County annual report · FIPS 19053
2015 Decatur County, IA Power Outage Report
In 2015, customers in Decatur County, IA went without power for an average of 1.0 hours, a total of 3,368 customer-hours (Iowa average 1.1 hours). That ranks 48th worst of 99 Iowa counties and 1762nd 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 Decatur 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 | November 26, 2015 20:15 | November 26, 2015 22:00 | 1h 45m | 742 | 1,298 |
| 2 | November 11, 2015 21:00 | November 11, 2015 23:15 | 2h 15m | 307 | 483 |
| 3 | December 11, 2015 12:15 | December 11, 2015 14:00 | 1h 45m | 275 | 219 |
| 4 | May 17, 2015 07:15 | May 17, 2015 21:45 | 14h 30m | 86 | 364 |
| 5 | November 12, 2015 18:45 | November 12, 2015 21:45 | 3h | 73 | 219 |
| 6 | April 22, 2015 15:30 | April 22, 2015 16:15 | 45m | 61 | 46 |
| 7 | March 10, 2015 21:30 | March 10, 2015 22:15 | 45m | 59 | 44 |
| 8 | September 18, 2015 17:30 | September 18, 2015 18:30 | 1h | 59 | 59 |
| 9 | September 29, 2015 13:15 | September 29, 2015 16:30 | 3h 15m | 59 | 93 |
| 10 | February 20, 2015 18:15 | February 20, 2015 19:00 | 45m | 43 | 26 |
Outage episodes by size in 2015: 3 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 Decatur 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 |
|---|---|---|---|---|---|
| Southwest Iowa Rural Elec Coop | 2015 | 1.6 hrs | 1.15 | 66 min | 0.86 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Grundy Electric Coop, Inc | - | - | - | - | - |
| Clarke Electric Coop Inc - (IA) | - | - | - | - | - |
| City of Lamoni - (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 ÷ 3,356 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. Decatur County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Decatur 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/decatur-county