County annual report · FIPS 46059
2021 Hand County, SD Power Outage Report
In 2021, customers in Hand County, SD went without power for an average of 0.9 hours, a total of 1,855 customer-hours (South Dakota average 3.4 hours). That ranks 51st worst of 61 South Dakota counties and 2689th of 2,974 nationally.
Compared with SD, the US and 2020
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Hand County, 2021
The 9 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 14, 2021 08:00 | July 15, 2021 00:15 | 16h 15m | 313 | 1,283 |
| 2 | September 14, 2021 16:00 | September 14, 2021 18:45 | 2h 45m | 276 | 397 |
| 3 | June 30, 2021 13:15 | June 30, 2021 19:30 | 6h 15m | 9 | 54 |
| 4 | June 24, 2021 13:15 | June 24, 2021 18:45 | 5h 30m | 8 | 44 |
| 5 | July 7, 2021 16:00 | July 7, 2021 23:30 | 7h 30m | 8 | 34 |
| 6 | March 11, 2021 04:15 | March 11, 2021 07:30 | 3h 15m | 5 | 16 |
| 7 | November 17, 2021 14:30 | November 17, 2021 18:30 | 4h | 5 | 20 |
| 8 | June 29, 2021 13:15 | June 29, 2021 16:15 | 3h | 2 | 6 |
| 9 | November 16, 2021 23:30 | November 17, 2021 01:00 | 1h 30m | 1 | 2 |
Outage episodes by size in 2021: 2 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 Hand County reported on EIA Form 861 for 2021, 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) | 2021 | 1.5 hrs | 0.95 | 81 min | 0.83 |
| Northern Electric Coop, Inc | 2021 | 2.0 hrs | 1.20 | 1.9 hrs | 1.18 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Dakota Energy Coop Inc | - | - | - | - | - |
| City of Miller - (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 79% of South Dakota's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,991 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. Hand County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Hand County, SD annual power outage report, 2021, 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/2021/south-dakota/hand-county