Revenue (Tables)

6 Months Ended

Jun. 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 six months ended June 30, 2024 and 2023:

$ in millions	Utility		Other		Adjustments and Eliminations		Total
	Three Months Ended June 30, 2024
Retail revenue
Retail revenue from contracts with customers
Residential revenue	$	101.9	$	—	$	—	$	101.9
Commercial revenue	39.4		—		—		39.4
Industrial revenue	16.0		—		—		16.0
Governmental revenue	6.3		—		—		6.3
Other (a)	3.3		—		—		3.3
Total retail revenue from contracts with customers	166.9		—		—		166.9
Wholesale revenue
Wholesale revenue from contracts with customers	2.8		—		(0.3)		2.5
RTO ancillary revenue	34.2		—		—		34.2
Capacity revenue	0.3		—		—		0.3
Miscellaneous revenue
Miscellaneous revenue from contracts with customers (b)	—		2.5		—		2.5
Other miscellaneous revenue	2.7		1.3		(1.2)		2.8
Total revenue	$	206.9	$	3.8	$	(1.5)	$	209.2
	Three Months Ended June 30, 2023
Retail revenue
Retail revenue from contracts with customers
Residential revenue	$	107.0	$	—	$	—	$	107.0
Commercial revenue	39.2		—		—		39.2
Industrial revenue	16.2		—		—		16.2
Governmental revenue	5.8		—		—		5.8
Other (a)	3.3		—		—		3.3
Total retail revenue from contracts with customers	171.5		—		—		171.5
Wholesale revenue
Wholesale revenue from contracts with customers	3.3		—		(0.2)		3.1
RTO ancillary revenue	24.6		—		—		24.6
Capacity revenue	2.0		—		—		2.0
Miscellaneous revenue
Miscellaneous revenue from contracts with customers (b)	—		2.5		—		2.5
Other miscellaneous revenue	(1.7)		0.8		(0.8)		(1.7)
Total revenue	$	199.7	$	3.3	$	(1.0)	$	202.0

$ in millions	Utility		Other		Adjustments and Eliminations		Total
	Six months ended June 30, 2024
Retail revenue
Retail revenue from contracts with customers
Residential revenue	$	226.2	$	—	$	—	$	226.2
Commercial revenue	78.6		—		—		78.6
Industrial revenue	32.7		—		—		32.7
Governmental revenue	12.1		—		—		12.1
Other (a)	6.3		—		—		6.3
Total retail revenue from contracts with customers	355.9		—		—		355.9
Wholesale revenue
Wholesale revenue from contracts with customers	7.8		—		(0.5)		7.3
RTO ancillary revenue	62.0		—		—		62.0
Capacity revenue	0.4		—		—		0.4
Miscellaneous revenue
Miscellaneous revenue from contracts with customers (b)	—		4.8		—		4.8
Other miscellaneous revenue	5.1		2.5		(2.4)		5.2
Total revenue	$	431.2	$	7.3	$	(2.9)	$	435.6
	Six months ended June 30, 2023
Retail revenue
Retail revenue from contracts with customers
Residential revenue	$	250.0	$	—	$	—	$	250.0
Commercial revenue	82.1		—		—		82.1
Industrial revenue	33.9		—		—		33.9
Governmental revenue	11.9		—		—		11.9
Other (a)	6.5		—		—		6.5
Total retail revenue from contracts with customers	384.4		—		—		384.4
Wholesale revenue
Wholesale revenue from contracts with customers	7.1		—		(0.3)		6.8
RTO ancillary revenue	44.3		—		—		44.3
Capacity revenue	2.5		—		—		2.5
Miscellaneous revenue
Miscellaneous revenue from contracts with customers (b)	—		4.9		—		4.9
Other miscellaneous revenue	(0.8)		1.7		(1.7)		(0.8)
Total revenue	$	437.5	$	6.6	$	(2.0)	$	442.1

(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 six months ended June 30, 2024 and 2023:

	Three months ended				Six months ended
	June 30,				June 30,
$ in millions	2024		2023		2024		2023
Retail revenue
Retail revenue from contracts with customers
Residential revenue	$	101.9	$	107.0	$	226.2	$	250.0
Commercial revenue	39.4		39.2		78.6		82.1
Industrial revenue	16.0		16.2		32.7		33.9
Governmental revenue	6.3		5.8		12.1		11.9
Other (a)	3.3		3.3		6.3		6.5
Total retail revenue from contracts with customers	166.9		171.5		355.9		384.4
Wholesale revenue
Wholesale revenue from contracts with customers	2.8		3.3		7.8		7.1
RTO ancillary revenue	34.2		24.6		62.0		44.3
Capacity revenue	0.3		2.0		0.4		2.5
Miscellaneous revenue	2.7		(1.7)		5.1		(0.8)
Total revenue	$	206.9	$	199.7	$	431.2	$	437.5

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