County annual report · FIPS 46009
2023 Bon Homme County, SD Power Outage Report
In 2023, customers in Bon Homme County, SD went without power for an average of 0.9 hours, a total of 2,699 customer-hours (South Dakota average 2.3 hours). That ranks 50th worst of 61 South Dakota counties and 2700th 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 Bon Homme 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 | February 27, 2023 16:00 | February 27, 2023 19:00 | 3h | 683 | 746 |
| 2 | June 16, 2023 23:45 | June 17, 2023 01:45 | 2h | 449 | 711 |
| 3 | August 31, 2023 22:15 | August 31, 2023 23:15 | 1h | 436 | 436 |
| 4 | July 12, 2023 09:30 | July 12, 2023 17:15 | 7h 45m | 66 | 204 |
| 5 | July 12, 2023 18:15 | July 12, 2023 21:15 | 3h | 65 | 143 |
| 6 | April 1, 2023 03:15 | April 1, 2023 06:45 | 3h 30m | 48 | 105 |
| 7 | March 2, 2023 08:15 | March 2, 2023 11:15 | 3h | 46 | 48 |
| 8 | October 24, 2023 07:15 | October 24, 2023 11:00 | 3h 45m | 18 | 42 |
| 9 | February 16, 2023 14:45 | February 16, 2023 18:15 | 3h 30m | 10 | 18 |
| 10 | November 23, 2023 16:30 | November 23, 2023 20:00 | 3h 30m | 10 | 19 |
Outage episodes by size in 2023: 3 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 Bon Homme 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 |
|---|---|---|---|---|---|
| NorthWestern Energy - (SD) | 2023 | 1.9 hrs | 1.37 | 74 min | 1.03 |
| 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 n/a of South Dakota's customers in 2023; 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, 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/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2023/south-dakota/bon-homme-county