County annual report · FIPS 19037
2018 Chickasaw County, IA Power Outage Report
In 2018, customers in Chickasaw County, IA went without power for an average of 1.3 hours, a total of 9,012 customer-hours (Iowa average 2.2 hours). That ranks 77th worst of 99 Iowa counties and 2196th 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 Chickasaw 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 | April 14, 2018 04:45 | April 14, 2018 06:45 | 2h | 642 | 1,244 |
| 2 | March 5, 2018 17:45 | March 5, 2018 19:45 | 2h | 571 | 538 |
| 3 | December 16, 2018 17:00 | December 17, 2018 14:00 | 21h | 534 | 817 |
| 4 | June 30, 2018 21:15 | July 1, 2018 06:30 | 9h 15m | 437 | 800 |
| 5 | June 15, 2018 00:30 | June 15, 2018 01:30 | 1h | 423 | 423 |
| 6 | October 30, 2018 18:00 | October 30, 2018 19:15 | 1h 15m | 270 | 301 |
| 7 | March 6, 2018 03:15 | March 6, 2018 14:30 | 11h 15m | 110 | 112 |
| 8 | May 8, 2018 05:30 | May 8, 2018 10:15 | 4h 45m | 107 | 458 |
| 9 | June 6, 2018 05:15 | June 6, 2018 08:15 | 3h | 107 | 321 |
| 10 | October 27, 2018 06:30 | October 27, 2018 12:45 | 6h 15m | 97 | 168 |
Outage episodes by size in 2018: 9 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 Chickasaw 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 |
|---|---|---|---|---|---|
| MidAmerican Energy Co | 2018 | 1.9 hrs | 1.18 | 75 min | 0.96 |
| Heartland Power Coop | 2018 | 1.8 hrs | 1.14 | 1.7 hrs | 1.14 |
| MiEnergy Cooperative | 2018 | 2.3 hrs | 0.82 | 86 min | 0.70 |
| Allamakee-Clayton El Coop, Inc | 2018 | 1.5 hrs | 0.73 | 1.5 hrs | 0.73 |
| Interstate Power and Light Co | - | - | - | - | - |
| Butler County Rural Elec Coop - (IA) | - | - | - | - | - |
| City of Alta Vista- (IA) | - | - | - | - | - |
| City of Fredericksburg - (IA) | - | - | - | - | - |
| City of Lawler - (IA) | - | - | - | - | - |
| City of New Hampton - (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 ÷ 6,991 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. Chickasaw County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Chickasaw 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/chickasaw-county