County annual report · FIPS 48131
2021 Duval County, TX Power Outage Report
In 2021, customers in Duval County, TX went without power for an average of 103.7 hours, a total of 481K customer-hours (Texas average 21.0 hours). That ranks 23rd worst of 252 Texas counties and 73rd 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 Duval 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 20:45 | February 21, 2021 20:15 | 6d 23h | 6,017 | 318K |
| 2 | October 7, 2021 14:30 | October 7, 2021 23:45 | 9h 15m | 1,860 | 6,378 |
| 3 | May 18, 2021 05:45 | May 22, 2021 03:45 | 3d 22h | 1,544 | 37K |
| 4 | March 26, 2021 02:45 | March 27, 2021 08:45 | 1d 6h | 1,366 | 3,284 |
| 5 | November 18, 2021 13:15 | November 19, 2021 01:30 | 12h 15m | 1,234 | 1,895 |
| 6 | November 24, 2021 14:45 | November 24, 2021 19:30 | 4h 45m | 1,175 | 2,068 |
| 7 | January 11, 2021 12:00 | January 11, 2021 23:30 | 11h 30m | 1,065 | 8,070 |
| 8 | August 2, 2021 16:00 | August 6, 2021 06:15 | 3d 14h | 850 | 6,714 |
| 9 | May 11, 2021 22:15 | May 14, 2021 05:00 | 2d 6h | 841 | 8,370 |
| 10 | December 7, 2021 05:15 | December 7, 2021 11:45 | 6h 30m | 838 | 4,563 |
Outage episodes by size in 2021: 63 reached 100+ customers, 7 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 Duval 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 |
| Medina Electric Coop, Inc | 2021 | 38.0 hrs | 10.07 | 3.0 hrs | 2.55 |
| Nueces Electric Cooperative | 2021 | 25.4 hrs | 4.46 | 3.0 hrs | 1.23 |
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 ÷ 4,633 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. Duval County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Duval 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/duval-county