Wisconsin Public Service Corp: power outages per year
In 2025 the average Wisconsin Public Service Corp customer was without power for 10.5 hours, more than the Wisconsin average of 3.8 h; up from 7.8 h in 2024. The utility served 469,667 customers in Wisconsin and ranks #1 of 5 large Wisconsin utilities by outage hours.
By year
| Year | Hours (with major events) | Hours (without) | Interruptions | Customers |
|---|---|---|---|---|
| 2025 | 10.5 | 1.8 | 1.4 | 469,667 |
| 2024 | 7.8 | 1.6 | 1.2 | 469,161 |
| 2023 | 2.5 | 1.2 | 0.8 | 466,253 |
| 2022 | 7.7 | 1.6 | 1.4 | 463,921 |
| 2021 | 9.3 | 1.6 | 1.5 | 459,018 |
| 2020 | 1.7 | 1.7 | 0.9 | 455,242 |
"With major events" includes storm days that utilities may exclude from their own reliability targets; it is what customers actually live through. The gap between the two columns shows how much of the year's outage time came from big storms.
Backup power for Wisconsin Public Service Corp outages
An average outage here lasted about 7.3 hours in 2025. Size backup for the longest outage you want to ride through, not the average.
Other large utilities in Wisconsin
FAQ
How many hours a year are Wisconsin Public Service Corp customers without power?
10.5 hours per customer in 2025 including major event days (1.8 h without them), as Wisconsin Public Service Corp reported to the U.S. EIA.
How long does a typical Wisconsin Public Service Corp outage last?
About 7.3 hours on average in 2025 (total outage minutes divided by the number of interruptions). Storms make single events much longer.
Source: U.S. EIA Form 861, Reliability file, 2020–2025. Data snapshot . Utilities ranked nationwide →