County annual report · FIPS 27169
2021 Winona County, MN Power Outage Report
In 2021, customers in Winona County, MN went without power for an average of 2.6 hours, a total of 56K customer-hours (Minnesota average 2.1 hours). That ranks 18th worst of 79 Minnesota counties and 1995th of 2,974 nationally.
Compared with MN, the US and 2020
Coverage line is EAGLE-I's share of Minnesota customers tracked each year.
Biggest outages in Winona County, 2021
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 26, 2021 04:45 | July 26, 2021 10:30 | 5h 45m | 3,264 | 1,221 |
| 2 | December 16, 2021 02:30 | December 18, 2021 15:45 | 2d 13h | 2,817 | 32K |
| 3 | July 6, 2021 22:30 | July 7, 2021 10:00 | 11h 30m | 2,793 | 4,076 |
| 4 | July 21, 2021 14:00 | July 21, 2021 17:15 | 3h 15m | 1,254 | 1,167 |
| 5 | January 22, 2021 06:15 | January 22, 2021 08:45 | 2h 30m | 931 | 2,277 |
| 6 | July 29, 2021 04:30 | July 29, 2021 18:45 | 14h 15m | 576 | 3,688 |
| 7 | April 11, 2021 01:30 | April 11, 2021 03:15 | 1h 45m | 476 | 595 |
| 8 | June 17, 2021 10:15 | June 17, 2021 15:15 | 5h | 369 | 848 |
| 9 | September 28, 2021 15:30 | September 28, 2021 16:45 | 1h 15m | 331 | 167 |
| 10 | December 12, 2021 23:45 | December 13, 2021 08:30 | 8h 45m | 310 | 653 |
Outage episodes by size in 2021: 21 reached 100+ customers, 4 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 Winona County reported on EIA Form 861 for 2021, 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 | 2021 | 1.8 hrs | 0.82 | 77 min | 0.74 |
| MiEnergy Cooperative | 2021 | 2.5 hrs | 1.30 | 83 min | 0.85 |
| People's Cooperative Services | 2021 | 7.8 hrs | 1.25 | 60 min | 0.56 |
| City of St Charles - (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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 21,651 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. Winona County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Winona County, MN annual power outage report, 2021, 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/2021/minnesota/winona-county