County annual report · FIPS 27133
2017 Rock County, MN Power Outage Report
In 2017, customers in Rock County, MN went without power for an average of 6.0 hours, a total of 30K customer-hours (Minnesota average 1.9 hours). That ranks 2nd worst of 65 Minnesota counties and 851st of 2,786 nationally.
Compared with MN, the US and 2016
Coverage line is EAGLE-I's share of Minnesota customers tracked each year.
Biggest outages in Rock County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 21, 2017 17:00 | April 1, 2017 18:15 | 11d 1h | 4,613 | 1,951 |
| 2 | February 24, 2017 07:15 | February 24, 2017 11:00 | 3h 45m | 1,178 | 2,401 |
| 3 | May 17, 2017 18:45 | June 1, 2017 21:00 | 15d 2h | 900 | 15K |
| 4 | April 2, 2017 11:00 | April 22, 2017 11:15 | 20d | 625 | 3,041 |
| 5 | March 8, 2017 13:45 | March 9, 2017 01:45 | 12h | 356 | 922 |
| 6 | March 7, 2017 05:45 | March 7, 2017 23:30 | 17h 45m | 338 | 1,533 |
| 7 | February 8, 2017 15:15 | February 8, 2017 17:00 | 1h 45m | 211 | 358 |
| 8 | February 5, 2017 21:30 | February 6, 2017 18:45 | 21h 15m | 206 | 325 |
| 9 | February 12, 2017 17:30 | February 12, 2017 20:45 | 3h 15m | 172 | 210 |
| 10 | May 1, 2017 20:45 | May 2, 2017 03:15 | 6h 30m | 126 | 296 |
Outage episodes by size in 2017: 12 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 Rock County reported on EIA Form 861 for 2017, 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 | 2017 | 1.6 hrs | 0.73 | 58 min | 0.61 |
| Sioux Valley SW Elec Coop | 2017 | 2.3 hrs | 1.61 | 88 min | 1.43 |
| Nobles Cooperative Electric | 2017 | 2.3 hrs | 1.18 | 74 min | 0.78 |
| 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 n/a of Minnesota's customers in 2017; 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, 2017, 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/2017/minnesota/rock-county