| Metric | Oct 31, 2024 FY24 Q3 | Feb 4, 2025 FY24 Q4 | May 6, 2025 FY25 Q1 | Jul 30, 2025 FY25 Q2 | Oct 30, 2025 FY25 Q3 | Jan 5, 2026 FY25 Q4 | May 5, 2026 FY26 Q1 | Jul 29, 2026 FY26 Q2 |
|---|---|---|---|---|---|---|---|---|
| For FY2050 | ||||||||
| Net Carbon Neutral Electric Generation Goal | — | — | — | — | — | New“net carbon neutral electric generation” | — | — |
| For FY2035 | ||||||||
| Pipe Retirement Plan | — | — | — | — | — | New“over 1,000 miles” | — | — |
| For FY2032 | ||||||||
| Coal Elimination Goal | — | — | — | — | — | New“eliminate coal as an energy source” | — | — |
| For FY2031 | ||||||||
| Additional ATC Investment Expected Beyond Plan | — | — | — | — | — | New“$800 million additional investment expected 2031 and beyond (2024 dollars)” | — | — |
| Weston Unit 3 Coal Retirement | — | — | — | — | — | New“328 MW” | — | — |
| For FY2030 | ||||||||
| ATC Projected Capital Expenditures | — | — | — | — | — | New“$1,502” | — | — |
| Coal Use as Backup Fuel Only | — | — | — | — | — | New“use coal only as a backup fuel” | — | — |
| Mount Pleasant Corridor Demand Forecast | — | — | — | — | — | New“2.1 GW” | — | — |
| Port Washington Corridor Demand Forecast | — | — | — | — | — | New“1.3 GW” | — | — |
| WEC Portion (60%) of ATC Capital Expenditures | — | — | — | — | — | New“$901” | — | — |
| For FY2029 | ||||||||
| ATC Projected Capital Expenditures | — | — | — | — | — | New“$1,493” | — | — |
| WEC Portion (60%) of ATC Capital Expenditures | — | — | — | — | — | New“$896” | — | — |
| For FY2028 | ||||||||
| Annual investment for pipe replacement | — | — | — | — | — | New“$500 million” | — | — |
| Annual PRP Investment Ramp-Up | — | — | — | — | — | New“$500 million” | — | — |
| ATC Investment Capital Projection | — | — | — | — | — | New“$886.1” | — | — |
| ATC Projected Capital Expenditures | — | — | — | — | — | New“$1,477” | — | — |
| Bluewater Capital Projection | — | — | — | — | — | New“$2.3” | — | — |
| Corporate and Other Capital Projection | — | — | — | — | — | New“$21.4” | — | — |
| Electric | — | — | — | — | — | New“6.0%-7.0%” | — | — |
| Illinois Segment Capital Projection | — | — | — | — | — | New“$744.0” | — | — |
| Nonutility Energy Infrastructure Capital Projection | — | — | — | — | — | New“$125.0” | — | — |
| Other States Segment Capital Projection | — | — | — | — | — | New“$125.5” | — | — |
| Subtotal Capital Projection | — | — | — | — | — | New“$6,965.6” | — | — |
| Total WEC Capital Projection | — | — | — | — | — | New“$7,851.7” | — | — |
| WEC Portion (60%) of ATC Capital Expenditures | — | — | — | — | — | New“$886” | — | — |
| Wisconsin Electric Capital Projection | — | — | — | — | — | New“$4,666.0” | — | — |
| Wisconsin Segment Capital Projection | — | — | — | — | — | New“$5,949.7” | — | — |
| Wisconsin Segment Electric Sales Growth Forecast | — | — | — | — | — | New“6.0%-7.0%” | — | — |
| Wisconsin Segment Gas Sales Growth Forecast | — | — | — | — | — | New“0.7%-1.0%” | — | — |
| For FY2027 | ||||||||
| ATC Investment Capital Projection | — | — | — | — | — | New“$802.0” | — | — |
| ATC Projected Capital Expenditures | — | — | — | — | — | New“$1,337” | — | — |
| Bluewater Capital Projection | — | — | — | — | — | New“$1.6” | — | — |
| Corporate and Other Capital Projection | — | — | — | — | — | New“$15.6” | — | — |
| Illinois Segment Capital Projection | — | — | — | — | — | New“$738.4” | — | — |
| Nonutility Energy Infrastructure Capital Projection | — | — | — | — | — | New“$132.5” | — | — |
| North Shore Gas Forecasted Rate Base | — | — | — | — | — | New“$449M” | — | — |
| North Shore Gas Proposed Base Rate Increase | — | — | — | — | — | New“$14.4M” | — | — |
| North Shore Gas Proposed Equity Ratio | — | — | — | — | — | New“54.0%” | — | — |
| North Shore Gas Proposed ROE | — | — | — | — | — | New“10.10%” | — | — |
| Other States Segment Capital Projection | — | — | — | — | — | New“$110.5” | — | — |
| Peoples Gas Forecasted Rate Base | — | — | — | — | — | New“$4,678M” | — | — |
| Peoples Gas Proposed Base Rate Increase | — | — | — | — | — | New“$202.2M” | — | — |
| Subtotal Capital Projection | — | — | — | — | — | New“$6,949.5” | — | — |
| Total WEC Capital Projection | — | — | — | — | — | New“$7,751.5” | — | — |
| WEC Portion (60%) of ATC Capital Expenditures | — | — | — | — | — | New“$802” | — | — |
| Wisconsin Electric Capital Projection | — | — | — | — | — | New“$4,670.5” | — | — |
| Wisconsin Segment Capital Projection | — | — | — | — | — | New“$5,952.5” | — | — |
| For FY2026 | ||||||||
| Adjusted EPS | — | — | — | — | — | New“$5.51-$5.61” | — | — |
| Earnings | — | — | — | — | — | — | — | New“$5.51 to $5.61 per share” |
| Earnings per share | — | — | — | — | — | — | New“$5.51 to $5.61” | — |
| EPS Midpoint | — | — | — | — | — | New“$5.56 per share” | — | — |
| Annualized Dividend Rate | — | — | — | — | — | New“$3.81 per share” | — | — |
| ATC Economic Growth Capital Driver | — | — | — | — | — | New“$1.4 billion” | — | — |
| ATC Investment Capital Projection | — | — | — | — | — | New“$656.9” | — | — |
| ATC Projected Capital Expenditures | — | — | — | — | — | New“$1,095” | — | — |
| Average Annual ATC Depreciation | — | — | — | — | — | New“$190 million” | — | — |
| Average Annual Utility Depreciation | — | — | — | — | — | New“$1.6 billion annually” | — | — |
| Capital Allocated to Regulated Businesses | — | — | — | — | — | New“100%” | — | — |
| Cash from Operations | — | — | — | — | — | New“$20.5 - $21.5” | — | — |
| CCGT Summer Upgrades Capacity | — | — | — | — | — | New“150 MW” | — | — |
| CCGT Summer Upgrades Investment | — | — | — | — | — | New“$280 million” | — | — |
| Coal to Gas Conversions and Fuel Oil Backup Investment | — | — | — | — | — | New“$370 million” | — | — |
| Combustion Turbines Capacity | — | — | — | — | — | New“3,300 MW” | — | — |
| Combustion Turbines Investment | — | — | — | — | — | New“$5.2 billion” | — | — |
| Common Equity | — | — | — | — | — | New“$4.8 - $5.2” | — | — |
| Corporate and Other Capital Projection | — | — | — | — | — | New“$15.3” | — | — |
| Depreciation at ATC | — | — | — | — | — | New“$190 million” | — | — |
| Depreciation at utilities | — | — | — | — | — | New“$1.6 billion annually” | — | — |
| Dividends (Cash Use) | — | — | — | — | — | New“$7.6 - $7.8” | — | — |
| Electric Demand Growth (Wisconsin Segment) | — | — | — | — | — | New“3.4 GW (~40%)” | — | — |
| Electric Distribution Capital Increase | — | — | — | — | — | New“$200 million increase” | — | — |
| Equity Issuances | — | — | — | — | — | New“$900 - $1,100” | — | — |
| Holding Company Planned Financing | — | — | — | — | — | New“$1,800 - $2,400” | — | — |
| Illinois Segment Capital Projection | — | — | — | — | — | New“$566.6” | — | — |
| Incremental Capital Plan Investment | — | — | — | — | — | New“$8.5 billion” | — | — |
| Incremental Debt | — | — | — | — | — | New“$13.7 - $14.3” | — | — |
| Incremental Debt - junior subordinated notes or other securities with equity content | — | — | — | — | — | New“$5.0B - $6.0B” | — | — |
| LNG Storage Facilities Capacity | — | — | — | — | — | New“6 Bcf” | — | — |
| LNG Storage Facilities Investment | — | — | — | — | — | New“$1.3B” | — | — |
| LRTP Tranche 1 Capital | — | — | — | — | — | New“$700 million” | — | — |
| LRTP Tranche 2 Capital | — | — | — | — | — | New“$400 million” | — | — |
| Moody's CFO Pre-WC/Debt Target | — | — | — | — | — | New“>16%” | — | — |
| Natural Gas Generation Capital Increase | — | — | — | — | — | New“$3.4 billion increase” | — | — |
| Nonutility Energy Infrastructure Capital Projection | — | — | — | — | — | New“$98.2” | — | — |
| Oak Creek Units 7-8 Coal Retirement | — | — | — | — | — | New“611 MW” | — | — |
| Other States Segment Capital Projection | — | — | — | — | — | New“$115.0” | — | — |
| Pipe Retirement Program (PRP) Capital Increase | — | — | — | — | — | New“$1.5 billion increase” | — | — |
| Quarterly Dividend | — | — | — | — | — | New“95.25 cents per share” | — | — |
| Quarterly dividend on the company's common stock | — | — | — | — | — | New“95.25 cents per share” | — | — |
| Regulated Renewables Battery Storage Capacity | — | — | — | — | — | New“1,780 MW” | — | — |
| Regulated Renewables Battery Storage Investment | — | — | — | — | — | New“$2.2 billion” | — | — |
| Regulated Renewables Capital Increase | — | — | — | — | — | New“$2.5 billion increase” | — | — |
| Regulated Renewables Grand Total Capacity | — | — | — | — | — | New“6,035 MW” | — | — |
| Regulated Renewables Grand Total Investment | — | — | — | — | — | New“$11.6 billion” | — | — |
| Regulated Renewables Solar Capacity | — | — | — | — | — | New“3,700 MW” | — | — |
| Regulated Renewables Solar Investment | — | — | — | — | — | New“$7.6 billion” | — | — |
| Regulated Renewables Wind Capacity | — | — | — | — | — | New“555 MW” | — | — |
| Regulated Renewables Wind Investment | — | — | — | — | — | New“$1.8 billion” | — | — |
| RICE Generation Capacity | — | — | — | — | — | New“180 MW” | — | — |
| RICE Generation Investment | — | — | — | — | — | New“$240 million” | — | — |
| S&P FFO to Debt Target | — | — | — | — | — | New“>15%” | — | — |
| Subtotal Capital Projection | — | — | — | — | — | New“$5,018.1” | — | — |
| Thermal Generation Fleet and LNG Capacity Investment | — | — | — | — | — | New“$7.4B” | — | — |
| Thermal Generation Fleet Investment | — | — | — | — | — | New“$6.1B” | — | — |
| Total WEC Capital Projection | — | — | — | — | — | New“$5,675.0” | — | — |
| Transmission Capital Increase | — | — | — | — | — | New“$900 million increase” | — | — |
| Utilities & Energy Infrastructure Planned Financing | — | — | — | — | — | New“$2,600 - $3,100” | — | — |
| WEC Infrastructure Capital Change | — | — | — | — | — | New“$400 million decrease” | — | — |
| WEC Portion (60%) of ATC Capital Expenditures | — | — | — | — | — | New“$657” | — | — |
| WEC portion of ATC investment | — | — | — | — | — | New“$4.1 billion” | — | — |
| Wisconsin Electric Capital Projection | — | — | — | — | — | New“$3,212.1” | — | — |
| Wisconsin Segment Capital Projection | — | — | — | — | — | New“$4,223.0” | — | — |
| For FY2025 | ||||||||
| Adjusted EPS - Non-GAAP Basis | — | — | — | — | — | New“$5.17 - $5.27” | — | — |
| Earnings | — | — | New“$5.17 to $5.27 per share” | Reiterated“$5.17 to $5.27 per share” | Reiterated“$5.17 to $5.27 per share” | — | — | — |
| Earnings growth from 2024 adjusted midpoint | — | New“7.6 percent” | — | — | — | — | — | — |
| Earnings per share | — | New“$5.17 to $5.27 per share” | — | — | — | — | — | — |
| Earnings per share midpoint | — | New“$5.22 per share” | — | — | — | — | — | — |
| EPS - 2025 Adjusted | — | — | — | — | — | New“$5.17 - $5.27” | — | — |
| EPS - GAAP basis | — | — | — | — | — | New“$4.83 - $4.93” | — | — |
| Quarterly cash dividend | — | New“89.25 cents per share” | — | — | — | — | — | — |
| For FY2024 | ||||||||
| Earnings (adjusted basis) | New“$4.80 to $4.90 per share” | — | — | — | — | — | — | — |
| Earnings (GAAP basis) | New“$4.74 to $4.84 per share” | — | — | — | — | — | — | — |
| WEC Energy Group adjusted earnings - High End of Range | New“$4.90” | — | — | — | — | — | — | — |
| WEC Energy Group adjusted earnings - Low End of Range | New“$4.80” | — | — | — | — | — | — | — |
| WEC Energy Group GAAP earnings - High End of Range | New“$4.84” | — | — | — | — | — | — | — |
| WEC Energy Group GAAP earnings - Low End of Range | New“$4.74” | — | — | — | — | — | — | — |
| No period stated | ||||||||
| Long-Term EPS Growth | — | — | — | — | — | New“7.0% to 8.0%” | — | — |
| WEC Energy Group adjusted earnings | New“$ 4.80” | — | — | — | — | — | — | — |
| WEC Energy Group GAAP earnings | New“$ 4.74” | — | — | — | — | — | — | — |
| Capital Plan (Cash Use) | — | — | — | — | — | New“$32.3” | — | — |
| Dividend growth rate | — | — | — | — | — | New“6.5-7%” | — | — |
| Dividend Growth Rate Target | — | — | — | — | — | New“6.5-7%” | — | — |
| Dividend Payout Ratio Target | — | — | — | — | — | New“65-70% of earnings” | — | — |
| Net loss related to ICC disallowances | New“0.06” | — | — | — | — | — | — | — |
| Payout ratio | — | — | — | — | — | New“65-70% of earnings” | — | — |
| Peoples Gas Typical Residential Customer Bill Impact | — | — | — | — | — | New“$10 to $11 per month” | — | — |
| VLC Tariff Equity Ratio | — | — | — | — | — | New“57%” | — | — |
| VLC Tariff Return on Equity | — | — | — | — | — | New“Return on Equity range of 10.48% to 10.98%” | — | — |
| Weston 4 Additional Capacity Acquisition | — | — | — | — | — | New“165 MW” | — | — |