County annual report · FIPS 49027
2021 Millard County, UT Power Outage Report
In 2021, customers in Millard County, UT went without power for an average of 7.2 hours, a total of 31K customer-hours (Utah average 2.6 hours). That ranks 6th worst of 25 Utah counties and 1017th 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 Millard 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 | September 29, 2021 00:15 | September 29, 2021 22:45 | 22h 30m | 1,741 | 3,170 |
| 2 | July 26, 2021 12:15 | July 26, 2021 14:45 | 2h 30m | 1,221 | 2,745 |
| 3 | December 9, 2021 18:30 | December 9, 2021 21:00 | 2h 30m | 1,220 | 1,475 |
| 4 | August 18, 2021 04:00 | August 19, 2021 22:45 | 1d 18h | 816 | 3,539 |
| 5 | May 23, 2021 22:45 | May 24, 2021 01:15 | 2h 30m | 535 | 405 |
| 6 | June 16, 2021 16:30 | June 16, 2021 19:00 | 2h 30m | 535 | 152 |
| 7 | March 10, 2021 04:30 | March 10, 2021 07:45 | 3h 15m | 534 | 1,736 |
| 8 | April 7, 2021 15:30 | April 7, 2021 20:15 | 4h 45m | 534 | 2,537 |
| 9 | February 10, 2021 18:45 | February 10, 2021 19:00 | 15m | 533 | 133 |
| 10 | March 10, 2021 16:15 | March 10, 2021 23:15 | 7h | 509 | 3,178 |
Outage episodes by size in 2021: 27 reached 100+ customers, 3 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 Millard 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 |
| Dixie Escalante R E A, Inc | 2021 | 17 min | 0.27 | 17 min | 0.27 |
| Mt Wheeler Power, Inc | - | - | - | - | - |
| Fillmore City Corporation | - | - | - | - | - |
| Kanosh Town Corporation | - | - | - | - | - |
| Meadow Town Corporation | - | - | - | - | - |
| Town of Holden - (UT) | - | - | - | - | - |
| Town of Oak City - (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 79% of Utah's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 4,388 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. Millard County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Millard 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/millard-county