County annual report · FIPS 48099
2023 Coryell County, TX Power Outage Report
In 2023, customers in Coryell County, TX went without power for an average of 3.2 hours, a total of 85K customer-hours (Texas average 8.1 hours). That ranks 207th worst of 252 Texas counties and 1888th of 2,977 nationally.
Compared with TX, the US and 2022
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Coryell County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 1, 2023 09:30 | November 1, 2023 12:45 | 3h 15m | 5,983 | 2,831 |
| 2 | March 4, 2023 12:45 | March 4, 2023 17:15 | 4h 30m | 3,099 | 1,732 |
| 3 | February 2, 2023 04:30 | February 4, 2023 04:15 | 1d 23h | 2,530 | 8,053 |
| 4 | February 8, 2023 07:30 | February 8, 2023 13:45 | 6h 15m | 1,952 | 4,432 |
| 5 | May 20, 2023 19:00 | May 21, 2023 02:00 | 7h | 1,583 | 1,229 |
| 6 | March 13, 2023 18:00 | March 13, 2023 22:45 | 4h 45m | 1,545 | 1,548 |
| 7 | May 20, 2023 03:45 | May 20, 2023 14:30 | 10h 45m | 1,330 | 2,992 |
| 8 | July 16, 2023 21:30 | July 16, 2023 22:15 | 45m | 1,232 | 309 |
| 9 | August 22, 2023 07:30 | August 22, 2023 08:00 | 30m | 1,232 | 609 |
| 10 | August 7, 2023 20:00 | August 7, 2023 23:00 | 3h | 1,230 | 1,534 |
Outage episodes by size in 2023: 51 reached 100+ customers, 14 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 2023, 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) | 2023 | 3.1 hrs | 1.49 | 86 min | 1.16 |
| Heart of Texas Electric Coop | 2023 | 11.2 hrs | 2.27 | 5.9 hrs | 1.89 |
| 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 2023; 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, 2023, 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/2023/texas/coryell-county