County annual report · FIPS 46115
2020 Spink County, SD Power Outage Report
In 2020, customers in Spink County, SD went without power for an average of 3.6 hours, a total of 12K customer-hours (South Dakota average 4.6 hours). That ranks 32nd worst of 62 South Dakota counties and 1709th of 3,019 nationally.
Compared with SD, the US and 2019
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Spink County, 2020
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 22, 2020 14:00 | April 22, 2020 18:00 | 4h | 2,219 | 5,029 |
| 2 | August 28, 2020 06:45 | August 28, 2020 09:15 | 2h 30m | 880 | 1,507 |
| 3 | April 6, 2020 20:15 | April 6, 2020 22:15 | 2h | 498 | 996 |
| 4 | August 8, 2020 15:45 | August 11, 2020 00:00 | 2d 8h | 244 | 1,024 |
| 5 | January 3, 2020 19:15 | January 3, 2020 23:30 | 4h 15m | 112 | 476 |
| 6 | November 6, 2020 11:00 | November 6, 2020 13:45 | 2h 45m | 107 | 268 |
| 7 | November 10, 2020 15:15 | November 10, 2020 18:00 | 2h 45m | 107 | 294 |
| 8 | November 18, 2020 15:00 | November 18, 2020 17:00 | 2h | 107 | 214 |
| 9 | October 30, 2020 19:00 | October 30, 2020 20:45 | 1h 45m | 92 | 161 |
| 10 | June 17, 2020 13:45 | June 17, 2020 23:15 | 9h 30m | 33 | 248 |
Outage episodes by size in 2020: 8 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 Spink County reported on EIA Form 861 for 2020, 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) | 2020 | 2.6 hrs | 1.54 | 1.9 hrs | 1.28 |
| Northern Electric Coop, Inc | 2020 | 1.7 hrs | 0.62 | 1.6 hrs | 0.56 |
| 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 79% of South Dakota's customers in 2020; 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, 2020, 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/2020/south-dakota/spink-county