County annual report · FIPS 55141
2021 Wood County, WI Power Outage Report
In 2021, customers in Wood County, WI went without power for an average of 2.2 hours, a total of 101K customer-hours (Wisconsin average 4.7 hours). That ranks 41st worst of 72 Wisconsin counties and 2162nd 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 Wood 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 | December 16, 2021 04:15 | December 18, 2021 17:15 | 2d 13h | 5,616 | 75K |
| 2 | February 24, 2021 17:45 | February 24, 2021 18:00 | 15m | 1,435 | 359 |
| 3 | August 11, 2021 19:15 | August 12, 2021 00:15 | 5h | 1,162 | 1,275 |
| 4 | March 24, 2021 12:15 | March 24, 2021 13:45 | 1h 30m | 1,039 | 815 |
| 5 | June 24, 2021 23:15 | June 25, 2021 20:45 | 21h 30m | 1,013 | 7,809 |
| 6 | June 27, 2021 02:30 | June 27, 2021 07:15 | 4h 45m | 984 | 1,945 |
| 7 | August 29, 2021 03:15 | August 29, 2021 11:45 | 8h 30m | 825 | 1,247 |
| 8 | August 27, 2021 23:00 | August 28, 2021 06:45 | 7h 45m | 656 | 849 |
| 9 | September 20, 2021 14:45 | September 20, 2021 15:00 | 15m | 489 | 122 |
| 10 | July 31, 2021 20:15 | August 1, 2021 01:45 | 5h 30m | 404 | 1,121 |
Outage episodes by size in 2021: 22 reached 100+ customers, 5 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 Wood 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 |
| Oakdale Electric Coop | 2021 | 1.8 hrs | 0.93 | 63 min | 0.72 |
| City of Marshfield - (WI) | 2021 | 26 min | 0.26 | 13 min | 0.16 |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Wisconsin Power & Light Co | - | - | - | - | - |
| Clark Electric Coop - (WI) | - | - | - | - | - |
| 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 85% of Wisconsin's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 46,818 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. Wood County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Wood 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/wood-county