County annual report · FIPS 46077
2025 Kingsbury County, SD Power Outage Report
In 2025, customers in Kingsbury County, SD went without power for an average of 1.4 hours, a total of 3,533 customer-hours (South Dakota average 6.5 hours). That ranks 48th worst of 65 South Dakota counties and 2657th of 3,000 nationally.
Compared with SD, the US and 2024
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Kingsbury County, 2025
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 16, 2025 08:45 | August 16, 2025 22:45 | 14h | 319 | 1,134 |
| 2 | September 20, 2025 23:00 | September 21, 2025 00:30 | 1h 30m | 207 | 94 |
| 3 | July 10, 2025 04:30 | July 10, 2025 06:30 | 2h | 201 | 295 |
| 4 | September 24, 2025 04:30 | September 24, 2025 06:00 | 1h 30m | 159 | 239 |
| 5 | May 16, 2025 02:00 | May 16, 2025 07:30 | 5h 30m | 125 | 406 |
| 6 | September 24, 2025 21:45 | September 24, 2025 23:00 | 1h 15m | 94 | 30 |
| 7 | May 10, 2025 20:15 | May 10, 2025 21:00 | 45m | 90 | 46 |
| 8 | September 5, 2025 16:15 | September 5, 2025 17:30 | 1h 15m | 85 | 106 |
| 9 | October 12, 2025 11:30 | October 12, 2025 13:45 | 2h 15m | 78 | 123 |
| 10 | June 8, 2025 16:30 | June 8, 2025 18:30 | 2h | 63 | 126 |
Outage episodes by size in 2025: 5 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 Kingsbury County reported on EIA Form 861 for 2025, 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 |
| Sioux Valley SW Elec Coop | 2024 | 46 min | 0.92 | 46 min | 0.92 |
| Dakota Energy Coop Inc | - | - | - | - | - |
| Codington-Clark Elec Coop, Inc | - | - | - | - | - |
| Kingsbury Electric Coop, Inc | - | - | - | - | - |
| City of Arlington - (SD) | - | - | - | - | - |
| City of Badger - (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 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 2,587 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. Kingsbury County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Kingsbury County, SD annual power outage report, 2025, 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/2025/south-dakota/kingsbury-county