County annual report · FIPS 48431
2015 Sterling County, TX Power Outage Report
In 2015, customers in Sterling County, TX went without power for an average of 0.1 hours, a total of 165 customer-hours (Texas average 1.9 hours). That ranks 224th worst of 238 Texas counties and 2299th 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 Sterling 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 | May 26, 2015 21:15 | May 26, 2015 23:30 | 2h 15m | 43 | 66 |
| 2 | January 3, 2015 02:15 | January 3, 2015 06:30 | 4h 15m | 6 | 19 |
| 3 | May 25, 2015 14:45 | May 25, 2015 16:00 | 1h 15m | 6 | 8 |
| 4 | January 4, 2015 18:15 | January 4, 2015 21:15 | 3h | 5 | 15 |
| 5 | May 19, 2015 06:00 | May 19, 2015 14:00 | 8h | 4 | 13 |
| 6 | January 8, 2015 13:30 | January 8, 2015 15:30 | 2h | 3 | 6 |
| 7 | April 13, 2015 16:00 | April 13, 2015 18:30 | 2h 30m | 3 | 8 |
| 8 | May 9, 2015 14:30 | May 9, 2015 15:45 | 1h 15m | 3 | 4 |
| 9 | July 2, 2015 21:15 | July 2, 2015 22:00 | 45m | 3 | 2 |
| 10 | May 28, 2015 00:30 | May 28, 2015 03:45 | 3h 15m | 2 | 7 |
Outage episodes by size in 2015: 0 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 Sterling 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 |
| AEP Texas North Company | 2015 | 3.9 hrs | 1.49 | 1.8 hrs | 1.13 |
| 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 ÷ 1,197 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. Sterling County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Sterling 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/sterling-county