County annual report · FIPS 48291
2018 Liberty County, TX Power Outage Report
In 2018, customers in Liberty County, TX went without power for an average of 5.6 hours, a total of 249K customer-hours (Texas average 2.4 hours). That ranks 94th worst of 253 Texas counties and 959th of 2,798 nationally.
Compared with TX, the US and 2017
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Liberty County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 4, 2018 07:30 | August 5, 2018 04:00 | 20h 30m | 4,353 | 10K |
| 2 | January 4, 2018 02:00 | January 4, 2018 23:45 | 21h 45m | 4,310 | 31K |
| 3 | January 18, 2018 11:15 | January 18, 2018 20:00 | 8h 45m | 3,415 | 7,777 |
| 4 | July 5, 2018 22:45 | July 8, 2018 01:00 | 2d 2h | 2,829 | 5,089 |
| 5 | September 24, 2018 13:30 | September 24, 2018 21:00 | 7h 30m | 2,267 | 3,409 |
| 6 | August 8, 2018 11:15 | August 8, 2018 20:15 | 9h | 2,203 | 6,035 |
| 7 | May 2, 2018 21:15 | May 3, 2018 02:45 | 5h 30m | 2,122 | 11K |
| 8 | June 6, 2018 16:45 | June 7, 2018 02:45 | 10h | 2,062 | 2,098 |
| 9 | February 21, 2018 10:30 | February 23, 2018 01:30 | 1d 15h | 1,982 | 10K |
| 10 | January 17, 2018 09:00 | January 18, 2018 08:00 | 23h | 1,965 | 2,490 |
Outage episodes by size in 2018: 116 reached 100+ customers, 22 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 Liberty County reported on EIA Form 861 for 2018, 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. | 2018 | 4.3 hrs | 1.77 | 3.7 hrs | 1.67 |
| CenterPoint Energy | 2018 | 3.0 hrs | 1.62 | 2.3 hrs | 1.37 |
| Sam Houston Electric Coop Inc | 2018 | 7.6 hrs | - | 5.2 hrs | - |
| City of Liberty - (TX) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 90% of Texas's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 44,189 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. Liberty County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Liberty County, TX annual power outage report, 2018, 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/2018/texas/liberty-county