County annual report · FIPS 48167
2018 Galveston County, TX Power Outage Report
In 2018, customers in Galveston County, TX went without power for an average of 2.8 hours, a total of 409K customer-hours (Texas average 2.4 hours). That ranks 159th worst of 253 Texas counties and 1565th 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 Galveston 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 | July 16, 2018 01:00 | July 18, 2018 23:15 | 2d 22h | 6,174 | 17K |
| 2 | October 29, 2018 09:45 | November 6, 2018 15:30 | 8d 5h | 5,922 | 31K |
| 3 | September 10, 2018 14:00 | September 11, 2018 03:30 | 13h 30m | 5,458 | 3,961 |
| 4 | July 29, 2018 07:15 | July 29, 2018 11:00 | 3h 45m | 5,234 | 17K |
| 5 | May 22, 2018 09:00 | May 22, 2018 23:30 | 14h 30m | 5,169 | 4,152 |
| 6 | July 8, 2018 12:45 | July 9, 2018 04:00 | 15h 15m | 4,973 | 20K |
| 7 | August 29, 2018 10:15 | August 30, 2018 07:45 | 21h 30m | 4,965 | 10K |
| 8 | October 24, 2018 13:15 | October 26, 2018 05:30 | 1d 16h | 4,852 | 5,155 |
| 9 | January 8, 2018 05:45 | January 11, 2018 04:15 | 2d 22h | 4,848 | 2,754 |
| 10 | July 2, 2018 13:00 | July 3, 2018 11:00 | 22h | 4,346 | 5,156 |
Outage episodes by size in 2018: 140 reached 100+ customers, 45 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 Galveston 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 |
| Texas-New Mexico Power Co | - | - | - | - | - |
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 ÷ 144,421 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. Galveston County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Galveston 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/galveston-county