County annual report · FIPS 49057
2021 Weber County, UT Power Outage Report
In 2021, customers in Weber County, UT went without power for an average of 4.1 hours, a total of 427K customer-hours (Utah average 2.6 hours). That ranks 11th worst of 25 Utah counties and 1506th of 2,974 nationally.
Compared with UT, the US and 2020
Coverage line is EAGLE-I's share of Utah customers tracked each year.
Biggest outages in Weber County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 14, 2021 13:30 | July 15, 2021 05:45 | 16h 15m | 9,719 | 21K |
| 2 | February 5, 2021 19:30 | February 5, 2021 19:45 | 15m | 9,572 | 2,393 |
| 3 | April 3, 2021 03:00 | April 3, 2021 08:45 | 5h 45m | 9,097 | 13K |
| 4 | December 15, 2021 03:15 | December 17, 2021 05:45 | 2d 2h | 8,395 | 32K |
| 5 | August 21, 2021 18:00 | August 23, 2021 05:30 | 1d 11h | 4,094 | 5,670 |
| 6 | July 9, 2021 12:45 | July 10, 2021 05:00 | 16h 15m | 3,563 | 35K |
| 7 | May 30, 2021 08:30 | May 30, 2021 23:45 | 15h 15m | 3,395 | 8,996 |
| 8 | January 14, 2021 19:00 | January 15, 2021 02:15 | 7h 15m | 3,236 | 1,048 |
| 9 | May 23, 2021 16:00 | May 23, 2021 22:45 | 6h 45m | 3,226 | 3,538 |
| 10 | October 7, 2021 03:30 | October 7, 2021 07:00 | 3h 30m | 2,912 | 2,184 |
Outage episodes by size in 2021: 172 reached 100+ customers, 37 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 Weber County reported on EIA Form 861 for 2021, 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 | 2021 | 4.3 hrs | 1.86 | 2.0 hrs | 1.19 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 79% of Utah's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 103,528 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. Weber County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Weber County, UT annual power outage report, 2021, 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/2021/utah/weber-county