County annual report · FIPS 46105
2023 Perkins County, SD Power Outage Report
In 2023, customers in Perkins County, SD went without power for an average of 26.1 hours, a total of 23K customer-hours (South Dakota average 2.3 hours). That ranks 3rd worst of 61 South Dakota counties and 288th of 2,977 nationally.
Compared with SD, the US and 2022
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Perkins County, 2023
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 25, 2023 04:15 | January 25, 2023 15:15 | 11h | 1,137 | 13K |
| 2 | March 11, 2023 17:45 | March 11, 2023 19:30 | 1h 45m | 806 | 437 |
| 3 | May 22, 2023 18:30 | May 30, 2023 21:45 | 8d 3h | 610 | 1,873 |
| 4 | July 28, 2023 14:00 | July 30, 2023 21:45 | 2d 7h | 418 | 274 |
| 5 | January 23, 2023 17:45 | January 23, 2023 21:45 | 4h | 297 | 1,040 |
| 6 | September 19, 2023 16:00 | September 19, 2023 17:30 | 1h 30m | 294 | 441 |
| 7 | November 6, 2023 19:15 | November 6, 2023 21:30 | 2h 15m | 294 | 295 |
| 8 | June 24, 2023 04:15 | June 24, 2023 04:30 | 15m | 256 | 64 |
| 9 | July 23, 2023 11:00 | July 24, 2023 22:30 | 1d 11h | 206 | 343 |
| 10 | January 13, 2023 16:45 | January 14, 2023 00:00 | 7h 15m | 196 | 717 |
Outage episodes by size in 2023: 20 reached 100+ customers, 1 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 2023, 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 n/a of South Dakota's customers in 2023; 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, 2023, 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/2023/south-dakota/perkins-county