County annual report · FIPS 48497
2021 Wise County, TX Power Outage Report
In 2021, customers in Wise County, TX went without power for an average of 22.8 hours, a total of 631K customer-hours (Texas average 21.0 hours). That ranks 124th worst of 252 Texas counties and 373rd 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 Wise 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 13:15 | February 21, 2021 13:15 | 7d | 10,805 | 495K |
| 2 | April 5, 2021 23:45 | April 6, 2021 16:30 | 16h 45m | 2,686 | 786 |
| 3 | October 10, 2021 13:45 | October 11, 2021 17:30 | 1d 3h | 2,593 | 7,105 |
| 4 | August 6, 2021 14:45 | August 6, 2021 17:30 | 2h 45m | 2,573 | 1,296 |
| 5 | October 27, 2021 07:15 | October 28, 2021 02:15 | 19h | 2,462 | 12K |
| 6 | May 6, 2021 23:45 | May 7, 2021 13:15 | 13h 30m | 2,306 | 5,422 |
| 7 | July 27, 2021 20:00 | July 28, 2021 05:15 | 9h 15m | 1,997 | 4,320 |
| 8 | October 28, 2021 14:30 | October 30, 2021 02:15 | 1d 11h | 1,812 | 4,447 |
| 9 | March 22, 2021 17:15 | March 22, 2021 20:45 | 3h 30m | 1,627 | 2,121 |
| 10 | December 15, 2021 15:00 | December 16, 2021 06:15 | 15h 15m | 1,324 | 4,014 |
Outage episodes by size in 2021: 86 reached 100+ customers, 17 reached 1,000+ customers, 1 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 Wise 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 |
| Denton County Elec Coop, Inc | 2021 | 17.2 hrs | - | 41 min | 0.63 |
| Cooke County Elec Coop Assn | 2021 | 1.8 hrs | 1.06 | 1.8 hrs | - |
| Wise Electric Coop Inc | - | - | - | - | - |
| City of Bridgeport - (TX) | - | - | - | - | - |
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 ÷ 27,602 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. Wise County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Wise 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/wise-county