County annual report · FIPS 48173
2015 Glasscock County, TX Power Outage Report
In 2015, customers in Glasscock County, TX went without power for an average of 25.4 hours, a total of 24K customer-hours (Texas average 1.9 hours). That ranks 14th worst of 238 Texas counties and 91st 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 Glasscock 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 | January 2, 2015 18:15 | January 6, 2015 23:00 | 4d 4h | 673 | 22K |
| 2 | July 7, 2015 11:15 | July 7, 2015 15:30 | 4h 15m | 233 | 139 |
| 3 | May 19, 2015 03:00 | May 20, 2015 06:30 | 1d 3h | 71 | 254 |
| 4 | February 1, 2015 21:45 | February 2, 2015 00:30 | 2h 45m | 63 | 50 |
| 5 | May 29, 2015 00:00 | May 29, 2015 06:00 | 6h | 55 | 218 |
| 6 | July 2, 2015 21:15 | July 2, 2015 22:45 | 1h 30m | 39 | 31 |
| 7 | June 15, 2015 05:00 | June 15, 2015 09:00 | 4h | 25 | 57 |
| 8 | July 7, 2015 03:15 | July 7, 2015 07:45 | 4h 30m | 24 | 32 |
| 9 | March 1, 2015 18:00 | March 2, 2015 10:15 | 16h 15m | 23 | 88 |
| 10 | May 29, 2015 16:15 | May 29, 2015 19:15 | 3h | 23 | 35 |
Outage episodes by size in 2015: 2 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 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 |
| Concho Valley Elec Coop Inc | 2015 | 13.4 hrs | 3.90 | 7.1 hrs | 3.11 |
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 ÷ 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, 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/glasscock-county