County annual report · FIPS 55001
2025 Adams County, WI Power Outage Report
In 2025, customers in Adams County, WI went without power for an average of 2.1 hours, a total of 44K customer-hours (Wisconsin average 3.9 hours). That ranks 41st worst of 72 Wisconsin counties and 2376th of 3,000 nationally.
Compared with WI, the US and 2024
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Adams County, 2025
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 15, 2025 16:00 | July 15, 2025 18:15 | 2h 15m | 2,455 | 616 |
| 2 | May 3, 2025 08:15 | May 3, 2025 10:30 | 2h 15m | 1,616 | 2,755 |
| 3 | September 13, 2025 08:00 | September 13, 2025 11:45 | 3h 45m | 1,520 | 3,041 |
| 4 | January 21, 2025 11:45 | January 21, 2025 15:45 | 4h | 1,010 | 2,524 |
| 5 | June 26, 2025 02:15 | June 26, 2025 11:30 | 9h 15m | 914 | 1,632 |
| 6 | May 2, 2025 14:15 | May 2, 2025 21:00 | 6h 45m | 845 | 2,014 |
| 7 | August 16, 2025 02:00 | August 16, 2025 07:45 | 5h 45m | 773 | 1,582 |
| 8 | August 16, 2025 16:00 | August 18, 2025 19:30 | 2d 3h | 743 | 10K |
| 9 | April 11, 2025 19:45 | April 11, 2025 22:15 | 2h 30m | 730 | 914 |
| 10 | April 11, 2025 23:45 | April 12, 2025 02:00 | 2h 15m | 727 | 552 |
Outage episodes by size in 2025: 31 reached 100+ customers, 4 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 Adams County reported on EIA Form 861 for 2025, 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 |
|---|---|---|---|---|---|
| Adams-Columbia Electric Coop | 2024 | 2.3 hrs | 1.15 | 2.3 hrs | 1.15 |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Wisconsin Power & Light Co | - | - | - | - | - |
| Pioneer Power and Light Co | - | - | - | - | - |
| Wisconsin Dells Electric Util | - | - | - | - | - |
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 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 20,787 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. Adams County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Adams County, WI annual power outage report, 2025, 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/2025/wisconsin/adams-county