County annual report · FIPS 49013
2018 Duchesne County, UT Power Outage Report
In 2018, customers in Duchesne County, UT went without power for an average of 0.0 hours, a total of 48 customer-hours (Utah average 1.9 hours). That ranks 26th worst of 26 Utah counties and 2744th 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 Duchesne County, 2018
The 5 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 2, 2018 03:30 | May 2, 2018 04:15 | 45m | 43 | 32 |
| 2 | November 8, 2018 22:15 | November 8, 2018 22:30 | 15m | 3 | 1 |
| 3 | April 3, 2018 06:00 | April 3, 2018 09:45 | 3h 45m | 1 | 4 |
| 4 | April 13, 2018 16:30 | April 13, 2018 19:45 | 3h 15m | 1 | 3 |
| 5 | May 6, 2018 22:30 | May 7, 2018 06:45 | 8h 15m | 1 | 8 |
Outage episodes by size in 2018: 0 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 Duchesne 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 |
| Moon Lake Electric Assn Inc | - | - | - | - | - |
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 ÷ 6,214 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. Duchesne County has data for 2017–2020, 2022–2025.
Cite this report
MassOutage (massoutage.com), Duchesne 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/duchesne-county