County annual report · FIPS 46111
2022 Sanborn County, SD Power Outage Report
In 2022, customers in Sanborn County, SD went without power for an average of 23.5 hours, a total of 34K customer-hours (South Dakota average 6.9 hours). That ranks 13th worst of 63 South Dakota counties and 271st 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 Sanborn 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 | July 5, 2022 19:00 | July 7, 2022 03:30 | 1d 8h | 1,317 | 5,604 |
| 2 | May 12, 2022 22:00 | May 15, 2022 02:45 | 2d 4h | 1,070 | 13K |
| 3 | July 4, 2022 12:45 | July 4, 2022 16:30 | 3h 45m | 742 | 2,698 |
| 4 | May 8, 2022 21:30 | May 8, 2022 23:15 | 1h 45m | 559 | 839 |
| 5 | July 3, 2022 21:15 | July 4, 2022 03:15 | 6h | 559 | 2,101 |
| 6 | December 30, 2022 16:30 | December 30, 2022 20:15 | 3h 45m | 556 | 696 |
| 7 | October 13, 2022 16:45 | October 13, 2022 18:00 | 1h 15m | 555 | 556 |
| 8 | March 7, 2022 20:15 | March 8, 2022 00:15 | 4h | 410 | 732 |
| 9 | August 3, 2022 01:00 | August 3, 2022 05:30 | 4h 30m | 296 | 529 |
| 10 | May 30, 2022 12:30 | May 31, 2022 17:15 | 1d 4h | 211 | 1,466 |
Outage episodes by size in 2022: 19 reached 100+ customers, 2 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 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 | - | - | - | - | - |
| 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 89% of South Dakota's customers in 2022; 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, 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/sanborn-county