US PowerGrade

Power outages in Arizona, by utility

Across 11 Arizona utilities that reported to the federal government, the median customer went without power for 1.5 hours in 2025 — that is 2.0× better than the national median. Arizona ranks #38 of 41 states for outage time, worst first.

Median utility
1.5 hrs
typical customer
Worst utility
4.4 hrs
Gila River Indian Utility Authority (GRICUA)
Best utility
0.5 hrs
Electrical Dist No3 Pinal County
Utilities reporting
11
of 752 nationwide

Every reporting Arizona utility, worst outage time first

#UtilityOutage time/yrOutages/yrvs US median
1Gila River Indian Utility Authority (GRICUA)Cooperative4.4 hrs264 min6.31.5× worse
2Mohave Electric Cooperative, Inc.Cooperative3.3 hrs197 min—1.1× worse
3Electrical Dist No2 Pinal CountyPolitical Subdivision2.4 hrs141 min1.61.3× better
4Dixie Escalante R E A, IncCooperative1.7 hrs99 min1.31.8× better
5Sulphur Springs Valley E C IncCooperative1.5 hrs92 min0.81.9× better
6Trico Electric Cooperative IncCooperative1.5 hrs90 min0.72.0× better
7UNS Electric, IncInvestor Owned1.4 hrs81 min0.92.2× better
8Arizona Public Service CoInvestor Owned1.2 hrs73 min0.82.4× better
9Salt River ProjectPolitical Subdivision1.1 hrs66 min1.02.7× better
10Tucson Electric Power CoInvestor Owned0.7 hrs42 min0.64.3× better
11Electrical Dist No3 Pinal CountyPolitical Subdivision0.5 hrs30 min0.45.9× better

Outage time is SAIDI: the average minutes a customer went without power across the year, storms and major events included. Outages/yr is SAIFI. The US median across all reporting utilities is 3 hours (178 minutes).

What these numbers do and do not say

SAIDI counts the minutes an average customer spent without power over the year, including storms and other major events. We rank on the figure that includes them, because excluding storms would describe a year nobody actually lived through.

Utilities report these numbers themselves, and smaller co-ops and municipal systems often serve rural territory where a single line fault affects a large share of customers. A high number is not automatically mismanagement — but it is still the power you did not have.

Utilities that filed no reliability data are left out entirely rather than counted as zero.

Other states