County annual report · FIPS 48211
2021 Hemphill County, TX Power Outage Report
In 2021, customers in Hemphill County, TX went without power for an average of 3.0 hours, a total of 3,549 customer-hours (Texas average 21.0 hours). That ranks 235th worst of 252 Texas counties and 1845th 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 Hemphill 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 | March 14, 2021 02:00 | March 14, 2021 11:00 | 9h | 1,475 | 2,296 |
| 2 | March 17, 2021 11:15 | March 18, 2021 18:30 | 1d 7h | 137 | 1,006 |
| 3 | May 6, 2021 17:30 | May 6, 2021 18:15 | 45m | 66 | 50 |
| 4 | August 3, 2021 23:15 | August 4, 2021 00:45 | 1h 30m | 29 | 37 |
| 5 | September 3, 2021 22:00 | September 4, 2021 03:45 | 5h 45m | 8 | 32 |
| 6 | January 18, 2021 19:00 | January 18, 2021 21:00 | 2h | 6 | 9 |
| 7 | February 10, 2021 20:45 | February 10, 2021 22:15 | 1h 30m | 6 | 8 |
| 8 | July 26, 2021 00:15 | July 26, 2021 02:00 | 1h 45m | 6 | 9 |
| 9 | January 14, 2021 10:15 | January 14, 2021 15:15 | 5h | 3 | 9 |
| 10 | June 21, 2021 13:00 | June 21, 2021 15:30 | 2h 30m | 3 | 7 |
Outage episodes by size in 2021: 2 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 Hemphill 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 |
|---|---|---|---|---|---|
| Southwestern Public Service Co | 2021 | 3.2 hrs | 1.75 | 2.0 hrs | 1.07 |
| Greenbelt Electric Coop, Inc | - | - | - | - | - |
| North Plains 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 ÷ 1,189 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. Hemphill County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Hemphill 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/hemphill-county