County annual report · FIPS 46091
2022 Marshall County, SD Power Outage Report
In 2022, customers in Marshall County, SD went without power for an average of 45.6 hours, a total of 114K customer-hours (South Dakota average 6.9 hours). That ranks 5th worst of 63 South Dakota counties and 91st of 2,976 nationally.
Compared with SD, the US and 2021
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Marshall County, 2022
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 23, 2022 06:15 | April 24, 2022 20:15 | 1d 14h | 701 | 24K |
| 2 | October 4, 2022 15:15 | October 7, 2022 01:45 | 2d 10h | 690 | 20K |
| 3 | May 13, 2022 00:15 | May 13, 2022 20:15 | 20h | 687 | 1,874 |
| 4 | September 9, 2022 14:15 | September 9, 2022 20:30 | 6h 15m | 555 | 1,728 |
| 5 | September 12, 2022 20:00 | September 15, 2022 19:30 | 2d 23h | 444 | 31K |
| 6 | July 10, 2022 18:00 | August 2, 2022 17:00 | 22d 23h | 435 | 1,380 |
| 7 | September 19, 2022 21:15 | September 21, 2022 13:15 | 1d 16h | 434 | 17K |
| 8 | September 27, 2022 13:15 | September 27, 2022 18:30 | 5h 15m | 434 | 1,999 |
| 9 | September 30, 2022 14:30 | September 30, 2022 18:30 | 4h | 434 | 1,736 |
| 10 | November 10, 2022 04:45 | November 16, 2022 21:15 | 6d 16h | 279 | 5,384 |
Outage episodes by size in 2022: 13 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 2022, 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 | 2022 | 6.2 hrs | 2.20 | 2.1 hrs | 1.80 |
| NorthWestern Energy - (SD) | 2022 | 2.1 hrs | 1.26 | 80 min | 1.01 |
| Northern Electric Coop, Inc | 2022 | 5.1 hrs | 1.09 | 1.8 hrs | 0.77 |
| 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 89% of South Dakota's customers in 2022; 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, 2022, 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/2022/south-dakota/marshall-county