County annual report · FIPS 48011
2019 Armstrong County, TX Power Outage Report
In 2019, customers in Armstrong County, TX went without power for an average of 25.2 hours, a total of 11K customer-hours (Texas average 4.9 hours). That ranks 24th worst of 254 Texas counties and 155th of 2,945 nationally.
Compared with TX, the US and 2018
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Armstrong County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 28, 2019 03:30 | November 28, 2019 06:15 | 2h 45m | 863 | 1,331 |
| 2 | March 13, 2019 16:45 | March 16, 2019 01:30 | 2d 8h | 475 | 5,931 |
| 3 | April 17, 2019 23:30 | April 18, 2019 04:15 | 4h 45m | 444 | 1,006 |
| 4 | January 9, 2019 00:00 | January 9, 2019 02:00 | 2h | 373 | 560 |
| 5 | June 16, 2019 01:30 | June 16, 2019 11:30 | 10h | 174 | 1,619 |
| 6 | December 23, 2019 22:45 | December 23, 2019 23:45 | 1h | 170 | 170 |
| 7 | May 25, 2019 21:00 | May 25, 2019 22:45 | 1h 45m | 103 | 107 |
| 8 | October 3, 2019 09:30 | October 3, 2019 14:00 | 4h 30m | 45 | 139 |
| 9 | June 30, 2019 15:15 | June 30, 2019 17:30 | 2h 15m | 25 | 54 |
| 10 | June 16, 2019 14:45 | June 16, 2019 18:30 | 3h 45m | 24 | 90 |
Outage episodes by size in 2019: 7 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 Armstrong County reported on EIA Form 861 for 2019, 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 | 2018 | 2.0 hrs | 1.08 | 1.9 hrs | 1.06 |
| 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 93% of Texas's customers in 2019; 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, 2019, 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/2019/texas/armstrong-county