County annual report · FIPS 48397
2025 Rockwall County, TX Power Outage Report
In 2025, customers in Rockwall County, TX went without power for an average of 2.4 hours, a total of 183K customer-hours (Texas average 4.6 hours). That ranks 230th worst of 254 Texas counties and 2280th 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 Rockwall 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 | June 9, 2025 03:45 | June 10, 2025 08:15 | 1d 4h | 5,220 | 13K |
| 2 | June 4, 2025 04:30 | June 4, 2025 22:30 | 18h | 4,075 | 7,976 |
| 3 | June 7, 2025 12:15 | June 7, 2025 13:30 | 1h 15m | 3,424 | 943 |
| 4 | May 14, 2025 14:00 | May 16, 2025 09:15 | 1d 19h | 2,670 | 3,842 |
| 5 | October 24, 2025 09:30 | October 24, 2025 16:45 | 7h 15m | 2,118 | 4,990 |
| 6 | April 9, 2025 15:15 | April 11, 2025 01:45 | 1d 10h | 1,997 | 24K |
| 7 | March 4, 2025 07:45 | March 7, 2025 01:45 | 2d 18h | 1,989 | 19K |
| 8 | June 13, 2025 12:30 | June 13, 2025 20:30 | 8h | 1,974 | 524 |
| 9 | May 20, 2025 06:45 | May 20, 2025 08:45 | 2h | 1,796 | 2,685 |
| 10 | January 31, 2025 19:15 | February 1, 2025 00:15 | 5h | 1,597 | 1,843 |
Outage episodes by size in 2025: 93 reached 100+ customers, 22 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 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 |
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 ÷ 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, 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/rockwall-county