County annual report · FIPS 48431
2018 Sterling County, TX Power Outage Report
In 2018, customers in Sterling County, TX went without power for an average of 1.9 hours, a total of 2,218 customer-hours (Texas average 2.4 hours). That ranks 193rd worst of 253 Texas counties and 1929th 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 Sterling 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 | April 13, 2018 20:30 | April 13, 2018 22:00 | 1h 30m | 725 | 692 |
| 2 | June 18, 2018 22:45 | June 19, 2018 01:45 | 3h | 102 | 231 |
| 3 | September 10, 2018 17:00 | September 10, 2018 21:30 | 4h 30m | 55 | 96 |
| 4 | October 13, 2018 10:45 | October 13, 2018 13:15 | 2h 30m | 51 | 128 |
| 5 | June 30, 2018 13:45 | June 30, 2018 17:45 | 4h | 49 | 139 |
| 6 | November 21, 2018 15:45 | November 21, 2018 17:00 | 1h 15m | 26 | 33 |
| 7 | August 9, 2018 09:00 | August 9, 2018 11:00 | 2h | 22 | 44 |
| 8 | May 3, 2018 04:15 | May 3, 2018 05:30 | 1h 15m | 18 | 23 |
| 9 | September 19, 2018 22:30 | September 20, 2018 02:00 | 3h 30m | 9 | 31 |
| 10 | August 9, 2018 22:15 | August 10, 2018 05:45 | 7h 30m | 8 | 36 |
Outage episodes by size in 2018: 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 Sterling 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 |
| AEP Texas North Company | 2018 | 3.0 hrs | 1.57 | 2.3 hrs | 1.40 |
| 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 ÷ 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, 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/sterling-county