County annual report · FIPS 46117
2022 Stanley County, SD Power Outage Report
In 2022, customers in Stanley County, SD went without power for an average of 1.1 hours, a total of 2,697 customer-hours (South Dakota average 6.9 hours). That ranks 56th worst of 63 South Dakota counties and 2682nd 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 Stanley 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 | March 20, 2022 18:15 | March 20, 2022 21:15 | 3h | 239 | 360 |
| 2 | March 30, 2022 14:30 | March 30, 2022 15:15 | 45m | 148 | 111 |
| 3 | December 16, 2022 02:15 | December 16, 2022 03:15 | 1h | 148 | 76 |
| 4 | January 6, 2022 14:00 | January 6, 2022 19:15 | 5h 15m | 67 | 131 |
| 5 | October 13, 2022 15:45 | October 13, 2022 21:00 | 5h 15m | 64 | 93 |
| 6 | April 25, 2022 19:00 | April 25, 2022 20:15 | 1h 15m | 54 | 64 |
| 7 | June 12, 2022 11:00 | June 27, 2022 06:00 | 14d 19h | 24 | 896 |
| 8 | May 4, 2022 20:30 | May 4, 2022 21:00 | 30m | 22 | 11 |
| 9 | December 13, 2022 22:30 | December 14, 2022 00:30 | 2h | 17 | 30 |
| 10 | April 18, 2022 18:15 | April 18, 2022 19:15 | 1h | 16 | 16 |
Outage episodes by size in 2022: 3 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 Stanley 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 |
|---|---|---|---|---|---|
| West Central Electric Coop Inc - (SD) | 2018 | 3.7 hrs | 1.25 | 1.5 hrs | 1.25 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| City of Fort Pierre - (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 ÷ 2,520 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. Stanley County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Stanley 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/stanley-county