WEC Energy GroupKPI data tables
WEC Energy Group operating metrics behind the KPI charts, newest period first (up to 24 periods per chart). Periods use each company's own fiscal labels where the source does; each table names its source.
| Period | Residential | Small commercial and industrial | Large commercial and industrial | Wholesale and other |
|---|---|---|---|---|
| 2025 | 1,512.2 | 181.9 | 0.8 | 1.7 |
| 2024 | 1,499.4 | 180.8 | 0.8 | 1.7 |
| 2023 | 1,487.9 | 179 | 0.8 | 1.6 |
| 2022 | 1,471.4 | 176.9 | 0.9 | 1.6 |
Source: WEC Energy Group Form 10-K for the year ended December 31, 2025, Item 1 Customers table (electric customers, in thousands): https://www.sec.gov/Archives/edgar/data/783325/000078332526000018/wec-20251231.htm. Year-end 2022 from Form 10-K for the year ended December 31, 2024, Item 1 Customers table: https://www.sec.gov/Archives/edgar/data/783325/000010781525000103/wec-20241231.htm.
| Period | Residential | Small commercial and industrial | Large commercial and industrial | Other | Wholesale | Resale |
|---|---|---|---|---|---|---|
| 2025 | 11,411 | 13,019.5 | 12,061.3 | 117.7 | 1,747.3 | 5,702.7 |
| 2024 | 11,025.3 | 12,815.8 | 11,966.7 | 125.1 | 1,648.2 | 5,863.1 |
| 2023 | 10,966.8 | 12,729.9 | 11,992.8 | 128.6 | 1,821.8 | 6,015.5 |
| 2022 | 11,372.6 | 12,867.1 | 12,181.6 | 139 | 2,444.7 | 3,962.8 |
Source: WEC Energy Group Form 10-K for the year ended December 31, 2025, Item 7 Wisconsin segment Electric Sales Volumes (MWh in thousands): https://www.sec.gov/Archives/edgar/data/783325/000078332526000018/wec-20251231.htm. 2022 and 2023 from Form 10-K for the year ended December 31, 2024, same table: https://www.sec.gov/Archives/edgar/data/783325/000010781525000103/wec-20241231.htm. Q2 2026 large C&I comparison from Form 10-Q for the quarter ended June 30, 2026, Wisconsin segment Electric Sales Volumes: https://www.sec.gov/Archives/edgar/data/783325/000078332526000087/wec-20260630.htm.
| Period | Coal (company-owned) | Natural gas combined cycle | Natural gas steam turbine | Natural gas/oil peaking | Company-owned renewables | Nuclear PPA (Point Beach) | Other purchased power |
|---|---|---|---|---|---|---|---|
| 2026 estimate | 30.7 | 27.7 | 0.5 | 5 | 9.1 | 19.2 | 7.8 |
| 2025 | 30.5 | 24.1 | 0.8 | 7.9 | 8.4 | 19.8 | 8.5 |
| 2024 | 29.4 | 27.2 | 1 | 7.2 | 6.5 | 20.3 | 8.4 |
| 2023 | 29 | 28.7 | 0.9 | 5.5 | 5.5 | 20.1 | 10.3 |
Source: WEC Energy Group Form 10-K for the year ended December 31, 2025, Item 1 Electric Generation and Supply Mix table (sources of electric energy supply as a percentage of sales, including the 2026 estimate): https://www.sec.gov/Archives/edgar/data/783325/000078332526000018/wec-20251231.htm.
| Period | Natural gas-fired | Coal-fired | Solar | Wind | Hydro and biomass |
|---|---|---|---|---|---|
| 2025 | 4,193 | 2,695 | 773 | 580 | 134 |
| 2024 | 4,192 | 2,698 | 548 | 580 | 140 |
Source: WEC Energy Group Form 10-K Item 2 Properties, Electric Facilities table as of December 31, 2025 (https://www.sec.gov/Archives/edgar/data/783325/000078332526000018/wec-20251231.htm) and as of December 31, 2024 (https://www.sec.gov/Archives/edgar/data/783325/000010781525000103/wec-20241231.htm). Capacity for thermal units is summer rated capacity. Wind and solar are nameplate. Totals match the Item 2 line Total electric generation facilities.