County annual report · FIPS 48085
2018 Collin County, TX Power Outage Report
In 2018, customers in Collin County, TX went without power for an average of 2.1 hours, a total of 882K customer-hours (Texas average 2.4 hours). That ranks 187th worst of 253 Texas counties and 1822nd of 2,798 nationally.
Compared with TX, the US and 2017
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Collin County, 2018
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 18, 2018 16:15 | August 20, 2018 05:00 | 1d 12h | 7,245 | 28K |
| 2 | August 9, 2018 06:45 | August 11, 2018 10:30 | 2d 3h | 7,150 | 37K |
| 3 | September 21, 2018 07:30 | September 25, 2018 11:00 | 4d 3h | 5,810 | 53K |
| 4 | July 15, 2018 20:00 | July 18, 2018 10:30 | 2d 14h | 5,802 | 15K |
| 5 | February 20, 2018 11:00 | February 20, 2018 21:45 | 10h 45m | 5,226 | 14K |
| 6 | February 4, 2018 12:45 | February 5, 2018 03:45 | 15h | 4,737 | 5,877 |
| 7 | October 7, 2018 21:15 | October 9, 2018 06:00 | 1d 8h | 4,477 | 9,204 |
| 8 | December 13, 2018 13:15 | December 15, 2018 00:00 | 1d 10h | 4,292 | 18K |
| 9 | October 13, 2018 13:00 | October 19, 2018 08:00 | 5d 19h | 4,274 | 31K |
| 10 | September 25, 2018 11:45 | September 27, 2018 08:00 | 1d 20h | 4,172 | 24K |
Outage episodes by size in 2018: 220 reached 100+ customers, 83 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 Collin County reported on EIA Form 861 for 2018, 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 |
| Farmers Electric Coop, Inc - (TX) | 2018 | 84 min | 1.19 | 84 min | 1.19 |
| 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 | - | - | - | - | - |
| Fannin County Electric Coop | - | - | - | - | - |
| City of Farmersville - (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 90% of Texas's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 417,242 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. Collin County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Collin County, TX annual power outage report, 2018, 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/2018/texas/collin-county