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v3.22.2.2

SEGMENT INFORMATION (Details) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 USD ($) | Jun. 30, 2022 USD ($) | Mar. 31, 2022 USD ($) | Sep. 30, 2021 USD ($) | Jun. 30, 2021 USD ($) | Mar. 31, 2021 USD ($) | Sep. 30, 2022 USD ($) segment | Sep. 30, 2021 USD ($)
Segment information |  |  |  |  |  |  |  |
Number of reportable segments | segment |  |  |  |  |  |  | 6 |
Total operating revenues | $ 2,003.0 |  |  | $ 1,746.5 |  |  | $ 7,039.0 | $ 6,114.1
Other operation and maintenance | 454.3 |  |  | 473.7 |  |  | 1,357.7 | 1,417.4
Depreciation and amortization | 280.3 |  |  | 271.6 |  |  | 838.0 | 799.2
Equity in earnings of transmission affiliates | 63.7 |  |  | 42.3 |  |  | 148.4 | 126.2
Interest expense | 127.5 |  |  | 118.0 |  |  | 364.9 | 357.5
Income tax expense (benefit) | 73.4 |  |  | 50.8 |  |  | 263.9 | 179.8
Net income (loss) | 301.7 |  |  | 288.7 |  |  | 1,157.5 | 1,074.7
Net income (loss) attributed to common shareholders | 302.0 | $ 287.5 | $ 565.9 | 290.0 | $ 276.0 | $ 510.1 | 1,155.4 | 1,076.1
External Revenues |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | 2,003.0 |  |  | 1,746.5 |  |  | 7,039.0 | 6,114.1
Intersegment Revenues |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.0
Utility Operations |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Other operation and maintenance | 450.3 |  |  | 469.9 |  |  | 1,341.0 | 1,402.4
Depreciation and amortization | 257.4 |  |  | 249.4 |  |  | 766.6 | 730.7
Equity in earnings of transmission affiliates | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.0
Interest expense | 158.6 |  |  | 156.0 |  |  | 472.7 | 472.0
Income tax expense (benefit) | 67.6 |  |  | 39.6 |  |  | 286.9 | 177.4
Net income (loss) | 204.0 |  |  | 214.2 |  |  | 845.1 | 800.5
Net income (loss) attributed to common shareholders | 203.7 |  |  | 213.9 |  |  | 844.2 | 799.6
Utility Operations | External Revenues |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | 1,976.3 |  |  | 1,727.6 |  |  | 6,941.3 | 6,051.1
Utility Operations | Intersegment Revenues |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.0
Reconciling Eliminations |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Other operation and maintenance | (1.6) |  |  | (1.6) |  |  | (7.1) | (7.1)
Depreciation and amortization | (17.3) |  |  | (15.3) |  |  | (50.4) | (44.3)
Equity in earnings of transmission affiliates | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.0
Interest expense | (83.9) |  |  | (85.1) |  |  | (252.1) | (256.0)
Income tax expense (benefit) | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.0
Net income (loss) | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.0
Net income (loss) attributed to common shareholders | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.0
Reconciling Eliminations | External Revenues |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.0
Reconciling Eliminations | Intersegment Revenues |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | $ (113.3) |  |  | (110.8) |  |  | $ (345.7) | (338.0)
ATC |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Equity method investment, ownership interest (as a percent) | 60.00% |  |  |  |  |  | 60.00% |
Equity in earnings of transmission affiliates | $ 63.2 |  |  | 41.7 |  |  | $ 146.8 | 124.1
ATC Holdco |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Equity method investment, ownership interest (as a percent) | 75.00% |  |  |  |  |  | 75.00% |
Equity in earnings of transmission affiliates | $ 0.5 |  |  | 0.6 |  |  | $ 1.6 | 2.1
Wisconsin |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | 1,676.8 |  |  | 1,458.6 |  |  | 5,176.5 | 4,497.8
Wisconsin | Utility Operations |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Other operation and maintenance | 329.1 |  |  | 359.1 |  |  | 979.6 | 1,047.1
Depreciation and amortization | 189.2 |  |  | 184.4 |  |  | 564.0 | 540.4
Equity in earnings of transmission affiliates | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.0
Interest expense | 137.2 |  |  | 137.9 |  |  | 409.1 | 417.8
Income tax expense (benefit) | 63.7 |  |  | 33.6 |  |  | 208.4 | 104.8
Net income (loss) | 195.2 |  |  | 197.8 |  |  | 632.3 | 601.2
Net income (loss) attributed to common shareholders | 194.9 |  |  | 197.5 |  |  | 631.4 | 600.3
Wisconsin | Utility Operations | External Revenues |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | 1,676.8 |  |  | 1,458.6 |  |  | 5,176.5 | 4,497.8
Wisconsin | Utility Operations | Intersegment Revenues |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.0
Illinois |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | 230.3 |  |  | 216.2 |  |  | 1,354.8 | 1,195.1
Illinois | Utility Operations |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Other operation and maintenance | 100.2 |  |  | 91.2 |  |  | 292.9 | 291.3
Depreciation and amortization | 57.9 |  |  | 55.4 |  |  | 172.1 | 162.1
Equity in earnings of transmission affiliates | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.0
Interest expense | 18.1 |  |  | 16.5 |  |  | 53.8 | 49.6
Income tax expense (benefit) | 5.8 |  |  | 7.0 |  |  | 69.1 | 64.4
Net income (loss) | 14.9 |  |  | 19.1 |  |  | 184.7 | 174.8
Net income (loss) attributed to common shareholders | 14.9 |  |  | 19.1 |  |  | 184.7 | 174.8
Illinois | Utility Operations | External Revenues |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | 230.3 |  |  | 216.2 |  |  | 1,354.8 | 1,195.1
Illinois | Utility Operations | Intersegment Revenues |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.0
Other States |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | 69.2 |  |  | 52.8 |  |  | 410.0 | 358.2
Other States | Utility Operations |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Other operation and maintenance | 21.0 |  |  | 19.6 |  |  | 68.5 | 64.0
Depreciation and amortization | 10.3 |  |  | 9.6 |  |  | 30.5 | 28.2
Equity in earnings of transmission affiliates | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.0
Interest expense | 3.3 |  |  | 1.6 |  |  | 9.8 | 4.6
Income tax expense (benefit) | (1.9) |  |  | (1.0) |  |  | 9.4 | 8.2
Net income (loss) | (6.1) |  |  | (2.7) |  |  | 28.1 | 24.5
Net income (loss) attributed to common shareholders | (6.1) |  |  | (2.7) |  |  | 28.1 | 24.5
Other States | Utility Operations | External Revenues |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | 69.2 |  |  | 52.8 |  |  | 410.0 | 358.2
Other States | Utility Operations | Intersegment Revenues |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.0
Electric Transmission |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Other operation and maintenance | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.0
Depreciation and amortization | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.0
Equity in earnings of transmission affiliates | 63.7 |  |  | 42.3 |  |  | 148.4 | 126.2
Interest expense | 4.9 |  |  | 4.8 |  |  | 14.6 | 14.5
Income tax expense (benefit) | 14.3 |  |  | 9.7 |  |  | 32.5 | 28.9
Net income (loss) | 44.5 |  |  | 27.8 |  |  | 101.3 | 82.8
Net income (loss) attributed to common shareholders | 44.5 |  |  | 27.8 |  |  | 101.3 | 82.8
Electric Transmission | External Revenues |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.0
Electric Transmission | Intersegment Revenues |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | $ 0.0 |  |  | 0.0 |  |  | $ 0.0 | 0.0
Electric Transmission | ATC |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Equity method investment, ownership interest (as a percent) | 60.00% |  |  |  |  |  | 60.00% |
Electric Transmission | ATC Holdco |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Equity method investment, ownership interest (as a percent) | 75.00% |  |  |  |  |  | 75.00% |
Non-Utility Energy Infrastructure |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Natural gas storage needs provided to Wisconsin utilities |  |  |  |  |  |  | 33.00% |
Total operating revenues | $ 139.9 |  |  | 129.5 |  |  | $ 443.0 | 400.6
Other operation and maintenance | 12.1 |  |  | 9.9 |  |  | 36.9 | 31.2
Depreciation and amortization | 34.0 |  |  | 31.2 |  |  | 102.3 | 93.5
Equity in earnings of transmission affiliates | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.0
Interest expense | 17.0 |  |  | 17.6 |  |  | 51.6 | 53.5
Income tax expense (benefit) | 1.7 |  |  | 5.0 |  |  | (10.5) | 5.8
Net income (loss) | 70.4 |  |  | 62.8 |  |  | 244.0 | 202.3
Net income (loss) attributed to common shareholders | 71.0 |  |  | 64.4 |  |  | 242.8 | 204.6
Non-Utility Energy Infrastructure | External Revenues |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | 26.6 |  |  | 18.7 |  |  | 97.3 | 62.6
Non-Utility Energy Infrastructure | Intersegment Revenues |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | $ 113.3 |  |  | 110.8 |  |  | $ 345.7 | 338.0
Non-Utility Energy Infrastructure | Bishop Hill III |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
WEC's ownership interest | 90.00% |  |  |  |  |  | 90.00% |
Non-Utility Energy Infrastructure | Coyote Ridge |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
WEC's ownership interest | 80.00% |  |  |  |  |  | 80.00% |
Non-Utility Energy Infrastructure | Upstream |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
WEC's ownership interest | 90.00% |  |  |  |  |  | 90.00% |
Non-Utility Energy Infrastructure | Blooming Grove |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
WEC's ownership interest | 90.00% |  |  |  |  |  | 90.00% |
Non-Utility Energy Infrastructure | Tatanka Ridge |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
WEC's ownership interest | 85.00% |  |  |  |  |  | 85.00% |
Non-Utility Energy Infrastructure | Jayhawk |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
WEC's ownership interest | 90.00% |  |  |  |  |  | 90.00% |
Non-Utility Energy Infrastructure | Thunderhead |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
WEC's ownership interest | 90.00% |  |  |  |  |  | 90.00% |
Corporate and Other |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | $ 0.1 |  |  | 0.2 |  |  | $ 0.4 | 0.4
Other operation and maintenance | (6.5) |  |  | (4.5) |  |  | (13.1) | (9.1)
Depreciation and amortization | 6.2 |  |  | 6.3 |  |  | 19.5 | 19.3
Equity in earnings of transmission affiliates | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.0
Interest expense | 30.9 |  |  | 24.7 |  |  | 78.1 | 73.5
Income tax expense (benefit) | (10.2) |  |  | (3.5) |  |  | (45.0) | (32.3)
Net income (loss) | (17.2) |  |  | (16.1) |  |  | (32.9) | (10.9)
Net income (loss) attributed to common shareholders | (17.2) |  |  | (16.1) |  |  | (32.9) | (10.9)
Corporate and Other | External Revenues |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | 0.1 |  |  | 0.2 |  |  | 0.4 | 0.4
Corporate and Other | Intersegment Revenues |  |  |  |  |  |  |  |
Segment information |  |  |  |  |  |  |  |
Total operating revenues | $ 0.0 |  |  | $ 0.0 |  |  | $ 0.0 | $ 0.0

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