County annual report · FIPS 27133
2022 Rock County, MN Power Outage Report
In 2022, customers in Rock County, MN went without power for an average of 4.2 hours, a total of 21K customer-hours (Minnesota average 4.0 hours). That ranks 30th worst of 81 Minnesota counties and 1608th of 2,976 nationally.
Compared with MN, the US and 2021
Coverage line is EAGLE-I's share of Minnesota customers tracked each year.
Biggest outages in Rock County, 2022
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 11, 2022 15:15 | May 16, 2022 14:30 | 4d 23h | 1,050 | 9,310 |
| 2 | May 10, 2022 22:00 | May 11, 2022 12:45 | 14h 45m | 824 | 1,686 |
| 3 | June 21, 2022 02:00 | June 21, 2022 09:00 | 7h | 702 | 1,197 |
| 4 | May 30, 2022 07:45 | June 9, 2022 22:00 | 10d 14h | 699 | 3,378 |
| 5 | December 26, 2022 21:30 | December 26, 2022 23:00 | 1h 30m | 653 | 693 |
| 6 | February 22, 2022 15:30 | February 22, 2022 20:45 | 5h 15m | 108 | 436 |
| 7 | May 3, 2022 14:15 | May 5, 2022 13:15 | 1d 23h | 85 | 1,656 |
| 8 | October 3, 2022 07:15 | October 3, 2022 11:15 | 4h | 65 | 84 |
| 9 | July 27, 2022 06:45 | July 27, 2022 07:45 | 1h | 64 | 64 |
| 10 | November 22, 2022 01:00 | November 22, 2022 02:15 | 1h 15m | 58 | 73 |
Outage episodes by size in 2022: 6 reached 100+ customers, 1 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 Rock County reported on EIA Form 861 for 2022, 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 |
|---|---|---|---|---|---|
| Northern States Power Co - Minnesota | 2022 | 4.0 hrs | 1.08 | 72 min | 0.72 |
| Sioux Valley SW Elec Coop | 2022 | 11.5 hrs | 2.53 | 2.2 hrs | 1.66 |
| Nobles Cooperative Electric | 2018 | 4.0 hrs | 1.09 | 4.0 hrs | 1.09 |
| City of Luverne - (MN) | - | - | - | - | - |
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 Minnesota's customers in 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 4,958 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. Rock County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Rock County, MN annual power outage report, 2022, 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/2022/minnesota/rock-county