Northern States Power Co, WI
Northern States Power Co's outage record
1.2 separate outages last year, 5.1 hours without power in total - that is Northern States Power Co's record for Wisconsin, running ahead of the national median. That is 34% more outage time than the Wisconsin state average of 3.8 hours a year.
How long a single Northern States Power Co outage runs
Outages here average 4.5 hours before power returns. At that length, continuous fuel supply matters more than stored capacity, which favors a standby generator over anything battery-based. The frequency-versus-duration guide covers why length decides the kind of backup.
What this means for buying a generator
Serving 263,161 customers here, Given how often Northern States Power Co goes out, you should consider a backup generator rather than treat it as optional.
Where this number comes from
These figures come from EIA Form 861, the reliability report an investor-owned utility like Northern States Power Co files with federal regulators every year - serving 263,161 customers hereaveraged across the whole territory, not any one address or storm. Want the Wisconsin average instead of just this one utility? Wisconsin's statewide record is here. Storm days are counted in - here is why.