County annual report · FIPS 49035
2024 Salt Lake County, UT Power Outage Report
In 2024, customers in Salt Lake County, UT went without power for an average of 2.4 hours, a total of 1.2M customer-hours (Utah average 3.1 hours). That ranks 20th worst of 26 Utah counties and 2310th 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 Salt Lake 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 | June 20, 2024 12:00 | June 25, 2024 07:45 | 4d 19h | 21,719 | 43K |
| 2 | August 4, 2024 12:15 | August 7, 2024 08:15 | 2d 20h | 20,577 | 40K |
| 3 | February 29, 2024 15:15 | March 7, 2024 09:45 | 6d 18h | 7,250 | 66K |
| 4 | October 1, 2024 11:00 | October 7, 2024 05:15 | 5d 18h | 6,098 | 30K |
| 5 | February 8, 2024 14:15 | February 11, 2024 08:45 | 2d 18h | 5,896 | 11K |
| 6 | September 19, 2024 13:00 | September 20, 2024 10:00 | 21h | 5,543 | 7,854 |
| 7 | November 30, 2024 15:30 | December 2, 2024 01:30 | 1d 10h | 5,432 | 21K |
| 8 | June 5, 2024 12:45 | June 8, 2024 07:45 | 2d 19h | 5,351 | 17K |
| 9 | July 10, 2024 13:15 | July 13, 2024 10:15 | 2d 21h | 5,204 | 20K |
| 10 | October 17, 2024 07:00 | October 19, 2024 07:00 | 2d | 5,149 | 11K |
Outage episodes by size in 2024: 217 reached 100+ customers, 91 reached 1,000+ customers, 2 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 Salt Lake 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 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| City of Murray - (UT) | - | - | - | - | - |
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 ÷ 494,047 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. Salt Lake County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Salt Lake 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/salt-lake-county