massoutage

County annual report · FIPS 04012

2023 La Paz County, AZ Power Outage Report

In 2023, customers in La Paz County, AZ went without power for an average of 3.2 hours, a total of 27K customer-hours (Arizona average 2.1 hours). That ranks 5th worst of 14 Arizona counties and 1882nd of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
3.2
8,403 customers
Customer-hours out
27K
Peak customers out
1,705
Outages ≥1,000 out
3
0 of 10,000+ · 47 total
Longest outage
21h 30m
began August 18, 2023
Rank in state
5th/14
1882nd of 2,977 US

Compared with AZ, the US and 2022

La Paz County, AZ average hours without power per customer compared with state and national averages, 2023La Paz County 3.2 hours, Arizona average 2.1 hours, US average 7.1 hours, La Paz County, 2022 7.7 hoursLa Paz CountyLa Paz County3.2hArizona averageArizona average2.1hUS averageUS average7.1hLa Paz County, 2022La Paz County, 20227.7h
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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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La Paz County, AZ customer-hours without power by month, 2023Jan 3,692, Feb 3,205, Mar 1,540, Apr 2,878, May 3,591, Jun 32, Jul 2,958, Aug 1,150, Sep 5,717, Oct 169, Nov 2,048, Dec 14602k4k6k3,692Jan3,205Feb1,540Mar2,878Apr3,591May32Jun2,958Jul1,150Aug5,717Sep169Oct2,048Nov146Dec
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Customer-hours; September was the worst month.

La Paz County year over year

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La Paz County, AZ: average hours without power per customer by year2015: no data; 2016: no data; 2017: 5.8h; 2018: 10.6h, coverage 87%; 2019: 18.8h, coverage 86%; 2020: 6.3h, coverage 90%; 2021: 3.0h, coverage 91%; 2022: 7.7h, coverage 91%; 2023: 3.2h; 2024: 5.3h; 2025: 5.1h051015200%50%100%n/a2015n/a20165.8h201710.6h201818.8h20196.3h20203.0h20217.7h20223.2h20235.3h20245.1h2025
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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 La Paz County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 15, 2023 07:15September 15, 2023 10:153h1,7054,904
2November 3, 2023 15:30November 3, 2023 20:455h 15m1,6201,688
3May 4, 2023 07:15May 4, 2023 15:158h1,197764
4May 19, 2023 13:15May 19, 2023 22:008h 45m8412,207
5February 2, 2023 14:00February 2, 2023 16:002h7131,426
6April 15, 2023 06:00April 15, 2023 10:154h 15m6642,822
7December 12, 2023 11:45December 12, 2023 12:0015m407102
8September 27, 2023 20:30September 27, 2023 23:002h 30m347773
9July 12, 2023 00:45July 12, 2023 10:309h 45m3452,075
10March 23, 2023 16:15March 23, 2023 21:305h 15m3021,516

Outage episodes by size in 2023: 21 reached 100+ customers, 3 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 La Paz 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
Southern California Edison Co20231.9 hrs1.041.6 hrs0.94
Arizona Public Service Co20231.6 hrs0.8882 min0.81
WAPA-- Western Area Power Administration-----
Colorado River Indian Irr Proj-----
McMullen Valley Water C&D Dist-----

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 ÷ 8,403 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. La Paz County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), La Paz 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/la-paz-county

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