County annual report · FIPS 55045
2018 Green County, WI Power Outage Report
In 2018, customers in Green County, WI went without power for an average of 1.6 hours, a total of 22K customer-hours (Wisconsin average 1.7 hours). That ranks 35th worst of 71 Wisconsin counties and 2031st of 2,798 nationally.
Compared with WI, the US and 2017
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Green County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 18, 2018 17:15 | September 18, 2018 18:00 | 45m | 3,080 | 1,410 |
| 2 | October 25, 2018 14:30 | October 25, 2018 21:00 | 6h 30m | 1,072 | 317 |
| 3 | July 1, 2018 01:30 | July 1, 2018 23:15 | 21h 45m | 843 | 1,479 |
| 4 | September 3, 2018 13:00 | September 3, 2018 17:00 | 4h | 744 | 577 |
| 5 | September 3, 2018 21:15 | September 3, 2018 22:15 | 1h | 743 | 743 |
| 6 | August 6, 2018 05:45 | August 6, 2018 21:30 | 15h 45m | 560 | 1,077 |
| 7 | April 14, 2018 13:00 | April 15, 2018 01:15 | 12h 15m | 543 | 1,836 |
| 8 | July 20, 2018 02:15 | July 20, 2018 08:45 | 6h 30m | 407 | 1,243 |
| 9 | September 19, 2018 22:15 | September 20, 2018 00:00 | 1h 45m | 387 | 677 |
| 10 | October 8, 2018 00:00 | October 8, 2018 02:00 | 2h | 344 | 687 |
Outage episodes by size in 2018: 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 2018, 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 |
|---|---|---|---|---|---|
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Wisconsin Power & Light Co | - | - | - | - | - |
| Scenic Rivers Energy Coop | - | - | - | - | - |
| Rock Energy Cooperative | - | - | - | - | - |
| 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 83% of Wisconsin's customers in 2018; 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, 2018, 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/). https://massoutage.com/reports/2018/wisconsin/green-county