenue	7.4		6.8		19.5		18.7
Other (a)	2.7		3.5		9.0		9.9
Total retail revenue from contracts with customers	190.3		197.3		546.2		581.7
Other retail revenue	—		(0.2)		—		(0.2)
Wholesale revenue
Wholesale revenue from contracts with customers	4.5		4.2		12.3		11.3
RTO ancillary revenue	27.0		21.4		89.0		65.7
Capacity revenue	0.3		0.7		0.7		3.2
Miscellaneous revenue	3.3		(1.4)		8.4		(2.2)
Total revenue	$	225.4	$	222.0	$	656.6	$	659.5

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