County annual report · FIPS 48099
2015 Coryell County, TX Power Outage Report
In 2015, customers in Coryell County, TX went without power for an average of 1.2 hours, a total of 33K customer-hours (Texas average 1.9 hours). That ranks 181st worst of 238 Texas counties and 1630th of 2,484 nationally.
Compared with TX, the US
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Coryell County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 5, 2015 06:45 | March 5, 2015 10:15 | 3h 30m | 9,390 | 2,379 |
| 2 | May 25, 2015 19:00 | May 26, 2015 01:30 | 6h 30m | 7,140 | 18K |
| 3 | June 18, 2015 22:00 | June 19, 2015 22:00 | 1d | 952 | 2,635 |
| 4 | May 8, 2015 21:00 | May 9, 2015 01:30 | 4h 30m | 717 | 1,080 |
| 5 | June 21, 2015 19:15 | June 22, 2015 01:00 | 5h 45m | 481 | 2,021 |
| 6 | February 13, 2015 14:45 | February 13, 2015 15:30 | 45m | 387 | 290 |
| 7 | April 11, 2015 13:30 | April 11, 2015 14:45 | 1h 15m | 228 | 257 |
| 8 | March 6, 2015 13:15 | March 6, 2015 17:30 | 4h 15m | 211 | 441 |
| 9 | January 12, 2015 02:00 | January 12, 2015 05:45 | 3h 45m | 206 | 265 |
| 10 | June 28, 2015 20:45 | June 29, 2015 00:30 | 3h 45m | 119 | 442 |
Outage episodes by size in 2015: 14 reached 100+ customers, 2 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 2015, 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 | 2015 | 4.5 hrs | 1.88 | 2.4 hrs | 1.36 |
| United Electric Coop Service Inc - (TX) | 2015 | 2.9 hrs | 1.21 | 1.5 hrs | 0.99 |
| Heart of Texas Electric Coop | 2015 | 3.0 hrs | 1.15 | 2.4 hrs | 0.98 |
| 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 2015; 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, 2015, 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/2015/texas/coryell-county