County annual report · FIPS 48397
2023 Rockwall County, TX Power Outage Report
In 2023, customers in Rockwall County, TX went without power for an average of 2.6 hours, a total of 197K customer-hours (Texas average 8.1 hours). That ranks 216th worst of 252 Texas counties and 2097th 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 Rockwall 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 | June 15, 2023 23:15 | June 17, 2023 07:45 | 1d 8h | 6,893 | 16K |
| 2 | October 4, 2023 14:00 | October 6, 2023 02:45 | 1d 12h | 3,973 | 6,325 |
| 3 | September 3, 2023 20:45 | September 5, 2023 01:15 | 1d 4h | 3,875 | 15K |
| 4 | March 3, 2023 00:45 | March 5, 2023 05:45 | 2d 5h | 3,550 | 16K |
| 5 | September 29, 2023 09:30 | September 29, 2023 14:30 | 5h | 2,692 | 5,908 |
| 6 | August 22, 2023 15:15 | August 22, 2023 15:30 | 15m | 2,589 | 647 |
| 7 | July 27, 2023 09:45 | July 27, 2023 21:15 | 11h 30m | 2,496 | 4,495 |
| 8 | June 7, 2023 16:15 | June 8, 2023 06:15 | 14h | 2,325 | 1,297 |
| 9 | February 14, 2023 13:45 | February 15, 2023 05:15 | 15h 30m | 2,260 | 6,042 |
| 10 | May 25, 2023 13:30 | May 25, 2023 22:30 | 9h | 1,929 | 1,228 |
Outage episodes by size in 2023: 111 reached 100+ customers, 28 reached 1,000+ customers, 0 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 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 |
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 ÷ 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, 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/rockwall-county