County annual report · FIPS 46091
2024 Marshall County, SD Power Outage Report
In 2024, customers in Marshall County, SD went without power for an average of 8.8 hours, a total of 22K customer-hours (South Dakota average 2.3 hours). That ranks 6th worst of 65 South Dakota counties and 1030th of 2,990 nationally.
Compared with SD, the US and 2023
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Marshall County, 2024
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 7, 2024 03:30 | April 7, 2024 05:15 | 1h 45m | 827 | 1,447 |
| 2 | April 7, 2024 08:30 | April 7, 2024 11:15 | 2h 45m | 827 | 2,015 |
| 3 | April 8, 2024 13:00 | April 8, 2024 22:00 | 9h | 827 | 1,359 |
| 4 | January 14, 2024 14:00 | January 14, 2024 14:45 | 45m | 784 | 588 |
| 5 | July 31, 2024 16:45 | August 2, 2024 19:15 | 2d 2h | 742 | 4,328 |
| 6 | June 14, 2024 18:00 | June 14, 2024 23:00 | 5h | 704 | 3,520 |
| 7 | February 17, 2024 17:45 | February 17, 2024 23:30 | 5h 45m | 566 | 947 |
| 8 | June 18, 2024 10:15 | June 18, 2024 10:30 | 15m | 121 | 30 |
| 9 | December 13, 2024 01:30 | December 13, 2024 04:30 | 3h | 82 | 183 |
| 10 | April 6, 2024 19:15 | April 6, 2024 23:00 | 3h 45m | 77 | 123 |
Outage episodes by size in 2024: 8 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 Marshall County reported on EIA Form 861 for 2024, 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 |
|---|---|---|---|---|---|
| Otter Tail Power Co | 2024 | 2.6 hrs | 1.37 | 1.9 hrs | 1.09 |
| NorthWestern Energy - (SD) | 2024 | 76 min | 0.70 | 66 min | 0.65 |
| Northern Electric Coop, Inc | 2024 | 50 min | 0.67 | 50 min | 0.67 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Traverse Electric Coop, Inc | - | - | - | - | - |
| Lake Region Electric Assn, Inc - (SD) | - | - | - | - | - |
| Town of Langford- (SD) | - | - | - | - | - |
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 South Dakota's customers in 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 2,509 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 2019–2025.
Cite this report
MassOutage (massoutage.com), Marshall County, SD annual power outage report, 2024, 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/2024/south-dakota/marshall-county