County annual report · FIPS 49051
2021 Wasatch County, UT Power Outage Report
In 2021, customers in Wasatch County, UT went without power for an average of 0.9 hours, a total of 17K customer-hours (Utah average 2.6 hours). That ranks 24th worst of 25 Utah counties and 2713th of 2,974 nationally.
Compared with UT, the US and 2020
Coverage line is EAGLE-I's share of Utah customers tracked each year.
Biggest outages in Wasatch 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 | March 20, 2021 18:00 | March 20, 2021 22:15 | 4h 15m | 2,077 | 4,367 |
| 2 | June 23, 2021 17:15 | June 23, 2021 20:00 | 2h 45m | 718 | 902 |
| 3 | September 8, 2021 17:45 | September 8, 2021 19:45 | 2h | 416 | 624 |
| 4 | July 8, 2021 23:45 | July 9, 2021 03:00 | 3h 15m | 394 | 812 |
| 5 | May 3, 2021 16:45 | May 3, 2021 23:15 | 6h 30m | 354 | 1,445 |
| 6 | May 24, 2021 16:15 | May 24, 2021 22:45 | 6h 30m | 344 | 1,359 |
| 7 | December 24, 2021 01:00 | December 24, 2021 06:45 | 5h 45m | 158 | 903 |
| 8 | January 14, 2021 15:00 | January 14, 2021 17:15 | 2h 15m | 136 | 138 |
| 9 | June 24, 2021 14:00 | June 24, 2021 23:45 | 9h 45m | 103 | 987 |
| 10 | July 18, 2021 21:15 | July 19, 2021 06:45 | 9h 30m | 91 | 775 |
Outage episodes by size in 2021: 9 reached 100+ customers, 1 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 Wasatch 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 |
|---|---|---|---|---|---|
| PacifiCorp | 2021 | 4.3 hrs | 1.86 | 2.0 hrs | 1.19 |
| Heber Light & Power Company | 2018 | 2.4 hrs | 2.39 | 2.4 hrs | 2.39 |
| Moon Lake Electric Assn 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 79% of Utah's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 19,626 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. Wasatch County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Wasatch County, UT 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/utah/wasatch-county