County annual report · FIPS 48193
2018 Hamilton County, TX Power Outage Report
In 2018, customers in Hamilton County, TX went without power for an average of 6.2 hours, a total of 11K customer-hours (Texas average 2.4 hours). That ranks 84th worst of 253 Texas counties and 878th of 2,798 nationally.
Compared with TX, the US and 2017
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Hamilton County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 17, 2018 13:15 | May 17, 2018 13:30 | 15m | 691 | 173 |
| 2 | March 11, 2018 13:00 | March 11, 2018 17:00 | 4h | 690 | 1,901 |
| 3 | July 23, 2018 20:45 | July 24, 2018 01:00 | 4h 15m | 458 | 743 |
| 4 | March 21, 2018 17:30 | March 21, 2018 20:45 | 3h 15m | 227 | 568 |
| 5 | March 21, 2018 22:45 | March 21, 2018 23:00 | 15m | 227 | 57 |
| 6 | October 15, 2018 12:15 | October 15, 2018 17:15 | 5h | 226 | 175 |
| 7 | May 5, 2018 03:15 | May 5, 2018 14:15 | 11h | 218 | 211 |
| 8 | August 1, 2018 20:00 | August 1, 2018 21:00 | 1h | 184 | 183 |
| 9 | June 26, 2018 19:45 | June 27, 2018 14:45 | 19h | 177 | 3,215 |
| 10 | July 8, 2018 00:15 | July 8, 2018 09:30 | 9h 15m | 165 | 370 |
Outage episodes by size in 2018: 13 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 Hamilton County reported on EIA Form 861 for 2018, 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 |
|---|---|---|---|---|---|
| United Electric Coop Service Inc - (TX) | 2018 | 7.6 hrs | 1.36 | 82 min | 0.99 |
| Heart of Texas Electric Coop | 2018 | 1.9 hrs | 1.15 | 1.7 hrs | 1.03 |
| 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 90% of Texas's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,841 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. Hamilton County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Hamilton County, TX annual power outage report, 2018, 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/2018/texas/hamilton-county