County annual report · FIPS 48113
2019 Dallas County, TX Power Outage Report
In 2019, customers in Dallas County, TX went without power for an average of 17.4 hours, a total of 16.5M customer-hours (Texas average 4.9 hours). That ranks 41st worst of 254 Texas counties and 272nd of 2,945 nationally.
Compared with TX, the US and 2018
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Dallas County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 28, 2019 07:45 | July 8, 2019 02:15 | 40d 18h | 313,327 | 11.3M |
| 2 | October 17, 2019 11:45 | November 4, 2019 10:30 | 17d 22h | 83,944 | 2.6M |
| 3 | March 10, 2019 12:30 | March 17, 2019 05:15 | 6d 16h | 60,606 | 376K |
| 4 | May 18, 2019 02:00 | May 28, 2019 06:00 | 10d 4h | 33,147 | 313K |
| 5 | October 8, 2019 11:45 | October 17, 2019 10:45 | 8d 23h | 21,892 | 245K |
| 6 | August 18, 2019 12:15 | September 3, 2019 09:30 | 15d 21h | 17,750 | 192K |
| 7 | April 21, 2019 12:30 | April 27, 2019 09:45 | 5d 21h | 16,186 | 163K |
| 8 | April 12, 2019 11:00 | April 21, 2019 10:00 | 8d 23h | 10,142 | 154K |
| 9 | July 8, 2019 04:15 | July 18, 2019 10:15 | 10d 6h | 9,300 | 104K |
| 10 | January 18, 2019 13:15 | January 21, 2019 09:15 | 2d 20h | 6,020 | 55K |
Outage episodes by size in 2019: 94 reached 100+ customers, 65 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 2019, 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) | 2018 | 84 min | 1.19 | 84 min | 1.19 |
| Trinity Valley Elec Coop Inc | 2018 | 2.2 hrs | 1.77 | 2.2 hrs | 1.77 |
| HILCO Electric Cooperative, Inc. | 2018 | 1.7 hrs | 0.92 | 1.6 hrs | 0.92 |
| 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 93% of Texas's customers in 2019; 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, 2019, 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/2019/texas/dallas-county