County annual report · FIPS 48333
2020 Mills County, TX Power Outage Report
In 2020, customers in Mills County, TX went without power for an average of 1.5 hours, a total of 5,364 customer-hours (Texas average 5.3 hours). That ranks 235th worst of 254 Texas counties and 2452nd 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 Mills 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 | December 21, 2020 20:45 | December 21, 2020 21:30 | 45m | 226 | 170 |
| 2 | October 27, 2020 13:45 | October 27, 2020 18:30 | 4h 45m | 204 | 779 |
| 3 | May 26, 2020 06:15 | May 26, 2020 19:30 | 13h 15m | 202 | 973 |
| 4 | July 14, 2020 09:15 | July 14, 2020 17:15 | 8h | 201 | 761 |
| 5 | May 27, 2020 22:15 | May 28, 2020 00:15 | 2h | 144 | 223 |
| 6 | July 11, 2020 03:15 | July 11, 2020 03:45 | 30m | 111 | 56 |
| 7 | May 25, 2020 18:30 | May 25, 2020 19:30 | 1h | 110 | 110 |
| 8 | September 2, 2020 03:45 | September 2, 2020 06:00 | 2h 15m | 62 | 62 |
| 9 | December 15, 2020 16:15 | December 15, 2020 17:15 | 1h | 62 | 62 |
| 10 | August 19, 2020 15:45 | August 19, 2020 19:45 | 4h | 51 | 154 |
Outage episodes by size in 2020: 7 reached 100+ customers, 0 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 Mills 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 |
| Comanche County Elec Coop Assn | - | - | - | - | - |
| Hamilton County Elec Coop Assn | - | - | - | - | - |
| City of Goldthwaite - (TX) | - | - | - | - | - |
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 ÷ 3,489 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. Mills County has data for 2018–2025.
Cite this report
MassOutage (massoutage.com), Mills 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/mills-county