County annual report · FIPS 48099
2017 Coryell County, TX Power Outage Report
In 2017, customers in Coryell County, TX went without power for an average of 0.1 hours, a total of 1,724 customer-hours (Texas average 1.6 hours). That ranks 220th worst of 249 Texas counties and 2608th 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 Coryell 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 9, 2017 16:15 | December 9, 2017 17:45 | 1h 30m | 89 | 134 |
| 2 | December 18, 2017 17:45 | December 18, 2017 20:30 | 2h 45m | 85 | 221 |
| 3 | December 14, 2017 16:00 | December 14, 2017 17:45 | 1h 45m | 82 | 82 |
| 4 | December 11, 2017 22:15 | December 11, 2017 23:45 | 1h 30m | 78 | 117 |
| 5 | November 30, 2017 16:30 | November 30, 2017 21:00 | 4h 30m | 65 | 138 |
| 6 | December 26, 2017 23:45 | December 27, 2017 06:30 | 6h 45m | 44 | 297 |
| 7 | December 8, 2017 13:00 | December 9, 2017 01:00 | 12h | 39 | 165 |
| 8 | November 29, 2017 21:30 | November 29, 2017 22:30 | 1h | 24 | 24 |
| 9 | December 20, 2017 14:00 | December 20, 2017 19:45 | 5h 45m | 20 | 54 |
| 10 | December 28, 2017 16:00 | December 28, 2017 16:15 | 15m | 20 | 5 |
Outage episodes by size in 2017: 0 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 Coryell 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 |
| Heart of Texas Electric Coop | 2017 | 2.2 hrs | 2.20 | 1.9 hrs | 1.26 |
| Texas-New Mexico Power Co | - | - | - | - | - |
| Hamilton County Elec Coop Assn | - | - | - | - | - |
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 ÷ 26,485 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. Coryell County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Coryell 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/coryell-county