County annual report · FIPS 48139
2017 Ellis County, TX Power Outage Report
In 2017, customers in Ellis County, TX went without power for an average of 0.1 hours, a total of 12K customer-hours (Texas average 1.6 hours). That ranks 189th worst of 249 Texas counties and 2525th of 2,786 nationally.
Compared with TX, the US and 2015
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Ellis County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 19, 2017 05:15 | December 19, 2017 12:30 | 7h 15m | 1,933 | 3,706 |
| 2 | December 23, 2017 02:00 | December 23, 2017 12:15 | 10h 15m | 573 | 1,117 |
| 3 | November 23, 2017 13:15 | November 23, 2017 15:30 | 2h 15m | 536 | 334 |
| 4 | December 9, 2017 17:00 | December 9, 2017 20:00 | 3h | 278 | 514 |
| 5 | November 21, 2017 15:00 | November 22, 2017 00:45 | 9h 45m | 270 | 695 |
| 6 | November 24, 2017 17:30 | November 25, 2017 02:30 | 9h | 264 | 186 |
| 7 | November 22, 2017 16:15 | November 22, 2017 23:00 | 6h 45m | 254 | 669 |
| 8 | November 21, 2017 00:00 | November 21, 2017 04:15 | 4h 15m | 198 | 65 |
| 9 | December 13, 2017 14:00 | December 14, 2017 02:00 | 12h | 189 | 1,141 |
| 10 | December 9, 2017 13:30 | December 9, 2017 16:00 | 2h 30m | 113 | 146 |
Outage episodes by size in 2017: 11 reached 100+ customers, 1 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 Ellis County reported on EIA Form 861 for 2017, 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) | 2017 | 1.7 hrs | 0.96 | 59 min | 0.74 |
| HILCO Electric Cooperative, Inc. | 2017 | 3.1 hrs | 1.31 | 1.9 hrs | 1.20 |
| 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 2017; 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, 2017, 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/2017/texas/ellis-county