County annual report · FIPS 55033
2021 Dunn County, WI Power Outage Report
In 2021, customers in Dunn County, WI went without power for an average of 0.8 hours, a total of 20K customer-hours (Wisconsin average 4.7 hours). That ranks 65th worst of 72 Wisconsin counties and 2726th of 2,974 nationally.
Compared with WI, the US and 2020
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Dunn 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 | November 23, 2021 15:15 | November 23, 2021 17:15 | 2h | 2,653 | 1,281 |
| 2 | June 11, 2021 17:45 | June 13, 2021 00:15 | 1d 6h | 1,701 | 4,759 |
| 3 | June 20, 2021 21:15 | June 21, 2021 04:30 | 7h 15m | 1,107 | 983 |
| 4 | November 15, 2021 12:15 | November 15, 2021 14:00 | 1h 45m | 869 | 783 |
| 5 | December 6, 2021 15:15 | December 6, 2021 20:45 | 5h 30m | 386 | 776 |
| 6 | August 8, 2021 09:45 | August 8, 2021 16:30 | 6h 45m | 381 | 551 |
| 7 | July 22, 2021 17:00 | July 22, 2021 19:00 | 2h | 377 | 570 |
| 8 | November 12, 2021 08:15 | November 12, 2021 10:45 | 2h 30m | 367 | 826 |
| 9 | February 24, 2021 14:15 | February 24, 2021 15:30 | 1h 15m | 305 | 153 |
| 10 | September 13, 2021 20:15 | September 13, 2021 22:45 | 2h 30m | 279 | 411 |
Outage episodes by size in 2021: 19 reached 100+ customers, 3 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 Dunn 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 | 2021 | 6.7 hrs | 1.60 | 2.2 hrs | 1.10 |
| Barron Electric Coop | 2021 | 2.7 hrs | 1.32 | 2.7 hrs | 1.32 |
| Dunn County Electric Coop | 2021 | 2.1 hrs | 0.92 | 76 min | 0.63 |
| Polk-Burnett Electric Coop | 2021 | 54 min | 0.70 | 43 min | 0.63 |
| St Croix Electric Coop | 2018 | 1.8 hrs | 0.69 | 1.7 hrs | 0.68 |
| Eau Claire Electric Coop | - | - | - | - | - |
| Chippewa Valley Electric Coop | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 85% of Wisconsin's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 24,888 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. Dunn County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Dunn County, WI 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/wisconsin/dunn-county