County annual report · FIPS 48043
2021 Brewster County, TX Power Outage Report
In 2021, customers in Brewster County, TX went without power for an average of 888.9 hours, a total of 197K customer-hours (Texas average 21.0 hours). That ranks 2nd worst of 252 Texas counties and 5th of 2,974 nationally.
Compared with TX, the US and 2020
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Brewster County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 15, 2021 09:15 | February 18, 2021 22:45 | 3d 13h | 2,748 | 177K |
| 2 | March 13, 2021 05:30 | March 13, 2021 21:15 | 15h 45m | 1,918 | 6,314 |
| 3 | August 20, 2021 00:15 | August 20, 2021 03:45 | 3h 30m | 464 | 707 |
| 4 | March 13, 2021 22:30 | March 14, 2021 00:45 | 2h 15m | 326 | 579 |
| 5 | August 20, 2021 19:30 | August 21, 2021 02:45 | 7h 15m | 275 | 141 |
| 6 | August 10, 2021 20:30 | August 11, 2021 02:15 | 5h 45m | 212 | 360 |
| 7 | September 16, 2021 21:00 | September 17, 2021 03:00 | 6h | 208 | 484 |
| 8 | May 24, 2021 03:30 | May 24, 2021 22:45 | 19h 15m | 195 | 560 |
| 9 | June 16, 2021 02:00 | June 16, 2021 02:45 | 45m | 165 | 124 |
| 10 | April 3, 2021 05:30 | April 3, 2021 06:45 | 1h 15m | 144 | 179 |
Outage episodes by size in 2021: 13 reached 100+ customers, 2 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 2021, 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 | 2021 | 18.9 hrs | 2.72 | 1.9 hrs | 1.24 |
| Rio Grande Electric Coop, Inc | 2021 | 6.3 hrs | - | 5.3 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 94% of Texas's customers in 2021; 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, 2021, 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/2021/texas/brewster-county