County annual report · FIPS 48179
2021 Gray County, TX Power Outage Report
In 2021, customers in Gray County, TX went without power for an average of 3.9 hours, a total of 28K customer-hours (Texas average 21.0 hours). That ranks 230th worst of 252 Texas counties and 1565th 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 Gray 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 | February 16, 2021 13:00 | February 16, 2021 21:30 | 8h 30m | 2,270 | 7,591 |
| 2 | March 13, 2021 05:00 | March 13, 2021 07:30 | 2h 30m | 1,265 | 319 |
| 3 | August 29, 2021 06:45 | August 29, 2021 14:15 | 7h 30m | 820 | 4,304 |
| 4 | March 14, 2021 00:00 | March 14, 2021 07:45 | 7h 45m | 605 | 1,747 |
| 5 | March 17, 2021 02:15 | March 18, 2021 20:15 | 1d 18h | 524 | 4,880 |
| 6 | June 25, 2021 21:15 | June 27, 2021 00:00 | 1d 2h | 257 | 1,319 |
| 7 | June 22, 2021 16:00 | June 22, 2021 17:00 | 1h | 221 | 166 |
| 8 | January 14, 2021 10:30 | January 14, 2021 22:00 | 11h 30m | 219 | 553 |
| 9 | December 6, 2021 18:30 | December 6, 2021 19:45 | 1h 15m | 167 | 152 |
| 10 | December 4, 2021 00:15 | December 4, 2021 02:15 | 2h | 141 | 275 |
Outage episodes by size in 2021: 13 reached 100+ customers, 2 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 Gray 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 |
| Southwestern Electric Power Co | 2021 | 11.8 hrs | 2.41 | 5.1 hrs | 1.79 |
| Greenbelt 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 ÷ 7,103 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. Gray County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Gray 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/gray-county