Avista Corp, ID
Avista Corp's outage record
16.2 hours without electricity across 1.9 separate outages - Avista Corp's record for Idaho puts it near the bottom of every utility on file. That is 202% more outage time than the Idaho state average of 5.4 hours a year.
How long a single Avista Corp outage runs
Outages here average 8.6 hours before power returns. At that length, continuous fuel supply matters more than stored capacity, which favors a standby generator over anything battery-based. The frequency-versus-duration guide covers why length decides the kind of backup.
The generator question for Avista Corp
Serving 148,201 customers here, With a record this bad, a backup generator at Avista Corp is close to essential - check your options before the next outage, not during it.
The source behind this number
These figures come from EIA Form 861, the reliability report an investor-owned utility like Avista Corp files with federal regulators every year - serving 148,201 customers hereaveraged across the whole territory, not any one address or storm. Every other utility in Idaho is covered too: see Idaho's full record. One big storm can move a single year a lot; major event days explains how.