County annual report · FIPS 46055
2025 Haakon County, SD Power Outage Report
In 2025, customers in Haakon County, SD went without power for an average of 2.3 hours, a total of 3,124 customer-hours (South Dakota average 6.5 hours). That ranks 35th worst of 65 South Dakota counties and 2322nd 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 Haakon 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 | December 18, 2025 11:00 | December 18, 2025 14:15 | 3h 15m | 464 | 369 |
| 2 | September 29, 2025 16:15 | September 29, 2025 18:45 | 2h 30m | 315 | 788 |
| 3 | July 1, 2025 19:00 | July 1, 2025 19:15 | 15m | 150 | 38 |
| 4 | March 12, 2025 16:00 | March 12, 2025 17:45 | 1h 45m | 127 | 222 |
| 5 | May 19, 2025 07:00 | May 19, 2025 09:15 | 2h 15m | 110 | 169 |
| 6 | June 5, 2025 17:30 | June 5, 2025 17:45 | 15m | 82 | 21 |
| 7 | June 5, 2025 19:15 | June 5, 2025 21:00 | 1h 45m | 82 | 130 |
| 8 | July 6, 2025 05:30 | July 6, 2025 06:45 | 1h 15m | 82 | 103 |
| 9 | December 19, 2025 18:45 | December 19, 2025 21:30 | 2h 45m | 78 | 187 |
| 10 | May 5, 2025 21:15 | May 5, 2025 21:45 | 30m | 66 | 33 |
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 Haakon 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 |
|---|---|---|---|---|---|
| West Central Electric Coop Inc - (SD) | 2018 | 3.7 hrs | 1.25 | 1.5 hrs | 1.25 |
| West River Electric Assn Inc | 2024 | 44 min | 0.53 | 44 min | 0.53 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
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 ÷ 1,375 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. Haakon County has data for 2018–2025.
Cite this report
MassOutage (massoutage.com), Haakon 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/haakon-county