County annual report · FIPS 49021
2021 Iron County, UT Power Outage Report
In 2021, customers in Iron County, UT went without power for an average of 3.0 hours, a total of 79K customer-hours (Utah average 2.6 hours). That ranks 14th worst of 25 Utah counties and 1851st 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 Iron 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 | May 17, 2021 17:15 | May 17, 2021 22:30 | 5h 15m | 3,441 | 1,726 |
| 2 | September 22, 2021 05:45 | September 22, 2021 07:15 | 1h 30m | 3,391 | 5,087 |
| 3 | July 31, 2021 23:45 | August 2, 2021 06:00 | 1d 6h | 3,376 | 7,303 |
| 4 | January 29, 2021 20:30 | January 30, 2021 13:30 | 17h | 3,352 | 6,250 |
| 5 | July 26, 2021 20:45 | July 27, 2021 00:45 | 4h | 2,761 | 5,986 |
| 6 | April 8, 2021 09:15 | April 8, 2021 11:00 | 1h 45m | 2,265 | 2,615 |
| 7 | April 13, 2021 07:15 | April 13, 2021 09:30 | 2h 15m | 2,229 | 5,015 |
| 8 | May 31, 2021 22:45 | June 1, 2021 02:00 | 3h 15m | 2,060 | 4,125 |
| 9 | March 2, 2021 18:45 | March 2, 2021 23:45 | 5h | 1,663 | 4,390 |
| 10 | March 9, 2021 08:15 | March 9, 2021 10:00 | 1h 45m | 1,663 | 2,910 |
Outage episodes by size in 2021: 48 reached 100+ customers, 13 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 Iron 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 |
| Garkane Energy Coop, Inc | 2021 | 2.4 hrs | - | 2.4 hrs | - |
| Dixie Escalante R E A, Inc | 2021 | 17 min | 0.27 | 17 min | 0.27 |
| Parowan City Corporation | - | - | - | - | - |
| Town of Paragonah - (UT) | - | - | - | - | - |
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 ÷ 26,673 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. Iron County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Iron 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/iron-county