County annual report · FIPS 49027
2023 Millard County, UT Power Outage Report
In 2023, customers in Millard County, UT went without power for an average of 2.5 hours, a total of 11K customer-hours (Utah average 2.5 hours). That ranks 14th worst of 26 Utah counties and 2115th 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 Millard 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 | September 3, 2023 22:15 | September 4, 2023 02:30 | 4h 15m | 1,239 | 1,241 |
| 2 | October 5, 2023 07:15 | October 5, 2023 08:00 | 45m | 1,052 | 789 |
| 3 | March 20, 2023 20:45 | March 20, 2023 23:45 | 3h | 537 | 272 |
| 4 | October 20, 2023 15:15 | October 20, 2023 17:45 | 2h 30m | 280 | 359 |
| 5 | August 24, 2023 15:15 | August 24, 2023 20:30 | 5h 15m | 247 | 873 |
| 6 | January 11, 2023 00:00 | January 11, 2023 12:30 | 12h 30m | 159 | 1,041 |
| 7 | August 30, 2023 15:15 | August 30, 2023 21:00 | 5h 45m | 130 | 89 |
| 8 | July 18, 2023 21:00 | July 18, 2023 23:15 | 2h 15m | 124 | 151 |
| 9 | July 18, 2023 01:00 | July 18, 2023 07:30 | 6h 30m | 118 | 416 |
| 10 | March 10, 2023 11:00 | March 10, 2023 18:00 | 7h | 116 | 236 |
Outage episodes by size in 2023: 16 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 Millard 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 |
| Dixie Escalante R E A, Inc | 2023 | 46 min | 0.62 | 46 min | 0.62 |
| 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 n/a of Utah's customers in 2023; 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, 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/millard-county