County annual report · FIPS 19137
2015 Montgomery County, IA Power Outage Report
In 2015, customers in Montgomery County, IA went without power for an average of 0.8 hours, a total of 4,367 customer-hours (Iowa average 1.1 hours). That ranks 60th worst of 99 Iowa counties and 1899th 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 Montgomery 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 | August 23, 2015 00:45 | August 23, 2015 04:15 | 3h 30m | 217 | 506 |
| 2 | November 12, 2015 19:30 | November 12, 2015 22:30 | 3h | 215 | 262 |
| 3 | August 9, 2015 06:45 | August 9, 2015 15:00 | 8h 15m | 213 | 738 |
| 4 | November 27, 2015 02:00 | November 27, 2015 19:15 | 17h 15m | 164 | 1,067 |
| 5 | November 11, 2015 20:00 | November 12, 2015 06:15 | 10h 15m | 125 | 370 |
| 6 | August 18, 2015 07:45 | August 18, 2015 17:00 | 9h 15m | 104 | 389 |
| 7 | September 24, 2015 13:45 | September 24, 2015 17:45 | 4h | 94 | 305 |
| 8 | September 29, 2015 18:00 | September 29, 2015 20:15 | 2h 15m | 80 | 22 |
| 9 | September 8, 2015 10:15 | September 8, 2015 12:45 | 2h 30m | 54 | 122 |
| 10 | September 18, 2015 16:00 | September 18, 2015 21:00 | 5h | 45 | 225 |
Outage episodes by size in 2015: 6 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 Montgomery 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 |
| Southwest Iowa Rural Elec Coop | 2015 | 1.6 hrs | 1.15 | 66 min | 0.86 |
| 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 2015; 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, 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/montgomery-county