County annual report · FIPS 27133
2016 Rock County, MN Power Outage Report
In 2016, customers in Rock County, MN went without power for an average of 19.0 hours, a total of 94K customer-hours (Minnesota average 3.2 hours). That ranks 6th worst of 63 Minnesota counties and 157th of 2,391 nationally.
Compared with MN, the US and 2015
Coverage line is EAGLE-I's share of Minnesota customers tracked each year.
Biggest outages in Rock County, 2016
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 19, 2016 14:15 | October 19, 2016 19:30 | 5h 15m | 4,417 | 2,305 |
| 2 | July 6, 2016 06:00 | July 7, 2016 01:15 | 19h 15m | 3,924 | 14K |
| 3 | June 15, 2016 03:00 | June 16, 2016 20:45 | 1d 17h | 3,677 | 17K |
| 4 | August 19, 2016 02:45 | August 20, 2016 00:30 | 21h 45m | 2,197 | 14K |
| 5 | July 21, 2016 23:30 | July 22, 2016 16:00 | 16h 30m | 1,748 | 4,029 |
| 6 | March 22, 2016 19:30 | March 23, 2016 00:00 | 4h 30m | 1,666 | 1,670 |
| 7 | September 6, 2016 02:30 | September 6, 2016 04:30 | 2h | 1,452 | 1,089 |
| 8 | June 26, 2016 11:45 | June 26, 2016 18:45 | 7h | 1,448 | 2,170 |
| 9 | May 25, 2016 23:45 | May 26, 2016 00:45 | 1h | 1,176 | 1,159 |
| 10 | May 26, 2016 17:45 | May 26, 2016 22:00 | 4h 15m | 1,171 | 302 |
Outage episodes by size in 2016: 53 reached 100+ customers, 11 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 2016, 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 | 2016 | 2.3 hrs | 0.97 | 86 min | 0.84 |
| Sioux Valley SW Elec Coop | 2016 | 2.3 hrs | 1.69 | 2.3 hrs | 1.69 |
| Nobles Cooperative Electric | 2016 | 2.5 hrs | 1.90 | 65 min | 0.70 |
| 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 2016; 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, 2016, 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/2016/minnesota/rock-county