County annual report · FIPS 46125
2017 Turner County, SD Power Outage Report
In 2017, customers in Turner County, SD went without power for an average of 0.6 hours, a total of 3,220 customer-hours (South Dakota average 0.8 hours). That ranks 13th worst of 26 South Dakota counties and 2216th of 2,786 nationally.
Compared with SD, the US and 2016
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Turner County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 20, 2017 17:15 | November 20, 2017 21:00 | 3h 45m | 669 | 2,326 |
| 2 | November 21, 2017 04:30 | November 21, 2017 05:00 | 30m | 669 | 184 |
| 3 | September 1, 2017 09:30 | September 1, 2017 15:30 | 6h | 28 | 149 |
| 4 | September 14, 2017 14:15 | September 14, 2017 18:15 | 4h | 27 | 76 |
| 5 | April 29, 2017 16:00 | April 29, 2017 19:30 | 3h 30m | 11 | 34 |
| 6 | May 1, 2017 14:30 | May 1, 2017 22:00 | 7h 30m | 11 | 64 |
| 7 | October 3, 2017 01:30 | October 3, 2017 17:15 | 15h 45m | 10 | 158 |
| 8 | June 5, 2017 22:00 | June 5, 2017 23:15 | 1h 15m | 9 | 7 |
| 9 | June 23, 2017 15:00 | June 23, 2017 19:15 | 4h 15m | 9 | 38 |
| 10 | October 1, 2017 13:15 | October 1, 2017 16:45 | 3h 30m | 9 | 30 |
Outage episodes by size in 2017: 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 Turner County reported on EIA Form 861 for 2017, 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 | 2017 | 1.6 hrs | 0.73 | 58 min | 0.61 |
| NorthWestern Energy - (SD) | 2017 | 1.8 hrs | 1.41 | 84 min | 1.24 |
| Sioux Valley SW Elec Coop | 2017 | 2.3 hrs | 1.61 | 88 min | 1.43 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Southeastern Electric Coop Inc - (SD) | - | - | - | - | - |
| Clay-Union Electric Corp | - | - | - | - | - |
| City of Parker - (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 2017; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 4,964 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. Turner County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Turner County, SD annual power outage report, 2017, 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/2017/south-dakota/turner-county