County annual report · FIPS 19157
2025 Poweshiek County, IA Power Outage Report
In 2025, customers in Poweshiek County, IA went without power for an average of 5.8 hours, a total of 39K customer-hours (Iowa average 2.9 hours). That ranks 22nd worst of 99 Iowa counties and 1321st of 3,000 nationally.
Compared with IA, the US and 2024
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Poweshiek County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 14, 2025 22:45 | March 15, 2025 23:15 | 1d | 4,717 | 12K |
| 2 | January 30, 2025 08:30 | January 30, 2025 11:15 | 2h 45m | 3,659 | 6,885 |
| 3 | June 20, 2025 11:15 | June 21, 2025 03:15 | 16h | 2,365 | 4,475 |
| 4 | March 5, 2025 11:15 | March 5, 2025 21:00 | 9h 45m | 1,723 | 519 |
| 5 | July 29, 2025 07:15 | July 29, 2025 16:30 | 9h 15m | 1,049 | 3,662 |
| 6 | June 11, 2025 10:30 | June 11, 2025 14:00 | 3h 30m | 567 | 892 |
| 7 | September 22, 2025 17:00 | September 22, 2025 17:45 | 45m | 501 | 126 |
| 8 | May 20, 2025 10:30 | May 20, 2025 13:15 | 2h 45m | 458 | 1,141 |
| 9 | July 28, 2025 08:15 | July 28, 2025 20:00 | 11h 45m | 383 | 983 |
| 10 | October 15, 2025 15:15 | October 15, 2025 18:00 | 2h 45m | 379 | 1,042 |
Outage episodes by size in 2025: 27 reached 100+ customers, 5 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 Poweshiek County reported on EIA Form 861 for 2025, 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 |
| T I P Rural Electric Coop | 2018 | 2.5 hrs | 1.33 | 2.5 hrs | 1.33 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Pella Cooperative Elec Assn | - | - | - | - | - |
| City of Brooklyn - (IA) | - | - | - | - | - |
| City of Montezuma - (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 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 6,708 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. Poweshiek County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Poweshiek County, IA annual power outage report, 2025, 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/2025/iowa/poweshiek-county