County annual report · FIPS 48113
2023 Dallas County, TX Power Outage Report
In 2023, customers in Dallas County, TX went without power for an average of 4.2 hours, a total of 3.9M customer-hours (Texas average 8.1 hours). That ranks 185th worst of 252 Texas counties and 1642nd 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 Dallas 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 | February 21, 2023 11:45 | March 13, 2023 09:00 | 19d 21h | 105,907 | 1.0M |
| 2 | June 11, 2023 13:45 | June 29, 2023 10:15 | 17d 20h | 24,173 | 435K |
| 3 | July 21, 2023 11:45 | September 17, 2023 19:15 | 58d 7h | 16,042 | 650K |
| 4 | October 2, 2023 12:00 | October 14, 2023 11:15 | 11d 23h | 9,776 | 138K |
| 5 | January 29, 2023 12:45 | February 7, 2023 10:15 | 8d 21h | 8,777 | 147K |
| 6 | October 23, 2023 11:15 | November 11, 2023 12:15 | 19d 1h | 7,850 | 183K |
| 7 | April 28, 2023 11:30 | May 11, 2023 12:00 | 13d | 7,496 | 127K |
| 8 | May 21, 2023 06:30 | June 11, 2023 12:15 | 21d 5h | 7,272 | 188K |
| 9 | September 17, 2023 20:15 | October 2, 2023 11:15 | 14d 15h | 6,720 | 135K |
| 10 | March 13, 2023 10:30 | March 20, 2023 06:30 | 6d 20h | 6,519 | 84K |
Outage episodes by size in 2023: 64 reached 100+ customers, 47 reached 1,000+ customers, 3 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 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 |
| Farmers Electric Coop, Inc - (TX) | 2023 | 5.2 hrs | 1.71 | 52 min | 0.69 |
| Trinity Valley Elec Coop Inc | 2023 | 9.0 hrs | 3.22 | 3.2 hrs | 2.35 |
| HILCO Electric Cooperative, Inc. | 2023 | 2.5 hrs | 1.33 | 2.3 hrs | 1.30 |
| 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 2023; 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, 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/dallas-county