County annual report · FIPS 48011
2017 Armstrong County, TX Power Outage Report
In 2017, customers in Armstrong County, TX went without power for an average of 2.1 hours, a total of 955 customer-hours (Texas average 1.6 hours). That ranks 78th worst of 249 Texas counties and 1597th of 2,786 nationally.
Compared with TX, the US and 2016
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Armstrong County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 1, 2017 19:45 | August 1, 2017 21:15 | 1h 30m | 833 | 305 |
| 2 | October 7, 2017 02:30 | October 7, 2017 04:30 | 2h | 175 | 307 |
| 3 | June 3, 2017 21:15 | June 4, 2017 00:30 | 3h 15m | 75 | 59 |
| 4 | November 18, 2017 00:30 | November 18, 2017 03:00 | 2h 30m | 50 | 125 |
| 5 | July 2, 2017 16:45 | July 2, 2017 19:15 | 2h 30m | 17 | 43 |
| 6 | July 3, 2017 05:00 | July 3, 2017 06:00 | 1h | 17 | 17 |
| 7 | September 25, 2017 10:00 | September 25, 2017 11:30 | 1h 30m | 5 | 7 |
| 8 | August 18, 2017 17:30 | August 18, 2017 21:15 | 3h 45m | 3 | 8 |
| 9 | July 27, 2017 13:30 | July 27, 2017 14:45 | 1h 15m | 2 | 3 |
| 10 | August 10, 2017 11:45 | August 10, 2017 15:15 | 3h 30m | 2 | 5 |
Outage episodes by size in 2017: 2 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 2017, 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 | 2017 | 3.9 hrs | 1.25 | 1.7 hrs | 1.05 |
| 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 2017; 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, 2017, 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/2017/texas/armstrong-county