County annual report · FIPS 27169
2025 Winona County, MN Power Outage Report
In 2025, customers in Winona County, MN went without power for an average of 1.3 hours, a total of 27K customer-hours (Minnesota average 3.7 hours). That ranks 64th worst of 85 Minnesota counties and 2690th of 3,000 nationally.
Compared with MN, the US and 2024
Coverage line is EAGLE-I's share of Minnesota customers tracked each year.
Biggest outages in Winona County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 10, 2025 17:15 | September 10, 2025 18:15 | 1h | 3,400 | 852 |
| 2 | August 12, 2025 15:00 | August 12, 2025 15:30 | 30m | 3,393 | 849 |
| 3 | June 25, 2025 23:45 | June 26, 2025 02:45 | 3h | 3,382 | 3,782 |
| 4 | September 20, 2025 17:00 | September 21, 2025 01:15 | 8h 15m | 1,337 | 5,461 |
| 5 | May 15, 2025 21:30 | May 16, 2025 10:15 | 12h 45m | 517 | 1,225 |
| 6 | June 26, 2025 20:30 | June 26, 2025 23:15 | 2h 45m | 376 | 755 |
| 7 | June 15, 2025 13:00 | June 15, 2025 15:00 | 2h | 309 | 585 |
| 8 | June 4, 2025 15:00 | June 4, 2025 22:15 | 7h 15m | 299 | 177 |
| 9 | October 6, 2025 07:00 | October 6, 2025 17:45 | 10h 45m | 198 | 1,428 |
| 10 | August 20, 2025 12:15 | August 20, 2025 16:00 | 3h 45m | 178 | 367 |
Outage episodes by size in 2025: 16 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 2025, 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 | 2024 | 2.6 hrs | 0.99 | 76 min | 0.80 |
| MiEnergy Cooperative | 2024 | 85 min | 0.70 | 64 min | 0.60 |
| People's Cooperative Services | 2024 | 2.2 hrs | 1.05 | 57 min | 0.59 |
| 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 n/a of Minnesota's customers in 2025; 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, 2025, 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/2025/minnesota/winona-county