County annual report · FIPS 48439
2018 Tarrant County, TX Power Outage Report
In 2018, customers in Tarrant County, TX went without power for an average of 2.2 hours, a total of 2.3M customer-hours (Texas average 2.4 hours). That ranks 178th worst of 253 Texas counties and 1784th 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 Tarrant 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 | February 20, 2018 23:30 | March 3, 2018 12:30 | 10d 13h | 26,907 | 154K |
| 2 | May 1, 2018 10:30 | May 9, 2018 06:00 | 7d 19h | 18,156 | 107K |
| 3 | December 6, 2018 13:00 | December 10, 2018 05:30 | 3d 16h | 17,054 | 24K |
| 4 | June 2, 2018 12:15 | June 18, 2018 10:30 | 15d 22h | 14,912 | 126K |
| 5 | August 18, 2018 13:15 | August 25, 2018 09:45 | 6d 20h | 12,330 | 62K |
| 6 | September 1, 2018 13:30 | September 14, 2018 21:45 | 13d 8h | 7,673 | 113K |
| 7 | July 10, 2018 11:45 | July 18, 2018 23:15 | 8d 11h | 7,337 | 89K |
| 8 | May 25, 2018 12:15 | June 2, 2018 09:15 | 7d 21h | 7,311 | 44K |
| 9 | October 8, 2018 10:30 | October 23, 2018 08:30 | 14d 22h | 7,229 | 129K |
| 10 | July 21, 2018 10:15 | August 18, 2018 11:00 | 28d | 6,927 | 273K |
Outage episodes by size in 2018: 105 reached 100+ customers, 70 reached 1,000+ customers, 5 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 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 |
| Tri-County Electric Coop, Inc (TX) | 2018 | 67 min | 0.70 | 40 min | 0.56 |
| United Electric Coop Service Inc - (TX) | 2018 | 7.6 hrs | 1.36 | 82 min | 0.99 |
| Denton County Elec Coop, Inc | 2018 | 48 min | 0.50 | 40 min | 0.49 |
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 ÷ 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, 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/tarrant-county