County annual report · FIPS 48493
2021 Wilson County, TX Power Outage Report
In 2021, customers in Wilson County, TX went without power for an average of 4.4 hours, a total of 149K customer-hours (Texas average 21.0 hours). That ranks 222nd worst of 252 Texas counties and 1446th 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 Wilson 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 | December 25, 2021 00:15 | December 25, 2021 01:00 | 45m | 4,120 | 2,883 |
| 2 | February 13, 2021 22:45 | February 18, 2021 22:30 | 4d 23h | 3,044 | 42K |
| 3 | July 28, 2021 06:45 | July 28, 2021 16:00 | 9h 15m | 1,761 | 4,902 |
| 4 | February 13, 2021 14:00 | February 13, 2021 18:45 | 4h 45m | 1,590 | 3,505 |
| 5 | July 13, 2021 17:45 | July 14, 2021 00:45 | 7h | 1,554 | 9,761 |
| 6 | September 9, 2021 00:00 | September 9, 2021 15:45 | 15h 45m | 1,391 | 21K |
| 7 | April 9, 2021 21:00 | April 9, 2021 21:45 | 45m | 1,358 | 344 |
| 8 | April 19, 2021 02:15 | April 29, 2021 21:45 | 10d 19h | 1,187 | 8,186 |
| 9 | September 1, 2021 13:15 | September 1, 2021 13:45 | 30m | 1,181 | 296 |
| 10 | February 13, 2021 13:00 | February 13, 2021 13:15 | 15m | 1,019 | 255 |
Outage episodes by size in 2021: 52 reached 100+ customers, 11 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 Wilson 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 Central Company | 2021 | 31.7 hrs | 3.36 | 3.1 hrs | 1.61 |
| Guadalupe Valley Elec Coop Inc | 2021 | 2.0 hrs | 1.28 | 84 min | 1.06 |
| City of San Antonio - (TX) | 2021 | 2.9 hrs | 1.58 | 68 min | 1.01 |
| City of Floresville | 2021 | 5.4 hrs | 2.75 | 2.5 hrs | 1.48 |
| Karnes Electric Coop Inc | - | - | - | - | - |
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 ÷ 33,619 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. Wilson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Wilson 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/wilson-county