County annual report · FIPS 48163
2021 Frio County, TX Power Outage Report
In 2021, customers in Frio County, TX went without power for an average of 45.9 hours, a total of 328K customer-hours (Texas average 21.0 hours). That ranks 71st worst of 252 Texas counties and 197th 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 Frio 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 22:30 | February 19, 2021 22:15 | 4d 23h | 5,892 | 271K |
| 2 | February 11, 2021 01:15 | February 11, 2021 02:15 | 1h | 2,197 | 1,099 |
| 3 | May 18, 2021 03:00 | May 20, 2021 22:45 | 2d 19h | 1,987 | 16K |
| 4 | September 19, 2021 07:45 | September 19, 2021 14:30 | 6h 45m | 1,258 | 4,026 |
| 5 | July 22, 2021 15:45 | July 23, 2021 18:45 | 1d 3h | 1,174 | 1,250 |
| 6 | May 10, 2021 19:15 | May 10, 2021 22:45 | 3h 30m | 929 | 392 |
| 7 | April 23, 2021 23:30 | April 26, 2021 18:15 | 2d 18h | 855 | 3,588 |
| 8 | May 26, 2021 11:30 | May 26, 2021 12:00 | 30m | 842 | 318 |
| 9 | May 4, 2021 18:30 | May 5, 2021 17:45 | 23h 15m | 831 | 2,649 |
| 10 | July 26, 2021 13:30 | July 26, 2021 13:45 | 15m | 568 | 142 |
Outage episodes by size in 2021: 35 reached 100+ customers, 5 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 Frio 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 |
| Tullahoma Board-Public Utils | 2021 | 6.0 hrs | 3.56 | 27 min | 2.19 |
| 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 ÷ 7,146 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. Frio County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Frio 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/frio-county