City of Shelbyville, TN
City of Shelbyville's outage record
This is one of the steadier grids on file: City of Shelbyville's Tennessee customers went without power for only 18 minutes across 0.6 separate outages last year. That is 92% less outage time than the Tennessee state average of 3.8 hours a year.
How long a single City of Shelbyville outage runs
A single outage here averages 29 minutes. That is squarely in battery-power-station range; a fuel generator is overkill for most of these. Why outage length, not count, picks the backup: how often vs how long.
What this means for buying a generator
Most City of Shelbyville customers keep power almost all year. Serving 11,746 customers here, You probably do not need a generator unless you already have another reason to want one.
The source behind this number
City of Shelbyville filed these numbers itself, as a municipally-owned utility, under EIA Form 861 - a federal reliability report covering its entire Tennessee territory, serving 11,746 customers here, not a single street or outage. Every other utility in Tennessee is covered too: see Tennessee's full record. The full scoring method lives in the methodology guide.