County annual report · FIPS 46035
2023 Davison County, SD Power Outage Report
In 2023, customers in Davison County, SD went without power for an average of 2.2 hours, a total of 26K customer-hours (South Dakota average 2.3 hours). That ranks 30th worst of 61 South Dakota counties and 2202nd 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 Davison 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 | July 26, 2023 03:45 | July 26, 2023 18:00 | 14h 15m | 3,518 | 11K |
| 2 | April 22, 2023 15:45 | April 22, 2023 19:15 | 3h 30m | 1,114 | 3,834 |
| 3 | April 19, 2023 07:00 | April 19, 2023 09:15 | 2h 15m | 814 | 1,820 |
| 4 | April 5, 2023 19:00 | April 5, 2023 21:15 | 2h 15m | 813 | 1,724 |
| 5 | January 3, 2023 03:30 | January 3, 2023 10:00 | 6h 30m | 448 | 1,569 |
| 6 | February 15, 2023 08:15 | February 15, 2023 13:00 | 4h 45m | 331 | 1,572 |
| 7 | May 11, 2023 10:15 | May 11, 2023 12:45 | 2h 30m | 283 | 708 |
| 8 | August 2, 2023 09:30 | August 2, 2023 12:45 | 3h 15m | 283 | 920 |
| 9 | October 30, 2023 20:00 | October 30, 2023 23:00 | 3h | 269 | 738 |
| 10 | April 4, 2023 17:15 | April 4, 2023 17:30 | 15m | 173 | 43 |
Outage episodes by size in 2023: 11 reached 100+ customers, 2 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 Davison 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 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| NorthWestern Energy | - | - | - | - | - |
| Central Electric Coop, Inc - (SD) | - | - | - | - | - |
| Douglas Electric Coop, Inc | - | - | - | - | - |
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 ÷ 11,593 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. Davison County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Davison 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/davison-county