County annual report · FIPS 46083
2021 Lincoln County, SD Power Outage Report
In 2021, customers in Lincoln County, SD went without power for an average of 3.1 hours, a total of 97K customer-hours (South Dakota average 3.4 hours). That ranks 28th worst of 61 South Dakota counties and 1810th 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 Lincoln County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 28, 2021 21:45 | August 31, 2021 02:45 | 2d 5h | 3,006 | 50K |
| 2 | June 3, 2021 14:00 | June 3, 2021 19:45 | 5h 45m | 2,529 | 1,933 |
| 3 | November 30, 2021 15:45 | November 30, 2021 22:00 | 6h 15m | 2,461 | 1,250 |
| 4 | November 22, 2021 16:15 | November 22, 2021 17:15 | 1h | 2,445 | 1,834 |
| 5 | September 21, 2021 12:30 | September 21, 2021 21:45 | 9h 15m | 1,779 | 941 |
| 6 | April 24, 2021 17:45 | April 27, 2021 17:15 | 2d 23h | 1,685 | 1,840 |
| 7 | May 4, 2021 12:30 | May 4, 2021 22:30 | 10h | 1,298 | 1,328 |
| 8 | June 18, 2021 14:00 | July 27, 2021 13:30 | 38d 23h | 1,293 | 5,755 |
| 9 | December 16, 2021 01:00 | December 17, 2021 21:00 | 1d 20h | 758 | 1,420 |
| 10 | June 7, 2021 11:45 | June 16, 2021 21:00 | 9d 9h | 525 | 5,176 |
Outage episodes by size in 2021: 20 reached 100+ customers, 8 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 Lincoln 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 |
|---|---|---|---|---|---|
| Northern States Power Co - Minnesota | 2021 | 1.8 hrs | 0.82 | 77 min | 0.74 |
| MidAmerican Energy Co | 2021 | 1.9 hrs | 1.04 | 75 min | 0.74 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Southeastern Electric Coop Inc - (SD) | - | - | - | - | - |
| Clay-Union Electric Corp | - | - | - | - | - |
| City of Beresford | - | - | - | - | - |
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 ÷ 31,561 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. Lincoln County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Lincoln 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/lincoln-county