County annual report · FIPS 55055
2016 Jefferson County, WI Power Outage Report
In 2016, customers in Jefferson County, WI went without power for an average of 1.4 hours, a total of 50K customer-hours (Wisconsin average 1.9 hours). That ranks 30th worst of 70 Wisconsin counties and 1562nd 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 Jefferson 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 | June 26, 2016 05:45 | June 27, 2016 02:15 | 20h 30m | 2,518 | 10K |
| 2 | March 29, 2016 11:30 | March 29, 2016 14:30 | 3h | 1,798 | 1,367 |
| 3 | June 15, 2016 05:00 | June 15, 2016 14:15 | 9h 15m | 1,787 | 875 |
| 4 | August 16, 2016 19:45 | August 16, 2016 20:00 | 15m | 1,762 | 441 |
| 5 | November 12, 2016 08:30 | November 12, 2016 12:15 | 3h 45m | 1,586 | 2,008 |
| 6 | June 6, 2016 00:00 | June 7, 2016 02:00 | 1d 2h | 1,473 | 8,956 |
| 7 | August 18, 2016 10:15 | August 18, 2016 19:00 | 8h 45m | 1,011 | 1,381 |
| 8 | July 6, 2016 06:15 | July 6, 2016 19:45 | 13h 30m | 961 | 2,206 |
| 9 | March 18, 2016 12:15 | March 18, 2016 15:45 | 3h 30m | 855 | 1,501 |
| 10 | March 16, 2016 12:45 | March 17, 2016 05:30 | 16h 45m | 809 | 928 |
Outage episodes by size in 2016: 35 reached 100+ customers, 7 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 Jefferson 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 |
| Wisconsin Power & Light Co | - | - | - | - | - |
| Jefferson Utilities | - | - | - | - | - |
| Lake Mills Light & Water | - | - | - | - | - |
| Waterloo Light & Water Comm | - | - | - | - | - |
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 ÷ 34,512 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. Jefferson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Jefferson 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/jefferson-county