County annual report · FIPS 49019
2023 Grand County, UT Power Outage Report
In 2023, customers in Grand County, UT went without power for an average of 11.8 hours, a total of 47K customer-hours (Utah average 2.5 hours). That ranks 3rd worst of 26 Utah counties and 726th 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 Grand 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 | August 6, 2023 00:45 | August 6, 2023 04:45 | 4h | 4,551 | 11K |
| 2 | January 18, 2023 01:00 | January 19, 2023 02:00 | 1d 1h | 3,596 | 14K |
| 3 | August 6, 2023 06:15 | August 6, 2023 10:30 | 4h 15m | 3,538 | 7,963 |
| 4 | August 1, 2023 04:00 | August 1, 2023 16:30 | 12h 30m | 1,047 | 5,376 |
| 5 | December 11, 2023 16:00 | December 11, 2023 17:00 | 1h | 1,029 | 804 |
| 6 | December 11, 2023 18:30 | December 11, 2023 19:00 | 30m | 1,029 | 259 |
| 7 | June 27, 2023 23:45 | June 28, 2023 03:30 | 3h 45m | 1,012 | 515 |
| 8 | July 18, 2023 21:00 | July 18, 2023 22:15 | 1h 15m | 1,012 | 1,014 |
| 9 | November 16, 2023 13:45 | November 16, 2023 19:00 | 5h 15m | 573 | 755 |
| 10 | May 3, 2023 04:15 | May 3, 2023 07:00 | 2h 45m | 311 | 739 |
Outage episodes by size in 2023: 15 reached 100+ customers, 8 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 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 |
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 ÷ 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, 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/grand-county