County annual report · FIPS 46027
2024 Clay County, SD Power Outage Report
In 2024, customers in Clay County, SD went without power for an average of 0.0 hours, a total of 146 customer-hours (South Dakota average 2.3 hours). That ranks 64th worst of 65 South Dakota counties and 2966th of 2,990 nationally.
Compared with SD, the US and 2023
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Clay County, 2024
The 7 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 1, 2024 20:15 | July 1, 2024 21:30 | 1h 15m | 29 | 30 |
| 2 | November 28, 2024 17:15 | November 30, 2024 13:15 | 1d 20h | 11 | 59 |
| 3 | December 9, 2024 14:45 | December 9, 2024 21:45 | 7h | 11 | 20 |
| 4 | May 6, 2024 22:15 | May 6, 2024 23:15 | 1h | 10 | 10 |
| 5 | May 2, 2024 18:45 | May 2, 2024 19:45 | 1h | 9 | 9 |
| 6 | May 22, 2024 06:30 | May 22, 2024 09:15 | 2h 45m | 1 | 3 |
| 7 | October 31, 2024 21:30 | November 1, 2024 13:00 | 15h 30m | 1 | 16 |
Outage episodes by size in 2024: 0 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 Clay County reported on EIA Form 861 for 2024, 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 |
|---|---|---|---|---|---|
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Southeastern Electric Coop Inc - (SD) | - | - | - | - | - |
| Clay-Union Electric Corp | - | - | - | - | - |
| City of Vermillion - (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 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 8,444 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. Clay County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Clay County, SD annual power outage report, 2024, 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/). https://massoutage.com/reports/2024/south-dakota/clay-county