County annual report · FIPS 48167
2015 Galveston County, TX Power Outage Report
In 2015, customers in Galveston County, TX went without power for an average of 1.0 hours, a total of 147K customer-hours (Texas average 1.9 hours). That ranks 195th worst of 238 Texas counties and 1753rd of 2,484 nationally.
Compared with TX, the US
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Galveston County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 25, 2015 14:15 | October 26, 2015 10:30 | 20h 15m | 4,363 | 20K |
| 2 | August 13, 2015 09:45 | August 13, 2015 11:30 | 1h 45m | 4,289 | 6,435 |
| 3 | May 1, 2015 07:45 | May 1, 2015 16:00 | 8h 15m | 4,100 | 30K |
| 4 | August 25, 2015 19:45 | August 25, 2015 23:30 | 3h 45m | 2,799 | 3,596 |
| 5 | January 5, 2015 12:00 | January 6, 2015 23:00 | 1d 11h | 2,619 | 35K |
| 6 | January 2, 2015 01:00 | January 3, 2015 00:00 | 23h | 2,557 | 5,954 |
| 7 | January 3, 2015 00:45 | January 3, 2015 12:15 | 11h 30m | 2,556 | 4,954 |
| 8 | January 1, 2015 05:15 | January 1, 2015 16:15 | 11h | 2,549 | 5,304 |
| 9 | January 3, 2015 14:00 | January 3, 2015 20:30 | 6h 30m | 2,417 | 706 |
| 10 | January 4, 2015 00:15 | January 4, 2015 06:15 | 6h | 2,417 | 643 |
Outage episodes by size in 2015: 36 reached 100+ customers, 19 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 2015, 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. | 2015 | 5.5 hrs | 2.06 | 3.4 hrs | 1.69 |
| CenterPoint Energy | 2015 | 4.3 hrs | 1.98 | 2.2 hrs | 1.33 |
| 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 2015; 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, 2015, 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/2015/texas/galveston-county