County annual report · FIPS 46125
2019 Turner County, SD Power Outage Report
In 2019, customers in Turner County, SD went without power for an average of 6.2 hours, a total of 31K customer-hours (South Dakota average 3.8 hours). That ranks 9th worst of 58 South Dakota counties and 883rd of 2,945 nationally.
Compared with SD, the US and 2018
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Turner County, 2019
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 16, 2019 02:00 | August 16, 2019 07:45 | 5h 45m | 813 | 3,799 |
| 2 | December 1, 2019 04:00 | December 2, 2019 15:00 | 1d 11h | 790 | 2,171 |
| 3 | July 20, 2019 13:00 | July 22, 2019 09:30 | 1d 20h | 723 | 5,856 |
| 4 | August 11, 2019 02:45 | August 11, 2019 03:45 | 1h | 673 | 169 |
| 5 | September 11, 2019 03:00 | September 13, 2019 17:15 | 2d 14h | 377 | 2,623 |
| 6 | July 17, 2019 10:15 | July 17, 2019 19:45 | 9h 30m | 375 | 949 |
| 7 | June 18, 2019 23:30 | June 19, 2019 00:15 | 45m | 246 | 185 |
| 8 | June 7, 2019 16:15 | June 7, 2019 17:45 | 1h 30m | 215 | 257 |
| 9 | April 11, 2019 00:30 | April 14, 2019 00:30 | 3d | 125 | 2,819 |
| 10 | July 12, 2019 15:15 | July 15, 2019 14:30 | 2d 23h | 108 | 7,413 |
Outage episodes by size in 2019: 10 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 2019, 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 | 2018 | 90 min | 0.73 | 69 min | 0.62 |
| NorthWestern Energy - (SD) | 2018 | 1.9 hrs | 1.24 | 1.6 hrs | 1.13 |
| Sioux Valley SW Elec Coop | 2018 | 4.0 hrs | 3.62 | 2.0 hrs | 2.88 |
| 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 87% of South Dakota's customers in 2019; 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, 2019, 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/2019/south-dakota/turner-county