County annual report · FIPS 48431
2025 Sterling County, TX Power Outage Report
In 2025, customers in Sterling County, TX went without power for an average of 28.7 hours, a total of 34K customer-hours (Texas average 4.6 hours). That ranks 30th worst of 254 Texas counties and 200th of 3,000 nationally.
Compared with TX, the US and 2024
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Sterling County, 2025
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 17, 2025 16:15 | May 20, 2025 16:30 | 33d | 924 | 4,117 |
| 2 | May 23, 2025 00:30 | May 29, 2025 14:45 | 6d 14h | 751 | 948 |
| 3 | September 23, 2025 23:45 | September 30, 2025 15:30 | 6d 15h | 747 | 1,698 |
| 4 | March 4, 2025 16:00 | March 4, 2025 22:45 | 6h 45m | 699 | 2,081 |
| 5 | April 5, 2025 04:30 | April 15, 2025 17:00 | 10d 12h | 477 | 2,800 |
| 6 | March 14, 2025 18:30 | March 14, 2025 23:00 | 4h 30m | 455 | 1,145 |
| 7 | March 6, 2025 17:15 | March 13, 2025 02:45 | 6d 9h | 373 | 1,390 |
| 8 | March 23, 2025 05:15 | March 23, 2025 08:30 | 3h 15m | 371 | 1,206 |
| 9 | January 29, 2025 10:15 | February 5, 2025 16:15 | 7d 6h | 336 | 2,853 |
| 10 | May 29, 2025 21:15 | June 11, 2025 09:45 | 12d 12h | 219 | 4,447 |
Outage episodes by size in 2025: 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 Sterling County reported on EIA Form 861 for 2025, 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 | 2024 | 1.8 hrs | 1.15 | 1.7 hrs | 1.13 |
| Concho Valley Elec Coop Inc | 2024 | 6.5 hrs | 2.88 | 6.5 hrs | 2.88 |
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 2025; 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, 2025, 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/2025/texas/sterling-county