County annual report · FIPS 48429
2021 Stephens County, TX Power Outage Report
In 2021, customers in Stephens County, TX went without power for an average of 48.3 hours, a total of 231K customer-hours (Texas average 21.0 hours). That ranks 68th worst of 252 Texas counties and 188th 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 Stephens 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 15, 2021 01:45 | February 20, 2021 01:15 | 4d 23h | 6,385 | 194K |
| 2 | August 8, 2021 20:15 | August 8, 2021 20:45 | 30m | 1,849 | 924 |
| 3 | April 15, 2021 18:45 | April 16, 2021 06:45 | 12h | 1,447 | 3,837 |
| 4 | September 15, 2021 13:00 | September 15, 2021 18:30 | 5h 30m | 1,242 | 328 |
| 5 | December 15, 2021 18:45 | December 16, 2021 00:45 | 6h | 1,082 | 793 |
| 6 | September 28, 2021 18:45 | September 30, 2021 16:45 | 1d 22h | 1,060 | 6,049 |
| 7 | May 18, 2021 02:45 | May 18, 2021 19:30 | 16h 45m | 1,026 | 1,307 |
| 8 | February 22, 2021 21:00 | February 23, 2021 00:00 | 3h | 946 | 1,401 |
| 9 | January 10, 2021 14:45 | January 11, 2021 22:15 | 1d 7h | 531 | 2,851 |
| 10 | May 22, 2021 15:00 | May 22, 2021 22:45 | 7h 45m | 385 | 2,581 |
Outage episodes by size in 2021: 28 reached 100+ customers, 7 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 Stephens 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 |
| AEP Texas North Company | 2021 | 18.9 hrs | 2.72 | 1.9 hrs | 1.24 |
| United Electric Coop Service Inc - (TX) | 2021 | 13.5 hrs | - | 3.1 hrs | 2.07 |
| Texas-New Mexico Power Co | - | - | - | - | - |
| Comanche County Elec Coop Assn | - | - | - | - | - |
| 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 ÷ 4,777 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. Stephens County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Stephens 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/stephens-county