County annual report · FIPS 48043
2018 Brewster County, TX Power Outage Report
In 2018, customers in Brewster County, TX went without power for an average of 456.7 hours, a total of 101K customer-hours (Texas average 2.4 hours). That ranks 1st worst of 253 Texas counties and 10th 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 Brewster 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 | May 17, 2018 21:30 | May 18, 2018 03:15 | 5h 45m | 5,343 | 24K |
| 2 | October 18, 2018 15:30 | October 18, 2018 15:45 | 15m | 5,333 | 1,333 |
| 3 | June 4, 2018 04:00 | June 5, 2018 03:00 | 23h | 3,018 | 5,644 |
| 4 | August 13, 2018 14:00 | August 13, 2018 16:45 | 2h 45m | 1,574 | 2,897 |
| 5 | September 24, 2018 14:00 | September 24, 2018 16:00 | 2h | 1,570 | 1,701 |
| 6 | November 30, 2018 18:45 | November 30, 2018 21:00 | 2h 15m | 1,568 | 2,351 |
| 7 | December 15, 2018 16:45 | December 15, 2018 20:15 | 3h 30m | 1,560 | 1,940 |
| 8 | July 15, 2018 20:45 | July 16, 2018 04:15 | 7h 30m | 1,123 | 4,148 |
| 9 | December 1, 2018 18:00 | December 1, 2018 20:45 | 2h 45m | 1,119 | 1,330 |
| 10 | May 16, 2018 14:30 | May 17, 2018 05:15 | 14h 45m | 1,117 | 426 |
Outage episodes by size in 2018: 44 reached 100+ customers, 10 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 Brewster 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 |
|---|---|---|---|---|---|
| AEP Texas North Company | 2018 | 3.0 hrs | 1.57 | 2.3 hrs | 1.40 |
| Rio Grande Electric Coop, Inc | 2018 | 6.0 hrs | - | 3.4 hrs | - |
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 ÷ 222 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. Brewster County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Brewster 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/brewster-county