County annual report · FIPS 49019
2018 Grand County, UT Power Outage Report
In 2018, customers in Grand County, UT went without power for an average of 5.6 hours, a total of 22K customer-hours (Utah average 1.9 hours). That ranks 5th worst of 26 Utah counties and 961st 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 Grand 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 | June 13, 2018 01:15 | June 13, 2018 21:45 | 20h 30m | 3,019 | 5,370 |
| 2 | April 24, 2018 07:15 | April 24, 2018 10:15 | 3h | 2,057 | 6,171 |
| 3 | February 6, 2018 12:45 | February 6, 2018 17:15 | 4h 30m | 1,259 | 3,776 |
| 4 | April 4, 2018 22:00 | April 4, 2018 22:15 | 15m | 1,223 | 306 |
| 5 | July 10, 2018 14:30 | July 10, 2018 16:30 | 2h | 698 | 350 |
| 6 | September 27, 2018 15:30 | September 27, 2018 21:30 | 6h | 354 | 236 |
| 7 | June 7, 2018 19:15 | June 7, 2018 19:45 | 30m | 322 | 81 |
| 8 | October 4, 2018 14:45 | October 4, 2018 21:00 | 6h 15m | 276 | 658 |
| 9 | January 20, 2018 23:45 | January 21, 2018 02:15 | 2h 30m | 273 | 378 |
| 10 | October 5, 2018 18:30 | October 5, 2018 21:00 | 2h 30m | 174 | 267 |
Outage episodes by size in 2018: 14 reached 100+ customers, 4 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 Grand 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 |
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 ÷ 3,998 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. Grand County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Grand 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/grand-county