Southwestern Public Service Co, TX
Southwestern Public Service Co's outage record
Southwestern Public Service Co customers in Texas lost power 1.7 times last year, 7.4 hours total - well above the national norm for outage time. That is 97% more outage time than the Texas state average of 3.7 hours a year.
What a typical outage at Southwestern Public Service Co looks like
Outages here average 4.3 hours before power returns. At that length, continuous fuel supply matters more than stored capacity, which favors a standby generator over anything battery-based. More on that split in how often versus how long an outage runs.
Do Southwestern Public Service Co customers need a generator
Serving 270,149 customers here, This is not a borderline case - Southwestern Public Service Co's outage record alone is reason enough to get a backup generator before the next one hits.
Where this number comes from
These figures come from EIA Form 861, the reliability report an investor-owned utility like Southwestern Public Service Co files with federal regulators every year - serving 270,149 customers hereaveraged across the whole territory, not any one address or storm. Every other utility in Texas is covered too: see Texas's full record. Storm days are counted in - here is why.