XML 48 R36.htm IDEA: XBRL DOCUMENT
v3.19.2

OPERATING REVENUES (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2019
Disaggregation of Operating Revenues |
Operating revenues disaggregated by revenue source | The following tables present our operating revenues disaggregated by revenue source. We do not have any revenues associated with our electric transmission segment, which includes investments accounted for using the equity method. 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 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.
(in millions) |  | Wisconsin |  | Illinois |  | Other States |  | Total Utility Operations |  | Non-Utility Energy Infrastructure |  | Corporate and Other |  | Reconciling Eliminations |  | WEC Energy Group Consolidated
Three Months Ended June 30, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Electric |  | $ | 1,021.9 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,021.9 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 1,021.9 |
Natural gas |  | 227.3 |  |  | 232.8 |  |  | 64.0 |  |  | 524.1 |  |  | 9.8 |  |  | — |  |  | (9.1 | ) |  | 524.8 |
Total regulated revenues |  | 1,249.2 |  |  | 232.8 |  |  | 64.0 |  |  | 1,546.0 |  |  | 9.8 |  |  | — |  |  | (9.1 | ) |  | 1,546.7 |
Other non-utility revenues |  | — |  |  | — |  |  | 4.2 |  |  | 4.2 |  |  | 15.3 |  |  | 0.8 |  |  | (3.1 | ) |  | 17.2 |
Total revenues from contracts with customers |  | 1,249.2 |  |  | 232.8 |  |  | 68.2 |  |  | 1,550.2 |  |  | 25.1 |  |  | 0.8 |  |  | (12.2 | ) |  | 1,563.9 |
Other operating revenues |  | 4.1 |  |  | 10.1 |  |  | 0.6 |  |  | 14.8 |  |  | 98.2 |  |  | 0.1 |  |  | (86.8 | ) |  | 26.3 |
Total operating revenues |  | $ | 1,253.3 |  |  | $ | 242.9 |  |  | $ | 68.8 |  |  | $ | 1,565.0 |  |  | $ | 123.3 |  |  | $ | 0.9 |  |  | $ | (99.0 | ) |  | $ | 1,590.2 |
(in millions) |  | Wisconsin |  | Illinois |  | Other States |  | Total Utility Operations |  | 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 regulated 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 |  | Non-Utility Energy Infrastructure |  | Corporate and Other |  | Reconciling Eliminations |  | WEC Energy Group Consolidated
Six Months Ended June 30, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Electric |  | $ | 2,083.7 |  |  | $ | — |  |  | $ | — |  |  | $ | 2,083.7 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 2,083.7 |
Natural gas |  | 792.2 |  |  | 777.4 |  |  | 249.2 |  |  | 1,818.8 |  |  | 26.2 |  |  | — |  |  | (23.8 | ) |  | 1,821.2 |
Total regulated revenues |  | 2,875.9 |  |  | 777.4 |  |  | 249.2 |  |  | 3,902.5 |  |  | 26.2 |  |  | — |  |  | (23.8 | ) |  | 3,904.9 |
Other non-utility revenues |  | — |  |  | 0.1 |  |  | 8.3 |  |  | 8.4 |  |  | 28.6 |  |  | 2.3 |  |  | (3.8 | ) |  | 35.5 |
Total revenues from contracts with customers |  | 2,875.9 |  |  | 777.5 |  |  | 257.5 |  |  | 3,910.9 |  |  | 54.8 |  |  | 2.3 |  |  | (27.6 | ) |  | 3,940.4 |
Other operating revenues |  | 10.8 |  |  | 1.9 |  |  | (3.5 | ) |  | 9.2 |  |  | 196.3 |  |  | 0.3 |  |  | (178.6 | ) |  | 27.2 |
Total operating revenues |  | $ | 2,886.7 |  |  | $ | 779.4 |  |  | $ | 254.0 |  |  | $ | 3,920.1 |  |  | $ | 251.1 |  |  | $ | 2.6 |  |  | $ | (206.2 | ) |  | $ | 3,967.6 |
(in millions) |  | Wisconsin |  | Illinois |  | Other States |  | Total Utility Operations |  | 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 regulated 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
|  | Three Months Ended June 30 |  | Six Months Ended June 30
(in millions) |  | 2019 |  | 2018 |  | 2019 |  | 2018
Residential |  | $ | 356.7 |  |  | $ | 393.7 |  |  | $ | 763.4 |  |  | $ | 778.0 |
Small commercial and industrial |  | 331.3 |  |  | 353.3 |  |  | 665.2 |  |  | 684.0 |
Large commercial and industrial |  | 217.8 |  |  | 241.6 |  |  | 430.1 |  |  | 445.5 |
Other |  | 7.3 |  |  | 7.2 |  |  | 15.1 |  |  | 14.9 |
Total retail revenues |  | 913.1 |  |  | 995.8 |  |  | 1,873.8 |  |  | 1,922.4 |
Wholesale |  | 44.6 |  |  | 58.4 |  |  | 92.3 |  |  | 113.3 |
Resale |  | 49.4 |  |  | 25.1 |  |  | 90.2 |  |  | 98.9 |
Steam |  | 4.3 |  |  | 4.5 |  |  | 14.4 |  |  | 14.2 |
Other utility revenues |  | 10.5 |  |  | 0.4 |  |  | 13.0 |  |  | 3.1 |
Total electric utility operating revenues |  | $ | 1,021.9 |  |  | $ | 1,084.2 |  |  | $ | 2,083.7 |  |  | $ | 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:
(in millions) |  | Wisconsin |  | Illinois |  | Other States |  | Total Natural Gas Utility Operating Revenues
Three Months Ended June 30, 2019 |  |  |  |  |  |  |  |  |  |  |
Residential |  | $ | 126.2 |  |  | $ | 154.1 |  |  | $ | 39.3 |  |  | $ | 319.6 |
Commercial and industrial |  | 55.8 |  |  | 45.1 |  |  | 20.5 |  |  | 121.4 |
Total retail revenues |  | 182.0 |  |  | 199.2 |  |  | 59.8 |  |  | 441.0 |
Transport |  | 16.2 |  |  | 46.8 |  |  | 6.3 |  |  | 69.3 |
Other utility revenues * |  | 29.1 |  |  | (13.2 | ) |  | (2.1 | ) |  | 13.8 |
Total natural gas utility operating revenues |  | $ | 227.3 |  |  | $ | 232.8 |  |  | $ | 64.0 |  |  | $ | 524.1 |
(in millions) |  | Wisconsin |  | Illinois |  | Other States |  | Total Natural Gas Utility Operating Revenues
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 Operating Revenues
Six Months Ended June 30, 2019 |  |  |  |  |  |  |  |  |  |  |
Residential |  | $ | 510.1 |  |  | $ | 508.1 |  |  | $ | 164.5 |  |  | $ | 1,182.7 |
Commercial and industrial |  | 255.5 |  |  | 161.3 |  |  | 92.5 |  |  | 509.3 |
Total retail revenues |  | 765.6 |  |  | 669.4 |  |  | 257.0 |  |  | 1,692.0 |
Transport |  | 38.1 |  |  | 134.0 |  |  | 17.4 |  |  | 189.5 |
Other utility revenues * |  | (11.5 | ) |  | (26.0 | ) |  | (25.2 | ) |  | (62.7 | )
Total natural gas utility operating revenues |  | $ | 792.2 |  |  | $ | 777.4 |  |  | $ | 249.2 |  |  | $ | 1,818.8 |
(in millions) |  | Wisconsin |  | Illinois |  | Other States |  | Total Natural Gas Utility Operating Revenues
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:
|  | Three Months Ended June 30 |  | Six Months Ended June 30
(in millions) |  | 2019 |  | 2018 |  | 2019 |  | 2018
We Power revenues |  | $ | 6.3 |  |  | $ | 6.2 |  |  | $ | 12.7 |  |  | $ | 12.6 |
Appliance service revenues |  | 4.2 |  |  | 3.9 |  |  | 8.3 |  |  | 7.8 |
Distributed renewable solar project revenues |  | 0.8 |  |  | 2.8 |  |  | 2.3 |  |  | 4.1 |
Wind generation revenues * |  | 5.9 |  |  | — |  |  | 12.1 |  |  | — |
Other |  | — |  |  | 0.1 |  |  | 0.1 |  |  | 0.1 |
Total other non-utility operating revenues |  | $ | 17.2 |  |  | $ | 13.0 |  |  | $ | 35.5 |  |  | $ | 24.6 |
* | In 2019, we continued to invest in wind generation facilities and recognize revenues from these wind generation facilities as energy is produced and delivered to the customer within the production month.
Other operating revenues |
Disaggregation of Operating Revenues |
Operating revenues disaggregated by revenue source | Other operating revenues consist primarily of the following:
|  | Three Months Ended June 30 |  | Six Months Ended June 30
(in millions) |  | 2019 |  | 2018 |  | 2019 |  | 2018
Alternative revenues * |  | $ | 1.1 |  |  | $ | (14.2 | ) |  | $ | (18.6 | ) |  | $ | (30.3 | )
Late payment charges |  | 12.0 |  |  | 11.1 |  |  | 25.2 |  |  | 22.5 |
Rental revenues |  | 13.2 |  |  | 2.0 |  |  | 20.6 |  |  | 3.2 |
Total other operating revenues |  | $ | 26.3 |  |  | $ | (1.1 | ) |  | $ | 27.2 |  |  | $ | (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.

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DisaggregationOfRevenueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
Name: | us-gaap_DisaggregationOfRevenueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | wec_TypesofOperatingRevenuesAxis=us-gaap_RevenueFromContractWithCustomerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_ElectricityUsRegulatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_NaturalGasUsRegulatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=wec_OthernonutilityrevenuesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | wec_TypesofOperatingRevenuesAxis=wec_OtheroperatingrevenuesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |