County annual report · FIPS 55047
2021 Green Lake County, WI Power Outage Report
In 2021, customers in Green Lake County, WI went without power for an average of 4.6 hours, a total of 76K customer-hours (Wisconsin average 4.7 hours). That ranks 21st worst of 72 Wisconsin counties and 1412th of 2,974 nationally.
Compared with WI, the US and 2020
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Green Lake County, 2021
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 29, 2021 05:00 | July 31, 2021 02:00 | 1d 21h | 6,350 | 53K |
| 2 | February 5, 2021 15:45 | February 5, 2021 19:45 | 4h | 2,846 | 2,137 |
| 3 | July 27, 2021 13:30 | July 27, 2021 23:45 | 10h 15m | 2,346 | 1,234 |
| 4 | September 17, 2021 11:15 | September 17, 2021 13:00 | 1h 45m | 2,291 | 3,765 |
| 5 | April 21, 2021 18:15 | April 21, 2021 19:45 | 1h 30m | 1,113 | 934 |
| 6 | May 5, 2021 19:30 | May 5, 2021 21:30 | 2h | 1,000 | 751 |
| 7 | June 26, 2021 15:00 | June 26, 2021 16:45 | 1h 45m | 597 | 1,044 |
| 8 | December 16, 2021 05:15 | December 17, 2021 07:45 | 1d 2h | 507 | 2,385 |
| 9 | June 18, 2021 02:15 | June 18, 2021 16:15 | 14h | 499 | 1,498 |
| 10 | November 11, 2021 16:00 | November 11, 2021 20:45 | 4h 45m | 413 | 211 |
Outage episodes by size in 2021: 26 reached 100+ customers, 6 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 Green Lake County reported on EIA Form 861 for 2021, 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 | 2021 | 1.7 hrs | 0.74 | 1.7 hrs | 0.74 |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Wisconsin Power & Light Co | - | - | - | - | - |
| City of Princeton - (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 85% of Wisconsin's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 16,499 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. Green Lake County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Green Lake County, WI annual power outage report, 2021, 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/2021/wisconsin/green-lake-county