County annual report · FIPS 46035
2022 Davison County, SD Power Outage Report
In 2022, customers in Davison County, SD went without power for an average of 4.1 hours, a total of 48K customer-hours (South Dakota average 6.9 hours). That ranks 32nd worst of 63 South Dakota counties and 1625th 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 Davison 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 21:30 | May 13, 2022 03:15 | 5h 45m | 6,327 | 25K |
| 2 | July 26, 2022 17:15 | July 26, 2022 19:45 | 2h 30m | 6,153 | 12K |
| 3 | July 5, 2022 19:45 | July 6, 2022 20:30 | 1d | 2,055 | 5,204 |
| 4 | November 8, 2022 19:45 | November 8, 2022 21:45 | 2h | 448 | 896 |
| 5 | May 30, 2022 08:30 | May 30, 2022 10:45 | 2h 15m | 346 | 779 |
| 6 | April 23, 2022 22:00 | April 24, 2022 01:30 | 3h 30m | 277 | 970 |
| 7 | October 23, 2022 23:45 | October 24, 2022 01:30 | 1h 45m | 243 | 194 |
| 8 | April 23, 2022 15:00 | April 23, 2022 17:45 | 2h 45m | 224 | 560 |
| 9 | November 28, 2022 17:00 | November 28, 2022 19:15 | 2h 15m | 69 | 139 |
| 10 | June 22, 2022 11:15 | June 22, 2022 12:30 | 1h 15m | 46 | 35 |
Outage episodes by size in 2022: 8 reached 100+ customers, 3 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 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 |
| 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 89% of South Dakota's customers in 2022; 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, 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/davison-county