County annual report · FIPS 46087
2017 McCook County, SD Power Outage Report
In 2017, customers in McCook County, SD went without power for an average of 0.7 hours, a total of 2,267 customer-hours (South Dakota average 0.8 hours). That ranks 12th worst of 26 South Dakota counties and 2171st of 2,786 nationally.
Compared with SD, the US and 2016
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in McCook County, 2017
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 18, 2017 08:00 | July 18, 2017 11:30 | 3h 30m | 389 | 1,362 |
| 2 | November 20, 2017 17:30 | November 20, 2017 21:00 | 3h 30m | 131 | 127 |
| 3 | November 21, 2017 04:30 | November 21, 2017 05:00 | 30m | 131 | 57 |
| 4 | May 1, 2017 13:45 | May 1, 2017 22:00 | 8h 15m | 117 | 352 |
| 5 | May 18, 2017 09:30 | May 18, 2017 12:00 | 2h 30m | 19 | 48 |
| 6 | December 29, 2017 18:00 | December 29, 2017 19:15 | 1h 15m | 19 | 24 |
| 7 | May 15, 2017 14:30 | May 15, 2017 17:00 | 2h 30m | 11 | 13 |
| 8 | June 21, 2017 01:00 | June 21, 2017 02:30 | 1h 30m | 11 | 12 |
| 9 | September 20, 2017 04:00 | September 20, 2017 10:45 | 6h 45m | 9 | 42 |
| 10 | October 19, 2017 23:15 | October 20, 2017 00:30 | 1h 15m | 9 | 9 |
Outage episodes by size in 2017: 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 McCook County reported on EIA Form 861 for 2017, 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 |
|---|---|---|---|---|---|
| Northern States Power Co - Minnesota | 2017 | 1.6 hrs | 0.73 | 58 min | 0.61 |
| Sioux Valley SW Elec Coop | 2017 | 2.3 hrs | 1.61 | 88 min | 1.43 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Southeastern Electric Coop 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 2017; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,102 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. McCook County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), McCook County, SD annual power outage report, 2017, 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/2017/south-dakota/mccook-county