County annual report · FIPS 19137
2023 Montgomery County, IA Power Outage Report
In 2023, customers in Montgomery County, IA went without power for an average of 2.0 hours, a total of 11K customer-hours (Iowa average 2.0 hours). That ranks 44th worst of 99 Iowa counties and 2294th 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 Montgomery 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 | April 1, 2023 05:15 | April 1, 2023 07:45 | 2h 30m | 4,524 | 1,389 |
| 2 | June 8, 2023 09:45 | June 8, 2023 11:30 | 1h 45m | 1,178 | 2,062 |
| 3 | July 27, 2023 05:00 | July 27, 2023 06:00 | 1h | 438 | 280 |
| 4 | April 15, 2023 03:15 | April 15, 2023 21:30 | 18h 15m | 269 | 1,796 |
| 5 | July 12, 2023 12:00 | July 12, 2023 21:30 | 9h 30m | 253 | 742 |
| 6 | June 24, 2023 14:30 | June 24, 2023 18:45 | 4h 15m | 250 | 998 |
| 7 | February 15, 2023 12:30 | February 15, 2023 14:45 | 2h 15m | 203 | 161 |
| 8 | July 1, 2023 17:15 | July 1, 2023 20:00 | 2h 45m | 203 | 332 |
| 9 | July 21, 2023 09:00 | July 21, 2023 10:45 | 1h 45m | 203 | 355 |
| 10 | May 8, 2023 01:45 | May 8, 2023 06:15 | 4h 30m | 153 | 374 |
Outage episodes by size in 2023: 12 reached 100+ customers, 2 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 Montgomery 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 |
| Southwest Iowa Rural Elec Coop | 2018 | 2.4 hrs | 1.69 | 1.6 hrs | 1.21 |
| Interstate Power and Light Co | - | - | - | - | - |
| City of Stanton - (IA) | - | - | - | - | - |
| City of Villisca - (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 ÷ 5,724 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. Montgomery County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Montgomery 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/montgomery-county