County annual report · FIPS 19003
2025 Adams County, IA Power Outage Report
In 2025, customers in Adams County, IA went without power for an average of 3.2 hours, a total of 5,868 customer-hours (Iowa average 2.9 hours). That ranks 47th worst of 99 Iowa counties and 2001st 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 Adams 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 | September 4, 2025 01:00 | September 4, 2025 08:00 | 7h | 344 | 406 |
| 2 | September 10, 2025 19:30 | September 10, 2025 21:00 | 1h 30m | 261 | 233 |
| 3 | March 5, 2025 04:00 | March 6, 2025 01:15 | 21h 15m | 251 | 1,088 |
| 4 | January 13, 2025 10:00 | January 13, 2025 12:15 | 2h 15m | 234 | 180 |
| 5 | June 25, 2025 01:00 | June 25, 2025 01:45 | 45m | 229 | 115 |
| 6 | November 26, 2025 00:15 | November 26, 2025 03:30 | 3h 15m | 185 | 601 |
| 7 | October 7, 2025 01:30 | October 7, 2025 03:15 | 1h 45m | 129 | 103 |
| 8 | June 10, 2025 14:00 | June 10, 2025 21:30 | 7h 30m | 101 | 141 |
| 9 | July 2, 2025 13:00 | July 2, 2025 14:15 | 1h 15m | 88 | 68 |
| 10 | May 30, 2025 13:30 | May 30, 2025 15:30 | 2h | 87 | 131 |
Outage episodes by size in 2025: 8 reached 100+ customers, 0 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 Adams 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 |
| Southwest Iowa Rural Elec Coop | 2018 | 2.4 hrs | 1.69 | 1.6 hrs | 1.21 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| City of Corning - (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 ÷ 1,844 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. Adams County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Adams 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/adams-county