massoutage

County annual report · FIPS 48245

2024 Jefferson County, TX Power Outage Report

In 2024, customers in Jefferson County, TX went without power for an average of 26.0 hours, a total of 1.3M customer-hours (Texas average 25.5 hours). That ranks 54th worst of 252 Texas counties and 374th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
26.0
51,659 customers
Customer-hours out
1.3M
Peak customers out
22,497
Outages ≥1,000 out
28
3 of 10,000+ · 579 total
Longest outage
30d 1h
began July 31, 2024
Rank in state
54th/252
374th of 2,990 US

Compared with TX, the US and 2023

Jefferson County, TX average hours without power per customer compared with state and national averages, 2024Jefferson County 26.0 hours, Texas average 25.5 hours, US average 12.6 hours, Jefferson County, 2023 19.4 hoursJefferson CountyJefferson County26.0hTexas averageTexas average25.5hUS averageUS average12.6hJefferson County, 2023Jefferson County, 20…19.4h
Use the arrow keys to read values.
Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

CSVJSON
Jefferson County, TX customer-hours without power by month, 2024Jan 36K, Feb 20K, Mar 38K, Apr 82K, May 402K, Jun 44K, Jul 530K, Aug 24K, Sep 36K, Oct 47K, Nov 22K, Dec 62K0200k400k600k36KJan20KFeb38KMar82KApr402KMay44KJun530KJul24KAug36KSep47KOct22KNov62KDec
Use the arrow keys to read values.
Customer-hours; July was the worst month.

Jefferson County year over year

CSVJSON
Jefferson County, TX: average hours without power per customer by year2015: 7.9h; 2016: 10.3h; 2017: 47.3h; 2018: 9.1h, coverage 90%; 2019: 37.0h, coverage 93%; 2020: 196.5h, coverage 63%; 2021: 24.0h, coverage 94%; 2022: 15.1h, coverage 93%; 2023: 19.4h; 2024: 26.0h; 2025: 12.8h0501001502000%50%100%7.9h201510.3h201647.3h20179.1h201837.0h2019196.5h202024.0h202115.1h202219.4h202326.0h202412.8h2025
Use the arrow keys to read values.
Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

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

Biggest outages in Jefferson County, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 7, 2024 07:00July 24, 2024 01:3016d 18h22,497519K
2May 27, 2024 23:00June 5, 2024 00:008d 1h16,536214K
3May 2, 2024 11:15May 6, 2024 03:153d 16h14,272132K
4September 11, 2024 10:15September 28, 2024 01:0016d 14h5,16330K
5April 9, 2024 12:30April 10, 2024 05:4517h 15m4,8084,984
6October 25, 2024 09:30October 26, 2024 04:1518h 45m4,36918K
7April 10, 2024 08:30April 12, 2024 18:002d 9h4,32047K
8February 27, 2024 14:00February 27, 2024 23:009h4,2637,532
9May 15, 2024 13:00May 20, 2024 03:454d 14h3,63924K
10October 29, 2024 12:15November 1, 2024 21:303d 9h3,60912K

Outage episodes by size in 2024: 147 reached 100+ customers, 28 reached 1,000+ customers, 3 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 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Entergy Texas Inc.202428.8 hrs3.465.1 hrs2.05

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 Texas's customers in 2024; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 51,659 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 2015–2025.

Cite this report

MassOutage (massoutage.com), Jefferson County, TX annual power outage report, 2024, 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/2024/texas/jefferson-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON