County annual report · FIPS 46039
2025 Deuel County, SD Power Outage Report
In 2025, customers in Deuel County, SD went without power for an average of 6.3 hours, a total of 9,433 customer-hours (South Dakota average 6.5 hours). That ranks 21st worst of 65 South Dakota counties and 1255th 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 Deuel 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 | February 13, 2025 19:15 | February 13, 2025 20:15 | 1h | 1,039 | 654 |
| 2 | January 24, 2025 01:30 | January 24, 2025 02:15 | 45m | 849 | 518 |
| 3 | June 29, 2025 01:45 | June 30, 2025 13:45 | 1d 12h | 764 | 619 |
| 4 | April 25, 2025 05:45 | April 25, 2025 08:15 | 2h 30m | 761 | 1,391 |
| 5 | May 5, 2025 09:30 | May 5, 2025 11:30 | 2h | 601 | 733 |
| 6 | July 28, 2025 03:30 | July 28, 2025 03:45 | 15m | 518 | 130 |
| 7 | February 13, 2025 21:45 | February 13, 2025 22:00 | 15m | 495 | 124 |
| 8 | April 2, 2025 15:00 | April 2, 2025 15:15 | 15m | 353 | 88 |
| 9 | March 30, 2025 03:15 | March 31, 2025 16:30 | 1d 13h | 259 | 997 |
| 10 | January 26, 2025 18:30 | January 27, 2025 17:00 | 22h 30m | 180 | 470 |
Outage episodes by size in 2025: 14 reached 100+ customers, 1 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 Deuel 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 |
| H-D Electric Coop Inc | 2018 | 2.6 hrs | 1.52 | 1.6 hrs | 1.14 |
| Whetstone Valley Elec Coop Inc | 2018 | 73 min | 0.64 | 42 min | 0.43 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Codington-Clark Elec Coop, Inc | - | - | - | - | - |
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 ÷ 1,505 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. Deuel County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Deuel 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/deuel-county