County annual report · FIPS 46125
2023 Turner County, SD Power Outage Report
In 2023, customers in Turner County, SD went without power for an average of 4.3 hours, a total of 21K customer-hours (South Dakota average 2.3 hours). That ranks 11th worst of 61 South Dakota counties and 1620th of 2,977 nationally.
Compared with SD, the US and 2022
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Turner County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 10, 2023 18:30 | July 12, 2023 17:30 | 1d 23h | 1,113 | 5,044 |
| 2 | April 13, 2023 23:15 | April 17, 2023 18:15 | 3d 19h | 539 | 1,609 |
| 3 | January 26, 2023 02:30 | January 26, 2023 08:45 | 6h 15m | 247 | 449 |
| 4 | May 2, 2023 19:30 | May 9, 2023 12:45 | 6d 17h | 210 | 1,747 |
| 5 | May 31, 2023 15:00 | June 1, 2023 19:30 | 1d 4h | 194 | 175 |
| 6 | October 12, 2023 15:45 | October 19, 2023 00:30 | 6d 8h | 107 | 292 |
| 7 | June 2, 2023 19:00 | June 5, 2023 15:00 | 2d 20h | 92 | 165 |
| 8 | July 9, 2023 01:15 | July 9, 2023 01:45 | 30m | 74 | 37 |
| 9 | August 22, 2023 13:30 | August 22, 2023 15:15 | 1h 45m | 69 | 81 |
| 10 | June 25, 2023 10:30 | July 5, 2023 15:15 | 10d 4h | 49 | 629 |
Outage episodes by size in 2023: 6 reached 100+ customers, 1 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 2023, 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 | 2023 | 1.7 hrs | 0.86 | 74 min | 0.77 |
| NorthWestern Energy - (SD) | 2023 | 1.9 hrs | 1.37 | 74 min | 1.03 |
| Sioux Valley SW Elec Coop | 2023 | 60 min | 1.46 | 60 min | 1.46 |
| 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 2023; 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, 2023, 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/2023/south-dakota/turner-county