County annual report · FIPS 46061
2022 Hanson County, SD Power Outage Report
In 2022, customers in Hanson County, SD went without power for an average of 13.0 hours, a total of 26K customer-hours (South Dakota average 6.9 hours). That ranks 19th worst of 63 South Dakota counties and 517th 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 Hanson 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 | December 24, 2022 11:30 | December 24, 2022 15:30 | 4h | 1,477 | 2,853 |
| 2 | May 12, 2022 21:30 | May 15, 2022 17:00 | 2d 19h | 786 | 20K |
| 3 | July 15, 2022 15:45 | July 15, 2022 21:45 | 6h | 781 | 385 |
| 4 | July 5, 2022 20:15 | July 6, 2022 18:45 | 22h 30m | 118 | 909 |
| 5 | June 15, 2022 14:30 | June 15, 2022 14:45 | 15m | 63 | 16 |
| 6 | September 27, 2022 19:00 | September 27, 2022 20:15 | 1h 15m | 63 | 79 |
| 7 | October 18, 2022 18:30 | October 18, 2022 18:45 | 15m | 63 | 16 |
| 8 | October 11, 2022 04:30 | October 11, 2022 21:00 | 16h 30m | 58 | 207 |
| 9 | June 13, 2022 18:15 | June 13, 2022 19:15 | 1h | 51 | 27 |
| 10 | August 9, 2022 03:00 | August 9, 2022 08:15 | 5h 15m | 43 | 219 |
Outage episodes by size in 2022: 4 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 Hanson 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 |
|---|---|---|---|---|---|
| Northern States Power Co - Minnesota | 2022 | 4.0 hrs | 1.08 | 72 min | 0.72 |
| NorthWestern Energy - (SD) | 2022 | 2.1 hrs | 1.26 | 80 min | 1.01 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Southeastern Electric Coop Inc - (SD) | - | - | - | - | - |
| Central Electric Coop, Inc - (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 ÷ 1,960 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. Hanson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Hanson 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/hanson-county