County annual report · FIPS 46105
2022 Perkins County, SD Power Outage Report
In 2022, customers in Perkins County, SD went without power for an average of 110.9 hours, a total of 99K customer-hours (South Dakota average 6.9 hours). That ranks 1st worst of 63 South Dakota counties and 19th 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 Perkins 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 | April 24, 2022 03:30 | April 25, 2022 21:00 | 1d 17h | 1,609 | 19K |
| 2 | April 12, 2022 12:00 | April 12, 2022 18:15 | 6h 15m | 1,232 | 900 |
| 3 | October 7, 2022 16:15 | October 7, 2022 20:45 | 4h 30m | 1,133 | 1,829 |
| 4 | September 14, 2022 12:45 | September 16, 2022 21:00 | 2d 8h | 821 | 37K |
| 5 | August 16, 2022 15:15 | August 17, 2022 16:00 | 1d | 448 | 4,949 |
| 6 | December 13, 2022 20:15 | December 14, 2022 07:00 | 10h 45m | 448 | 2,384 |
| 7 | December 14, 2022 08:15 | December 14, 2022 21:45 | 13h 30m | 448 | 3,253 |
| 8 | April 13, 2022 21:30 | April 14, 2022 17:30 | 20h | 317 | 4,519 |
| 9 | April 8, 2022 15:15 | April 8, 2022 19:00 | 3h 45m | 294 | 1,103 |
| 10 | December 17, 2022 22:15 | December 17, 2022 22:45 | 30m | 292 | 81 |
Outage episodes by size in 2022: 28 reached 100+ customers, 3 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 Perkins 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 |
|---|---|---|---|---|---|
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Montana-Dakota Utilities Co | - | - | - | - | - |
| Grand Electric Coop, Inc | - | - | - | - | - |
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 ÷ 890 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. Perkins County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Perkins 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/). https://massoutage.com/reports/2022/south-dakota/perkins-county