County annual report · FIPS 48085
2015 Collin County, TX Power Outage Report
In 2015, customers in Collin County, TX went without power for an average of 1.2 hours, a total of 487K customer-hours (Texas average 1.9 hours). That ranks 187th worst of 238 Texas counties and 1671st of 2,484 nationally.
Compared with TX, the US
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Collin County, 2015
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 29, 2015 11:00 | July 1, 2015 08:15 | 1d 21h | 16,266 | 46K |
| 2 | January 29, 2015 12:45 | January 29, 2015 22:45 | 10h | 13,430 | 7,841 |
| 3 | May 4, 2015 12:00 | May 5, 2015 07:30 | 19h 30m | 9,962 | 12K |
| 4 | May 23, 2015 14:15 | May 29, 2015 03:00 | 5d 12h | 9,012 | 71K |
| 5 | May 29, 2015 04:00 | June 1, 2015 10:30 | 3d 6h | 6,935 | 29K |
| 6 | June 7, 2015 18:45 | June 8, 2015 12:00 | 17h 15m | 5,322 | 13K |
| 7 | May 8, 2015 05:15 | May 11, 2015 11:15 | 3d 6h | 5,114 | 38K |
| 8 | June 4, 2015 13:30 | June 6, 2015 09:00 | 1d 19h | 4,406 | 5,809 |
| 9 | March 4, 2015 13:30 | March 8, 2015 06:00 | 3d 16h | 4,235 | 10K |
| 10 | June 26, 2015 22:45 | June 28, 2015 08:30 | 1d 9h | 4,183 | 15K |
Outage episodes by size in 2015: 113 reached 100+ customers, 44 reached 1,000+ customers, 2 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 2015, 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 | 2015 | 4.5 hrs | 1.88 | 2.4 hrs | 1.36 |
| Farmers Electric Coop, Inc - (TX) | 2015 | 3.5 hrs | 1.75 | 2.0 hrs | 1.29 |
| Denton County Elec Coop, Inc | 2015 | 35 min | 1.46 | 33 min | 1.42 |
| 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 n/a of Texas's customers in 2015; 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, 2015, 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/2015/texas/collin-county