massoutage

2020 Arizona Power Outage Report

In 2020, the average Arizona customer went without power for about 1.3 hours, the 49th worst of 51 states (US average 8.0 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.

Avg hrs / customer
1.3
vs prior year
▲ 3%
vs 2019
Customer-hours out
4.1M
Peak customers out
74,546
across the state at once
EAGLE-I coverage
90%
of AZ customers
Counties reporting
14

Arizona year over year

Arizona: average hours without power per customer by year2015: 0.4h; 2016: 0.7h; 2017: 1.1h; 2018: 1.9h, coverage 87%; 2019: 1.3h, coverage 86%; 2020: 1.3h, coverage 90%; 2021: 1.9h, coverage 91%; 2022: 2.0h, coverage 91%; 2023: 2.0h; 2024: 1.6h; 2025: 1.6h01230%50%100%0.4h20150.7h20161.1h20171.9h20181.3h20191.3h20201.9h20212.0h20222.0h20231.6h20241.6h2025
Use the arrow keys to read values.
Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Month by month, 2020

Customer-hours without power across Arizona; August was the worst.

CSVJSON
Arizona customer-hours without power by month, 2020Jan 208K, Feb 291K, Mar 419K, Apr 159K, May 231K, Jun 383K, Jul 553K, Aug 853K, Sep 292K, Oct 268K, Nov 271K, Dec 221K0250k500k750k1M208KJan291KFeb419KMar159KApr231KMay383KJun553KJul853KAug292KSep268KOct271KNov221KDec
Use the arrow keys to read values.

All 14 Arizona counties, 2020

Ranked by average hours without power per customer. Each county links to its annual report.

CSVJSON
#CountyHrs / customerCustomer-hoursCustomersPeak outEvents
1Santa Cruz County9.913K1,3401,34083
2Gila County7.6223K29,4893,985188
3La Paz County6.353K8,4031,22361
4Pinal County2.7245K92,0984,693351
5Navajo County2.2186K84,38813,126674
6Yavapai County1.5371K246,40810,260482
7Coconino County1.4198K138,09071,189270
8Maricopa County1.32.3M1,742,49349,571397
9Yuma County1.0105K109,1004,067268
10Pima County0.8395K492,74421,950304
11Cochise County0.436K80,2272,55291
12Mohave County0.341K149,9285,30666
13Apache County0.37,60629,5491,177308
14Graham County0.21,4127,828707

Biggest Arizona outages of 2020

Up to 25 county outage episodes with the most customers out at once.

CSVJSON
#CountyStarted (UTC)Ended (UTC)DurationPeak outCustomer-hours
1Coconino County, AZNovember 8, 2020 15:30November 8, 2020 17:151h 45m71,18919K
2Maricopa County, AZAugust 20, 2020 23:30August 23, 2020 00:002d49,571227K
3Pima County, AZJune 18, 2020 01:00August 13, 2020 20:4556d 19h21,950203K
4Pima County, AZAugust 21, 2020 02:00August 21, 2020 20:0018h18,67732K
5Maricopa County, AZDecember 10, 2020 04:15December 11, 2020 10:301d 6h15,12543K
6Maricopa County, AZAugust 11, 2020 14:00August 20, 2020 22:309d 8h13,411115K
7Navajo County, AZSeptember 29, 2020 16:15September 30, 2020 05:0012h 45m13,12666K
8Maricopa County, AZJune 20, 2020 12:30June 20, 2020 17:154h 45m11,2192,852
9Pima County, AZAugust 18, 2020 18:15August 18, 2020 19:451h 30m10,5273,150
10Yavapai County, AZMarch 19, 2020 04:00March 22, 2020 01:452d 21h10,26095K
11Maricopa County, AZMarch 12, 2020 01:30March 13, 2020 21:301d 20h9,91956K
12Pima County, AZAugust 27, 2020 04:45August 27, 2020 23:0018h 15m9,05417K
13Maricopa County, AZMay 4, 2020 03:45May 7, 2020 10:003d 6h8,67844K
14Maricopa County, AZAugust 8, 2020 21:45August 11, 2020 00:452d 3h8,37252K
15Maricopa County, AZAugust 27, 2020 14:00August 31, 2020 22:154d 8h8,34463K
16Maricopa County, AZApril 25, 2020 10:30April 27, 2020 21:302d 11h7,98130K
17Maricopa County, AZMay 17, 2020 12:45May 18, 2020 09:4521h7,35214K
18Pima County, AZAugust 13, 2020 22:00August 14, 2020 19:0021h7,25711K
19Maricopa County, AZDecember 4, 2020 11:30December 5, 2020 04:4517h 15m6,31915K
20Pima County, AZDecember 2, 2020 21:15December 2, 2020 22:0045m5,6484,236
21Yavapai County, AZAugust 21, 2020 23:30August 22, 2020 00:1545m5,6042,973
22Mohave County, AZJuly 30, 2020 18:45July 30, 2020 19:3045m5,3063,980
23Maricopa County, AZJuly 25, 2020 01:15July 26, 2020 01:451d5,26516K
24Yavapai County, AZJuly 11, 2020 21:30July 12, 2020 02:154h 45m5,0948,004
25Coconino County, AZJuly 11, 2020 19:45July 12, 2020 20:151d5,06212K
EAGLE-I tracked about 90% of Arizona's electricity customers in 2020; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.
Arizona by year:2025202420232022202120192018201720162015
Other states in 2020:LAMEOKIAALMSNJNC

Part of the 2020 US Power Outage Report.

Data from DOE EAGLE-I, every source we read.