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Pennington County, SD Energy

Electric utilities, power plants and charging stations in Pennington County, South Dakota.

South Dakota home electricity
15.37¢/kWh
July 2026
Regular gas, region
$4.15/gal
Midwest (PADD 2)
EV charging stations
27
60 ports
Electric utilities
4
Serving Pennington County

Electric utilities serving Pennington County

As reported to EIA for 2025. A utility may serve only part of the county. Customers and prices are for its whole South Dakota service area

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UtilityCustomers in stateHome priceHome bill
Black Hills Power, Inc.Investor Owned82,90015.12¢/kWh$106/mo
West River Electric Assn IncCooperative21,33215.16¢/kWh$136/mo
Black Hills Electric Coop, IncCooperative11,47814.79¢/kWh$166/mo
WAPA-- Western Area Power AdministrationFederal25Not reportedNot reported

EV charging in Pennington County

27 public stations, DC fast first

All 27

Alternative fuel stations

Power plants in Pennington County

278 MW of operating capacity

Swipe the table sideways to see more columns.

PlantFuelCapacity
Wild SpringsSolar128 MW
Ben FrenchNatural gas110 MW
Lange Generating StationNatural gas40.0 MW

Electricity rates and gas prices are state or regional averages. Utility service areas come from EIA Form 861 and are listed by county, so a utility listed here may not serve every address in the county.

Frequently asked questions

What electric company serves Pennington County?
Black Hills Power, Inc., West River Electric Assn Inc, Black Hills Electric Coop, Inc and 1 more report serving Pennington County to EIA. Check your bill or address with the utility to confirm which one serves you.
How many EV charging stations are in Pennington County?
There are 27 public EV charging stations in Pennington County with 60 ports, 10 of them with DC fast charging.
Are there power plants in Pennington County?
Yes. Pennington County has 3 operating power plants with 278 MW of capacity. The largest is Wild Springs (128 MW, solar).