County annual report · FIPS 49045
2022 Tooele County, UT Power Outage Report
In 2022, customers in Tooele County, UT went without power for an average of 4.0 hours, a total of 115K customer-hours (Utah average 2.7 hours). That ranks 11th worst of 26 Utah counties and 1668th of 2,976 nationally.
Compared with UT, the US and 2021
Coverage line is EAGLE-I's share of Utah customers tracked each year.
Biggest outages in Tooele County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 19, 2022 23:45 | April 20, 2022 19:00 | 19h 15m | 11,237 | 15K |
| 2 | June 17, 2022 14:00 | June 19, 2022 11:15 | 1d 21h | 5,259 | 19K |
| 3 | June 13, 2022 02:30 | June 14, 2022 13:45 | 1d 11h | 4,907 | 6,812 |
| 4 | February 2, 2022 07:00 | February 2, 2022 20:15 | 13h 15m | 4,845 | 5,221 |
| 5 | August 11, 2022 20:00 | August 12, 2022 12:30 | 16h 30m | 3,870 | 8,627 |
| 6 | January 19, 2022 21:15 | January 20, 2022 00:30 | 3h 15m | 3,187 | 1,032 |
| 7 | June 19, 2022 21:45 | June 27, 2022 23:45 | 8d 2h | 2,817 | 2,564 |
| 8 | July 18, 2022 22:30 | July 20, 2022 00:15 | 1d 1h | 2,433 | 825 |
| 9 | September 2, 2022 15:15 | September 3, 2022 00:00 | 8h 45m | 2,109 | 1,710 |
| 10 | July 17, 2022 22:30 | July 18, 2022 14:00 | 15h 30m | 2,047 | 3,355 |
Outage episodes by size in 2022: 37 reached 100+ customers, 21 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 Tooele County reported on EIA Form 861 for 2022, 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 | 2022 | 5.2 hrs | 1.58 | 1.8 hrs | 1.11 |
| Mt Wheeler Power, Inc | - | - | - | - | - |
| Wells Rural Electric Co | - | - | - | - | - |
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 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 28,885 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. Tooele County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Tooele County, UT annual power outage report, 2022, 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/2022/utah/tooele-county