County annual report · FIPS 48439
2015 Tarrant County, TX Power Outage Report
In 2015, customers in Tarrant County, TX went without power for an average of 2.3 hours, a total of 2.4M customer-hours (Texas average 1.9 hours). That ranks 145th worst of 238 Texas counties and 1124th 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 Tarrant 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 | April 16, 2015 11:15 | April 21, 2015 18:15 | 5d 7h | 67,373 | 678K |
| 2 | April 21, 2015 19:00 | April 29, 2015 11:00 | 7d 16h | 48,410 | 455K |
| 3 | May 8, 2015 05:15 | May 23, 2015 10:45 | 15d 5h | 20,139 | 226K |
| 4 | May 23, 2015 12:00 | June 6, 2015 11:45 | 13d 23h | 18,215 | 357K |
| 5 | June 16, 2015 10:45 | June 25, 2015 11:30 | 9d | 9,235 | 123K |
| 6 | May 5, 2015 12:00 | May 7, 2015 22:30 | 2d 10h | 7,881 | 20K |
| 7 | January 21, 2015 14:45 | January 26, 2015 17:30 | 5d 2h | 6,663 | 19K |
| 8 | January 16, 2015 13:00 | January 19, 2015 12:45 | 2d 23h | 5,972 | 13K |
| 9 | February 14, 2015 07:15 | February 14, 2015 08:15 | 1h | 5,716 | 2,351 |
| 10 | June 15, 2015 11:15 | June 16, 2015 07:45 | 20h 30m | 5,639 | 11K |
Outage episodes by size in 2015: 75 reached 100+ customers, 44 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 Tarrant 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 |
| Tri-County Electric Coop, Inc (TX) | 2015 | 64 min | 0.67 | 64 min | 0.67 |
| United Electric Coop Service Inc - (TX) | 2015 | 2.9 hrs | 1.21 | 1.5 hrs | 0.99 |
| Denton County Elec Coop, Inc | 2015 | 35 min | 1.46 | 33 min | 1.42 |
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 ÷ 1,040,761 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. Tarrant County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Tarrant 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/tarrant-county