County annual report · FIPS 49041
2023 Sevier County, UT Power Outage Report
In 2023, customers in Sevier County, UT went without power for an average of 0.9 hours, a total of 6,945 customer-hours (Utah average 2.5 hours). That ranks 25th worst of 26 Utah counties and 2721st of 2,977 nationally.
Compared with UT, the US and 2022
Coverage line is EAGLE-I's share of Utah customers tracked each year.
Biggest outages in Sevier County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 26, 2023 15:15 | December 26, 2023 21:45 | 6h 30m | 494 | 557 |
| 2 | August 15, 2023 15:45 | August 15, 2023 21:15 | 5h 30m | 339 | 514 |
| 3 | August 9, 2023 15:00 | August 9, 2023 16:00 | 1h | 338 | 254 |
| 4 | August 17, 2023 13:15 | August 17, 2023 14:00 | 45m | 338 | 254 |
| 5 | June 27, 2023 17:00 | June 27, 2023 18:30 | 1h 30m | 334 | 501 |
| 6 | March 19, 2023 02:45 | March 19, 2023 04:30 | 1h 45m | 289 | 506 |
| 7 | August 20, 2023 00:00 | August 20, 2023 03:00 | 3h | 237 | 302 |
| 8 | May 10, 2023 22:00 | May 11, 2023 08:45 | 10h 45m | 196 | 493 |
| 9 | June 19, 2023 17:45 | June 19, 2023 19:45 | 2h | 196 | 59 |
| 10 | January 11, 2023 01:45 | January 11, 2023 05:30 | 3h 45m | 159 | 206 |
Outage episodes by size in 2023: 10 reached 100+ customers, 0 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 Sevier County reported on EIA Form 861 for 2023, 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 | 2023 | 8.2 hrs | 1.42 | 1.9 hrs | 0.99 |
| Garkane Energy Coop, Inc | 2023 | 16.0 hrs | - | 12.8 hrs | - |
| City of Monroe - (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 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 8,108 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. Sevier County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Sevier County, UT annual power outage report, 2023, 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/2023/utah/sevier-county