County annual report · FIPS 19127
2023 Marshall County, IA Power Outage Report
In 2023, customers in Marshall County, IA went without power for an average of 1.5 hours, a total of 24K customer-hours (Iowa average 2.0 hours). That ranks 53rd worst of 99 Iowa counties and 2485th 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 Marshall 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 | March 22, 2023 13:45 | March 22, 2023 20:46 | 7h 1m | 1,620 | 1,886 |
| 2 | July 31, 2023 13:30 | July 31, 2023 15:15 | 1h 45m | 955 | 715 |
| 3 | May 7, 2023 21:00 | May 9, 2023 13:00 | 1d 16h | 886 | 3,072 |
| 4 | March 31, 2023 10:45 | March 31, 2023 11:15 | 30m | 630 | 315 |
| 5 | February 23, 2023 00:45 | February 23, 2023 21:30 | 20h 45m | 401 | 2,506 |
| 6 | March 12, 2023 20:00 | March 12, 2023 20:30 | 30m | 244 | 122 |
| 7 | November 8, 2023 15:00 | November 15, 2023 19:30 | 7d 4h | 228 | 813 |
| 8 | April 12, 2023 15:15 | April 12, 2023 21:30 | 6h 15m | 214 | 117 |
| 9 | March 2, 2023 06:30 | March 2, 2023 11:15 | 4h 45m | 196 | 735 |
| 10 | December 25, 2023 17:15 | December 25, 2023 19:30 | 2h 15m | 180 | 186 |
Outage episodes by size in 2023: 18 reached 100+ customers, 1 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 Marshall 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 |
|---|---|---|---|---|---|
| Consumers Energy Coop - (IA) | 2023 | 1.9 hrs | 0.92 | 1.9 hrs | 0.92 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Midland Power Coop | - | - | - | - | - |
| Grundy County Rural Elec Coop | - | - | - | - | - |
| City of State Center - (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 ÷ 15,945 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. Marshall County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Marshall 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/marshall-county