County annual report · FIPS 49043
2024 Summit County, UT Power Outage Report
In 2024, customers in Summit County, UT went without power for an average of 8.2 hours, a total of 149K customer-hours (Utah average 3.1 hours). That ranks 7th worst of 26 Utah counties and 1092nd 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 Summit 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 | July 29, 2024 15:30 | July 30, 2024 02:00 | 10h 30m | 3,696 | 966 |
| 2 | March 2, 2024 04:45 | March 2, 2024 10:00 | 5h 15m | 3,329 | 7,577 |
| 3 | September 15, 2024 14:45 | September 15, 2024 23:45 | 9h | 3,145 | 14K |
| 4 | September 23, 2024 04:15 | September 23, 2024 08:45 | 4h 30m | 2,728 | 8,012 |
| 5 | November 2, 2024 13:45 | November 3, 2024 00:15 | 10h 30m | 2,332 | 2,495 |
| 6 | September 16, 2024 11:15 | September 17, 2024 06:30 | 19h 15m | 2,237 | 2,817 |
| 7 | August 18, 2024 21:15 | August 19, 2024 07:15 | 10h | 2,188 | 4,706 |
| 8 | August 17, 2024 17:15 | August 18, 2024 10:15 | 17h | 2,054 | 6,246 |
| 9 | May 7, 2024 11:00 | May 7, 2024 16:15 | 5h 15m | 2,021 | 8,586 |
| 10 | August 18, 2024 15:45 | August 18, 2024 18:15 | 2h 30m | 2,008 | 504 |
Outage episodes by size in 2024: 73 reached 100+ customers, 25 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 Summit 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 |
| Bridger Valley Elec 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 n/a of Utah's customers in 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 18,106 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. Summit County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Summit 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/summit-county