County annual report · FIPS 55039
2023 Fond du Lac County, WI Power Outage Report
In 2023, customers in Fond du Lac County, WI went without power for an average of 0.4 hours, a total of 39K customer-hours (Wisconsin average 3.4 hours). That ranks 71st worst of 72 Wisconsin counties and 2833rd of 2,977 nationally.
Compared with WI, the US and 2022
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Fond du Lac County, 2023
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 28, 2023 11:45 | May 28, 2023 12:00 | 15m | 2,156 | 539 |
| 2 | August 21, 2023 12:45 | August 21, 2023 21:00 | 8h 15m | 1,696 | 1,324 |
| 3 | August 4, 2023 01:00 | August 4, 2023 10:00 | 9h | 1,612 | 2,550 |
| 4 | March 13, 2023 15:15 | March 13, 2023 16:30 | 1h 15m | 1,492 | 1,492 |
| 5 | August 12, 2023 02:15 | August 12, 2023 19:15 | 17h | 1,403 | 3,347 |
| 6 | May 31, 2023 19:30 | June 1, 2023 04:00 | 8h 30m | 1,402 | 1,422 |
| 7 | September 3, 2023 12:00 | September 3, 2023 13:00 | 1h | 1,213 | 1,213 |
| 8 | July 26, 2023 12:00 | July 26, 2023 20:30 | 8h 30m | 885 | 3,205 |
| 9 | January 4, 2023 11:00 | January 4, 2023 17:15 | 6h 15m | 799 | 1,382 |
| 10 | June 3, 2023 00:30 | June 3, 2023 01:15 | 45m | 624 | 468 |
Outage episodes by size in 2023: 34 reached 100+ customers, 7 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 Fond du Lac County reported on EIA Form 861 for 2023, 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 | 2023 | 4.5 hrs | 1.04 | 85 min | 0.68 |
| Wisconsin Public Service Corp | 2023 | 2.5 hrs | 0.85 | 74 min | 0.67 |
| City of Plymouth - (WI) | 2023 | 28 min | 0.38 | 0 min | 0.00 |
| Waupun Utilities | 2023 | 10 min | 0.11 | 10 min | 0.11 |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Wisconsin Power & Light 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 n/a of Wisconsin's customers in 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 89,727 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. Fond du Lac County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Fond du Lac County, WI annual power outage report, 2023, 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/2023/wisconsin/fond-du-lac-county