County annual report · FIPS 48397
2024 Rockwall County, TX Power Outage Report
In 2024, customers in Rockwall County, TX went without power for an average of 10.2 hours, a total of 788K customer-hours (Texas average 25.5 hours). That ranks 102nd worst of 252 Texas counties and 910th of 2,990 nationally.
Compared with TX, the US and 2023
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Rockwall County, 2024
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, 2024 11:30 | June 8, 2024 19:30 | 11d 8h | 31,961 | 665K |
| 2 | September 23, 2024 09:15 | September 23, 2024 23:00 | 13h 45m | 4,918 | 1,947 |
| 3 | June 23, 2024 18:00 | June 24, 2024 10:45 | 16h 45m | 4,026 | 4,405 |
| 4 | May 26, 2024 11:15 | May 27, 2024 20:30 | 1d 9h | 3,000 | 19K |
| 5 | October 1, 2024 02:15 | October 1, 2024 13:15 | 11h | 2,651 | 3,128 |
| 6 | December 8, 2024 01:15 | December 8, 2024 23:15 | 22h | 2,470 | 3,392 |
| 7 | September 18, 2024 11:00 | September 18, 2024 20:15 | 9h 15m | 2,321 | 1,528 |
| 8 | December 27, 2024 12:15 | December 28, 2024 17:45 | 1d 5h | 2,245 | 1,573 |
| 9 | May 5, 2024 01:45 | May 6, 2024 09:30 | 1d 7h | 2,040 | 1,352 |
| 10 | April 20, 2024 13:15 | April 21, 2024 14:30 | 1d 1h | 1,913 | 7,567 |
Outage episodes by size in 2024: 90 reached 100+ customers, 15 reached 1,000+ customers, 1 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 Rockwall County reported on EIA Form 861 for 2024, 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 |
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 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 77,029 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. Rockwall County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Rockwall County, TX annual power outage report, 2024, 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/2024/texas/rockwall-county