County annual report · FIPS 48311
2021 McMullen County, TX Power Outage Report
In 2021, customers in McMullen County, TX went without power for an average of 107.1 hours, a total of 23K customer-hours (Texas average 21.0 hours). That ranks 21st worst of 252 Texas counties and 70th 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 McMullen 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 23:15 | February 19, 2021 02:15 | 4d 3h | 788 | 15K |
| 2 | October 1, 2021 02:15 | October 1, 2021 16:00 | 13h 45m | 168 | 1,574 |
| 3 | May 18, 2021 06:00 | May 21, 2021 00:30 | 2d 18h | 143 | 2,085 |
| 4 | October 7, 2021 17:30 | October 7, 2021 20:30 | 3h | 119 | 277 |
| 5 | October 18, 2021 16:15 | October 18, 2021 18:45 | 2h 30m | 119 | 268 |
| 6 | June 1, 2021 09:30 | June 1, 2021 20:30 | 11h | 115 | 285 |
| 7 | May 11, 2021 21:30 | May 12, 2021 20:30 | 23h | 87 | 580 |
| 8 | July 2, 2021 17:00 | July 2, 2021 21:00 | 4h | 77 | 64 |
| 9 | August 6, 2021 21:30 | August 7, 2021 03:45 | 6h 15m | 71 | 427 |
| 10 | May 2, 2021 14:30 | May 2, 2021 17:00 | 2h 30m | 70 | 158 |
Outage episodes by size in 2021: 6 reached 100+ customers, 0 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 McMullen 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 |
| San Patricio Electric Coop Inc | 2021 | 3.9 hrs | 2.16 | 3.1 hrs | 1.99 |
| Nueces Electric Cooperative | 2021 | 25.4 hrs | 4.46 | 3.0 hrs | 1.23 |
| 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 ÷ 217 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. McMullen County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), McMullen 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/mcmullen-county