OPERATING REVENUES (Tables) - Utility

12 Months Ended

Dec. 31, 2019

Disaggregation of Operating Revenues

Operating revenues disaggregated by revenue source

The following tables present our operating revenues disaggregated by revenue source for our utility segment. We do not have any revenues associated with our other segment. We disaggregate revenues into categories that depict how the nature, amount, timing, and uncertainty of revenues and cash flows are affected by economic factors. For our utility segment, 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 year ended December 31, 2017, due to our adoption of ASU 2014-09, Revenues from Contracts with Customers, under the modified retrospective method.

	Wisconsin Public Service Corporation
	Year Ended December 31
(in millions)	2019		2018
Electric utility	$	1,114.1	$	1,192.2
Natural gas utility	295.5		305.5
Total revenues from contracts with customers	1,409.6		1,497.7
Other operating revenues	2.3		0.8
Total operating revenues	$	1,411.9	$	1,498.5

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:

	Electric Utility Operating Revenues
	Year Ended December 31
(in millions)	2019		2018
Residential	$	369.4	$	381.5
Small commercial and industrial	355.9		371.4
Large commercial and industrial	223.3		238.8
Other	8.4		8.5
Total retail revenues	957.0		1,000.2
Wholesale	105.8		142.3
Resale	28.7		38.5
Other utility revenues	22.6		11.2
Total electric utility operating revenues	$	1,114.1	$	1,192.2

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:

	Natural Gas Utility Operating Revenues
	Year Ended December 31
(in millions)	2019			2018
Residential	$	178.4		$	177.7
Commercial and industrial	105.9			107.6
Total retail revenues	284.3			285.3
Transport	17.1			19.7
Other utility revenues *	(5.9		)	0.5
Total natural gas utility operating revenues	$	295.5		$	305.5

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

Other operating revenues

Disaggregation of Operating Revenues

Operating revenues disaggregated by revenue source

Other operating revenues consist primarily of the following:

	Year Ended December 31
(in millions)	2019			2018
Late payment charges	$	3.2		$	2.9
Leases	0.2			0.2
Alternative revenues *	(1.1		)	(2.3		)
Total other operating revenues	$	2.3		$	0.8

*

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 wholesale true-ups, as discussed in Note 1(d), Operating Revenues.