County annual report · FIPS 55007
2021 Bayfield County, WI Power Outage Report
In 2021, customers in Bayfield County, WI went without power for an average of 2.3 hours, a total of 15K customer-hours (Wisconsin average 4.7 hours). That ranks 40th worst of 72 Wisconsin counties and 2097th 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 Bayfield 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 | June 24, 2021 08:00 | June 24, 2021 10:15 | 2h 15m | 752 | 1,692 |
| 2 | July 27, 2021 01:15 | July 27, 2021 23:45 | 22h 30m | 522 | 3,067 |
| 3 | January 5, 2021 15:15 | January 5, 2021 16:45 | 1h 30m | 501 | 752 |
| 4 | January 6, 2021 15:15 | January 6, 2021 16:45 | 1h 30m | 392 | 588 |
| 5 | June 1, 2021 19:45 | June 1, 2021 23:15 | 3h 30m | 213 | 287 |
| 6 | June 4, 2021 15:30 | June 4, 2021 16:00 | 30m | 213 | 73 |
| 7 | September 7, 2021 23:15 | September 8, 2021 06:30 | 7h 15m | 199 | 382 |
| 8 | March 29, 2021 19:45 | March 29, 2021 22:15 | 2h 30m | 198 | 413 |
| 9 | September 15, 2021 17:15 | September 15, 2021 19:30 | 2h 15m | 196 | 386 |
| 10 | July 7, 2021 22:45 | July 8, 2021 18:15 | 19h 30m | 156 | 2,009 |
Outage episodes by size in 2021: 15 reached 100+ customers, 0 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 Bayfield 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 |
| Bayfield Electric Coop, Inc | - | - | - | - | - |
| Dahlberg Light & Power Co | - | - | - | - | - |
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 ÷ 6,473 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. Bayfield County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Bayfield 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/bayfield-county