County annual report · FIPS 48425
2017 Somervell County, TX Power Outage Report
In 2017, customers in Somervell County, TX went without power for an average of 0.1 hours, a total of 366 customer-hours (Texas average 1.6 hours). That ranks 216th worst of 249 Texas counties and 2599th of 2,786 nationally.
Compared with TX, the US
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Somervell 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 22, 2017 16:00 | December 22, 2017 18:30 | 2h 30m | 224 | 331 |
| 2 | December 21, 2017 19:00 | December 21, 2017 19:30 | 30m | 22 | 7 |
| 3 | December 20, 2017 02:30 | December 20, 2017 03:45 | 1h 15m | 9 | 11 |
| 4 | December 20, 2017 23:30 | December 20, 2017 23:45 | 15m | 3 | 1 |
| 5 | November 28, 2017 22:45 | November 29, 2017 03:45 | 5h | 2 | 5 |
| 6 | November 23, 2017 01:30 | November 23, 2017 04:00 | 2h 30m | 1 | 3 |
| 7 | November 23, 2017 16:00 | November 23, 2017 17:15 | 1h 15m | 1 | 1 |
| 8 | November 25, 2017 19:15 | November 25, 2017 20:45 | 1h 30m | 1 | 2 |
| 9 | November 25, 2017 21:30 | November 25, 2017 22:15 | 45m | 1 | 1 |
| 10 | December 10, 2017 20:00 | December 10, 2017 20:45 | 45m | 1 | 1 |
Outage episodes by size in 2017: 1 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 Somervell 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 |
| 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 n/a of Texas's customers in 2017; 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, 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/somervell-county