County annual report · FIPS 48507
2018 Zavala County, TX Power Outage Report
In 2018, customers in Zavala County, TX went without power for an average of 0.4 hours, a total of 30K customer-hours (Texas average 2.4 hours). That ranks 240th worst of 253 Texas counties and 2526th 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 Zavala 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 | January 11, 2018 18:30 | January 12, 2018 02:45 | 8h 15m | 1,083 | 977 |
| 2 | December 13, 2018 16:30 | December 15, 2018 23:15 | 2d 6h | 790 | 8,754 |
| 3 | March 28, 2018 02:30 | March 29, 2018 02:15 | 23h 45m | 291 | 1,454 |
| 4 | April 29, 2018 22:15 | April 30, 2018 02:00 | 3h 45m | 241 | 903 |
| 5 | April 17, 2018 13:30 | April 17, 2018 14:30 | 1h | 240 | 180 |
| 6 | April 28, 2018 15:00 | April 28, 2018 17:15 | 2h 15m | 240 | 540 |
| 7 | May 23, 2018 00:45 | May 23, 2018 09:00 | 8h 15m | 233 | 507 |
| 8 | November 21, 2018 14:00 | November 21, 2018 14:45 | 45m | 233 | 175 |
| 9 | October 20, 2018 17:00 | October 20, 2018 18:45 | 1h 45m | 232 | 406 |
| 10 | August 11, 2018 02:00 | August 11, 2018 12:15 | 10h 15m | 230 | 884 |
Outage episodes by size in 2018: 23 reached 100+ customers, 1 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 Zavala 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 Central Company | 2018 | 3.3 hrs | 1.81 | 2.8 hrs | 1.68 |
| Rio Grande Electric Coop, Inc | 2018 | 6.0 hrs | - | 3.4 hrs | - |
| Medina Electric Coop, Inc | 2018 | 5.1 hrs | 2.16 | 4.5 hrs | 1.99 |
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 ÷ 67,532 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. Zavala County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Zavala 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/zavala-county