County annual report · FIPS 48007
2021 Aransas County, TX Power Outage Report
In 2021, customers in Aransas County, TX went without power for an average of 65.3 hours, a total of 782K customer-hours (Texas average 21.0 hours). That ranks 46th worst of 252 Texas counties and 124th 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 Aransas 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 | May 14, 2021 14:00 | May 14, 2021 21:30 | 7h 30m | 16,346 | 17K |
| 2 | February 14, 2021 02:00 | February 21, 2021 00:45 | 6d 22h | 12,274 | 690K |
| 3 | October 29, 2021 22:00 | October 29, 2021 23:45 | 1h 45m | 3,339 | 1,007 |
| 4 | January 7, 2021 20:00 | January 7, 2021 21:15 | 1h 15m | 2,050 | 1,862 |
| 5 | November 29, 2021 22:00 | November 30, 2021 01:00 | 3h | 1,845 | 3,274 |
| 6 | August 26, 2021 13:00 | August 26, 2021 21:15 | 8h 15m | 1,505 | 2,529 |
| 7 | August 30, 2021 16:30 | August 30, 2021 21:30 | 5h | 805 | 1,152 |
| 8 | July 3, 2021 18:30 | July 3, 2021 22:45 | 4h 15m | 804 | 3,182 |
| 9 | January 11, 2021 13:45 | January 11, 2021 18:30 | 4h 45m | 725 | 2,077 |
| 10 | November 3, 2021 21:30 | November 5, 2021 10:45 | 1d 13h | 719 | 5,371 |
Outage episodes by size in 2021: 52 reached 100+ customers, 6 reached 1,000+ customers, 2 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 Aransas 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 ÷ 11,991 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. Aransas County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Aransas 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/aransas-county