County annual report · FIPS 19033
2018 Cerro Gordo County, IA Power Outage Report
In 2018, customers in Cerro Gordo County, IA went without power for an average of 4.2 hours, a total of 123K customer-hours (Iowa average 2.2 hours). That ranks 17th worst of 99 Iowa counties and 1213th 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 Cerro Gordo 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 | May 28, 2018 22:30 | May 30, 2018 11:15 | 1d 12h | 10,632 | 53K |
| 2 | March 24, 2018 03:00 | March 25, 2018 03:45 | 1d | 4,394 | 24K |
| 3 | May 22, 2018 14:45 | May 22, 2018 15:15 | 30m | 2,722 | 725 |
| 4 | August 8, 2018 12:30 | August 8, 2018 16:00 | 3h 30m | 2,722 | 2,043 |
| 5 | June 2, 2018 13:15 | June 3, 2018 04:15 | 15h | 2,554 | 4,005 |
| 6 | June 8, 2018 08:30 | June 8, 2018 23:45 | 15h 15m | 2,425 | 2,043 |
| 7 | April 14, 2018 03:00 | April 14, 2018 13:30 | 10h 30m | 2,351 | 3,085 |
| 8 | April 3, 2018 15:45 | April 3, 2018 18:45 | 3h | 1,323 | 337 |
| 9 | June 3, 2018 13:30 | June 3, 2018 23:45 | 10h 15m | 1,246 | 1,247 |
| 10 | December 24, 2018 18:30 | December 24, 2018 19:15 | 45m | 782 | 586 |
Outage episodes by size in 2018: 40 reached 100+ customers, 9 reached 1,000+ customers, 1 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 Cerro Gordo 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 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Prairie Energy Coop | - | - | - | - | - |
| Butler County Rural Elec Coop - (IA) | - | - | - | - | - |
| Franklin Rural Electric Coop - (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 ÷ 29,435 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. Cerro Gordo County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Cerro Gordo 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/cerro-gordo-county