City of Naperville, IL
How often City of Naperville goes out
This is one of the steadier grids on file: City of Naperville's Illinois customers went without power for only 20 minutes across 0.3 separate outages last year. That is 86% less outage time than the Illinois state average of 2.4 hours a year.
What a typical outage at City of Naperville looks like
At an average of 75 minutes per outage, most interruptions here end before a fuel generator would even be worth starting up. More on that split in how often versus how long an outage runs.
The generator question for City of Naperville
Most City of Naperville customers keep power almost all year. Serving 64,025 customers here, You probably do not need a generator unless you already have another reason to want one.
How City of Naperville's record was measured
City of Naperville filed these numbers itself, as a municipally-owned utility, under EIA Form 861 - a federal reliability report covering its entire Illinois territory, serving 64,025 customers here, not a single street or outage. See Illinois as a whole, across every utility that filed: Illinois's outage record. How the verdict bands are set is in the methodology.