County annual report · FIPS 19081
2018 Hancock County, IA Power Outage Report
In 2018, customers in Hancock County, IA went without power for an average of 5.2 hours, a total of 29K customer-hours (Iowa average 2.2 hours). That ranks 14th worst of 99 Iowa counties and 1008th of 2,798 nationally.
Compared with IA, the US and 2017
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Hancock County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 24, 2018 05:15 | March 25, 2018 02:00 | 20h 45m | 1,826 | 13K |
| 2 | April 14, 2018 02:00 | April 14, 2018 21:15 | 19h 15m | 1,402 | 6,244 |
| 3 | June 5, 2018 19:00 | June 5, 2018 22:00 | 3h | 1,002 | 755 |
| 4 | June 20, 2018 05:30 | June 20, 2018 08:15 | 2h 45m | 1,002 | 2,557 |
| 5 | May 28, 2018 22:00 | May 29, 2018 12:15 | 14h 15m | 472 | 766 |
| 6 | January 11, 2018 12:45 | January 11, 2018 13:45 | 1h | 370 | 370 |
| 7 | March 31, 2018 09:30 | March 31, 2018 14:00 | 4h 30m | 370 | 282 |
| 8 | June 24, 2018 13:00 | June 24, 2018 13:30 | 30m | 328 | 86 |
| 9 | December 5, 2018 15:30 | December 5, 2018 19:15 | 3h 45m | 327 | 265 |
| 10 | October 19, 2018 04:45 | October 19, 2018 09:30 | 4h 45m | 264 | 1,254 |
Outage episodes by size in 2018: 12 reached 100+ customers, 4 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 Hancock County reported on EIA Form 861 for 2018, 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 | 2018 | 1.8 hrs | 1.14 | 1.7 hrs | 1.14 |
| Interstate Power and Light Co | - | - | - | - | - |
| Prairie Energy Coop | - | - | - | - | - |
| Boone Valley Electric Coop | - | - | - | - | - |
| City of Forest City- (IA) | - | - | - | - | - |
| City of Corwith - (IA) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 89% of Iowa's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 5,489 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. Hancock County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Hancock County, IA annual power outage report, 2018, 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/2018/iowa/hancock-county