County annual report · FIPS 55045
2023 Green County, WI Power Outage Report
In 2023, customers in Green County, WI went without power for an average of 1.7 hours, a total of 23K customer-hours (Wisconsin average 3.4 hours). That ranks 41st worst of 72 Wisconsin counties and 2401st 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 Green 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 | June 21, 2023 12:15 | June 21, 2023 15:45 | 3h 30m | 1,080 | 2,154 |
| 2 | June 21, 2023 16:45 | June 21, 2023 19:45 | 3h | 1,046 | 1,326 |
| 3 | September 21, 2023 01:15 | September 21, 2023 03:30 | 2h 15m | 861 | 1,907 |
| 4 | December 15, 2023 14:45 | December 15, 2023 18:45 | 4h | 765 | 386 |
| 5 | December 29, 2023 08:00 | December 29, 2023 14:45 | 6h 45m | 687 | 1,370 |
| 6 | October 6, 2023 13:00 | October 6, 2023 16:00 | 3h | 608 | 1,243 |
| 7 | February 17, 2023 11:45 | February 17, 2023 13:15 | 1h 30m | 594 | 891 |
| 8 | January 15, 2023 16:15 | January 15, 2023 18:15 | 2h | 593 | 952 |
| 9 | June 29, 2023 14:30 | June 29, 2023 19:00 | 4h 30m | 559 | 330 |
| 10 | June 5, 2023 12:45 | June 5, 2023 13:30 | 45m | 549 | 412 |
Outage episodes by size in 2023: 25 reached 100+ customers, 2 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 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 |
|---|---|---|---|---|---|
| Rock Energy Cooperative | 2023 | 40 min | 0.38 | 22 min | 0.22 |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Wisconsin Power & Light Co | - | - | - | - | - |
| Scenic Rivers Energy Coop | - | - | - | - | - |
| Brodhead Water & Lighting Comm | - | - | - | - | - |
| City of Evansville | - | - | - | - | - |
| Village of New Glarus - (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 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 13,290 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 County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Green 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/green-county