County annual report · FIPS 55097
2016 Portage County, WI Power Outage Report
In 2016, customers in Portage County, WI went without power for an average of 2.9 hours, a total of 78K customer-hours (Wisconsin average 1.9 hours). That ranks 16th worst of 70 Wisconsin counties and 1020th 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 Portage 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 | February 28, 2016 10:00 | February 28, 2016 16:30 | 6h 30m | 7,852 | 33K |
| 2 | September 21, 2016 07:30 | September 21, 2016 16:15 | 8h 45m | 3,906 | 11K |
| 3 | May 10, 2016 11:15 | May 10, 2016 14:00 | 2h 45m | 2,037 | 3,768 |
| 4 | June 10, 2016 23:00 | June 12, 2016 04:15 | 1d 5h | 1,649 | 8,659 |
| 5 | April 22, 2016 08:30 | April 22, 2016 09:00 | 30m | 1,449 | 365 |
| 6 | March 13, 2016 12:00 | March 13, 2016 13:00 | 1h | 1,445 | 1,445 |
| 7 | March 14, 2016 15:45 | March 14, 2016 16:00 | 15m | 1,434 | 359 |
| 8 | November 23, 2016 11:15 | November 23, 2016 15:15 | 4h | 496 | 954 |
| 9 | April 16, 2016 15:30 | April 16, 2016 22:15 | 6h 45m | 413 | 348 |
| 10 | December 25, 2016 23:45 | December 26, 2016 10:45 | 11h | 388 | 2,346 |
Outage episodes by size in 2016: 30 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 Portage 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 Public Service Corp | 2016 | 2.7 hrs | 0.77 | 78 min | 0.59 |
| Adams-Columbia Electric Coop | 2016 | 2.5 hrs | 0.98 | 1.9 hrs | 0.85 |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Wisconsin Power & Light Co | - | - | - | - | - |
| Central Wisconsin Elec Coop | - | - | - | - | - |
| Consolidated Water Power Co | - | - | - | - | - |
| Wisconsin Rapids W W & L 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 ÷ 27,174 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. Portage County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Portage 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/portage-county