County annual report · FIPS 46079
2016 Lake County, SD Power Outage Report
In 2016, customers in Lake County, SD went without power for an average of 0.1 hours, a total of 704 customer-hours (South Dakota average 0.9 hours). That ranks 14th worst of 15 South Dakota counties and 2232nd of 2,391 nationally.
Compared with SD, the US and 2015
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Lake County, 2016
The 8 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 23, 2016 11:45 | July 23, 2016 15:45 | 4h | 291 | 689 |
| 2 | April 26, 2016 17:45 | April 26, 2016 18:00 | 15m | 2 | 1 |
| 3 | June 4, 2016 11:45 | June 4, 2016 12:30 | 45m | 2 | 2 |
| 4 | June 10, 2016 04:00 | June 10, 2016 05:15 | 1h 15m | 2 | 2 |
| 5 | May 24, 2016 19:30 | May 24, 2016 20:30 | 1h | 1 | 1 |
| 6 | June 4, 2016 16:45 | June 4, 2016 17:45 | 1h | 1 | 1 |
| 7 | July 5, 2016 13:15 | July 5, 2016 21:15 | 8h | 1 | 8 |
| 8 | July 25, 2016 15:45 | July 25, 2016 17:15 | 1h 30m | 1 | 2 |
Outage episodes by size in 2016: 1 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 Lake County reported on EIA Form 861 for 2016, 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 |
|---|---|---|---|---|---|
| Otter Tail Power Co | 2016 | 7.2 hrs | 3.27 | 1.8 hrs | 2.87 |
| Northern States Power Co - Minnesota | 2016 | 2.3 hrs | 0.97 | 86 min | 0.84 |
| Sioux Valley SW Elec Coop | 2016 | 2.3 hrs | 1.69 | 2.3 hrs | 1.69 |
| Southeastern Electric Coop Inc - (SD) | - | - | - | - | - |
| City of Madison - (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 n/a of South Dakota's customers in 2016; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 8,064 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. Lake County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Lake County, SD annual power outage report, 2016, 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/2016/south-dakota/lake-county