massoutage

County annual report · FIPS 01073

2023 Jefferson County, AL Power Outage Report

In 2023, customers in Jefferson County, AL went without power for an average of 4.8 hours, a total of 1.8M customer-hours (Alabama average 6.3 hours). That ranks 43rd worst of 65 Alabama counties and 1511th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
4.8
372,757 customers
Customer-hours out
1.8M
Peak customers out
25,348
Outages ≥1,000 out
36
5 of 10,000+ · 157 total
Longest outage
31d 22h
began June 29, 2023
Rank in state
43rd/65
1511th of 2,977 US

Compared with AL, the US and 2022

Jefferson County, AL average hours without power per customer compared with state and national averages, 2023Jefferson County 4.8 hours, Alabama average 6.3 hours, US average 7.1 hours, Jefferson County, 2022 5.6 hoursJefferson CountyJefferson County4.8hAlabama averageAlabama average6.3hUS averageUS average7.1hJefferson County, 2022Jefferson County, 20…5.6h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

CSVJSON
Jefferson County, AL customer-hours without power by month, 2023Jan 77K, Feb 63K, Mar 213K, Apr 74K, May 81K, Jun 171K, Jul 179K, Aug 343K, Sep 41K, Oct 62K, Nov 58K, Dec 424K0200k400k600k77KJan63KFeb213KMar74KApr81KMay171KJun179KJul343KAug41KSep62KOct58KNov424KDec
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Customer-hours; December was the worst month.

Jefferson County year over year

CSVJSON
Jefferson County, AL: average hours without power per customer by year2015: no data; 2016: no data; 2017: 0.5h; 2018: 5.9h, coverage 79%; 2019: 3.6h, coverage 81%; 2020: 6.4h, coverage 81%; 2021: 5.3h, coverage 81%; 2022: 5.6h, coverage 81%; 2023: 4.8h; 2024: 4.5h; 2025: 8.0h024680%50%100%n/a2015n/a20160.5h20175.9h20183.6h20196.4h20205.3h20215.6h20224.8h20234.5h20248.0h2025
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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 Alabama customers tracked each year.

Biggest outages in Jefferson County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 9, 2023 20:45December 13, 2023 11:453d 15h25,348370K
2February 28, 2023 14:00March 16, 2023 04:0015d 14h16,785185K
3August 16, 2023 08:45September 9, 2023 17:1524d 8h12,71368K
4July 31, 2023 11:45August 16, 2023 08:0015d 20h12,205284K
5November 18, 2023 12:30November 25, 2023 01:156d 12h10,07130K
6June 11, 2023 13:45June 14, 2023 06:152d 16h8,26154K
7June 29, 2023 11:30July 31, 2023 09:3031d 22h5,555182K
8January 5, 2023 09:45January 14, 2023 08:308d 22h5,35934K
9May 15, 2023 11:00May 23, 2023 02:157d 15h4,75437K
10October 5, 2023 05:45October 8, 2023 16:003d 10h4,61518K

Outage episodes by size in 2023: 104 reached 100+ customers, 36 reached 1,000+ customers, 5 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 Jefferson 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
Alabama Power Co-----
City of Bessemer Utilities-----
City of Tarrant-----

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 Alabama's customers in 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 372,757 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. Jefferson County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), Jefferson County, AL 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/). https://massoutage.com/reports/2023/alabama/jefferson-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON