County annual report · FIPS 19127
2020 Marshall County, IA Power Outage Report
In 2020, customers in Marshall County, IA went without power for an average of 143.9 hours, a total of 2.3M customer-hours (Iowa average 27.4 hours). That ranks 2nd worst of 99 Iowa counties and 33rd of 3,019 nationally.
Compared with IA, the US and 2019
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Marshall County, 2020
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 10, 2020 15:30 | August 25, 2020 19:30 | 15d 4h | 16,662 | 2.2M |
| 2 | September 6, 2020 10:45 | September 7, 2020 08:15 | 21h 30m | 4,337 | 12K |
| 3 | February 25, 2020 22:00 | February 26, 2020 00:00 | 2h | 1,193 | 1,549 |
| 4 | March 19, 2020 18:45 | March 19, 2020 19:15 | 30m | 1,188 | 594 |
| 5 | November 16, 2020 10:45 | November 16, 2020 12:30 | 1h 45m | 1,181 | 327 |
| 6 | August 28, 2020 21:00 | August 30, 2020 11:00 | 1d 14h | 1,158 | 1,983 |
| 7 | November 22, 2020 22:15 | November 23, 2020 01:15 | 3h | 1,143 | 615 |
| 8 | July 22, 2020 22:45 | July 23, 2020 02:00 | 3h 15m | 527 | 985 |
| 9 | September 2, 2020 19:45 | September 2, 2020 23:15 | 3h 30m | 461 | 1,279 |
| 10 | October 9, 2020 15:30 | October 30, 2020 17:00 | 21d 1h | 409 | 1,448 |
Outage episodes by size in 2020: 25 reached 100+ customers, 7 reached 1,000+ customers, 1 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 2020, 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) | 2020 | 35.0 hrs | 2.79 | 69 min | 1.26 |
| 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 91% of Iowa's customers in 2020; 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, 2020, 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/2020/iowa/marshall-county