County annual report · FIPS 48329
2018 Midland County, TX Power Outage Report
In 2018, customers in Midland County, TX went without power for an average of 1.4 hours, a total of 238K customer-hours (Texas average 2.4 hours). That ranks 209th worst of 253 Texas counties and 2116th 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 Midland 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 | December 2, 2018 12:00 | December 2, 2018 20:00 | 8h | 6,238 | 10K |
| 2 | October 5, 2018 15:45 | October 10, 2018 02:45 | 4d 11h | 5,920 | 32K |
| 3 | June 29, 2018 20:15 | July 1, 2018 07:30 | 1d 11h | 3,358 | 11K |
| 4 | August 9, 2018 09:00 | August 10, 2018 11:45 | 1d 2h | 2,947 | 4,363 |
| 5 | August 17, 2018 15:00 | August 18, 2018 03:15 | 12h 15m | 2,656 | 1,879 |
| 6 | August 27, 2018 13:30 | August 28, 2018 22:30 | 1d 9h | 2,603 | 9,385 |
| 7 | September 14, 2018 13:00 | September 14, 2018 21:45 | 8h 45m | 2,524 | 3,052 |
| 8 | March 9, 2018 19:45 | March 10, 2018 20:15 | 1d | 2,348 | 5,556 |
| 9 | May 21, 2018 12:00 | May 22, 2018 03:45 | 15h 45m | 2,280 | 1,819 |
| 10 | March 23, 2018 18:45 | March 24, 2018 03:45 | 9h | 2,079 | 3,377 |
Outage episodes by size in 2018: 127 reached 100+ customers, 27 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 Midland 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 |
| Southwestern Public Service Co | 2018 | 2.0 hrs | 1.08 | 1.9 hrs | 1.06 |
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 ÷ 164,550 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. Midland County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Midland 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/midland-county