County annual report · FIPS 49051
2018 Wasatch County, UT Power Outage Report
In 2018, customers in Wasatch County, UT went without power for an average of 0.5 hours, a total of 10K customer-hours (Utah average 1.9 hours). That ranks 25th worst of 26 Utah counties and 2491st 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 Wasatch 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 | August 25, 2018 19:45 | August 25, 2018 23:15 | 3h 30m | 1,634 | 2,891 |
| 2 | April 7, 2018 20:00 | April 7, 2018 23:30 | 3h 30m | 1,559 | 3,119 |
| 3 | August 22, 2018 16:00 | August 22, 2018 17:15 | 1h 15m | 477 | 596 |
| 4 | January 10, 2018 19:15 | January 10, 2018 22:30 | 3h 15m | 108 | 84 |
| 5 | August 14, 2018 20:00 | August 15, 2018 01:30 | 5h 30m | 108 | 192 |
| 6 | July 30, 2018 21:30 | July 31, 2018 07:30 | 10h | 76 | 137 |
| 7 | December 22, 2018 11:30 | December 22, 2018 18:45 | 7h 15m | 56 | 79 |
| 8 | March 9, 2018 22:15 | March 11, 2018 01:45 | 1d 3h | 45 | 853 |
| 9 | August 28, 2018 16:45 | August 28, 2018 17:45 | 1h | 45 | 24 |
| 10 | October 7, 2018 19:00 | October 8, 2018 18:15 | 23h 15m | 41 | 242 |
Outage episodes by size in 2018: 5 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 Wasatch 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 |
| 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 80% of Utah's customers in 2018; 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, 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/wasatch-county