County annual report · FIPS 19189
2020 Winnebago County, IA Power Outage Report
In 2020, customers in Winnebago County, IA went without power for an average of 6.2 hours, a total of 45K customer-hours (Iowa average 27.4 hours). That ranks 27th worst of 99 Iowa counties and 1200th of 3,019 nationally.
Compared with IA, the US and 2019
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Winnebago County, 2020
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 23, 2020 19:30 | December 25, 2020 14:00 | 1d 18h | 2,187 | 17K |
| 2 | November 10, 2020 17:15 | November 12, 2020 02:00 | 1d 8h | 1,504 | 4,822 |
| 3 | September 6, 2020 07:00 | September 7, 2020 11:45 | 1d 4h | 1,053 | 6,109 |
| 4 | August 22, 2020 07:30 | August 22, 2020 16:00 | 8h 30m | 657 | 1,810 |
| 5 | February 18, 2020 01:15 | February 18, 2020 08:45 | 7h 30m | 583 | 1,545 |
| 6 | January 14, 2020 05:30 | January 14, 2020 15:45 | 10h 15m | 472 | 2,892 |
| 7 | November 25, 2020 03:15 | November 25, 2020 04:15 | 1h | 365 | 365 |
| 8 | August 28, 2020 03:45 | August 28, 2020 11:30 | 7h 45m | 321 | 2,488 |
| 9 | October 22, 2020 07:00 | October 22, 2020 11:30 | 4h 30m | 321 | 1,445 |
| 10 | May 15, 2020 16:00 | May 15, 2020 19:45 | 3h 45m | 272 | 344 |
Outage episodes by size in 2020: 13 reached 100+ customers, 3 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 Winnebago County reported on EIA Form 861 for 2020, 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 |
|---|---|---|---|---|---|
| Heartland Power Coop | 2020 | 2.3 hrs | 1.14 | 2.0 hrs | 1.09 |
| Interstate Power and Light Co | - | - | - | - | - |
| Prairie Energy Coop | - | - | - | - | - |
| City of Forest City- (IA) | - | - | - | - | - |
| City of Lake Mills | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 91% of Iowa's customers in 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 7,213 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. Winnebago County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Winnebago County, IA annual power outage report, 2020, 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/2020/iowa/winnebago-county