OPERATING REVENUES (Tables)

6 Months Ended

Jun. 30, 2018

Disaggregation of Operating Revenues

Operating revenues disaggregated by revenue source

The following tables present our operating revenues disaggregated by revenue source. We disaggregate revenues into categories that depict how the nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factors. For our segments, revenues are further disaggregated by electric and natural gas operations and then by customer class. Each customer class within our electric and natural gas operations have different expectations of service, energy and demand requirements, and are impacted by regulatory activities within their jurisdictions.

Comparable amounts have not been presented for the three and six months ended June 30, 2017, due to our adoption of this standard under the modified retrospective method.

(in millions)	Wisconsin		Illinois			Other States			Total Utility Operations			Electric Transmission		Non-Utility Energy Infrastructure		Corporate and Other		Reconciling Eliminations			WEC Energy Group Consolidated
Three Months Ended June 30, 2018
Electric	$	1,084.2	$	—		$	—		$	1,084.2		$	—	$	—	$	—	$	—		$	1,084.2
Natural gas	236.4		273.8			68.9			579.1			—		10.0		—		(12.7		)	576.4
Total utility revenues	1,320.6		273.8			68.9			1,663.3			—		10.0		—		(12.7		)	1,660.6
Other non-utility revenues	—		0.1			3.9			4.0			—		9.3		2.8		(3.1		)	13.0
Total revenues from contracts with customers	1,320.6		273.9			72.8			1,667.3			—		19.3		2.8		(15.8		)	1,673.6
Other operating revenues	4.9		(5.9		)	(0.4		)	(1.4		)	—		97.7		0.3		(97.7		)	(1.1		)
Total operating revenues	$	1,325.5	$	268.0		$	72.4		$	1,665.9		$	—	$	117.0	$	3.1	$	(113.5	)	$	1,672.5

(in millions)	Wisconsin		Illinois			Other States			Total Utility Operations			Electric Transmission		Non-Utility Energy Infrastructure		Corporate and Other		Reconciling Eliminations			WEC Energy Group Consolidated
Six Months Ended June 30, 2018
Electric	$	2,151.9	$	—		$	—		$	2,151.9		$	—	$	—	$	—	$	—		$	2,151.9
Natural gas	754.4		781.4			241.6			1,777.4			—		24.9		—		(15.2		)	1,787.1
Total utility revenues	2,906.3		781.4			241.6			3,929.3			—		24.9		—		(15.2		)	3,939.0
Other non-utility revenues	—		0.1			7.8			7.9			—		16.4		4.1		(3.8		)	24.6
Total revenues from contracts with customers	2,906.3		781.5			249.4			3,937.2			—		41.3		4.1		(19.0		)	3,963.6
Other operating revenues	8.3		(6.2		)	(7.1		)	(5.0		)	—		193.8		0.4		(193.8		)	(4.6		)
Total operating revenues	$	2,914.6	$	775.3		$	242.3		$	3,932.2		$	—	$	235.1	$	4.5	$	(212.8	)	$	3,959.0

Revenues from contracts with customers | Electric

Disaggregation of Operating Revenues

Operating revenues disaggregated by revenue source

The following table disaggregates electric utility operating revenues into customer class:

	Electric Utility Operating Revenues
(in millions)	Three Months Ended June 30, 2018		Six Months Ended June 30, 2018
Residential	$	393.7	$	778.0
Small commercial and industrial	353.3		684.0
Large commercial and industrial	241.6		445.5
Other	7.2		14.9
Total retail revenues	995.8		1,922.4
Wholesale	58.4		113.3
Resale	25.1		98.9
Steam	4.5		14.2
Other utility revenues	0.4		3.1
Total electric utility operating revenues	$	1,084.2	$	2,151.9

Revenues from contracts with customers | Natural gas

Disaggregation of Operating Revenues

Operating revenues disaggregated by revenue source

The following tables disaggregate natural gas utility operating revenues into customer class for the three and six months ended June 30, 2018:

(in millions)	Wisconsin		Illinois		Other States		Total Natural Gas Utility Operations
Three Months Ended June 30, 2018
Residential	$	128.1	$	163.7	$	37.9	$	329.7
Commercial and industrial	63.5		47.3		18.7		129.5
Total retail revenues	191.6		211.0		56.6		459.2
Transport	16.4		54.6		6.8		77.8
Other utility revenues *	28.4		8.2		5.5		42.1
Total natural gas utility operating revenues	$	236.4	$	273.8	$	68.9	$	579.1

(in millions)	Wisconsin			Illinois			Other States			Total Natural Gas Utility Operations
Six Months Ended June 30, 2018
Residential	$	484.8		$	496.3		$	161.1		$	1,142.2
Commercial and industrial	251.4			156.7			83.4			491.5
Total retail revenues	736.2			653.0			244.5			1,633.7
Transport	37.4			132.3			16.7			186.4
Other utility revenues *	(19.2		)	(3.9		)	(19.6		)	(42.7		)
Total natural gas utility operating revenues	$	754.4		$	781.4		$	241.6		$	1,777.4

* Includes amounts collected from (refunded to) customers for purchased gas adjustment costs.

Revenues from contracts with customers | Other non-utility revenues

Disaggregation of Operating Revenues

Operating revenues disaggregated by revenue source

Other non-utility operating revenues consist primarily of the following:

(in millions)	Three Months Ended June 30, 2018		Six Months Ended June 30, 2018
We Power revenues	$	6.2	$	12.6
Appliance service revenues	3.9		7.8
Distributed renewable solar project revenues	2.8		4.1
Other	0.1		0.1
Total other non-utility operating revenues	$	13.0	$	24.6

Other operating revenues

Disaggregation of Operating Revenues

Operating revenues disaggregated by revenue source

Other operating revenues consist primarily of the following:

(in millions)	Three Months Ended June 30, 2018			Six Months Ended June 30, 2018
Alternative revenues *	$	(14.2	)	$	(30.3	)
Late payment charges	11.1			22.5
Leases	2.0			3.2
Total other operating revenues	$	(1.1	)	$	(4.6	)

* Negative amounts can result from alternative revenues being reversed to revenues from contracts with customers as the customer is billed for these alternative revenues. Negative amounts can also result from revenues to be refunded to customers subject to decoupling mechanisms and wholesale true-ups, as discussed below.