County annual report · FIPS 46011
2024 Brookings County, SD Power Outage Report
In 2024, customers in Brookings County, SD went without power for an average of 1.8 hours, a total of 34K customer-hours (South Dakota average 2.3 hours). That ranks 31st worst of 65 South Dakota counties and 2468th 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 Brookings 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 | November 19, 2024 10:15 | November 19, 2024 11:45 | 1h 30m | 465 | 546 |
| 2 | May 6, 2024 14:00 | May 7, 2024 14:30 | 1d | 455 | 176 |
| 3 | July 19, 2024 12:15 | July 19, 2024 12:30 | 15m | 426 | 107 |
| 4 | July 22, 2024 13:15 | August 12, 2024 19:15 | 21d 6h | 386 | 21K |
| 5 | July 5, 2024 02:00 | July 5, 2024 02:45 | 45m | 368 | 273 |
| 6 | February 29, 2024 16:00 | March 25, 2024 12:30 | 24d 20h | 354 | 1,725 |
| 7 | July 4, 2024 15:00 | July 4, 2024 15:15 | 15m | 354 | 89 |
| 8 | October 29, 2024 21:30 | October 29, 2024 22:15 | 45m | 311 | 129 |
| 9 | December 26, 2024 13:45 | December 27, 2024 17:00 | 1d 3h | 311 | 2,867 |
| 10 | October 25, 2024 18:45 | October 25, 2024 19:15 | 30m | 247 | 124 |
Outage episodes by size in 2024: 13 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 Brookings 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 |
|---|---|---|---|---|---|
| Otter Tail Power Co | 2024 | 2.6 hrs | 1.37 | 1.9 hrs | 1.09 |
| Sioux Valley SW Elec Coop | 2024 | 46 min | 0.92 | 46 min | 0.92 |
| H-D Electric Coop Inc | 2018 | 2.6 hrs | 1.52 | 1.6 hrs | 1.14 |
| City of Brookings - (SD) | 2024 | 11 min | 0.14 | 11 min | 0.14 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Kingsbury Electric Coop, Inc | - | - | - | - | - |
| City of Arlington - (SD) | - | - | - | - | - |
| City of Aurora - (SD) | - | - | - | - | - |
| City of Volga - (SD) | - | - | - | - | - |
| City of White - (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 ÷ 19,030 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. Brookings County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Brookings 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/brookings-county