County annual report · FIPS 48139
2020 Ellis County, TX Power Outage Report
In 2020, customers in Ellis County, TX went without power for an average of 3.1 hours, a total of 249K customer-hours (Texas average 5.3 hours). That ranks 192nd worst of 254 Texas counties and 1851st of 3,019 nationally.
Compared with TX, the US and 2019
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Ellis County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 16, 2020 19:15 | August 18, 2020 12:45 | 1d 17h | 4,604 | 50K |
| 2 | May 15, 2020 13:45 | May 17, 2020 09:30 | 1d 19h | 4,600 | 15K |
| 3 | July 2, 2020 23:00 | July 4, 2020 08:30 | 1d 9h | 2,247 | 9,476 |
| 4 | January 4, 2020 08:15 | January 4, 2020 16:15 | 8h | 2,200 | 2,137 |
| 5 | March 18, 2020 11:00 | March 19, 2020 00:15 | 13h 15m | 2,181 | 2,284 |
| 6 | March 30, 2020 15:15 | March 31, 2020 02:30 | 11h 15m | 1,898 | 2,860 |
| 7 | May 24, 2020 19:15 | May 25, 2020 04:15 | 9h | 1,868 | 3,598 |
| 8 | December 4, 2020 03:45 | December 4, 2020 06:15 | 2h 30m | 1,867 | 469 |
| 9 | December 27, 2020 05:15 | December 27, 2020 07:15 | 2h | 1,802 | 969 |
| 10 | June 16, 2020 05:30 | June 16, 2020 10:15 | 4h 45m | 1,498 | 1,644 |
Outage episodes by size in 2020: 124 reached 100+ customers, 18 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 2020, 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) | 2020 | 80 min | 1.06 | 80 min | 1.06 |
| HILCO Electric Cooperative, Inc. | 2020 | 2.4 hrs | 1.30 | 2.4 hrs | 1.29 |
| 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 63% of Texas's customers in 2020; 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, 2020, 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/2020/texas/ellis-county