County annual report · FIPS 48181
2025 Grayson County, TX Power Outage Report
In 2025, customers in Grayson County, TX went without power for an average of 14.9 hours, a total of 784K customer-hours (Texas average 4.6 hours). That ranks 74th worst of 254 Texas counties and 507th of 3,000 nationally.
Compared with TX, the US and 2024
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Grayson County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 8, 2025 03:15 | June 12, 2025 05:30 | 4d 2h | 19,362 | 221K |
| 2 | September 5, 2025 13:00 | September 7, 2025 06:15 | 1d 17h | 18,332 | 88K |
| 3 | September 21, 2025 21:45 | September 25, 2025 00:00 | 3d 2h | 11,130 | 47K |
| 4 | May 18, 2025 00:15 | May 22, 2025 10:00 | 4d 9h | 10,525 | 118K |
| 5 | March 4, 2025 11:15 | March 6, 2025 06:00 | 1d 18h | 5,354 | 51K |
| 6 | July 27, 2025 15:15 | August 2, 2025 06:30 | 5d 15h | 4,725 | 39K |
| 7 | October 25, 2025 00:15 | October 26, 2025 04:00 | 1d 3h | 4,284 | 7,465 |
| 8 | May 26, 2025 05:45 | May 28, 2025 03:15 | 1d 21h | 3,700 | 29K |
| 9 | November 24, 2025 04:45 | November 25, 2025 03:30 | 22h 45m | 3,606 | 4,606 |
| 10 | February 19, 2025 06:45 | February 20, 2025 00:00 | 17h 15m | 2,505 | 5,729 |
Outage episodes by size in 2025: 155 reached 100+ customers, 24 reached 1,000+ customers, 4 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 Grayson County reported on EIA Form 861 for 2025, 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 |
| Denton County Elec Coop, Inc | 2024 | 44 min | 0.58 | 27 min | 0.44 |
| Cooke County Elec Coop Assn | 2024 | 4.8 hrs | 1.81 | 3.0 hrs | 1.55 |
| Grayson-Collin Elec Coop, Inc | 2013 | 5.2 hrs | - | 2.1 hrs | - |
| Texas-New Mexico Power Co | - | - | - | - | - |
| Fannin County Electric Coop | - | - | - | - | - |
| City of Whitesboro - (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 n/a of Texas's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 52,508 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. Grayson County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Grayson County, TX annual power outage report, 2025, 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/2025/texas/grayson-county