County annual report · FIPS 48375
2021 Potter County, TX Power Outage Report
In 2021, customers in Potter County, TX went without power for an average of 6.5 hours, a total of 252K customer-hours (Texas average 21.0 hours). That ranks 213th worst of 252 Texas counties and 1092nd 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 Potter 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 12:00 | February 17, 2021 04:15 | 16h 15m | 17,946 | 81K |
| 2 | March 17, 2021 09:15 | March 19, 2021 20:15 | 2d 11h | 8,997 | 68K |
| 3 | February 15, 2021 01:15 | February 16, 2021 04:15 | 1d 3h | 8,918 | 9,643 |
| 4 | January 19, 2021 17:00 | January 22, 2021 18:30 | 3d 1h | 6,735 | 12K |
| 5 | February 5, 2021 14:15 | February 5, 2021 23:45 | 9h 30m | 5,504 | 2,514 |
| 6 | July 28, 2021 18:45 | July 29, 2021 04:15 | 9h 30m | 5,215 | 4,472 |
| 7 | September 8, 2021 21:30 | September 9, 2021 05:15 | 7h 45m | 3,499 | 4,982 |
| 8 | January 25, 2021 01:00 | January 25, 2021 17:30 | 16h 30m | 2,680 | 2,237 |
| 9 | July 28, 2021 05:00 | July 28, 2021 05:45 | 45m | 2,638 | 1,321 |
| 10 | March 29, 2021 14:00 | May 18, 2021 18:30 | 50d 4h | 2,571 | 17K |
Outage episodes by size in 2021: 49 reached 100+ customers, 14 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 Potter 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 |
| 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 ÷ 38,898 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. Potter County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Potter 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/potter-county