County annual report · FIPS 46123
2024 Tripp County, SD Power Outage Report
In 2024, customers in Tripp County, SD went without power for an average of 1.2 hours, a total of 5,528 customer-hours (South Dakota average 2.3 hours). That ranks 44th worst of 65 South Dakota counties and 2674th 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 Tripp County, 2024
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 30, 2024 00:30 | July 30, 2024 07:30 | 7h | 591 | 1,422 |
| 2 | October 20, 2024 17:15 | October 20, 2024 18:45 | 1h 30m | 288 | 363 |
| 3 | December 2, 2024 00:15 | December 2, 2024 14:30 | 14h 15m | 288 | 777 |
| 4 | August 6, 2024 13:00 | August 6, 2024 14:00 | 1h | 287 | 220 |
| 5 | July 30, 2024 09:15 | July 30, 2024 17:30 | 8h 15m | 248 | 170 |
| 6 | December 8, 2024 18:30 | December 8, 2024 19:30 | 1h | 196 | 149 |
| 7 | May 9, 2024 13:15 | May 10, 2024 17:30 | 1d 4h | 103 | 357 |
| 8 | April 24, 2024 17:15 | April 24, 2024 19:30 | 2h 15m | 98 | 196 |
| 9 | May 13, 2024 20:00 | May 13, 2024 21:45 | 1h 45m | 98 | 172 |
| 10 | September 12, 2024 17:00 | September 12, 2024 18:15 | 1h 15m | 52 | 37 |
Outage episodes by size in 2024: 7 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 Tripp 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 |
|---|---|---|---|---|---|
| Rosebud Electric Coop Inc | 2024 | 1.9 hrs | 0.84 | 1.6 hrs | 0.76 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Winner Municipal Utility | - | - | - | - | - |
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 ÷ 4,744 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. Tripp County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Tripp 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/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2024/south-dakota/tripp-county