County annual report · FIPS 19189
2017 Winnebago County, IA Power Outage Report
In 2017, customers in Winnebago County, IA went without power for an average of 0.9 hours, a total of 6,716 customer-hours (Iowa average 2.0 hours). That ranks 81st worst of 99 Iowa counties and 2070th of 2,786 nationally.
Compared with IA, the US and 2016
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Winnebago County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 10, 2017 05:00 | July 10, 2017 09:15 | 4h 15m | 672 | 1,566 |
| 2 | November 6, 2017 08:45 | November 6, 2017 12:45 | 4h | 599 | 2,327 |
| 3 | September 1, 2017 21:00 | September 1, 2017 22:15 | 1h 15m | 349 | 401 |
| 4 | July 10, 2017 10:00 | July 10, 2017 19:00 | 9h | 273 | 289 |
| 5 | July 19, 2017 21:45 | July 20, 2017 17:15 | 19h 30m | 105 | 272 |
| 6 | January 15, 2017 19:00 | January 15, 2017 21:00 | 2h | 103 | 181 |
| 7 | May 17, 2017 03:00 | May 17, 2017 07:15 | 4h 15m | 67 | 154 |
| 8 | December 5, 2017 02:30 | December 5, 2017 11:30 | 9h | 60 | 154 |
| 9 | December 4, 2017 22:15 | December 5, 2017 00:30 | 2h 15m | 57 | 128 |
| 10 | June 27, 2017 04:15 | June 27, 2017 07:00 | 2h 45m | 55 | 111 |
Outage episodes by size in 2017: 6 reached 100+ customers, 0 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 2017, 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 | 2017 | 1.8 hrs | 0.73 | 61 min | 0.58 |
| 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 n/a of Iowa's customers in 2017; 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, 2017, 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/2017/iowa/winnebago-county