County annual report · FIPS 48237
2021 Jack County, TX Power Outage Report
In 2021, customers in Jack County, TX went without power for an average of 17.2 hours, a total of 62K customer-hours (Texas average 21.0 hours). That ranks 153rd worst of 252 Texas counties and 494th 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 Jack 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 | September 28, 2021 21:45 | September 29, 2021 07:45 | 10h | 2,717 | 13K |
| 2 | June 12, 2021 12:30 | June 12, 2021 22:15 | 9h 45m | 984 | 5,540 |
| 3 | May 26, 2021 15:15 | May 26, 2021 16:45 | 1h 30m | 615 | 916 |
| 4 | April 19, 2021 19:00 | April 19, 2021 19:30 | 30m | 504 | 252 |
| 5 | October 11, 2021 01:00 | October 11, 2021 10:30 | 9h 30m | 476 | 1,684 |
| 6 | January 24, 2021 18:15 | January 24, 2021 23:15 | 5h | 397 | 1,739 |
| 7 | February 14, 2021 16:15 | February 19, 2021 00:15 | 4d 8h | 363 | 21K |
| 8 | March 16, 2021 14:00 | March 16, 2021 16:30 | 2h 30m | 300 | 750 |
| 9 | May 23, 2021 03:15 | May 23, 2021 04:30 | 1h 15m | 300 | 363 |
| 10 | May 25, 2021 12:15 | May 25, 2021 18:30 | 6h 15m | 290 | 915 |
Outage episodes by size in 2021: 27 reached 100+ customers, 1 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 Jack 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 |
|---|---|---|---|---|---|
| Oncor Electric Delivery Company LLC | 2017 | 3.4 hrs | 1.69 | 2.4 hrs | 1.49 |
| Tri-County Electric Coop, Inc (TX) | 2021 | 31.8 hrs | 3.38 | 5.5 hrs | 2.89 |
| Texas-New Mexico Power Co | - | - | - | - | - |
| Fort Belknap Electric Coop Inc | - | - | - | - | - |
| Wise Electric Coop Inc | - | - | - | - | - |
| J-A-C 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 ÷ 3,594 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. Jack County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Jack 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/jack-county