County annual report · FIPS 49045
2024 Tooele County, UT Power Outage Report
In 2024, customers in Tooele County, UT went without power for an average of 8.3 hours, a total of 241K customer-hours (Utah average 3.1 hours). That ranks 6th worst of 26 Utah counties and 1081st of 2,990 nationally.
Compared with UT, the US and 2023
Coverage line is EAGLE-I's share of Utah customers tracked each year.
Biggest outages in Tooele County, 2024
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 8, 2024 15:45 | March 8, 2024 21:45 | 6h | 7,706 | 2,074 |
| 2 | June 19, 2024 20:00 | June 20, 2024 02:45 | 6h 45m | 5,755 | 1,454 |
| 3 | March 19, 2024 06:15 | March 19, 2024 08:30 | 2h 15m | 5,276 | 12K |
| 4 | May 20, 2024 15:30 | May 20, 2024 22:15 | 6h 45m | 4,743 | 2,389 |
| 5 | July 14, 2024 22:30 | July 15, 2024 07:45 | 9h 15m | 3,561 | 9,369 |
| 6 | June 27, 2024 12:45 | June 29, 2024 12:00 | 1d 23h | 3,201 | 18K |
| 7 | July 16, 2024 15:30 | July 16, 2024 23:00 | 7h 30m | 3,129 | 4,712 |
| 8 | July 20, 2024 18:00 | July 22, 2024 00:30 | 1d 6h | 3,129 | 14K |
| 9 | October 29, 2024 15:00 | October 30, 2024 10:45 | 19h 45m | 2,839 | 13K |
| 10 | November 7, 2024 02:15 | November 7, 2024 22:00 | 19h 45m | 2,828 | 13K |
Outage episodes by size in 2024: 74 reached 100+ customers, 38 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 Tooele County reported on EIA Form 861 for 2024, 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 | 2024 | 4.6 hrs | 1.67 | 2.0 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 n/a of Utah's customers in 2024; 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, 2024, 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/2024/utah/tooele-county