County annual report · FIPS 46005
2020 Beadle County, SD Power Outage Report
In 2020, customers in Beadle County, SD went without power for an average of 5.9 hours, a total of 58K customer-hours (South Dakota average 4.6 hours). That ranks 16th worst of 62 South Dakota counties and 1257th of 3,019 nationally.
Compared with SD, the US and 2019
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Beadle County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 18, 2020 06:00 | June 20, 2020 21:45 | 2d 15h | 7,612 | 32K |
| 2 | January 4, 2020 02:45 | January 4, 2020 07:45 | 5h | 1,724 | 6,130 |
| 3 | October 9, 2020 20:45 | October 10, 2020 03:15 | 6h 30m | 1,579 | 5,924 |
| 4 | June 5, 2020 09:00 | June 5, 2020 11:00 | 2h | 792 | 1,584 |
| 5 | August 9, 2020 06:45 | August 9, 2020 08:30 | 1h 45m | 792 | 1,188 |
| 6 | December 29, 2020 20:30 | December 29, 2020 23:00 | 2h 30m | 730 | 1,825 |
| 7 | March 20, 2020 04:45 | March 20, 2020 06:15 | 1h 30m | 678 | 828 |
| 8 | July 25, 2020 06:00 | July 25, 2020 09:00 | 3h | 380 | 1,140 |
| 9 | March 19, 2020 20:00 | March 19, 2020 23:15 | 3h 15m | 339 | 877 |
| 10 | August 28, 2020 06:30 | August 28, 2020 21:30 | 15h | 200 | 777 |
Outage episodes by size in 2020: 11 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 Beadle County reported on EIA Form 861 for 2020, 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) | 2020 | 2.6 hrs | 1.54 | 1.9 hrs | 1.28 |
| Northern Electric Coop, Inc | 2020 | 1.7 hrs | 0.62 | 1.6 hrs | 0.56 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| NorthWestern Energy | - | - | - | - | - |
| Dakota Energy Coop Inc | - | - | - | - | - |
| Codington-Clark Elec Coop, Inc | - | - | - | - | - |
| Kingsbury 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 79% of South Dakota's customers in 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 9,787 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. Beadle County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Beadle County, SD annual power outage report, 2020, 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/2020/south-dakota/beadle-county