County annual report · FIPS 46055
2021 Haakon County, SD Power Outage Report
In 2021, customers in Haakon County, SD went without power for an average of 3.2 hours, a total of 4,443 customer-hours (South Dakota average 3.4 hours). That ranks 26th worst of 61 South Dakota counties and 1768th of 2,974 nationally.
Compared with SD, the US and 2020
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Haakon County, 2021
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 22, 2021 17:15 | April 22, 2021 19:15 | 2h | 334 | 430 |
| 2 | March 11, 2021 14:15 | March 15, 2021 02:00 | 3d 11h | 242 | 532 |
| 3 | February 7, 2021 10:15 | February 7, 2021 12:15 | 2h | 232 | 268 |
| 4 | February 23, 2021 04:30 | February 23, 2021 05:30 | 1h | 213 | 161 |
| 5 | June 12, 2021 03:15 | June 12, 2021 03:30 | 15m | 123 | 31 |
| 6 | September 30, 2021 15:15 | September 30, 2021 18:00 | 2h 45m | 118 | 325 |
| 7 | February 3, 2021 17:15 | February 3, 2021 18:45 | 1h 30m | 94 | 49 |
| 8 | March 15, 2021 04:45 | March 17, 2021 00:45 | 1d 20h | 61 | 481 |
| 9 | May 22, 2021 03:15 | May 22, 2021 12:15 | 9h | 60 | 540 |
| 10 | May 26, 2021 06:45 | May 26, 2021 09:15 | 2h 30m | 60 | 150 |
Outage episodes by size in 2021: 6 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 2021, 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 | 2021 | 54 min | 0.72 | 54 min | 0.72 |
| 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 79% of South Dakota's customers in 2021; 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, 2021, 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/2021/south-dakota/haakon-county