County annual report · FIPS 46117
2023 Stanley County, SD Power Outage Report
In 2023, customers in Stanley County, SD went without power for an average of 0.6 hours, a total of 1,530 customer-hours (South Dakota average 2.3 hours). That ranks 52nd worst of 61 South Dakota counties and 2795th 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 Stanley 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 | April 18, 2023 16:15 | April 18, 2023 16:30 | 15m | 502 | 126 |
| 2 | February 14, 2023 06:15 | February 14, 2023 08:15 | 2h | 288 | 412 |
| 3 | July 28, 2023 00:30 | July 28, 2023 02:00 | 1h 30m | 155 | 212 |
| 4 | July 19, 2023 02:15 | July 19, 2023 02:45 | 30m | 117 | 47 |
| 5 | December 28, 2023 21:30 | December 28, 2023 22:45 | 1h 15m | 89 | 46 |
| 6 | July 13, 2023 00:00 | July 13, 2023 02:15 | 2h 15m | 57 | 128 |
| 7 | January 13, 2023 19:15 | January 13, 2023 20:45 | 1h 30m | 54 | 81 |
| 8 | June 16, 2023 12:15 | June 16, 2023 13:45 | 1h 30m | 39 | 49 |
| 9 | October 25, 2023 18:45 | October 25, 2023 19:45 | 1h | 36 | 36 |
| 10 | December 23, 2023 19:00 | December 23, 2023 21:45 | 2h 45m | 33 | 34 |
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 Stanley 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 |
|---|---|---|---|---|---|
| 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 n/a of South Dakota's customers in 2023; 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, 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/stanley-county