County annual report · FIPS 26071
2023 Iron County, MI Power Outage Report
In 2023, customers in Iron County, MI went without power for an average of 8.4 hours, a total of 50K customer-hours (Michigan average 26.5 hours). That ranks 39th worst of 83 Michigan counties and 978th of 2,977 nationally.
Compared with MI, the US and 2022
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Iron 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 | July 28, 2023 00:15 | July 29, 2023 00:30 | 1d | 1,403 | 24K |
| 2 | June 30, 2023 04:15 | June 30, 2023 08:45 | 4h 30m | 1,199 | 3,372 |
| 3 | August 29, 2023 14:30 | August 29, 2023 16:15 | 1h 45m | 881 | 1,542 |
| 4 | April 30, 2023 06:15 | May 1, 2023 07:15 | 1d 1h | 818 | 6,164 |
| 5 | May 2, 2023 21:00 | May 3, 2023 02:00 | 5h | 802 | 1,802 |
| 6 | June 24, 2023 23:00 | June 25, 2023 02:00 | 3h | 515 | 1,288 |
| 7 | November 16, 2023 17:45 | November 17, 2023 00:30 | 6h 45m | 443 | 1,768 |
| 8 | November 17, 2023 01:45 | November 17, 2023 11:15 | 9h 30m | 371 | 1,548 |
| 9 | July 17, 2023 04:45 | July 17, 2023 06:15 | 1h 30m | 337 | 422 |
| 10 | July 16, 2023 01:30 | July 16, 2023 23:30 | 22h | 218 | 1,398 |
Outage episodes by size in 2023: 20 reached 100+ customers, 2 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 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 |
|---|---|---|---|---|---|
| Upper Peninsula Power Company | 2023 | 7.1 hrs | 1.58 | 2.3 hrs | 0.98 |
| Upper Michigan Energy Resources Corp. | 2023 | 6.1 hrs | 1.32 | 3.1 hrs | 1.01 |
| City of Crystal Falls | - | - | - | - | - |
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 Michigan's customers in 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 5,890 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 2015–2025.
Cite this report
MassOutage (massoutage.com), Iron County, MI 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/michigan/iron-county