Substations in South Dakota
Bywatts lists 78 named substations in South Dakota.
277 additional unnamed substations in South Dakota appear on the map only.
78Named
78Shown
355Total (incl. unnamed)
All 78 named substations in South Dakota
| Substation | Voltage class |
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| BISON | 230-344 kV |
| LANGE | 230-344 kV |
| LOOKOUT | 230-344 kV |
| MAURINE | 230-344 kV |
| NEW UNDERWOOD | 230-344 kV |
| RAPID CITY DC TIE | · |
| SOUTH RAPID CITY | 230-344 kV |
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| WEST HILL | 230-344 kV |
| YELLOW CREEK | 230-344 kV |
South Dakota at a glance
South Dakota has 28 operating power plants (4.2 GW, led by Hydro), 78 named substations, no data centers, 18 solar installers and 3 solar companies on Bywatts; retail electricity sales were 13.8 TWh in 2025 (EIA), up 14.1% over ten years.