County annual report · FIPS 48011
2025 Armstrong County, TX Power Outage Report
In 2025, customers in Armstrong County, TX went without power for an average of 44.6 hours, a total of 20K customer-hours (Texas average 4.6 hours). That ranks 16th worst of 254 Texas counties and 102nd of 3,000 nationally.
Compared with TX, the US and 2024
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Armstrong County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 18, 2025 02:45 | July 18, 2025 04:30 | 1h 45m | 1,126 | 1,709 |
| 2 | August 7, 2025 20:15 | August 8, 2025 02:45 | 6h 30m | 920 | 2,940 |
| 3 | July 12, 2025 06:00 | July 12, 2025 16:15 | 10h 15m | 917 | 7,331 |
| 4 | July 13, 2025 20:45 | July 14, 2025 00:45 | 4h | 917 | 2,981 |
| 5 | July 28, 2025 22:00 | July 28, 2025 23:00 | 1h | 917 | 917 |
| 6 | June 14, 2025 22:45 | June 15, 2025 01:45 | 3h | 916 | 2,520 |
| 7 | March 14, 2025 15:15 | March 17, 2025 01:30 | 2d 10h | 199 | 722 |
| 8 | December 4, 2025 15:45 | December 4, 2025 16:45 | 1h | 125 | 95 |
| 9 | July 2, 2025 14:00 | July 2, 2025 19:15 | 5h 15m | 119 | 420 |
| 10 | September 13, 2025 00:00 | September 13, 2025 03:30 | 3h 30m | 69 | 242 |
Outage episodes by size in 2025: 9 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 Armstrong County reported on EIA Form 861 for 2025, 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 |
|---|---|---|---|---|---|
| Southwestern Public Service Co | 2024 | 2.9 hrs | 1.21 | 2.1 hrs | 1.14 |
| Greenbelt Electric Coop, Inc | - | - | - | - | - |
| Swisher 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 n/a of Texas's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 452 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. Armstrong County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Armstrong County, TX annual power outage report, 2025, 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/2025/texas/armstrong-county