County annual report · FIPS 49021
2018 Iron County, UT Power Outage Report
In 2018, customers in Iron County, UT went without power for an average of 2.8 hours, a total of 74K customer-hours (Utah average 1.9 hours). That ranks 14th worst of 26 Utah counties and 1583rd 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 Iron 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 | February 10, 2018 22:45 | February 11, 2018 15:30 | 16h 45m | 4,688 | 10K |
| 2 | November 30, 2018 01:30 | November 30, 2018 06:15 | 4h 45m | 2,977 | 11K |
| 3 | April 3, 2018 06:30 | April 3, 2018 12:15 | 5h 45m | 2,316 | 12K |
| 4 | October 21, 2018 11:00 | October 21, 2018 22:15 | 11h 15m | 1,245 | 5,747 |
| 5 | April 30, 2018 10:15 | May 1, 2018 02:15 | 16h | 878 | 2,839 |
| 6 | May 3, 2018 01:30 | May 3, 2018 04:15 | 2h 45m | 875 | 879 |
| 7 | February 20, 2018 03:15 | February 20, 2018 12:15 | 9h | 860 | 4,519 |
| 8 | March 24, 2018 13:15 | March 24, 2018 18:30 | 5h 15m | 855 | 2,260 |
| 9 | March 9, 2018 16:15 | March 9, 2018 21:15 | 5h | 852 | 2,344 |
| 10 | February 19, 2018 16:30 | February 19, 2018 21:15 | 4h 45m | 851 | 1,287 |
Outage episodes by size in 2018: 29 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 Iron 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 |
| Garkane Energy Coop, Inc | 2018 | 6.5 hrs | - | 6.5 hrs | - |
| Dixie Escalante R E A, Inc | 2018 | 44 min | 0.65 | 44 min | 0.65 |
| 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 80% of Utah's customers in 2018; 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, 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/iron-county