County annual report · FIPS 19127
2018 Marshall County, IA Power Outage Report
In 2018, customers in Marshall County, IA went without power for an average of 33.8 hours, a total of 538K customer-hours (Iowa average 2.2 hours). That ranks 1st worst of 99 Iowa counties and 174th of 2,798 nationally.
Compared with IA, the US and 2017
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Marshall County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 19, 2018 21:45 | August 7, 2018 15:30 | 18d 17h | 8,657 | 465K |
| 2 | August 28, 2018 21:15 | August 29, 2018 08:30 | 11h 15m | 3,500 | 5,366 |
| 3 | September 10, 2018 06:30 | September 10, 2018 09:45 | 3h 15m | 2,273 | 2,772 |
| 4 | June 6, 2018 23:15 | June 8, 2018 09:30 | 1d 10h | 1,854 | 8,319 |
| 5 | March 24, 2018 08:15 | March 26, 2018 21:45 | 2d 13h | 1,731 | 20K |
| 6 | November 3, 2018 16:00 | November 3, 2018 18:00 | 2h | 1,323 | 2,497 |
| 7 | October 6, 2018 02:45 | October 6, 2018 03:15 | 30m | 1,148 | 574 |
| 8 | October 3, 2018 17:45 | October 3, 2018 20:30 | 2h 45m | 1,143 | 1,616 |
| 9 | March 14, 2018 19:15 | March 14, 2018 22:00 | 2h 45m | 853 | 1,601 |
| 10 | May 3, 2018 16:00 | May 3, 2018 18:30 | 2h 30m | 801 | 603 |
Outage episodes by size in 2018: 40 reached 100+ customers, 8 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 2018, 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) | 2018 | 2.4 hrs | 1.61 | 1.6 hrs | 1.35 |
| 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 89% of Iowa's customers in 2018; 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, 2018, 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/2018/iowa/marshall-county