County annual report · FIPS 46009
2022 Bon Homme County, SD Power Outage Report
In 2022, customers in Bon Homme County, SD went without power for an average of 8.6 hours, a total of 25K customer-hours (South Dakota average 6.9 hours). That ranks 26th worst of 63 South Dakota counties and 846th 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 Bon Homme 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 | May 12, 2022 18:00 | May 14, 2022 05:45 | 1d 11h | 1,845 | 20K |
| 2 | January 29, 2022 23:45 | January 30, 2022 01:30 | 1h 45m | 649 | 1,136 |
| 3 | January 31, 2022 18:15 | January 31, 2022 23:30 | 5h 15m | 552 | 1,172 |
| 4 | December 18, 2022 00:45 | December 18, 2022 04:15 | 3h 30m | 514 | 1,240 |
| 5 | July 26, 2022 14:00 | July 26, 2022 17:30 | 3h 30m | 76 | 163 |
| 6 | April 23, 2022 21:00 | April 23, 2022 23:45 | 2h 45m | 75 | 206 |
| 7 | October 25, 2022 16:00 | October 25, 2022 19:00 | 3h | 38 | 67 |
| 8 | August 4, 2022 19:15 | August 4, 2022 20:15 | 1h | 34 | 34 |
| 9 | July 1, 2022 15:00 | July 1, 2022 17:15 | 2h 15m | 31 | 70 |
| 10 | December 28, 2022 19:45 | December 28, 2022 23:45 | 4h | 31 | 124 |
Outage episodes by size in 2022: 4 reached 100+ customers, 1 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 Bon Homme 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 |
|---|---|---|---|---|---|
| NorthWestern Energy - (SD) | 2022 | 2.1 hrs | 1.26 | 80 min | 1.01 |
| Bon Homme Yankton El Assn, Inc | 2018 | 34 min | 0.32 | 34 min | 0.32 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Southeastern Electric Coop Inc - (SD) | - | - | - | - | - |
| Charles Mix Electric Assn, Inc | - | - | - | - | - |
| City of Tyndall - (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 ÷ 2,917 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. Bon Homme County has data for 2020–2025.
Cite this report
MassOutage (massoutage.com), Bon Homme 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/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2022/south-dakota/bon-homme-county