County annual report · FIPS 48445
2021 Terry County, TX Power Outage Report
In 2021, customers in Terry County, TX went without power for an average of 4.7 hours, a total of 20K customer-hours (Texas average 21.0 hours). That ranks 220th worst of 252 Texas counties and 1380th 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 Terry 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 6, 2021 20:00 | March 6, 2021 22:45 | 2h 45m | 2,445 | 1,985 |
| 2 | March 22, 2021 19:30 | March 23, 2021 05:45 | 10h 15m | 733 | 1,425 |
| 3 | February 16, 2021 13:15 | February 16, 2021 22:15 | 9h | 699 | 2,096 |
| 4 | September 21, 2021 18:45 | September 21, 2021 20:15 | 1h 30m | 654 | 981 |
| 5 | June 14, 2021 14:00 | June 14, 2021 22:15 | 8h 15m | 351 | 196 |
| 6 | February 15, 2021 15:15 | February 15, 2021 19:30 | 4h 15m | 316 | 146 |
| 7 | March 23, 2021 13:15 | March 24, 2021 02:45 | 13h 30m | 312 | 416 |
| 8 | July 5, 2021 10:15 | July 5, 2021 12:30 | 2h 15m | 307 | 271 |
| 9 | July 30, 2021 22:30 | July 31, 2021 00:15 | 1h 45m | 274 | 479 |
| 10 | May 3, 2021 23:00 | May 4, 2021 04:00 | 5h | 273 | 820 |
Outage episodes by size in 2021: 23 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 Terry 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 |
|---|---|---|---|---|---|
| Oncor Electric Delivery Company LLC | 2017 | 3.4 hrs | 1.69 | 2.4 hrs | 1.49 |
| Southwestern Public Service Co | 2021 | 3.2 hrs | 1.75 | 2.0 hrs | 1.07 |
| Lyntegar Electric Coop, Inc | 2021 | 6.5 hrs | - | 6.5 hrs | - |
| City of Brownfield - (TX) | - | - | - | - | - |
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 ÷ 4,311 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. Terry County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Terry 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/terry-county