County annual report · FIPS 48181
2019 Grayson County, TX Power Outage Report
In 2019, customers in Grayson County, TX went without power for an average of 2.9 hours, a total of 153K customer-hours (Texas average 4.9 hours). That ranks 194th worst of 254 Texas counties and 1684th of 2,945 nationally.
Compared with TX, the US and 2018
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Grayson County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 13, 2019 12:30 | August 15, 2019 01:45 | 1d 13h | 3,770 | 10K |
| 2 | January 15, 2019 22:45 | January 16, 2019 02:30 | 3h 45m | 3,072 | 4,003 |
| 3 | May 18, 2019 16:15 | May 19, 2019 07:30 | 15h 15m | 2,071 | 4,188 |
| 4 | April 18, 2019 03:30 | April 19, 2019 07:30 | 1d 4h | 2,064 | 8,963 |
| 5 | September 20, 2019 19:45 | September 20, 2019 23:45 | 4h | 2,054 | 3,293 |
| 6 | January 19, 2019 11:15 | January 20, 2019 02:00 | 14h 45m | 1,924 | 5,922 |
| 7 | September 25, 2019 14:45 | September 25, 2019 16:00 | 1h 15m | 1,828 | 917 |
| 8 | August 20, 2019 03:15 | August 20, 2019 08:45 | 5h 30m | 1,803 | 2,688 |
| 9 | June 16, 2019 07:00 | June 17, 2019 17:00 | 1d 10h | 1,792 | 10K |
| 10 | September 28, 2019 05:30 | September 28, 2019 06:30 | 1h | 1,711 | 753 |
Outage episodes by size in 2019: 89 reached 100+ customers, 19 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 Grayson County reported on EIA Form 861 for 2019, 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 | 2018 | 48 min | 0.50 | 40 min | 0.49 |
| Grayson-Collin Elec Coop, Inc | 2013 | 5.2 hrs | - | 2.1 hrs | - |
| Texas-New Mexico Power Co | - | - | - | - | - |
| Cooke County Elec Coop Assn | - | - | - | - | - |
| 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 93% of Texas's customers in 2019; 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, 2019, 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/2019/texas/grayson-county