County annual report · FIPS 48447
2021 Throckmorton County, TX Power Outage Report
In 2021, customers in Throckmorton County, TX went without power for an average of 61.4 hours, a total of 36K customer-hours (Texas average 21.0 hours). That ranks 51st worst of 252 Texas counties and 140th 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 Throckmorton 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 | October 11, 2021 00:00 | October 11, 2021 16:45 | 16h 45m | 974 | 754 |
| 2 | February 15, 2021 09:45 | February 15, 2021 11:45 | 2h | 935 | 706 |
| 3 | February 15, 2021 13:45 | February 17, 2021 20:15 | 2d 6h | 933 | 32K |
| 4 | October 27, 2021 05:45 | October 27, 2021 06:15 | 30m | 706 | 195 |
| 5 | May 29, 2021 22:45 | May 30, 2021 00:15 | 1h 30m | 33 | 49 |
| 6 | April 29, 2021 01:45 | April 29, 2021 06:45 | 5h | 32 | 143 |
| 7 | June 14, 2021 02:15 | June 14, 2021 03:00 | 45m | 32 | 24 |
| 8 | December 9, 2021 15:30 | December 9, 2021 15:45 | 15m | 26 | 7 |
| 9 | June 17, 2021 17:45 | June 17, 2021 19:45 | 2h | 25 | 50 |
| 10 | September 7, 2021 20:00 | September 7, 2021 20:15 | 15m | 25 | 6 |
Outage episodes by size in 2021: 4 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 Throckmorton 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 North Company | 2021 | 18.9 hrs | 2.72 | 1.9 hrs | 1.24 |
| Tri-County Electric Coop, Inc (TX) | 2021 | 31.8 hrs | 3.38 | 5.5 hrs | 2.89 |
| Big Country Electric Coop, Inc | - | - | - | - | - |
| Fort Belknap 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 ÷ 582 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. Throckmorton County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Throckmorton 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/throckmorton-county