County annual report · FIPS 48329
2021 Midland County, TX Power Outage Report
In 2021, customers in Midland County, TX went without power for an average of 13.5 hours, a total of 2.2M customer-hours (Texas average 21.0 hours). That ranks 173rd worst of 252 Texas counties and 620th of 2,974 nationally.
Compared with TX, the US and 2020
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Midland County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 13, 2021 19:45 | February 21, 2021 11:30 | 7d 15h | 46,750 | 1.9M |
| 2 | January 27, 2021 14:45 | January 28, 2021 00:45 | 10h | 4,072 | 2,376 |
| 3 | July 2, 2021 15:15 | July 4, 2021 07:45 | 1d 16h | 4,038 | 14K |
| 4 | July 25, 2021 23:15 | July 27, 2021 05:45 | 1d 6h | 3,746 | 12K |
| 5 | August 18, 2021 12:30 | August 18, 2021 23:45 | 11h 15m | 3,351 | 2,462 |
| 6 | May 29, 2021 03:45 | May 30, 2021 16:00 | 1d 12h | 3,009 | 9,922 |
| 7 | July 5, 2021 12:45 | July 6, 2021 10:15 | 21h 30m | 2,890 | 5,892 |
| 8 | June 26, 2021 23:00 | June 28, 2021 06:15 | 1d 7h | 2,778 | 12K |
| 9 | November 7, 2021 16:15 | November 7, 2021 18:15 | 2h | 2,659 | 2,656 |
| 10 | March 13, 2021 21:00 | March 14, 2021 11:00 | 14h | 2,617 | 8,138 |
Outage episodes by size in 2021: 156 reached 100+ customers, 40 reached 1,000+ customers, 1 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 2021, 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 | 2021 | 3.2 hrs | 1.75 | 2.0 hrs | 1.07 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 94% of Texas's customers in 2021; 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, 2021, 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/2021/texas/midland-county