SEGMENT INFORMATION
Our President and CEO, who is our CODM, reviews financial information presented on a segment basis for purposes of making operating decisions and assessing performance. The CODM regularly reviews net income attributed to common shareholders to measure segment profitability and to allocate resources, including assets, to our businesses. Net income attributed to common shareholders best measures our segment profitability as it reflects all revenues and costs, including the impact on our tax provision from tax credits generated through investments in renewable generation facilities.

Our CODM allocates resources, such as employees, as well as financial and capital resources, to our segments during the annual review of budgets and the capital plan. Our CODM also reviews and revises the resources throughout the year during the monthly forecasting process in order to make timely decisions that align with our overall corporate strategy. The CODM uses each segment’s net income to evaluate performance by comparing actual results to budgeted and forecasted amounts, as well as the ROE earned for each utility within the various utility segments.

Segments were determined based on a combination of factors, including the regulatory environment of each geographical jurisdiction in which the segment operates, equity investment interests, as well as the revenue streams for the products or services provided to customers through electric, natural gas, and renewable operations. See Note 4, Operating Revenues, for more information on disaggregation of operating revenues, including intercompany eliminations. The accounting policies of the segments are the same as those described in Note 1, Summary of Significant Accounting Policies.

At December 31, 2025, we reported six segments, which are described below. All of our operations are located within the United States.

The Wisconsin segment includes the electric and natural gas utility operations of WE, WPS, WG, and UMERC.

The Illinois segment includes the natural gas utility operations of PGL and NSG.

The other states segment includes the natural gas utility operations of MERC and MGU and the non-utility operations of MERC.
The electric transmission segment includes our approximate 60% ownership interest in ATC, a for-profit, transmission-only company regulated by the FERC for cost of service and certain state regulatory commissions for routing and siting of transmission projects, and our approximate 75% ownership interest in ATC Holdco, which was formed to invest in transmission-related projects outside of ATC's traditional footprint. See Note 21, Investment in Transmission Affiliates, for more information on ATC and ATC Holdco.

The non-utility energy infrastructure segment includes:
We Power, which owns and leases generating facilities to WE,
Bluewater, which owns underground natural gas storage facilities in Michigan that provide approximately one-third of the current storage needs for our Wisconsin natural gas utilities, and
WECI, which owns majority interests in multiple renewable generating facilities.

See Note 2, Acquisitions, for more information on recent WECI acquisitions.

The corporate and other segment includes the operations of the WEC Energy Group holding company, the Integrys holding company, the PELLC holding company, Wispark, Wisvest, WECC, and WBS.
The following tables show summarized financial information related to our reportable segments for the years ended December 31, 2025, 2024, and 2023.
 Utility Operations  
2025 (in millions)
WisconsinIllinoisOther States
Total Utility Operations
Electric TransmissionNon-Utility Energy Infrastructure
Corporate and Other
Reconciling Eliminations
WEC Energy Group Consolidated
External revenues $7,295.5 $1,683.6 $527.5 $9,506.6 $ $293.5 $ $ $9,800.1 
Intersegment revenues     476.7  (476.7) 
Fuel and purchased power
1,674.9   1,674.9     1,674.9 
Cost of natural gas sold
871.5 508.0 246.3 1,625.8  9.6  (44.5)1,590.9 
Other operation and maintenance1,737.9 482.2 104.6 2,324.7  95.5 (10.2)(9.2)2,400.8 
Impairments related to Illinois segment 130.0  130.0     130.0 
Depreciation and amortization1,008.1 259.7 49.8 1,317.6  240.2 21.6 (100.9)1,478.5 
Property and revenue taxes
178.7 55.5 26.2 260.4  19.6 0.1  280.1 
Equity in earnings of transmission affiliates    215.8    215.8 
Other income, net (1)
96.5 8.6 0.4 105.5  2.8 30.6 (31.0)107.9 
Interest expense638.7 88.9 19.2 746.8 19.3 123.1 359.0 (353.1)895.1 
Income tax expense (benefit)226.2 45.8 21.0 293.0 48.9 (122.9)(101.0) 118.0 
Preferred stock dividends of subsidiary
1.2   1.2     1.2 
Net loss attributed to noncontrolling interests
     3.2   3.2 
Net income (loss) attributed to common shareholders$1,054.8 $122.1 $60.8 $1,237.7 $147.6 $411.1 $(238.9)$ $1,557.5 
Other Segment Disclosures
Capital expenditures and asset acquisitions$3,860.1 $306.1 $112.5 $4,278.7 $ $504.7 $20.8 $ $4,804.2 
Equity method investments
17.8   17.8 2,280.4  55.7  2,353.9 
Total assets (2)
33,984.7 8,167.7 1,733.3 43,885.7 2,282.8 7,762.9 1,227.6 (3,640.7)51,518.3 

(1)Includes amounts that are not material for interest income and other equity earnings from investments other than from transmission affiliates.

(2)    Total assets at December 31, 2025 reflect an elimination of $2,594.8 million for all lease activity between We Power and WE.
Utility Operations  
2024 (in millions)
WisconsinIllinoisOther States
Total Utility Operations
Electric TransmissionNon-Utility Energy Infrastructure
Corporate and Other
Reconciling Eliminations
WEC Energy Group Consolidated
External revenues $6,330.5 $1,602.4 $449.8 $8,382.7 $— $217.2 $— $— $8,599.9 
Intersegment revenues— — — — — 474.1 — (474.1)— 
Fuel and purchased power
1,455.7 — — 1,455.7 — — — — 1,455.7 
Cost of natural gas sold
661.9 376.7 198.6 1,237.2 — 9.1 — (46.0)1,200.3 
Other operation and maintenance1,547.9 461.5 93.9 2,103.3 — 75.1 (11.3)(9.1)2,158.0 
Impairments related to Illinois segment— 12.1 — 12.1 — — — — 12.1 
Depreciation and amortization919.9 255.4 47.0 1,222.3 — 198.4 22.3 (88.5)1,354.5 
Property and revenue taxes
169.6 59.9 21.0 250.5 — 15.7 0.3 — 266.5 
Equity in earnings of transmission affiliates— — — — 207.5 — — — 207.5 
Other income, net (1)
146.6 7.6 0.3 154.5 — 1.0 54.4 (31.7)178.2 
Interest expense637.3 94.7 16.4 748.4 19.4 99.7 310.0 (362.2)815.3 
Gain on debt extinguishments
— — — — — — (23.1)— (23.1)
Income tax expense (benefit)220.5 97.6 18.7 336.8 47.1 (82.4)(79.5)— 222.0 
Preferred stock dividends of subsidiary
1.2 — — 1.2 — — — — 1.2 
Net loss attributed to noncontrolling interests
— — — — — 4.1 — — 4.1 
Net income (loss) attributed to common shareholders$863.1 $252.1 $54.5 $1,169.7 $141.0 $380.8 $(164.3)$— $1,527.2 
Other Segment Disclosures
Capital expenditures and asset acquisitions$2,347.1 $343.0 $118.3 $2,808.4 $— $945.8 $20.6 $— $3,774.8 
Equity method investments
15.7 — — 15.7 2,108.9 — 67.0 — 2,191.6 
Total assets (2)
30,622.7 8,168.8 1,646.0 40,437.5 2,126.0 7,316.0 1,037.3 (3,553.6)47,363.2 

(1)Includes amounts that are not material for interest income and other equity earnings from investments other than from transmission affiliates.

(2)    Total assets at December 31, 2024 reflect an elimination of $1,525.4 million for all lease activity between We Power and WE.
 Utility Operations  
2023 (in millions)
WisconsinIllinoisOther States
Total Utility Operations
Electric TransmissionNon-Utility Energy Infrastructure
Corporate and Other
Reconciling Eliminations
WEC Energy Group Consolidated
External revenues $6,625.9 $1,557.8 $519.1 $8,702.8 $— $190.1 $0.1 $— $8,893.0 
Intersegment revenues— — — — — 476.4 — (476.4)— 
Fuel and purchased power
1,615.9 — — 1,615.9 — — — — 1,615.9 
Cost of natural gas sold
894.7 443.0 277.2 1,614.9 — 20.5 — (60.1)1,575.3 
Other operation and maintenance1,531.3 397.9 94.5 2,023.7 — 80.1 5.8 (9.1)2,100.5 
Impairments related to Illinois segment— 178.9 — 178.9 — — — — 178.9 
Depreciation and amortization851.5 237.3 43.3 1,132.1 — 188.7 20.9 (77.5)1,264.2 
Property and revenue taxes
179.2 29.9 24.4 233.5 — 16.5 0.2 — 250.2 
Equity in earnings of transmission affiliates— — — — 177.5 — — — 177.5 
Other income, net (1)
137.6 6.7 0.6 144.9 — — 53.3 (20.5)177.7 
Interest expense601.0 88.9 15.9 705.8 19.4 94.3 258.1 (350.2)727.4 
Gain on debt extinguishments— — — — — — (0.5)— (0.5)
Income tax expense (benefit)237.4 48.6 16.3 302.3 39.0 (68.4)(68.3)— 204.6 
Preferred stock dividends of subsidiary1.2 — — 1.2 — — — — 1.2 
Net loss attributed to noncontrolling interests— — — — — 1.2 — — 1.2 
Net income (loss) attributed to common shareholders$851.3 $140.0 $48.1 $1,039.4 $119.1 $336.0 $(162.8)$— $1,331.7 
Other Segment Disclosures
Capital expenditures and asset acquisitions$2,134.4 $489.8 $103.5 $2,727.7 $— $754.4 $25.8 $— $3,507.9 
Equity method investments
14.4 — — 14.4 2,005.9 — 61.3 — 2,081.6 
Total assets (2)
28,527.3 7,970.2 1,571.5 38,069.0 2,006.0 6,404.7 1,100.1 (3,640.1)43,939.7 

(1)    Includes amounts that are not material for interest income and other equity earnings from investments other than from transmission affiliates.

(2)    Total assets at December 31, 2023 reflect an elimination of $1,630.6 million for all lease activity between We Power and WE.

Historical Timeline

Fiscal YearFiled
2025Feb 20, 2026Showing above
2024Feb 21, 2025
2023Feb 22, 2024
2022Feb 23, 2023
2021Feb 24, 2022
2020Feb 25, 2021
2019Feb 27, 2020
2018Feb 26, 2019
2017Feb 28, 2018
2016Feb 28, 2017
2015Feb 26, 2016

About Segments Disclosures

Segment disclosures break a company into its reportable operating units, revealing revenue, profit, and asset allocation that consolidated financial statements obscure. Under ASC 280, segments must match how the chief operating decision maker views the business, providing a window into internal management structure and resource allocation priorities.

Key signals: compare segment margins to identify which units drive profitability and which destroy value. Watch for changes in the number of reportable segments — segment aggregation or disaggregation often coincides with strategic shifts or attempts to obscure declining performance. Intersegment elimination patterns reveal internal pricing practices. The reconciliation between segment totals and consolidated figures exposes corporate overhead allocation and unallocated items. Geographic revenue concentration highlights regulatory and currency exposure. Compare segment-level capital expenditure against segment revenue to assess where management is investing for future growth versus harvesting existing assets.