massoutage

County annual report · FIPS 49027

2025 Millard County, UT Power Outage Report

In 2025, customers in Millard County, UT went without power for an average of 3.7 hours, a total of 16K customer-hours (Utah average 3.1 hours). That ranks 15th worst of 26 Utah counties and 1833rd of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
3.7
4,388 customers
Customer-hours out
16K
Peak customers out
871
Outages ≥1,000 out
0
0 of 10,000+ · 278 total
Longest outage
1d 2h
began May 26, 2025
Rank in state
15th/26
1833rd of 3,000 US

Compared with UT, the US and 2024

Millard County, UT average hours without power per customer compared with state and national averages, 2025Millard County 3.7 hours, Utah average 3.1 hours, US average 5.9 hours, Millard County, 2024 4.7 hoursMillard CountyMillard County3.7hUtah averageUtah average3.1hUS averageUS average5.9hMillard County, 2024Millard County, 20244.7h
Use the arrow keys to read values.
Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

CSVJSON
Millard County, UT customer-hours without power by month, 2025Jan 180, Feb 325, Mar 319, Apr 265, May 2,333, Jun 1,197, Jul 3,461, Aug 1,281, Sep 1,181, Oct 530, Nov 1,799, Dec 3,53701k2k3k4k180Jan325Feb319Mar265Apr2,333May1,197Jun3,461Jul1,281Aug1,181Sep530Oct1,799Nov3,537Dec
Use the arrow keys to read values.
Customer-hours; December was the worst month.

Millard County year over year

CSVJSON
Millard County, UT: average hours without power per customer by year2015: no data; 2016: no data; 2017: 1.3h; 2018: 2.9h, coverage 80%; 2019: 4.7h, coverage 80%; 2020: 3.7h, coverage 79%; 2021: 7.2h, coverage 79%; 2022: 4.0h, coverage 80%; 2023: 2.5h; 2024: 4.7h; 2025: 3.7h024680%50%100%n/a2015n/a20161.3h20172.9h20184.7h20193.7h20207.2h20214.0h20222.5h20234.7h20243.7h2025
Use the arrow keys to read values.
Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Utah customers tracked each year.

Biggest outages in Millard County, 2025

The 10 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 17, 2025 16:15December 17, 2025 19:303h 15m871923
2September 1, 2025 10:15September 1, 2025 11:0045m865649
3July 16, 2025 00:15July 16, 2025 05:004h 45m7951,112
4December 4, 2025 15:30December 4, 2025 18:453h 15m5561,596
5July 30, 2025 09:45July 30, 2025 11:151h 30m551827
6February 25, 2025 16:30February 25, 2025 16:4515m535134
7July 9, 2025 22:30July 10, 2025 01:002h 30m343453
8November 4, 2025 07:15November 4, 2025 12:004h 45m2531,202
9June 18, 2025 13:15June 18, 2025 17:304h 15m250279
10July 30, 2025 02:00July 30, 2025 02:4545m25065

Outage episodes by size in 2025: 22 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 Millard County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
PacifiCorp20244.6 hrs1.672.0 hrs1.11
Dixie Escalante R E A, Inc202441 min0.5241 min0.52
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 2025; 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, 2025, 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/2025/utah/millard-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON