County annual report · FIPS 48421
2024 Sherman County, TX Power Outage Report
In 2024, customers in Sherman County, TX went without power for an average of 14.5 hours, a total of 9,322 customer-hours (Texas average 25.5 hours). That ranks 87th worst of 252 Texas counties and 678th of 2,990 nationally.
Compared with TX, the US and 2023
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Sherman County, 2024
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 19, 2024 03:15 | July 19, 2024 05:00 | 1h 45m | 1,196 | 2,093 |
| 2 | May 27, 2024 08:45 | May 27, 2024 10:45 | 2h | 1,154 | 2,025 |
| 3 | June 29, 2024 00:30 | June 29, 2024 04:45 | 4h 15m | 1,153 | 2,713 |
| 4 | August 13, 2024 14:45 | August 13, 2024 15:15 | 30m | 186 | 93 |
| 5 | January 8, 2024 21:00 | January 9, 2024 03:30 | 6h 30m | 142 | 472 |
| 6 | August 4, 2024 13:45 | August 4, 2024 19:30 | 5h 45m | 66 | 137 |
| 7 | July 14, 2024 19:30 | July 14, 2024 23:15 | 3h 45m | 64 | 26 |
| 8 | August 4, 2024 00:30 | August 4, 2024 09:00 | 8h 30m | 62 | 318 |
| 9 | May 17, 2024 17:00 | May 17, 2024 19:30 | 2h 30m | 58 | 80 |
| 10 | May 15, 2024 23:45 | May 16, 2024 06:00 | 6h 15m | 46 | 254 |
Outage episodes by size in 2024: 5 reached 100+ customers, 3 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 Sherman County reported on EIA Form 861 for 2024, 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 | 2024 | 2.9 hrs | 1.21 | 2.1 hrs | 1.14 |
| Tri-County Electric Coop, Inc (OK) | - | - | - | - | - |
| Rita Blanca 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 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 643 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. Sherman County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Sherman County, TX annual power outage report, 2024, 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/2024/texas/sherman-county