County annual report · FIPS 48439
2020 Tarrant County, TX Power Outage Report
In 2020, customers in Tarrant County, TX went without power for an average of 2.4 hours, a total of 2.5M customer-hours (Texas average 5.3 hours). That ranks 213th worst of 254 Texas counties and 2089th of 3,019 nationally.
Compared with TX, the US and 2019
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Tarrant County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 28, 2020 07:00 | September 7, 2020 11:45 | 41d 4h | 30,311 | 692K |
| 2 | June 17, 2020 11:45 | July 19, 2020 11:15 | 31d 23h | 20,428 | 435K |
| 3 | May 11, 2020 10:30 | May 25, 2020 09:45 | 13d 23h | 14,489 | 186K |
| 4 | March 16, 2020 02:00 | April 1, 2020 04:00 | 16d 2h | 12,868 | 90K |
| 5 | November 21, 2020 10:15 | November 28, 2020 08:00 | 6d 21h | 12,586 | 96K |
| 6 | November 28, 2020 14:15 | December 5, 2020 12:45 | 6d 22h | 8,427 | 38K |
| 7 | October 24, 2020 07:15 | November 2, 2020 04:30 | 8d 21h | 7,704 | 34K |
| 8 | December 26, 2020 14:15 | December 27, 2020 12:45 | 22h 30m | 7,530 | 7,292 |
| 9 | April 26, 2020 11:15 | May 4, 2020 09:45 | 7d 22h | 7,357 | 55K |
| 10 | September 25, 2020 13:15 | October 4, 2020 09:30 | 8d 20h | 7,187 | 70K |
Outage episodes by size in 2020: 87 reached 100+ customers, 58 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 2020, 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) | 2020 | 4.8 hrs | 1.74 | 3.1 hrs | 1.52 |
| United Electric Coop Service Inc - (TX) | 2020 | 80 min | 1.06 | 80 min | 1.06 |
| Denton County Elec Coop, Inc | 2020 | 37 min | 0.62 | 32 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 63% of Texas's customers in 2020; 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, 2020, 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/2020/texas/tarrant-county