County annual report · FIPS 46087
2022 McCook County, SD Power Outage Report
In 2022, customers in McCook County, SD went without power for an average of 33.2 hours, a total of 103K customer-hours (South Dakota average 6.9 hours). That ranks 8th worst of 63 South Dakota counties and 144th 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 McCook 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 | May 12, 2022 22:00 | June 2, 2022 12:15 | 20d 14h | 1,889 | 87K |
| 2 | July 5, 2022 02:00 | July 8, 2022 01:30 | 2d 23h | 748 | 8,218 |
| 3 | December 24, 2022 12:45 | December 24, 2022 16:15 | 3h 30m | 390 | 403 |
| 4 | July 13, 2022 16:15 | July 21, 2022 19:45 | 8d 3h | 381 | 382 |
| 5 | April 11, 2022 23:30 | April 12, 2022 00:45 | 1h 15m | 225 | 281 |
| 6 | August 3, 2022 02:15 | August 9, 2022 20:45 | 6d 18h | 196 | 685 |
| 7 | September 2, 2022 08:30 | November 7, 2022 13:30 | 66d 5h | 119 | 2,611 |
| 8 | April 23, 2022 11:15 | April 23, 2022 12:45 | 1h 30m | 106 | 159 |
| 9 | May 6, 2022 14:30 | May 11, 2022 15:00 | 5d | 96 | 322 |
| 10 | August 1, 2022 16:30 | August 1, 2022 17:30 | 1h | 95 | 71 |
Outage episodes by size in 2022: 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 McCook 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 |
|---|---|---|---|---|---|
| Northern States Power Co - Minnesota | 2022 | 4.0 hrs | 1.08 | 72 min | 0.72 |
| Sioux Valley SW Elec Coop | 2022 | 11.5 hrs | 2.53 | 2.2 hrs | 1.66 |
| 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 89% of South Dakota's customers in 2022; 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, 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/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2022/south-dakota/mccook-county