County annual report · FIPS 46111
2017 Sanborn County, SD Power Outage Report
In 2017, customers in Sanborn County, SD went without power for an average of 0.1 hours, a total of 163 customer-hours (South Dakota average 0.8 hours). That ranks 21st worst of 26 South Dakota counties and 2553rd of 2,786 nationally.
Compared with SD, the US and 2016
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Sanborn County, 2017
The 6 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 21, 2017 12:15 | November 21, 2017 12:30 | 15m | 179 | 45 |
| 2 | August 16, 2017 13:30 | August 16, 2017 15:15 | 1h 45m | 64 | 52 |
| 3 | July 25, 2017 22:15 | July 26, 2017 02:15 | 4h | 11 | 35 |
| 4 | July 31, 2017 11:15 | July 31, 2017 15:00 | 3h 45m | 9 | 28 |
| 5 | May 8, 2017 15:15 | May 8, 2017 15:30 | 15m | 1 | 0 |
| 6 | July 21, 2017 10:30 | July 21, 2017 13:30 | 3h | 1 | 3 |
Outage episodes by size in 2017: 1 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 Sanborn County reported on EIA Form 861 for 2017, 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 | 2017 | 1.6 hrs | 0.73 | 58 min | 0.61 |
| NorthWestern Energy - (SD) | 2017 | 1.8 hrs | 1.41 | 84 min | 1.24 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Dakota Energy Coop Inc | - | - | - | - | - |
| 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 2017; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,463 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. Sanborn County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Sanborn County, SD annual power outage report, 2017, 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/2017/south-dakota/sanborn-county