County annual report · FIPS 48359
2021 Oldham County, TX Power Outage Report
In 2021, customers in Oldham County, TX went without power for an average of 16.6 hours, a total of 16K customer-hours (Texas average 21.0 hours). That ranks 159th worst of 252 Texas counties and 514th 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 Oldham 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 16, 2021 13:15 | February 16, 2021 21:30 | 8h 15m | 985 | 6,779 |
| 2 | March 17, 2021 09:00 | March 18, 2021 18:30 | 1d 9h | 325 | 1,763 |
| 3 | July 24, 2021 04:15 | July 24, 2021 12:00 | 7h 45m | 232 | 1,333 |
| 4 | July 24, 2021 19:45 | July 25, 2021 10:00 | 14h 15m | 231 | 428 |
| 5 | December 15, 2021 17:00 | December 16, 2021 19:00 | 1d 2h | 164 | 1,338 |
| 6 | January 25, 2021 13:30 | January 25, 2021 16:30 | 3h | 103 | 122 |
| 7 | December 6, 2021 04:15 | December 6, 2021 05:45 | 1h 30m | 79 | 79 |
| 8 | January 18, 2021 11:30 | January 18, 2021 15:00 | 3h 30m | 78 | 239 |
| 9 | March 13, 2021 09:45 | March 13, 2021 12:15 | 2h 30m | 78 | 195 |
| 10 | March 27, 2021 10:15 | March 27, 2021 18:00 | 7h 45m | 78 | 555 |
Outage episodes by size in 2021: 6 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 Oldham 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 |
|---|---|---|---|---|---|
| Southwestern Public Service Co | 2021 | 3.2 hrs | 1.75 | 2.0 hrs | 1.07 |
| Deaf Smith Electric Coop, Inc | 2021 | 6.7 hrs | 3.00 | 4.2 hrs | 2.10 |
| Farmers Electric Coop, Inc - (NM) | - | - | - | - | - |
| Rita Blanca Electric Coop, Inc | - | - | - | - | - |
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 ÷ 948 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. Oldham County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Oldham 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/oldham-county