County annual report · FIPS 48439
2025 Tarrant County, TX Power Outage Report
In 2025, customers in Tarrant County, TX went without power for an average of 4.1 hours, a total of 4.3M customer-hours (Texas average 4.6 hours). That ranks 202nd worst of 254 Texas counties and 1742nd of 3,000 nationally.
Compared with TX, the US and 2024
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Tarrant County, 2025
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 24, 2025 12:30 | March 11, 2025 03:15 | 14d 14h | 56,077 | 910K |
| 2 | October 18, 2025 13:15 | November 8, 2025 12:15 | 20d 23h | 35,248 | 782K |
| 3 | April 1, 2025 12:30 | June 27, 2025 11:15 | 86d 22h | 16,642 | 1.1M |
| 4 | January 27, 2025 11:45 | February 14, 2025 12:15 | 18d | 15,830 | 137K |
| 5 | June 30, 2025 11:15 | August 17, 2025 09:00 | 47d 21h | 13,866 | 426K |
| 6 | September 21, 2025 11:30 | September 28, 2025 05:15 | 6d 17h | 7,537 | 72K |
| 7 | January 18, 2025 09:30 | January 27, 2025 05:00 | 8d 19h | 6,922 | 41K |
| 8 | March 27, 2025 12:45 | April 1, 2025 11:45 | 4d 23h | 6,648 | 56K |
| 9 | November 16, 2025 08:45 | December 6, 2025 10:15 | 20d 1h | 6,283 | 162K |
| 10 | August 17, 2025 10:30 | August 23, 2025 07:45 | 5d 21h | 6,206 | 72K |
Outage episodes by size in 2025: 45 reached 100+ customers, 32 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 2025, 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) | 2024 | 2.2 hrs | 1.42 | 1.8 hrs | 1.09 |
| United Electric Coop Service Inc - (TX) | 2024 | 1.9 hrs | 1.19 | 1.9 hrs | 1.19 |
| Denton County Elec Coop, Inc | 2024 | 44 min | 0.58 | 27 min | 0.44 |
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 2025; 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, 2025, 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/2025/texas/tarrant-county