County annual report · FIPS 49015
2021 Emery County, UT Power Outage Report
In 2021, customers in Emery County, UT went without power for an average of 1.0 hours, a total of 3,735 customer-hours (Utah average 2.6 hours). That ranks 23rd worst of 25 Utah counties and 2675th of 2,974 nationally.
Compared with UT, the US and 2020
Coverage line is EAGLE-I's share of Utah customers tracked each year.
Biggest outages in Emery County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 2, 2021 03:00 | August 2, 2021 21:30 | 18h 30m | 249 | 690 |
| 2 | February 22, 2021 03:45 | February 22, 2021 05:30 | 1h 45m | 245 | 307 |
| 3 | February 26, 2021 14:15 | February 26, 2021 16:15 | 2h | 245 | 490 |
| 4 | December 22, 2021 20:00 | December 22, 2021 21:00 | 1h | 191 | 144 |
| 5 | August 26, 2021 10:00 | August 26, 2021 21:30 | 11h 30m | 133 | 331 |
| 6 | December 20, 2021 17:45 | December 20, 2021 20:45 | 3h | 100 | 187 |
| 7 | June 5, 2021 01:30 | June 5, 2021 06:30 | 5h | 80 | 209 |
| 8 | August 15, 2021 00:30 | August 15, 2021 02:00 | 1h 30m | 79 | 83 |
| 9 | July 20, 2021 11:15 | July 20, 2021 12:45 | 1h 30m | 77 | 96 |
| 10 | July 15, 2021 15:15 | July 15, 2021 15:45 | 30m | 76 | 38 |
Outage episodes by size in 2021: 6 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 Emery County reported on EIA Form 861 for 2021, 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 | 2021 | 4.3 hrs | 1.86 | 2.0 hrs | 1.19 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 79% of Utah's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,853 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. Emery County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Emery County, UT annual power outage report, 2021, 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/2021/utah/emery-county