County annual report · FIPS 49035
2022 Salt Lake County, UT Power Outage Report
In 2022, customers in Salt Lake County, UT went without power for an average of 2.3 hours, a total of 1.2M customer-hours (Utah average 2.7 hours). That ranks 18th worst of 26 Utah counties and 2172nd 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 Salt Lake 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 | November 7, 2022 05:45 | November 8, 2022 08:30 | 1d 2h | 22,485 | 49K |
| 2 | March 6, 2022 00:15 | March 12, 2022 07:45 | 6d 7h | 13,708 | 154K |
| 3 | January 12, 2022 15:15 | January 13, 2022 06:15 | 15h | 9,805 | 15K |
| 4 | April 11, 2022 08:45 | April 14, 2022 06:00 | 2d 21h | 9,188 | 15K |
| 5 | February 15, 2022 14:00 | February 16, 2022 10:45 | 20h 45m | 8,243 | 4,445 |
| 6 | April 20, 2022 09:45 | April 21, 2022 07:45 | 22h | 7,921 | 13K |
| 7 | December 23, 2022 12:00 | December 24, 2022 14:00 | 1d 2h | 7,795 | 17K |
| 8 | May 13, 2022 10:45 | May 14, 2022 07:45 | 21h | 7,385 | 9,664 |
| 9 | March 23, 2022 13:45 | March 24, 2022 04:00 | 14h 15m | 6,136 | 7,309 |
| 10 | August 20, 2022 14:15 | August 21, 2022 07:45 | 17h 30m | 5,934 | 6,611 |
Outage episodes by size in 2022: 228 reached 100+ customers, 85 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 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 |
| 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 80% of Utah's customers in 2022; 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, 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/salt-lake-county