County annual report · FIPS 46061
2016 Hanson County, SD Power Outage Report
In 2016, customers in Hanson County, SD went without power for an average of 1.2 hours, a total of 2,327 customer-hours (South Dakota average 0.9 hours). That ranks 3rd worst of 15 South Dakota counties and 1677th of 2,391 nationally.
Compared with SD, the US and 2015
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Hanson County, 2016
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 12, 2016 23:00 | January 13, 2016 02:15 | 3h 15m | 717 | 1,960 |
| 2 | July 21, 2016 23:30 | July 22, 2016 00:45 | 1h 15m | 377 | 189 |
| 3 | June 17, 2016 21:30 | June 17, 2016 22:45 | 1h 15m | 73 | 73 |
| 4 | June 22, 2016 09:30 | June 22, 2016 11:30 | 2h | 17 | 34 |
| 5 | June 18, 2016 08:45 | June 18, 2016 09:45 | 1h | 11 | 11 |
| 6 | May 16, 2016 02:45 | May 16, 2016 06:45 | 4h | 7 | 28 |
| 7 | September 3, 2016 03:00 | September 3, 2016 05:00 | 2h | 6 | 11 |
| 8 | January 2, 2016 02:00 | January 2, 2016 04:15 | 2h 15m | 1 | 2 |
| 9 | January 8, 2016 05:30 | January 8, 2016 06:00 | 30m | 1 | 1 |
| 10 | April 23, 2016 15:15 | April 23, 2016 16:30 | 1h 15m | 1 | 1 |
Outage episodes by size in 2016: 2 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 Hanson County reported on EIA Form 861 for 2016, 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 | 2016 | 2.3 hrs | 0.97 | 86 min | 0.84 |
| NorthWestern Energy - (SD) | 2016 | 2.1 hrs | 1.42 | 85 min | 1.14 |
| 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 n/a of South Dakota's customers in 2016; 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, 2016, 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/2016/south-dakota/hanson-county