County annual report · FIPS 48167
2020 Galveston County, TX Power Outage Report
In 2020, customers in Galveston County, TX went without power for an average of 4.2 hours, a total of 605K customer-hours (Texas average 5.3 hours). That ranks 171st worst of 254 Texas counties and 1566th of 3,019 nationally.
Compared with TX, the US and 2019
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Galveston County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 26, 2020 11:00 | June 2, 2020 00:00 | 6d 13h | 9,739 | 71K |
| 2 | April 24, 2020 17:45 | May 24, 2020 20:30 | 30d 2h | 7,789 | 121K |
| 3 | October 9, 2020 06:30 | October 12, 2020 05:30 | 2d 23h | 6,638 | 36K |
| 4 | July 24, 2020 13:30 | July 28, 2020 02:15 | 3d 12h | 5,473 | 38K |
| 5 | August 26, 2020 08:15 | August 30, 2020 12:30 | 4d 4h | 5,328 | 38K |
| 6 | July 20, 2020 03:15 | July 23, 2020 06:15 | 3d 3h | 5,320 | 27K |
| 7 | January 18, 2020 14:45 | January 19, 2020 05:45 | 15h | 5,119 | 9,064 |
| 8 | January 26, 2020 01:45 | January 26, 2020 22:30 | 20h 45m | 5,077 | 1,386 |
| 9 | March 16, 2020 19:00 | March 18, 2020 04:00 | 1d 9h | 3,605 | 2,256 |
| 10 | May 24, 2020 21:30 | May 26, 2020 05:45 | 1d 8h | 3,456 | 9,816 |
Outage episodes by size in 2020: 136 reached 100+ customers, 48 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 2020, 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. | 2020 | 42.3 hrs | 3.27 | 4.6 hrs | 1.74 |
| CenterPoint Energy | 2020 | 3.8 hrs | 1.78 | 2.3 hrs | 1.32 |
| 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 63% of Texas's customers in 2020; 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, 2020, 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/2020/texas/galveston-county