County annual report · FIPS 46017
2023 Buffalo County, SD Power Outage Report
In 2023, customers in Buffalo County, SD went without power for an average of 1.1 hours, a total of 649 customer-hours (South Dakota average 2.3 hours). That ranks 46th worst of 61 South Dakota counties and 2641st 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 Buffalo 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 | December 25, 2023 19:15 | December 25, 2023 21:30 | 2h 15m | 56 | 114 |
| 2 | December 27, 2023 16:30 | December 27, 2023 18:30 | 2h | 27 | 54 |
| 3 | October 28, 2023 07:45 | October 28, 2023 14:45 | 7h | 25 | 150 |
| 4 | May 17, 2023 18:15 | May 17, 2023 22:00 | 3h 45m | 14 | 49 |
| 5 | September 9, 2023 21:00 | September 10, 2023 01:00 | 4h | 10 | 40 |
| 6 | October 25, 2023 17:15 | October 25, 2023 21:15 | 4h | 10 | 40 |
| 7 | March 1, 2023 13:15 | March 1, 2023 17:15 | 4h | 6 | 17 |
| 8 | April 19, 2023 20:45 | April 19, 2023 22:00 | 1h 15m | 6 | 7 |
| 9 | December 26, 2023 17:30 | December 26, 2023 20:00 | 2h 30m | 6 | 10 |
| 10 | March 31, 2023 21:15 | March 31, 2023 23:00 | 1h 45m | 4 | 6 |
Outage episodes by size in 2023: 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 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 |
|---|---|---|---|---|---|
| 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 2023; 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, 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/). https://massoutage.com/reports/2023/south-dakota/buffalo-county