County annual report · FIPS 19025
2015 Calhoun County, IA Power Outage Report
In 2015, customers in Calhoun County, IA went without power for an average of 4.1 hours, a total of 17K customer-hours (Iowa average 1.1 hours). That ranks 5th worst of 99 Iowa counties and 686th 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 Calhoun 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 | November 26, 2015 20:00 | November 27, 2015 18:30 | 22h 30m | 2,026 | 11K |
| 2 | December 2, 2015 22:45 | December 3, 2015 02:45 | 4h | 1,577 | 2,381 |
| 3 | August 8, 2015 23:15 | August 9, 2015 01:45 | 2h 30m | 1,095 | 1,109 |
| 4 | September 13, 2015 13:00 | September 13, 2015 17:15 | 4h 15m | 518 | 789 |
| 5 | August 30, 2015 13:15 | August 30, 2015 14:30 | 1h 15m | 331 | 177 |
| 6 | October 19, 2015 15:15 | October 19, 2015 17:00 | 1h 45m | 105 | 184 |
| 7 | October 12, 2015 14:00 | October 12, 2015 14:45 | 45m | 59 | 30 |
| 8 | November 12, 2015 23:30 | November 13, 2015 06:15 | 6h 45m | 58 | 214 |
| 9 | November 12, 2015 07:15 | November 12, 2015 11:00 | 3h 45m | 54 | 189 |
| 10 | September 29, 2015 19:45 | September 29, 2015 21:45 | 2h | 45 | 37 |
Outage episodes by size in 2015: 6 reached 100+ customers, 3 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 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 |
| 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 2015; 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, 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/calhoun-county