County annual report · FIPS 49039
2018 Sanpete County, UT Power Outage Report
In 2018, customers in Sanpete County, UT went without power for an average of 5.3 hours, a total of 26K customer-hours (Utah average 1.9 hours). That ranks 7th worst of 26 Utah counties and 998th of 2,798 nationally.
Compared with UT, the US and 2017
Coverage line is EAGLE-I's share of Utah customers tracked each year.
Biggest outages in Sanpete 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 19, 2018 16:00 | December 20, 2018 00:30 | 8h 30m | 2,243 | 2,926 |
| 2 | November 24, 2018 09:00 | November 24, 2018 10:45 | 1h 45m | 2,241 | 3,922 |
| 3 | March 1, 2018 20:30 | March 1, 2018 23:45 | 3h 15m | 907 | 709 |
| 4 | August 8, 2018 19:15 | August 8, 2018 20:45 | 1h 30m | 780 | 1,170 |
| 5 | September 6, 2018 15:45 | September 6, 2018 20:00 | 4h 15m | 780 | 968 |
| 6 | May 23, 2018 21:15 | May 23, 2018 22:45 | 1h 30m | 775 | 679 |
| 7 | August 21, 2018 13:30 | August 21, 2018 23:45 | 10h 15m | 674 | 1,909 |
| 8 | May 12, 2018 11:15 | May 12, 2018 18:45 | 7h 30m | 295 | 1,108 |
| 9 | March 23, 2018 01:00 | March 23, 2018 05:45 | 4h 45m | 294 | 1,245 |
| 10 | May 20, 2018 01:30 | May 20, 2018 02:00 | 30m | 294 | 147 |
Outage episodes by size in 2018: 25 reached 100+ customers, 2 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 Sanpete 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 |
|---|---|---|---|---|---|
| PacifiCorp | 2018 | 3.2 hrs | 1.62 | 2.0 hrs | 1.25 |
| City of Ephraim - (UT) | - | - | - | - | - |
| City of Manti - (UT) | - | - | - | - | - |
| City of Mt Pleasant - (UT) | - | - | - | - | - |
| Fairview City Corporation | - | - | - | - | - |
| Spring City Corporation | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 80% of Utah's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 4,998 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. Sanpete County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Sanpete County, UT 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/utah/sanpete-county