County annual report · FIPS 19033
2020 Cerro Gordo County, IA Power Outage Report
In 2020, customers in Cerro Gordo County, IA went without power for an average of 1.0 hours, a total of 30K customer-hours (Iowa average 27.4 hours). That ranks 83rd worst of 99 Iowa counties and 2653rd 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 Cerro Gordo 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 | July 9, 2020 12:45 | July 9, 2020 20:45 | 8h | 1,934 | 2,894 |
| 2 | July 11, 2020 20:45 | July 12, 2020 06:45 | 10h | 1,324 | 1,662 |
| 3 | August 19, 2020 20:30 | August 20, 2020 04:15 | 7h 45m | 1,262 | 778 |
| 4 | October 5, 2020 12:45 | October 5, 2020 19:30 | 6h 45m | 1,071 | 930 |
| 5 | November 10, 2020 11:45 | November 11, 2020 21:00 | 1d 9h | 946 | 5,098 |
| 6 | February 13, 2020 10:30 | February 14, 2020 00:30 | 14h | 843 | 2,017 |
| 7 | April 14, 2020 15:00 | April 14, 2020 15:15 | 15m | 836 | 209 |
| 8 | June 20, 2020 11:30 | June 20, 2020 13:45 | 2h 15m | 708 | 544 |
| 9 | June 19, 2020 02:00 | June 19, 2020 22:15 | 20h 15m | 560 | 623 |
| 10 | October 1, 2020 17:30 | October 1, 2020 18:15 | 45m | 523 | 154 |
Outage episodes by size in 2020: 22 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 Cerro Gordo 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 |
|---|---|---|---|---|---|
| MidAmerican Energy Co | 2020 | 18.3 hrs | 1.43 | 82 min | 0.79 |
| Heartland Power Coop | 2020 | 2.3 hrs | 1.14 | 2.0 hrs | 1.09 |
| 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 91% of Iowa's customers in 2020; 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, 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/cerro-gordo-county