County annual report · FIPS 55025
2016 Dane County, WI Power Outage Report
In 2016, customers in Dane County, WI went without power for an average of 0.9 hours, a total of 271K customer-hours (Wisconsin average 1.9 hours). That ranks 45th worst of 70 Wisconsin counties and 1831st of 2,391 nationally.
Compared with WI, the US and 2015
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Dane County, 2016
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 6, 2016 05:30 | July 8, 2016 03:30 | 1d 22h | 16,821 | 124K |
| 2 | July 21, 2016 20:30 | July 23, 2016 09:00 | 1d 12h | 7,593 | 58K |
| 3 | September 19, 2016 21:15 | September 20, 2016 18:00 | 20h 45m | 4,022 | 5,740 |
| 4 | October 7, 2016 05:30 | October 7, 2016 18:30 | 13h | 3,086 | 9,554 |
| 5 | April 18, 2016 13:45 | April 18, 2016 15:30 | 1h 45m | 2,855 | 715 |
| 6 | March 16, 2016 02:30 | March 17, 2016 05:00 | 1d 2h | 2,234 | 3,164 |
| 7 | June 3, 2016 10:15 | June 3, 2016 16:15 | 6h | 1,935 | 965 |
| 8 | June 23, 2016 10:45 | June 23, 2016 16:30 | 5h 45m | 1,833 | 611 |
| 9 | April 19, 2016 00:15 | April 19, 2016 03:00 | 2h 45m | 1,676 | 623 |
| 10 | March 1, 2016 16:30 | March 1, 2016 23:30 | 7h | 1,626 | 867 |
Outage episodes by size in 2016: 79 reached 100+ customers, 20 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 2016, 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 | 2016 | 2.6 hrs | 0.82 | 1.7 hrs | 0.66 |
| Adams-Columbia Electric Coop | 2016 | 2.5 hrs | 0.98 | 1.9 hrs | 0.85 |
| City of Stoughton - (WI) | 2016 | 83 min | 1.03 | 31 min | 0.42 |
| Madison Gas & Electric Co | 2016 | 1.8 hrs | 0.63 | 34 min | 0.43 |
| Sun Prairie Utilities | 2016 | 20 min | 0.36 | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Wisconsin Power & Light Co | - | - | - | - | - |
| Rock Energy Cooperative | - | - | - | - | - |
| Village of Black Earth - (WI) | - | - | - | - | - |
| Village of Mazomanie - (WI) | - | - | - | - | - |
| Village of Mt. Horeb - (WI) | - | - | - | - | - |
| Village of Waunakee - (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 2016; 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, 2016, 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/2016/wisconsin/dane-county