County annual report · FIPS 19033
2015 Cerro Gordo County, IA Power Outage Report
In 2015, customers in Cerro Gordo County, IA went without power for an average of 0.8 hours, a total of 24K customer-hours (Iowa average 1.1 hours). That ranks 54th worst of 99 Iowa counties and 1858th of 2,484 nationally.
Compared with IA, the US
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Cerro Gordo County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 10, 2015 00:00 | September 10, 2015 01:15 | 1h 15m | 10,571 | 2,644 |
| 2 | August 21, 2015 13:15 | August 21, 2015 13:30 | 15m | 2,475 | 619 |
| 3 | November 12, 2015 08:45 | November 12, 2015 17:30 | 8h 45m | 1,940 | 3,015 |
| 4 | April 20, 2015 19:00 | April 20, 2015 22:00 | 3h | 1,808 | 1,809 |
| 5 | January 12, 2015 21:00 | January 12, 2015 22:00 | 1h | 1,804 | 1,804 |
| 6 | September 7, 2015 12:30 | September 7, 2015 13:30 | 1h | 1,085 | 814 |
| 7 | October 26, 2015 15:15 | October 26, 2015 15:30 | 15m | 820 | 205 |
| 8 | June 22, 2015 12:45 | June 23, 2015 02:00 | 13h 15m | 781 | 1,107 |
| 9 | September 23, 2015 17:00 | September 23, 2015 19:45 | 2h 45m | 538 | 411 |
| 10 | August 25, 2015 17:00 | August 25, 2015 17:15 | 15m | 405 | 101 |
Outage episodes by size in 2015: 30 reached 100+ customers, 6 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 2015, 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 | 2015 | 2.2 hrs | 1.05 | 87 min | 0.88 |
| Heartland Power Coop | 2015 | 49 min | 0.71 | 49 min | 0.71 |
| 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 n/a of Iowa's customers in 2015; 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, 2015, 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/2015/iowa/cerro-gordo-county