County annual report · FIPS 48167
2023 Galveston County, TX Power Outage Report
In 2023, customers in Galveston County, TX went without power for an average of 11.9 hours, a total of 1.7M customer-hours (Texas average 8.1 hours). That ranks 101st worst of 252 Texas counties and 719th 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 Galveston 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 | June 3, 2023 12:30 | June 11, 2023 12:15 | 7d 23h | 30,412 | 364K |
| 2 | June 21, 2023 07:30 | June 26, 2023 08:45 | 5d 1h | 28,418 | 433K |
| 3 | January 24, 2023 11:45 | January 29, 2023 09:00 | 4d 21h | 8,938 | 126K |
| 4 | September 8, 2023 07:45 | September 10, 2023 05:15 | 1d 21h | 6,368 | 37K |
| 5 | July 15, 2023 10:30 | July 21, 2023 08:00 | 5d 21h | 6,092 | 64K |
| 6 | April 12, 2023 13:00 | April 13, 2023 05:15 | 16h 15m | 5,969 | 16K |
| 7 | August 23, 2023 07:45 | August 25, 2023 23:30 | 2d 15h | 5,921 | 17K |
| 8 | January 10, 2023 13:00 | January 14, 2023 10:15 | 3d 21h | 4,403 | 8,455 |
| 9 | July 5, 2023 11:45 | July 8, 2023 05:00 | 2d 17h | 4,348 | 9,339 |
| 10 | March 16, 2023 12:30 | March 20, 2023 03:15 | 3d 14h | 3,587 | 22K |
Outage episodes by size in 2023: 198 reached 100+ customers, 53 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 Galveston 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 |
| CenterPoint Energy | 2023 | 5.9 hrs | 2.14 | 2.4 hrs | 1.58 |
| 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 n/a of Texas's customers in 2023; 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, 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/galveston-county