County annual report · FIPS 48139
2023 Ellis County, TX Power Outage Report
In 2023, customers in Ellis County, TX went without power for an average of 7.9 hours, a total of 638K customer-hours (Texas average 8.1 hours). That ranks 127th worst of 252 Texas counties and 1039th 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 Ellis 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 | May 5, 2023 22:45 | May 9, 2023 09:45 | 3d 11h | 12,939 | 124K |
| 2 | June 21, 2023 14:15 | June 24, 2023 06:45 | 2d 16h | 10,167 | 72K |
| 3 | February 1, 2023 20:15 | February 4, 2023 12:45 | 2d 16h | 7,951 | 39K |
| 4 | September 24, 2023 23:45 | September 26, 2023 05:15 | 1d 5h | 6,151 | 51K |
| 5 | September 21, 2023 17:45 | September 23, 2023 04:15 | 1d 10h | 4,537 | 11K |
| 6 | June 12, 2023 00:30 | June 16, 2023 02:15 | 4d 1h | 4,483 | 46K |
| 7 | October 5, 2023 00:30 | October 6, 2023 04:15 | 1d 3h | 3,526 | 25K |
| 8 | February 13, 2023 20:45 | February 15, 2023 05:00 | 1d 8h | 3,136 | 14K |
| 9 | March 22, 2023 19:30 | March 24, 2023 02:15 | 1d 6h | 3,116 | 1,926 |
| 10 | September 3, 2023 18:15 | September 5, 2023 09:45 | 1d 15h | 2,900 | 17K |
Outage episodes by size in 2023: 143 reached 100+ customers, 44 reached 1,000+ customers, 2 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 Ellis 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 |
| United Electric Coop Service Inc - (TX) | 2023 | 3.1 hrs | 1.49 | 86 min | 1.16 |
| HILCO Electric Cooperative, Inc. | 2023 | 2.5 hrs | 1.33 | 2.3 hrs | 1.30 |
| Navarro County Elec Coop, Inc | - | - | - | - | - |
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 ÷ 80,952 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. Ellis County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Ellis 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/ellis-county