County annual report · FIPS 48409
2021 San Patricio County, TX Power Outage Report
In 2021, customers in San Patricio County, TX went without power for an average of 39.5 hours, a total of 1.4M customer-hours (Texas average 21.0 hours). That ranks 78th worst of 252 Texas counties and 220th 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 San Patricio 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 14, 2021 22:00 | February 21, 2021 03:00 | 6d 5h | 21,381 | 1.2M |
| 2 | September 28, 2021 20:15 | October 1, 2021 01:45 | 2d 5h | 3,128 | 12K |
| 3 | June 1, 2021 10:15 | June 2, 2021 00:45 | 14h 30m | 2,343 | 3,381 |
| 4 | August 27, 2021 10:30 | August 27, 2021 21:30 | 11h | 2,225 | 2,260 |
| 5 | July 8, 2021 09:00 | July 10, 2021 06:15 | 1d 21h | 2,118 | 8,820 |
| 6 | May 18, 2021 07:30 | May 21, 2021 10:00 | 3d 2h | 1,880 | 17K |
| 7 | September 20, 2021 13:30 | September 20, 2021 23:15 | 9h 45m | 1,852 | 2,523 |
| 8 | September 22, 2021 05:00 | September 22, 2021 22:00 | 17h | 1,839 | 9,649 |
| 9 | September 13, 2021 12:30 | September 14, 2021 04:45 | 16h 15m | 1,783 | 5,538 |
| 10 | May 27, 2021 15:00 | May 28, 2021 03:00 | 12h | 1,763 | 1,660 |
Outage episodes by size in 2021: 108 reached 100+ customers, 16 reached 1,000+ customers, 1 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 San Patricio 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 |
| San Patricio Electric Coop Inc | 2021 | 3.9 hrs | 2.16 | 3.1 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 94% of Texas's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 35,667 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. San Patricio County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), San Patricio 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/san-patricio-county