County annual report · FIPS 46045
2022 Edmunds County, SD Power Outage Report
In 2022, customers in Edmunds County, SD went without power for an average of 1.8 hours, a total of 3,986 customer-hours (South Dakota average 6.9 hours). That ranks 50th worst of 63 South Dakota counties and 2357th 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 Edmunds 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 | November 9, 2022 15:45 | November 9, 2022 16:00 | 15m | 508 | 127 |
| 2 | January 8, 2022 19:00 | January 8, 2022 21:00 | 2h | 499 | 929 |
| 3 | June 14, 2022 08:45 | June 14, 2022 17:30 | 8h 45m | 345 | 786 |
| 4 | November 13, 2022 14:15 | November 13, 2022 15:00 | 45m | 315 | 236 |
| 5 | December 16, 2022 06:00 | December 16, 2022 06:45 | 45m | 306 | 230 |
| 6 | December 22, 2022 14:15 | December 22, 2022 15:00 | 45m | 306 | 230 |
| 7 | December 16, 2022 01:00 | December 16, 2022 01:15 | 15m | 289 | 72 |
| 8 | November 19, 2022 05:15 | November 19, 2022 05:30 | 15m | 213 | 53 |
| 9 | December 15, 2022 18:30 | December 15, 2022 18:45 | 15m | 184 | 46 |
| 10 | May 30, 2022 23:15 | May 31, 2022 03:15 | 4h | 164 | 488 |
Outage episodes by size in 2022: 10 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 Edmunds 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 |
|---|---|---|---|---|---|
| NorthWestern Energy - (SD) | 2022 | 2.1 hrs | 1.26 | 80 min | 1.01 |
| Northern Electric Coop, Inc | 2022 | 5.1 hrs | 1.09 | 1.8 hrs | 0.77 |
| FEM Electric Assn, Inc | 2018 | 3.8 hrs | 2.21 | 3.8 hrs | 2.21 |
| Montana-Dakota Utilities Co | - | - | - | - | - |
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 ÷ 2,191 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. Edmunds County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Edmunds 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/edmunds-county