County annual report · FIPS 19025
2024 Calhoun County, IA Power Outage Report
In 2024, customers in Calhoun County, IA went without power for an average of 7.2 hours, a total of 30K customer-hours (Iowa average 3.2 hours). That ranks 13th worst of 99 Iowa counties and 1218th of 2,990 nationally.
Compared with IA, the US and 2023
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Calhoun County, 2024
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 24, 2024 09:30 | May 25, 2024 08:30 | 23h | 2,439 | 24K |
| 2 | September 19, 2024 12:15 | September 19, 2024 22:00 | 9h 45m | 345 | 720 |
| 3 | November 1, 2024 07:15 | November 1, 2024 09:15 | 2h | 345 | 611 |
| 4 | August 18, 2024 15:30 | August 18, 2024 17:45 | 2h 15m | 324 | 322 |
| 5 | May 14, 2024 15:45 | May 14, 2024 19:15 | 3h 30m | 313 | 325 |
| 6 | July 9, 2024 11:45 | July 9, 2024 16:15 | 4h 30m | 214 | 573 |
| 7 | May 21, 2024 20:45 | May 22, 2024 10:45 | 14h | 176 | 443 |
| 8 | April 16, 2024 20:00 | April 16, 2024 22:30 | 2h 30m | 169 | 366 |
| 9 | May 27, 2024 20:45 | May 27, 2024 21:45 | 1h | 73 | 73 |
| 10 | April 24, 2024 18:15 | April 24, 2024 20:30 | 2h 15m | 72 | 60 |
Outage episodes by size in 2024: 8 reached 100+ customers, 1 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 Calhoun County reported on EIA Form 861 for 2024, 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 | 2024 | 5.5 hrs | 1.42 | 1.7 hrs | 0.94 |
| Midland Power Coop | - | - | - | - | - |
| Raccoon Valley Electric Cooperative | - | - | - | - | - |
| Calhoun County Elec Coop Assn | - | - | - | - | - |
| City of Farnhamville - (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 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 4,092 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. Calhoun County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Calhoun County, IA annual power outage report, 2024, 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/2024/iowa/calhoun-county