County annual report · FIPS 49041
2018 Sevier County, UT Power Outage Report
In 2018, customers in Sevier County, UT went without power for an average of 2.1 hours, a total of 17K customer-hours (Utah average 1.9 hours). That ranks 18th worst of 26 Utah counties and 1837th of 2,798 nationally.
Compared with UT, the US and 2017
Coverage line is EAGLE-I's share of Utah customers tracked each year.
Biggest outages in Sevier County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 18, 2018 22:45 | February 19, 2018 00:00 | 1h 15m | 1,992 | 2,143 |
| 2 | September 2, 2018 07:00 | September 2, 2018 13:45 | 6h 45m | 1,774 | 7,938 |
| 3 | February 11, 2018 00:30 | February 11, 2018 05:45 | 5h 15m | 503 | 532 |
| 4 | December 28, 2018 17:15 | December 28, 2018 18:30 | 1h 15m | 393 | 491 |
| 5 | May 16, 2018 21:00 | May 16, 2018 23:30 | 2h 30m | 369 | 407 |
| 6 | June 15, 2018 12:00 | June 15, 2018 16:15 | 4h 15m | 358 | 605 |
| 7 | March 23, 2018 16:30 | March 23, 2018 18:15 | 1h 45m | 311 | 544 |
| 8 | April 7, 2018 04:30 | April 7, 2018 06:45 | 2h 15m | 278 | 439 |
| 9 | July 29, 2018 23:45 | July 30, 2018 00:45 | 1h | 166 | 125 |
| 10 | March 22, 2018 15:15 | March 22, 2018 16:45 | 1h 30m | 156 | 95 |
Outage episodes by size in 2018: 13 reached 100+ customers, 2 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 2018, 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 | 2018 | 3.2 hrs | 1.62 | 2.0 hrs | 1.25 |
| Garkane Energy Coop, Inc | 2018 | 6.5 hrs | - | 6.5 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 80% of Utah's customers in 2018; 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, 2018, 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/2018/utah/sevier-county