Johnson City, TN
How often Johnson City goes out
Tennessee's record with Johnson City: 0.9 outages in the most recent filing year, 1.7 hours without power in total, modestly better than the national norm. That is 56% less outage time than the Tennessee state average of 3.8 hours a year.
How long a single Johnson City outage runs
At an average of 1.9 hours 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.
What this means for buying a generator
Serving 84,883 customers here, Outages at Johnson City run below the national norm, so a generator is not urgent - still worth checking if you have medical equipment or a sump pump that cannot go without power.
The source behind this number
Johnson City filed these numbers itself, as a municipally-owned utility, under EIA Form 861 - a federal reliability report covering its entire Tennessee territory, serving 84,883 customers here, not a single street or outage. Want the Tennessee average instead of just this one utility? Tennessee's statewide record is here. The full scoring method lives in the methodology guide.