County annual report · FIPS 48173
2018 Glasscock County, TX Power Outage Report
In 2018, customers in Glasscock County, TX went without power for an average of 19.7 hours, a total of 18K customer-hours (Texas average 2.4 hours). That ranks 20th worst of 253 Texas counties and 282nd 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 Glasscock 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 3, 2018 00:30 | May 4, 2018 09:15 | 1d 8h | 605 | 2,840 |
| 2 | December 26, 2018 15:30 | December 28, 2018 04:30 | 1d 13h | 445 | 1,189 |
| 3 | April 21, 2018 16:45 | April 21, 2018 23:45 | 7h | 434 | 565 |
| 4 | September 24, 2018 18:30 | September 24, 2018 21:15 | 2h 45m | 432 | 225 |
| 5 | July 2, 2018 13:00 | July 3, 2018 00:30 | 11h 30m | 252 | 1,274 |
| 6 | November 5, 2018 20:30 | November 5, 2018 20:45 | 15m | 244 | 61 |
| 7 | November 16, 2018 15:30 | November 17, 2018 03:15 | 11h 45m | 191 | 94 |
| 8 | December 13, 2018 17:30 | December 14, 2018 09:15 | 15h 45m | 167 | 572 |
| 9 | June 4, 2018 06:30 | June 5, 2018 11:00 | 1d 4h | 158 | 510 |
| 10 | October 8, 2018 21:45 | October 13, 2018 03:00 | 4d 5h | 150 | 2,167 |
Outage episodes by size in 2018: 15 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 Glasscock 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 |
|---|---|---|---|---|---|
| Oncor Electric Delivery Company LLC | 2017 | 3.4 hrs | 1.69 | 2.4 hrs | 1.49 |
| Concho Valley Elec Coop Inc | 2018 | 8.3 hrs | 4.63 | 7.4 hrs | 4.55 |
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 ÷ 931 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. Glasscock County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Glasscock 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/glasscock-county