County annual report · FIPS 46017
2024 Buffalo County, SD Power Outage Report
In 2024, customers in Buffalo County, SD went without power for an average of 1.0 hours, a total of 595 customer-hours (South Dakota average 2.3 hours). That ranks 48th worst of 65 South Dakota counties and 2724th 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 Buffalo 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 | June 12, 2024 11:30 | June 12, 2024 13:45 | 2h 15m | 56 | 88 |
| 2 | May 22, 2024 14:30 | May 22, 2024 19:45 | 5h 15m | 49 | 110 |
| 3 | April 1, 2024 22:15 | April 2, 2024 01:00 | 2h 45m | 25 | 64 |
| 4 | July 19, 2024 15:00 | July 19, 2024 16:15 | 1h 15m | 24 | 29 |
| 5 | September 10, 2024 13:45 | September 10, 2024 14:30 | 45m | 24 | 18 |
| 6 | September 20, 2024 01:00 | September 20, 2024 02:45 | 1h 45m | 19 | 33 |
| 7 | November 7, 2024 23:45 | November 8, 2024 00:45 | 1h | 11 | 11 |
| 8 | October 18, 2024 15:15 | October 18, 2024 19:45 | 4h 30m | 6 | 21 |
| 9 | September 16, 2024 15:00 | September 16, 2024 16:15 | 1h 15m | 5 | 6 |
| 10 | May 24, 2024 17:00 | May 24, 2024 20:00 | 3h | 4 | 12 |
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 Buffalo 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 | - | - | - | - | - |
| Dakota Energy Coop Inc | - | - | - | - | - |
| Central Electric Coop, Inc - (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 ÷ 592 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. Buffalo County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Buffalo 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/buffalo-county