County annual report · FIPS 48113
2025 Dallas County, TX Power Outage Report
In 2025, customers in Dallas County, TX went without power for an average of 4.7 hours, a total of 4.4M customer-hours (Texas average 4.6 hours). That ranks 190th worst of 254 Texas counties and 1588th 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 Dallas 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 | March 2, 2025 09:00 | March 20, 2025 20:30 | 18d 11h | 107,071 | 1.6M |
| 2 | May 25, 2025 11:15 | June 24, 2025 10:45 | 29d 23h | 25,466 | 554K |
| 3 | January 8, 2025 12:30 | January 26, 2025 07:15 | 17d 18h | 17,053 | 92K |
| 4 | March 21, 2025 12:15 | March 25, 2025 10:00 | 3d 21h | 15,293 | 17K |
| 5 | September 5, 2025 11:30 | September 11, 2025 09:45 | 5d 22h | 14,683 | 113K |
| 6 | July 28, 2025 12:15 | September 2, 2025 05:00 | 35d 16h | 13,492 | 376K |
| 7 | March 25, 2025 10:45 | May 25, 2025 10:15 | 60d 23h | 12,916 | 539K |
| 8 | July 4, 2025 13:30 | July 28, 2025 10:00 | 23d 20h | 12,685 | 196K |
| 9 | October 28, 2025 11:00 | October 31, 2025 11:15 | 3d | 9,295 | 86K |
| 10 | November 19, 2025 12:45 | December 7, 2025 11:30 | 17d 22h | 6,625 | 114K |
Outage episodes by size in 2025: 42 reached 100+ customers, 33 reached 1,000+ customers, 8 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 Dallas 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 |
| Farmers Electric Coop, Inc - (TX) | 2024 | 2.2 hrs | 1.35 | 65 min | 0.96 |
| Trinity Valley Elec Coop Inc | 2024 | 17.4 hrs | 3.91 | 4.5 hrs | 2.46 |
| HILCO Electric Cooperative, Inc. | 2024 | 2.1 hrs | 1.35 | 2.0 hrs | 1.32 |
| Texas-New Mexico Power Co | - | - | - | - | - |
| City of Garland - (TX) | - | - | - | - | - |
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 ÷ 948,355 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. Dallas County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Dallas 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/dallas-county