County annual report · FIPS 48433
2021 Stonewall County, TX Power Outage Report
In 2021, customers in Stonewall County, TX went without power for an average of 8.9 hours, a total of 4,022 customer-hours (Texas average 21.0 hours). That ranks 201st worst of 252 Texas counties and 864th 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 Stonewall 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 | May 1, 2021 04:45 | May 1, 2021 09:15 | 4h 30m | 853 | 720 |
| 2 | December 7, 2021 23:45 | December 8, 2021 02:00 | 2h 15m | 723 | 917 |
| 3 | November 19, 2021 21:15 | November 19, 2021 22:15 | 1h | 721 | 721 |
| 4 | April 29, 2021 00:30 | April 29, 2021 05:00 | 4h 30m | 49 | 216 |
| 5 | September 10, 2021 12:15 | September 10, 2021 16:15 | 4h | 33 | 132 |
| 6 | August 16, 2021 19:15 | August 16, 2021 22:00 | 2h 45m | 27 | 68 |
| 7 | April 13, 2021 20:15 | April 13, 2021 21:30 | 1h 15m | 26 | 33 |
| 8 | February 13, 2021 13:15 | February 13, 2021 16:45 | 3h 30m | 17 | 40 |
| 9 | August 21, 2021 18:30 | August 21, 2021 21:45 | 3h 15m | 15 | 28 |
| 10 | August 11, 2021 13:30 | August 11, 2021 18:30 | 5h | 11 | 55 |
Outage episodes by size in 2021: 3 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 Stonewall 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 |
| 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 |
| South Plains Electric Coop Inc | - | - | - | - | - |
| Big Country 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 ÷ 453 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. Stonewall County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Stonewall 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/stonewall-county