County annual report · FIPS 27133
2020 Rock County, MN Power Outage Report
In 2020, customers in Rock County, MN went without power for an average of 1.3 hours, a total of 6,450 customer-hours (Minnesota average 2.2 hours). That ranks 44th worst of 81 Minnesota counties and 2546th of 3,019 nationally.
Compared with MN, the US and 2019
Coverage line is EAGLE-I's share of Minnesota customers tracked each year.
Biggest outages in Rock County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 2, 2020 06:30 | April 2, 2020 08:30 | 2h | 820 | 1,239 |
| 2 | October 27, 2020 15:15 | October 27, 2020 18:00 | 2h 45m | 571 | 1,430 |
| 3 | October 22, 2020 13:00 | October 22, 2020 15:30 | 2h 30m | 125 | 222 |
| 4 | December 18, 2020 21:15 | December 18, 2020 21:30 | 15m | 125 | 31 |
| 5 | January 1, 2020 00:00 | January 18, 2020 14:00 | 17d 14h | 115 | 1,190 |
| 6 | October 22, 2020 19:00 | October 22, 2020 20:00 | 1h | 62 | 52 |
| 7 | August 28, 2020 19:15 | August 28, 2020 21:15 | 2h | 59 | 67 |
| 8 | February 14, 2020 17:30 | March 12, 2020 16:00 | 26d 22h | 50 | 718 |
| 9 | January 20, 2020 20:30 | January 20, 2020 20:45 | 15m | 31 | 8 |
| 10 | December 21, 2020 15:00 | December 21, 2020 16:00 | 1h | 28 | 28 |
Outage episodes by size in 2020: 5 reached 100+ customers, 0 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 2020, 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 | 2020 | 1.7 hrs | 0.84 | 68 min | 0.71 |
| Sioux Valley SW Elec Coop | 2020 | 1.5 hrs | 2.73 | 83 min | 2.32 |
| 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 2020; 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, 2020, 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/2020/minnesota/rock-county