County annual report · FIPS 19057
2021 Des Moines County, IA Power Outage Report
In 2021, customers in Des Moines County, IA went without power for an average of 2.1 hours, a total of 38K customer-hours (Iowa average 2.7 hours). That ranks 58th worst of 99 Iowa counties and 2196th of 2,974 nationally.
Compared with IA, the US and 2020
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Des Moines County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 11, 2021 16:15 | June 12, 2021 05:30 | 13h 15m | 4,966 | 8,397 |
| 2 | September 26, 2021 13:45 | September 26, 2021 16:15 | 2h 30m | 2,575 | 4,506 |
| 3 | December 16, 2021 02:15 | December 16, 2021 16:15 | 14h | 904 | 2,234 |
| 4 | January 18, 2021 16:15 | January 18, 2021 17:45 | 1h 30m | 902 | 227 |
| 5 | August 11, 2021 09:45 | August 12, 2021 15:15 | 1d 5h | 868 | 3,793 |
| 6 | October 29, 2021 16:15 | November 1, 2021 18:30 | 3d 2h | 787 | 1,886 |
| 7 | March 2, 2021 22:00 | March 3, 2021 01:30 | 3h 30m | 462 | 577 |
| 8 | July 27, 2021 13:45 | July 27, 2021 20:15 | 6h 30m | 367 | 169 |
| 9 | March 3, 2021 14:45 | March 3, 2021 18:45 | 4h | 277 | 316 |
| 10 | August 5, 2021 14:30 | August 5, 2021 14:45 | 15m | 264 | 66 |
Outage episodes by size in 2021: 24 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 Des Moines County reported on EIA Form 861 for 2021, 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 |
|---|---|---|---|---|---|
| Eastern Iowa Light & Power Coop | 2021 | 2.1 hrs | 1.31 | 1.8 hrs | 1.22 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Access Energy Coop | - | - | - | - | - |
| City of Danville - (IA) | - | - | - | - | - |
| New London Municipal Utilities | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 91% of Iowa's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 18,207 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. Des Moines County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Des Moines County, IA annual power outage report, 2021, 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/2021/iowa/des-moines-county