massoutage

County annual report · FIPS 04003

2023 Cochise County, AZ Power Outage Report

In 2023, customers in Cochise County, AZ went without power for an average of 0.3 hours, a total of 27K customer-hours (Arizona average 2.1 hours). That ranks 14th worst of 14 Arizona counties and 2852nd of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
0.3
80,227 customers
Customer-hours out
27K
Peak customers out
4,771
Outages ≥1,000 out
6
0 of 10,000+ · 93 total
Longest outage
11h
began June 10, 2023
Rank in state
14th/14
2852nd of 2,977 US

Compared with AZ, the US and 2022

Cochise County, AZ average hours without power per customer compared with state and national averages, 2023Cochise County 0.3 hours, Arizona average 2.1 hours, US average 7.1 hours, Cochise County, 2022 1.2 hoursCochise CountyCochise County0.3hArizona averageArizona average2.1hUS averageUS average7.1hCochise County, 2022Cochise County, 20221.2h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

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Cochise County, AZ customer-hours without power by month, 2023Jan 2,941, Feb 445, Mar 1,592, Apr 229, May 1,088, Jun 8,439, Jul 7,139, Aug 2,221, Sep 2,627, Oct 150, Nov 70, Dec 21602.5k5k7.5k10k2,941Jan445Feb1,592Mar229Apr1,088May8,439Jun7,139Jul2,221Aug2,627Sep150Oct70Nov216Dec
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Customer-hours; June was the worst month.

Cochise County year over year

CSVJSON
Cochise County, AZ: average hours without power per customer by year2015: no data; 2016: no data; 2017: 0.4h; 2018: 0.5h, coverage 87%; 2019: 0.2h, coverage 86%; 2020: 0.4h, coverage 90%; 2021: 0.5h, coverage 91%; 2022: 1.2h, coverage 91%; 2023: 0.3h; 2024: 2.8h; 2025: 0.6h01230%50%100%n/a2015n/a20160.4h20170.5h20180.2h20190.4h20200.5h20211.2h20220.3h20232.8h20240.6h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Arizona customers tracked each year.

Biggest outages in Cochise County, 2023

The 10 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 17, 2023 17:45March 17, 2023 18:0015m4,7711,193
2July 14, 2023 04:00July 14, 2023 08:004h2,8452,846
3January 1, 2023 20:30January 1, 2023 22:001h 30m1,5262,267
4August 8, 2023 04:45August 8, 2023 05:1530m1,497749
5June 14, 2023 15:15June 14, 2023 21:156h1,1266,756
6July 11, 2023 22:30July 12, 2023 00:452h 15m1,0691,300
7September 13, 2023 05:15September 13, 2023 07:152h8601,720
8July 27, 2023 23:15July 28, 2023 02:002h 45m621574
9August 18, 2023 02:15August 18, 2023 07:305h 15m494659
10July 7, 2023 22:30July 8, 2023 02:153h 45m488773

Outage episodes by size in 2023: 28 reached 100+ customers, 6 reached 1,000+ customers, 0 reached 10,000+ customers.

Utility reliability filed with the EIA

SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Cochise County reported on EIA Form 861 for 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Arizona Public Service Co20231.6 hrs0.8882 min0.81
Sulphur Springs Valley E C Inc20232.3 hrs1.131.5 hrs0.81
Tucson Electric Power Co20232.8 hrs0.9862 min0.72
WAPA-- Western Area Power Administration-----
Columbus Electric Coop, Inc-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Arizona's customers in 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 80,227 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
  • An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
  • Years loaded: 2015–2025. Cochise County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), Cochise County, AZ annual power outage report, 2023, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2023/arizona/cochise-county

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