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OPERATING REVENUES - OTHER NON-UTILITY OPERATING REVENUES (Details) $ in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Aug. 31, 2018 MW | Sep. 30, 2018 USD ($) | Sep. 30, 2018 USD ($)
We Power revenues |  |  |
Disaggregation of Operating Revenues |  |  |
Revenues amortized from deferred revenue during the period |  | $ 6.4 | $ 19.0
Appliance service repairs | Maximum |  |  |
Disaggregation of Operating Revenues |  |  |
Duration of contract for remaining performance obligations in contract |  | 1 year | 1 year
Revenues from contracts with customers |  |  |
Disaggregation of Operating Revenues |  |  |
Revenues from contracts with customers |  | $ 1,635.7 | $ 5,599.3
Other non-utility revenues | Revenues from contracts with customers |  |  |
Disaggregation of Operating Revenues |  |  |
Revenues from contracts with customers |  | 13.6 | 38.2
Other non-utility revenues | Revenues from contracts with customers | We Power revenues |  |  |
Disaggregation of Operating Revenues |  |  |
Revenues from contracts with customers |  | 6.4 | 19.0
Other non-utility revenues | Revenues from contracts with customers | Distributed renewable solar project revenues |  |  |
Disaggregation of Operating Revenues |  |  |
Revenues from contracts with customers |  | 2.3 | 6.4
Other non-utility revenues | Revenues from contracts with customers | Wind generation revenues |  |  |
Disaggregation of Operating Revenues |  |  |
Revenues from contracts with customers |  | 0.8 | 0.8
Other non-utility revenues | Revenues from contracts with customers | Other |  |  |
Disaggregation of Operating Revenues |  |  |
Revenues from contracts with customers |  | 0.1 | 0.2
Transferred over time | Other non-utility revenues | Revenues from contracts with customers | Appliance service repairs |  |  |
Disaggregation of Operating Revenues |  |  |
Revenues from contracts with customers |  | $ 4.0 | $ 11.8
Bishop Hill III Wind Energy Center |  |  |
Disaggregation of Operating Revenues |  |  |
WEC's ownership interest in Bishop Hill III Wind Energy Center | 80.00% |  |
Capacity of Bishop Hill III Wind Energy Center | MW | 132 |  |
Duration of offtake agreement for the sale of energy produced | 22 years |  |

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