Commonwealth Edison Co, IL
Commonwealth Edison Co's outage record
Power from Commonwealth Edison Co went out 0.7 times last year across its Illinois territory, 77 minutes in total - a little steadier than most of the country. That is 47% less outage time than the Illinois state average of 2.4 hours a year.
How long a single Commonwealth Edison Co outage runs
A single outage here averages 1.9 hours. That is squarely in battery-power-station range; a fuel generator is overkill for most of these. The frequency-versus-duration guide covers why length decides the kind of backup.
Do Commonwealth Edison Co customers need a generator
Serving 4,194,773 customers here, Outages at Commonwealth Edison Co 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.
How Commonwealth Edison Co's record was measured
Commonwealth Edison Co filed these numbers itself, as an investor-owned utility, under EIA Form 861 - a federal reliability report covering its entire Illinois territory, serving 4,194,773 customers here, not a single street or outage. Want the Illinois average instead of just this one utility? Illinois's statewide record is here. The full scoring method lives in the methodology guide.