County annual report · FIPS 49003
2018 Box Elder County, UT Power Outage Report
In 2018, customers in Box Elder County, UT went without power for an average of 2.4 hours, a total of 56K customer-hours (Utah average 1.9 hours). That ranks 16th worst of 26 Utah counties and 1682nd 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 Box Elder 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 | January 29, 2018 11:30 | January 29, 2018 11:45 | 15m | 3,220 | 805 |
| 2 | February 26, 2018 05:15 | February 26, 2018 05:30 | 15m | 2,452 | 613 |
| 3 | June 12, 2018 06:00 | June 12, 2018 06:15 | 15m | 1,657 | 414 |
| 4 | October 4, 2018 10:45 | October 4, 2018 16:15 | 5h 30m | 1,655 | 3,710 |
| 5 | January 20, 2018 00:15 | January 20, 2018 08:45 | 8h 30m | 1,608 | 5,062 |
| 6 | August 2, 2018 21:45 | August 2, 2018 23:15 | 1h 30m | 1,490 | 1,342 |
| 7 | June 5, 2018 03:00 | June 5, 2018 14:15 | 11h 15m | 877 | 5,805 |
| 8 | May 16, 2018 12:30 | May 16, 2018 17:00 | 4h 30m | 801 | 2,186 |
| 9 | August 9, 2018 02:00 | August 9, 2018 03:00 | 1h | 684 | 172 |
| 10 | April 22, 2018 19:15 | April 22, 2018 20:15 | 1h | 680 | 172 |
Outage episodes by size in 2018: 43 reached 100+ customers, 6 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 Box Elder 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 |
| Raft Rural Elec Coop Inc | - | - | - | - | - |
| Brigham City Corporation | - | - | - | - | - |
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 ÷ 23,064 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. Box Elder County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Box Elder 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/box-elder-county