County annual report · FIPS 55025
2024 Dane County, WI Power Outage Report
In 2024, customers in Dane County, WI went without power for an average of 3.3 hours, a total of 980K customer-hours (Wisconsin average 4.6 hours). That ranks 35th worst of 72 Wisconsin counties and 2015th of 2,990 nationally.
Compared with WI, the US and 2023
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Dane County, 2024
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 22, 2024 00:45 | May 24, 2024 00:15 | 1d 23h | 46,973 | 666K |
| 2 | October 29, 2024 09:45 | October 30, 2024 21:15 | 1d 11h | 5,508 | 10K |
| 3 | August 9, 2024 22:00 | August 10, 2024 23:00 | 1d 1h | 4,769 | 22K |
| 4 | June 22, 2024 04:45 | June 23, 2024 23:15 | 1d 18h | 4,247 | 14K |
| 5 | May 10, 2024 11:15 | May 11, 2024 09:45 | 22h 30m | 3,996 | 5,008 |
| 6 | June 27, 2024 13:00 | July 26, 2024 20:30 | 29d 7h | 3,766 | 40K |
| 7 | May 24, 2024 09:15 | May 27, 2024 07:45 | 2d 22h | 3,427 | 54K |
| 8 | February 8, 2024 23:30 | February 14, 2024 19:30 | 5d 20h | 2,837 | 3,828 |
| 9 | November 2, 2024 04:45 | January 1, 2025 00:00 | 59d 19h | 2,823 | 42K |
| 10 | September 21, 2024 20:00 | October 8, 2024 00:00 | 16d 4h | 2,481 | 16K |
Outage episodes by size in 2024: 91 reached 100+ customers, 26 reached 1,000+ customers, 1 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 Dane County reported on EIA Form 861 for 2024, 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 | 2024 | 4.9 hrs | 1.04 | 1.8 hrs | 0.74 |
| Adams-Columbia Electric Coop | 2024 | 2.3 hrs | 1.15 | 2.3 hrs | 1.15 |
| Rock Energy Cooperative | 2024 | 53 min | 0.48 | 27 min | 0.36 |
| City of Stoughton - (WI) | 2024 | 56 min | 0.57 | 37 min | 0.44 |
| Madison Gas & Electric Co | 2024 | 4.6 hrs | 0.59 | 42 min | 0.34 |
| Sun Prairie Utilities | 2024 | 34 min | 1.01 | 34 min | 1.01 |
| Village of Waunakee - (WI) | 2024 | 40 min | 0.28 | 40 min | 0.28 |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Wisconsin Power & Light Co | - | - | - | - | - |
| Village of Black Earth - (WI) | - | - | - | - | - |
| Village of Mazomanie - (WI) | - | - | - | - | - |
| Village of Mt. Horeb - (WI) | - | - | - | - | - |
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 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 295,516 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. Dane County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Dane County, WI annual power outage report, 2024, 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/2024/wisconsin/dane-county