County annual report · FIPS 19181
2025 Warren County, IA Power Outage Report
In 2025, customers in Warren County, IA went without power for an average of 1.9 hours, a total of 46K customer-hours (Iowa average 2.9 hours). That ranks 78th worst of 99 Iowa counties and 2444th 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 Warren 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 | April 30, 2025 15:15 | April 30, 2025 18:30 | 3h 15m | 2,366 | 1,683 |
| 2 | June 20, 2025 12:30 | June 20, 2025 14:30 | 2h | 1,634 | 2,451 |
| 3 | January 5, 2025 03:00 | January 5, 2025 08:15 | 5h 15m | 1,622 | 2,027 |
| 4 | July 28, 2025 08:30 | July 28, 2025 22:15 | 13h 45m | 1,440 | 9,349 |
| 5 | December 10, 2025 11:00 | December 10, 2025 17:00 | 6h | 1,161 | 2,706 |
| 6 | August 9, 2025 15:30 | August 9, 2025 23:15 | 7h 45m | 737 | 195 |
| 7 | March 23, 2025 17:00 | March 24, 2025 08:15 | 15h 15m | 636 | 2,572 |
| 8 | March 14, 2025 22:45 | March 15, 2025 12:00 | 13h 15m | 589 | 1,983 |
| 9 | June 26, 2025 21:30 | June 27, 2025 08:30 | 11h | 556 | 1,192 |
| 10 | April 1, 2025 14:15 | April 1, 2025 23:45 | 9h 30m | 491 | 568 |
Outage episodes by size in 2025: 26 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 Warren 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 |
| Indianola Municipal Utilities | 2016 | 29 min | 0.76 | 29 min | 0.76 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Clarke Electric Coop Inc - (IA) | - | - | - | - | - |
| Pella Cooperative Elec Assn | - | - | - | - | - |
| City of Carlisle- (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 ÷ 23,806 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. Warren County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Warren 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/warren-county