County annual report · FIPS 48439
2023 Tarrant County, TX Power Outage Report
In 2023, customers in Tarrant County, TX went without power for an average of 4.5 hours, a total of 4.6M customer-hours (Texas average 8.1 hours). That ranks 181st worst of 252 Texas counties and 1570th of 2,977 nationally.
Compared with TX, the US and 2022
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Tarrant County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 2, 2023 12:15 | March 19, 2023 08:30 | 16d 20h | 107,175 | 1.1M |
| 2 | July 10, 2023 02:15 | September 17, 2023 19:15 | 69d 17h | 101,641 | 1.7M |
| 3 | October 3, 2023 09:30 | October 10, 2023 10:30 | 7d 1h | 28,627 | 298K |
| 4 | May 1, 2023 11:30 | May 22, 2023 02:00 | 20d 14h | 12,226 | 199K |
| 5 | June 11, 2023 13:45 | July 4, 2023 17:00 | 23d 3h | 9,030 | 206K |
| 6 | February 21, 2023 13:00 | February 28, 2023 08:15 | 6d 19h | 8,819 | 47K |
| 7 | December 16, 2023 06:45 | December 27, 2023 10:00 | 11d 3h | 8,475 | 66K |
| 8 | January 29, 2023 16:45 | February 13, 2023 03:30 | 14d 10h | 6,845 | 167K |
| 9 | September 24, 2023 11:45 | October 1, 2023 06:15 | 6d 18h | 6,436 | 63K |
| 10 | May 29, 2023 08:45 | June 11, 2023 12:15 | 13d 3h | 5,694 | 87K |
Outage episodes by size in 2023: 66 reached 100+ customers, 50 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 2023, 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) | 2023 | 3.3 hrs | 1.72 | 2.4 hrs | 1.46 |
| United Electric Coop Service Inc - (TX) | 2023 | 3.1 hrs | 1.49 | 86 min | 1.16 |
| Denton County Elec Coop, Inc | 2023 | 50 min | 0.68 | 39 min | 0.57 |
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 2023; 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, 2023, 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/2023/texas/tarrant-county