County annual report · FIPS 48245
2023 Jefferson County, TX Power Outage Report
In 2023, customers in Jefferson County, TX went without power for an average of 19.4 hours, a total of 1.0M customer-hours (Texas average 8.1 hours). That ranks 70th worst of 252 Texas counties and 424th of 2,977 nationally.
Compared with TX, the US and 2022
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Jefferson County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 1, 2023 00:00 | June 11, 2023 12:15 | 161d 12h | 12,541 | 522K |
| 2 | June 11, 2023 13:45 | June 22, 2023 01:15 | 10d 11h | 10,482 | 128K |
| 3 | September 8, 2023 12:00 | September 10, 2023 02:45 | 1d 14h | 5,972 | 37K |
| 4 | August 27, 2023 12:45 | August 31, 2023 03:45 | 3d 15h | 3,027 | 36K |
| 5 | June 27, 2023 12:30 | July 14, 2023 17:15 | 17d 4h | 2,654 | 44K |
| 6 | June 22, 2023 17:15 | June 25, 2023 07:15 | 2d 14h | 2,386 | 13K |
| 7 | July 16, 2023 20:00 | July 19, 2023 01:45 | 2d 5h | 2,212 | 15K |
| 8 | October 30, 2023 06:15 | October 31, 2023 02:45 | 20h 30m | 2,187 | 3,702 |
| 9 | July 22, 2023 15:30 | July 26, 2023 01:45 | 3d 10h | 1,901 | 17K |
| 10 | August 9, 2023 12:30 | August 10, 2023 05:00 | 16h 30m | 1,786 | 1,858 |
Outage episodes by size in 2023: 93 reached 100+ customers, 21 reached 1,000+ customers, 2 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.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Entergy Texas Inc. | 2023 | 9.1 hrs | 2.38 | 5.2 hrs | 2.00 |
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 2023; 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, 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/texas/jefferson-county