County annual report · FIPS 49049
2021 Utah County, UT Power Outage Report
In 2021, customers in Utah County, UT went without power for an average of 2.5 hours, a total of 593K customer-hours (Utah average 2.6 hours). That ranks 16th worst of 25 Utah counties and 2048th 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 Utah 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 | January 11, 2021 13:30 | January 14, 2021 02:45 | 2d 13h | 5,028 | 19K |
| 2 | June 5, 2021 21:45 | June 6, 2021 20:30 | 22h 45m | 4,216 | 17K |
| 3 | November 27, 2021 15:00 | November 27, 2021 16:30 | 1h 30m | 3,859 | 966 |
| 4 | August 17, 2021 23:30 | August 27, 2021 05:15 | 9d 5h | 3,645 | 13K |
| 5 | August 30, 2021 15:00 | August 31, 2021 06:30 | 15h 30m | 3,591 | 11K |
| 6 | October 27, 2021 12:30 | October 28, 2021 10:15 | 21h 45m | 3,259 | 19K |
| 7 | July 12, 2021 10:15 | July 12, 2021 22:15 | 12h | 3,218 | 17K |
| 8 | April 5, 2021 14:30 | April 13, 2021 01:45 | 7d 11h | 3,063 | 299K |
| 9 | May 10, 2021 05:45 | May 10, 2021 06:45 | 1h | 2,569 | 1,213 |
| 10 | November 17, 2021 16:15 | November 18, 2021 14:15 | 22h | 2,466 | 1,563 |
Outage episodes by size in 2021: 104 reached 100+ customers, 32 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 Utah 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 |
| City of Springville - (UT) | 2021 | 55 min | 0.05 | - | - |
| Lehi City Corporation | 2021 | 38 min | 0.33 | 38 min | 0.33 |
| Provo City Corp | 2021 | 25 min | 0.53 | 25 min | 0.53 |
| Strawberry Electric Serv Dist | 2021 | 86 min | - | 55 min | - |
| Payson City Corporation | - | - | - | - | - |
| Salem City Corporation - (UT) | - | - | - | - | - |
| Spanish Fork 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 79% of Utah's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 239,289 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. Utah County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Utah 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/utah-county