County annual report · FIPS 55037
2020 Florence County, WI Power Outage Report
In 2020, customers in Florence County, WI went without power for an average of 8.1 hours, a total of 23K customer-hours (Wisconsin average 1.8 hours). That ranks 3rd worst of 72 Wisconsin counties and 949th of 3,019 nationally.
Compared with WI, the US and 2019
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Florence County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 16, 2020 11:00 | May 16, 2020 11:15 | 15m | 4,280 | 1,070 |
| 2 | October 21, 2020 03:00 | October 21, 2020 20:30 | 17h 30m | 1,140 | 3,115 |
| 3 | May 14, 2020 16:45 | May 14, 2020 22:30 | 5h 45m | 985 | 4,603 |
| 4 | March 26, 2020 08:00 | March 26, 2020 08:15 | 15m | 535 | 134 |
| 5 | May 27, 2020 19:00 | May 27, 2020 21:30 | 2h 30m | 389 | 973 |
| 6 | August 10, 2020 02:45 | August 11, 2020 08:30 | 1d 5h | 389 | 8,080 |
| 7 | May 1, 2020 09:15 | May 1, 2020 13:00 | 3h 45m | 331 | 967 |
| 8 | November 1, 2020 06:30 | November 2, 2020 01:30 | 19h | 194 | 635 |
| 9 | August 2, 2020 16:30 | August 2, 2020 17:30 | 1h | 188 | 143 |
| 10 | July 9, 2020 06:00 | July 9, 2020 14:30 | 8h 30m | 140 | 421 |
Outage episodes by size in 2020: 13 reached 100+ customers, 2 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 Florence County reported on EIA Form 861 for 2020, 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 |
|---|---|---|---|---|---|
| Wisconsin Electric Power Co | 2020 | 2.3 hrs | 0.87 | 1.6 hrs | 0.70 |
| Wisconsin Public Service Corp | 2020 | 1.7 hrs | 0.94 | 1.7 hrs | 0.94 |
| Florence Utility Comm | 2020 | 2.4 hrs | 1.19 | 59 min | 0.66 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 84% of Wisconsin's customers in 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 2,842 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. Florence County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Florence County, WI annual power outage report, 2020, 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/2020/wisconsin/florence-county