County annual report · FIPS 46115
2023 Spink County, SD Power Outage Report
In 2023, customers in Spink County, SD went without power for an average of 1.2 hours, a total of 4,010 customer-hours (South Dakota average 2.3 hours). That ranks 42nd worst of 61 South Dakota counties and 2597th 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 Spink 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 | July 4, 2023 05:15 | July 4, 2023 07:15 | 2h | 499 | 875 |
| 2 | January 27, 2023 08:30 | January 27, 2023 14:45 | 6h 15m | 239 | 860 |
| 3 | May 13, 2023 03:30 | May 13, 2023 05:15 | 1h 45m | 171 | 299 |
| 4 | April 1, 2023 00:00 | April 1, 2023 15:15 | 15h 15m | 144 | 765 |
| 5 | February 25, 2023 18:45 | February 25, 2023 19:45 | 1h | 66 | 34 |
| 6 | June 22, 2023 14:00 | June 22, 2023 18:15 | 4h 15m | 55 | 234 |
| 7 | February 6, 2023 16:30 | February 7, 2023 00:30 | 8h | 22 | 109 |
| 8 | December 22, 2023 15:15 | December 22, 2023 21:00 | 5h 45m | 21 | 121 |
| 9 | February 8, 2023 19:15 | February 9, 2023 00:15 | 5h | 18 | 90 |
| 10 | August 10, 2023 18:15 | August 10, 2023 21:15 | 3h | 18 | 54 |
Outage episodes by size in 2023: 4 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 Spink 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 |
|---|---|---|---|---|---|
| NorthWestern Energy - (SD) | 2023 | 1.9 hrs | 1.37 | 74 min | 1.03 |
| Northern Electric Coop, Inc | 2023 | 74 min | 0.67 | 54 min | 0.55 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Dakota Energy Coop Inc | - | - | - | - | - |
| Codington-Clark Elec Coop, Inc | - | - | - | - | - |
| Lake Region Electric Assn, 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 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,353 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. Spink County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Spink 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/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2023/south-dakota/spink-county