County annual report · FIPS 48425
2020 Somervell County, TX Power Outage Report
In 2020, customers in Somervell County, TX went without power for an average of 5.3 hours, a total of 29K customer-hours (Texas average 5.3 hours). That ranks 156th worst of 254 Texas counties and 1341st 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 Somervell 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 2, 2020 14:45 | August 2, 2020 17:15 | 2h 30m | 1,215 | 1,591 |
| 2 | September 1, 2020 22:30 | September 3, 2020 05:00 | 1d 6h | 1,134 | 5,925 |
| 3 | August 17, 2020 01:30 | August 17, 2020 07:00 | 5h 30m | 1,037 | 801 |
| 4 | August 13, 2020 15:00 | August 13, 2020 16:45 | 1h 45m | 1,033 | 776 |
| 5 | September 25, 2020 10:15 | September 25, 2020 12:45 | 2h 30m | 1,028 | 2,556 |
| 6 | November 14, 2020 15:30 | November 14, 2020 18:15 | 2h 45m | 1,022 | 522 |
| 7 | November 18, 2020 15:00 | November 18, 2020 17:45 | 2h 45m | 1,014 | 1,379 |
| 8 | November 13, 2020 14:45 | November 13, 2020 19:00 | 4h 15m | 976 | 863 |
| 9 | September 7, 2020 14:45 | September 7, 2020 18:30 | 3h 45m | 644 | 1,800 |
| 10 | January 11, 2020 00:30 | January 11, 2020 06:45 | 6h 15m | 617 | 1,675 |
Outage episodes by size in 2020: 25 reached 100+ customers, 7 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 Somervell 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 |
| Texas-New Mexico Power Co | - | - | - | - | - |
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 ÷ 5,351 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. Somervell County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Somervell 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/somervell-county