OPERATING REVENUES (Tables)

3 Months Ended

Mar. 31, 2018

Disaggregation of Operating Revenues

Operating revenues disaggregated by revenue source

The following tables present our operating revenues disaggregated by revenue source. Comparable amounts have not been presented for the three months ended March 31, 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 March 31, 2018
Electric	$	1,067.7	$	—		$	—		$	1,067.7		$	—	$	—	$	—	$	—		$	1,067.7
Natural gas	518.0		507.6			172.7			1,198.3			—		14.9		—		(2.5		)	1,210.7
Total utility revenues	1,585.7		507.6			172.7			2,266.0			—		14.9		—		(2.5		)	2,278.4
Other non-utility revenues	—		—			3.9			3.9			—		7.1		1.3		(0.7		)	11.6
Total revenues from contracts with customers	1,585.7		507.6			176.6			2,269.9			—		22.0		1.3		(3.2		)	2,290.0
Other operating revenues	3.4		(0.3		)	(6.7		)	(3.6		)	—		96.1		0.1		(96.1		)	(3.5		)
Total operating revenues	$	1,589.1	$	507.3		$	169.9		$	2,266.3		$	—	$	118.1	$	1.4	$	(99.3	)	$	2,286.5

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 for the current period:

(in millions)	Electric Utility Operating Revenues
Three Months Ended March 31, 2018
Residential	$	384.3
Small commercial and industrial	330.7
Large commercial and industrial	203.9
Other	7.7
Total retail revenues	926.6
Wholesale	54.9
Resale	73.8
Steam	9.7
Other utility revenues	2.7
Total electric utility operating revenues	$	1,067.7

Revenues from contracts with customers | Natural gas

Disaggregation of Operating Revenues

Operating revenues disaggregated by revenue source

The following table disaggregates natural gas utility operating revenues into customer class for the current period:

(in millions)	Wisconsin			Illinois			Other States			Total Natural Gas Utility Operations
Three Months Ended March 31, 2018
Residential	$	356.7		$	332.6		$	123.2		$	812.5
Commercial and industrial	187.9			109.4			64.7			362.0
Total retail revenues	544.6			442.0			187.9			1,174.5
Transport	21.0			77.7			9.9			108.6
Other utility revenues *	(47.6		)	(12.1		)	(25.1		)	(84.8		)
Total natural gas utility operating revenues	$	518.0		$	507.6		$	172.7		$	1,198.3

* Includes amounts (refunded to) collected from 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 March 31, 2018
We Power revenues	$	6.4
Appliance service revenues	3.9
Distributed renewable solar project revenues	1.3
Total other non-utility operating revenues	$	11.6

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 March 31, 2018
Alternative revenues *	$	(16.1	)
Late payment charges	11.4
Leases	1.2
Total other operating revenues	$	(3.5	)

* 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.