South Dakota major outage reports
South Dakota is named in 14 DOE reports for 2014 to 2023, and South Dakota ranks 48th of 51 by count and 20th per resident. South Dakota runs above the U.S. average, at 15.6 per million people. South Dakota peaked in 2020 with 4; equipment failures and system operations lead with 50% of South Dakota's reports. The largest customer count in a South Dakota-only report is 4, dated 2 Feb 2021. Treat 14 as DOE-threshold filings, not every South Dakota outage.
South Dakota reports by year
South Dakota filed none in 2014 to 2018 and 14 in 2019 to 2023, with 29% of the South Dakota total landing in 2020.
South Dakota reports a year
- 0'14
- 0'15
- 0'16
- 0'17
- 0'18
- 2'19
- 4'20
- 4'21
- 2'22
- 2'23
What South Dakota reports are about
| Cause | Reports | Share |
|---|---|---|
| Equipment failures and system operations | 7 | 50% |
| Severe weather and natural disasters | 4 | 29% |
| Physical attacks, vandalism and suspicious activity | 3 | 21% |
| Type | Reports | Share |
|---|---|---|
| System Operations | 4 | 29% |
| Transmission Interruption | 3 | 21% |
| Severe Weather/Transmission Interruption | 3 | 21% |
| Vandalism | 2 | 14% |
5 of the 14 South Dakota reports also name another state, while 9 name South Dakota alone.
Largest South Dakota reports by customers affected
3 of 9 reports naming only South Dakota list customers, and 0 list 50,000 or more. Tables on this page show those South Dakota-only reports.
| Began | Area | Type | Customers | Length | MW |
|---|---|---|---|---|---|
| 2 Feb 2021 | South Dakota: Hughes County | Severe Weather/Transmission Interruption | 4 | 3.1 h | 5 |
| 2 Feb 2021 | South Dakota: Hughes County | Severe Weather/Transmission Interruption | 3 | 26.2 h | 5 |
| 18 Apr 2023 | South Dakota: Stanley County | System Operations | 1 | 24.5 h | 4 |
Longest South Dakota reports
| Began | Area | Type | Customers | Length | MW |
|---|---|---|---|---|---|
| 2 Feb 2021 | South Dakota: Hughes County | Severe Weather/Transmission Interruption | 3 | 26.2 h | 5 |
| 18 Apr 2023 | South Dakota: Stanley County | System Operations | 1 | 24.5 h | 4 |
| 12 May 2022 | South Dakota: Davison County | Transmission Interruption | — | 10.0 h | — |
| 22 Mar 2022 | South Dakota | Transmission Interruption | — | 4.4 h | — |
| 2 Feb 2021 | South Dakota: Hughes County | Severe Weather/Transmission Interruption | 4 | 3.1 h | 5 |
Latest South Dakota reports on file
| Began | Area | Type | Customers | Length | MW |
|---|---|---|---|---|---|
| 18 Apr 2023 | South Dakota: Stanley County | System Operations | 1 | 24.5 h | 4 |
| 22 Feb 2023 | South Dakota | Suspicious Activity | — | — | — |
| 12 May 2022 | South Dakota: Davison County | Transmission Interruption | — | 10.0 h | — |
| 22 Mar 2022 | South Dakota | Transmission Interruption | — | 4.4 h | — |
| 11 Jun 2021 | South Dakota: Brown County | Severe Weather/Transmission Interruption | — | 0.4 h | — |
| 2 Feb 2021 | South Dakota: Hughes County | Severe Weather/Transmission Interruption | 3 | 26.2 h | 5 |
| 2 Feb 2021 | South Dakota: Hughes County | Severe Weather/Transmission Interruption | 4 | 3.1 h | 5 |
| 20 Apr 2020 | South Dakota: Deuel County | Vandalism | — | 0.8 h | — |
| 5 Jun 2019 | South Dakota: Lincoln County | Vandalism | — | — | — |
Close in the ranking
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Sources
DOE OE-417 files hold 14 South Dakota reports; snapshot 9 Dec 2024, method.
Questions
How many South Dakota reports are in the DOE files?
South Dakota appears in 14 reports, 48th among states and DC, and 5 of them also name a second state.
Which South Dakota report lists the most customers?
In South Dakota-only reports the top customer count is 4, a Severe Weather/Transmission Interruption report that began 2 Feb 2021 (South Dakota: Hughes County).
What are typical OE-417 reports in South Dakota?
The top DOE type in South Dakota is System Operations; equipment failures and system operations cover 50% of South Dakota's reports.
Are outage reports in South Dakota going up?
South Dakota filed none in 2014 to 2018 and 14 in 2019 to 2023. The South Dakota count may also reflect new filing habits.