Sun Prairie Utilities, WI
Power reliability at Sun Prairie Utilities
Outages at Sun Prairie Utilities are uncommon. Wisconsin customers on this grid saw 0.1 interruptions in the most recent year on file, 11 minutes total - well under the national median. That is 95% less outage time than the Wisconsin state average of 3.8 hours a year.
How long a single Sun Prairie Utilities outage runs
Outages here typically run short, about 75 minutes before power is back - a battery power station or small portable generator should cover the essentials through most of them. Why outage length, not count, picks the backup: how often vs how long.
Do Sun Prairie Utilities customers need a generator
Serving 18,906 customers here, With a record this steady, Sun Prairie Utilities customers rarely have a reason to shop for a backup generator at all.
Where this number comes from
These figures come from EIA Form 861, the reliability report a municipally-owned utility like Sun Prairie Utilities files with federal regulators every year - serving 18,906 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.