County annual report · FIPS 46099
2016 Minnehaha County, SD Power Outage Report
In 2016, customers in Minnehaha County, SD went without power for an average of 1.0 hours, a total of 96K customer-hours (South Dakota average 0.9 hours). That ranks 5th worst of 15 South Dakota counties and 1753rd 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 Minnehaha County, 2016
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 29, 2016 04:30 | April 29, 2016 07:45 | 3h 15m | 7,515 | 14K |
| 2 | June 9, 2016 21:45 | June 10, 2016 11:00 | 13h 15m | 4,815 | 4,161 |
| 3 | June 18, 2016 00:45 | June 19, 2016 04:30 | 1d 3h | 4,461 | 14K |
| 4 | February 20, 2016 14:15 | February 20, 2016 18:45 | 4h 30m | 4,005 | 5,835 |
| 5 | May 24, 2016 19:15 | May 24, 2016 23:30 | 4h 15m | 2,715 | 2,724 |
| 6 | July 2, 2016 19:30 | July 3, 2016 00:15 | 4h 45m | 2,642 | 3,970 |
| 7 | June 11, 2016 16:30 | June 12, 2016 10:00 | 17h 30m | 2,638 | 5,371 |
| 8 | January 25, 2016 17:45 | January 25, 2016 18:15 | 30m | 2,151 | 664 |
| 9 | June 20, 2016 06:00 | June 20, 2016 09:30 | 3h 30m | 2,035 | 4,071 |
| 10 | July 7, 2016 03:00 | July 7, 2016 11:00 | 8h | 1,777 | 4,496 |
Outage episodes by size in 2016: 41 reached 100+ customers, 13 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 Minnehaha 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 |
|---|---|---|---|---|---|
| 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 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Southeastern Electric Coop Inc - (SD) | - | - | - | - | - |
| City of Sioux Falls - (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 ÷ 91,940 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. Minnehaha County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Minnehaha 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/minnehaha-county