County annual report · FIPS 48439
2017 Tarrant County, TX Power Outage Report
In 2017, customers in Tarrant County, TX went without power for an average of 0.2 hours, a total of 172K customer-hours (Texas average 1.6 hours). That ranks 183rd worst of 249 Texas counties and 2509th of 2,786 nationally.
Compared with TX, the US and 2015
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Tarrant County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 30, 2017 13:00 | December 1, 2017 08:15 | 19h 15m | 4,640 | 11K |
| 2 | December 3, 2017 05:15 | December 6, 2017 08:00 | 3d 2h | 4,140 | 15K |
| 3 | December 21, 2017 09:00 | December 26, 2017 08:15 | 4d 23h | 3,970 | 31K |
| 4 | December 14, 2017 13:45 | December 18, 2017 06:00 | 3d 16h | 3,743 | 24K |
| 5 | November 21, 2017 00:00 | November 22, 2017 11:15 | 1d 11h | 3,611 | 9,104 |
| 6 | December 7, 2017 13:15 | December 14, 2017 07:45 | 6d 18h | 3,288 | 18K |
| 7 | December 18, 2017 12:45 | December 19, 2017 22:45 | 1d 10h | 2,670 | 11K |
| 8 | November 27, 2017 12:30 | November 29, 2017 09:30 | 1d 21h | 2,310 | 7,694 |
| 9 | December 28, 2017 10:45 | December 30, 2017 13:15 | 2d 2h | 2,299 | 13K |
| 10 | November 23, 2017 11:00 | November 25, 2017 07:15 | 1d 20h | 2,091 | 9,362 |
Outage episodes by size in 2017: 19 reached 100+ customers, 14 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 Tarrant County reported on EIA Form 861 for 2017, 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 |
| Tri-County Electric Coop, Inc (TX) | 2017 | 70 min | 0.74 | 70 min | 0.74 |
| United Electric Coop Service Inc - (TX) | 2017 | 1.7 hrs | 0.96 | 59 min | 0.74 |
| Denton County Elec Coop, Inc | 2017 | 40 min | 0.57 | 34 min | 0.56 |
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 2017; 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, 2017, 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/2017/texas/tarrant-county