County annual report · FIPS 46017
2022 Buffalo County, SD Power Outage Report
In 2022, customers in Buffalo County, SD went without power for an average of 1.9 hours, a total of 1,131 customer-hours (South Dakota average 6.9 hours). That ranks 48th worst of 63 South Dakota counties and 2333rd of 2,976 nationally.
Compared with SD, the US and 2021
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Buffalo County, 2022
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 5, 2022 15:45 | December 8, 2022 05:15 | 2d 13h | 84 | 308 |
| 2 | August 3, 2022 00:15 | August 3, 2022 03:15 | 3h | 58 | 160 |
| 3 | July 26, 2022 16:30 | July 26, 2022 17:45 | 1h 15m | 57 | 58 |
| 4 | October 26, 2022 20:30 | October 26, 2022 21:30 | 1h | 53 | 53 |
| 5 | April 22, 2022 23:45 | April 23, 2022 03:15 | 3h 30m | 52 | 34 |
| 6 | February 16, 2022 16:15 | February 16, 2022 18:45 | 2h 30m | 20 | 50 |
| 7 | July 24, 2022 01:15 | July 24, 2022 03:00 | 1h 45m | 20 | 31 |
| 8 | September 10, 2022 00:00 | September 10, 2022 02:30 | 2h 30m | 19 | 44 |
| 9 | April 13, 2022 13:15 | April 13, 2022 15:00 | 1h 45m | 17 | 26 |
| 10 | April 14, 2022 18:00 | April 14, 2022 20:15 | 2h 15m | 17 | 30 |
Outage episodes by size in 2022: 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 2022, 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 89% of South Dakota's customers in 2022; 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, 2022, 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/2022/south-dakota/buffalo-county