County annual report · FIPS 19025
2023 Calhoun County, IA Power Outage Report
In 2023, customers in Calhoun County, IA went without power for an average of 1.4 hours, a total of 5,675 customer-hours (Iowa average 2.0 hours). That ranks 58th worst of 99 Iowa counties and 2529th of 2,977 nationally.
Compared with IA, the US and 2022
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Calhoun County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 10, 2023 18:00 | December 10, 2023 21:45 | 3h 45m | 1,258 | 2,741 |
| 2 | June 16, 2023 13:45 | June 16, 2023 20:00 | 6h 15m | 633 | 166 |
| 3 | April 19, 2023 08:30 | April 19, 2023 11:30 | 3h | 316 | 944 |
| 4 | January 3, 2023 03:00 | January 3, 2023 05:45 | 2h 45m | 257 | 133 |
| 5 | November 16, 2023 18:15 | November 16, 2023 18:45 | 30m | 180 | 90 |
| 6 | September 23, 2023 18:45 | September 23, 2023 21:00 | 2h 15m | 84 | 86 |
| 7 | November 30, 2023 18:45 | November 30, 2023 21:00 | 2h 15m | 83 | 65 |
| 8 | October 4, 2023 04:15 | October 4, 2023 05:30 | 1h 15m | 76 | 95 |
| 9 | October 17, 2023 14:00 | October 17, 2023 16:45 | 2h 45m | 64 | 67 |
| 10 | July 15, 2023 07:45 | July 15, 2023 10:15 | 2h 30m | 47 | 65 |
Outage episodes by size in 2023: 5 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 2023, 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 | 2023 | 2.8 hrs | 1.13 | 78 min | 0.83 |
| 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 2023; 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, 2023, 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/2023/iowa/calhoun-county