Revenue (Tables)

9 Months Ended

Sep. 30, 2019

Disaggregation of Revenue [Table Text Block]

DPL's revenue from contracts with customers was $195.0 million and $195.1 million for the three months ended September 30, 2019 and 2018, respectively, and $576.5 million and $560.1 million for the nine months ended September 30, 2019 and 2018, respectively.

The following table presents our revenue from contracts with customers and other revenue by segment for the three and nine months ended September 30, 2019 and 2018:

$ in millions	Utility		Other			Adjustments and Eliminations			Total
	Three Months Ended September 30, 2019
Retail revenue
Retail revenue from contracts with customers	$	170.5	$	—		$	—		$	170.5
Other retail revenue (a)	3.8		—			—			3.8
Wholesale revenue
Wholesale revenue from contracts with customers	4.4		5.0			(0.2		)	9.2
RTO ancillary revenue	11.0		0.1			—			11.1
Capacity revenue	1.1		1.1			—			2.2
Miscellaneous revenue from contracts with customers (b)	—		2.0			—			2.0
Miscellaneous revenue	0.3		0.7			(0.8		)	0.2
Total revenues	$	191.1	$	8.9		$	(1.0	)	$	199.0
	Three Months Ended September 30, 2018
Retail revenue
Retail revenue from contracts with customers	$	168.4	$	—		$	(0.4	)	$	168.0
Other retail revenue (a)	12.6		—			—			12.6
Wholesale revenue
Wholesale revenue from contracts with customers	4.9		5.6			—			10.5
RTO ancillary revenue	10.8		(0.1		)	—			10.7
Capacity revenue	2.0		1.7			—			3.7
Miscellaneous revenue from contracts with customers (b)	—		2.2			—			2.2
Miscellaneous revenue	—		0.5			(0.5		)	—
Total revenues	$	198.7	$	9.9		$	(0.9	)	$	207.7
	Nine months ended September 30, 2019
Retail revenue
Retail revenue from contracts with customers	$	503.8	$	—		$	—		$	503.8
Other retail revenue (a)	14.9		—			—			14.9
Wholesale revenue
Wholesale revenue from contracts with customers	12.8		11.4			(0.8		)	23.4
RTO ancillary revenue	32.8		0.2			—			33.0
Capacity revenue	5.0		4.2			—			9.2
Miscellaneous revenue from contracts with customers (b)	—		7.1			—			7.1
Miscellaneous revenue	0.9		2.3			(2.4		)	0.8
Total revenues	$	570.2	$	25.2		$	(3.2	)	$	592.2
	Nine months ended September 30, 2018
Retail revenue
Retail revenue from contracts with customers	$	469.3	$	—		$	(0.8	)	$	468.5
Other retail revenue (a)	31.4		—			—			31.4
Wholesale revenue
Wholesale revenue from contracts with customers	24.6		16.7			—			41.3
RTO ancillary revenue	32.4		0.1			—			32.5
Capacity revenue	5.8		4.7			—			10.5
Miscellaneous revenue from contracts with customers (b)	—		7.3			—			7.3
Miscellaneous revenue	—		1.9			(1.9		)	—
Total revenues	$	563.5	$	30.7		$	(2.7	)	$	591.5

(a) Other retail revenue primarily includes alternative revenue programs not accounted for under FASC 606.

(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]

DP&L's revenue from contracts with customers was $187.0 million and $186.1 million for the three months ended September 30, 2019 and 2018, respectively, and $554.4 million and $532.1 million for the nine months ended September 30, 2019 and 2018, respectively. The following table presents our revenue from contracts with customers and other revenue for the three and nine months ended September 30, 2019 and 2018:

	Three months ended				Nine months ended
	September 30,				September 30,
$ in millions	2019		2018		2019		2018
Retail revenue
Retail revenue from contracts with customers	$	170.5	$	168.4	$	503.8	$	469.3
Other retail revenue (a)	3.8		12.6		14.9		31.4
Wholesale revenue
Wholesale revenue from contracts with customers	4.4		4.9		12.8		24.6
RTO ancillary revenue	11.0		10.8		32.8		32.4
Capacity revenue	1.1		2.0		5.0		5.8
Miscellaneous revenue	0.3		—		0.9		—
Total revenues	$	191.1	$	198.7	$	570.2	$	563.5

(a) Other retail revenue primarily includes alternative revenue programs not accounted for under FASC 606.