EV vs Gas Savings in South Dakota (2026)
South Dakota electricity averages 11.8¢/kWh and gas runs $3.4/gallon. Driving an EV 12,000 miles costs $405/year in fuel. A 30 MPG gas car costs $1360/year.
Annual savings
$955
per year
5-year savings
$4,775
fuel only
EV fuel/yr
$405
11.8¢/kWh
Gas fuel/yr
$1,360
$3.4/gal
South Dakota beats the national average
The national average EV fuel savings is $728/year. South Dakota comes in $227/year higher. Cheap electricity (11.8¢/kWh) plus high gas ($3.4/gal) is a strong combination.
South Dakota EV vs gas: the full cost breakdown
| EV | Gas car | |
|---|---|---|
| Fuel rate | 11.8¢/kWh | $3.4/gal |
| Efficiency | 3.5 mi/kWh | 30 MPG |
| Annual fuel cost (12,000 mi) | $405 | $1,360 |
| 5-year fuel cost | $2,025 | $6,800 |
| EV fuel savings | $955/yr · $4,775 over 5 years | |
12,000 mi/yr · 3.5 mi/kWh EV · 30 MPG gas car · 2026 EIA and GasBuddy data · home charging only
Electricity: 11.8¢/kWh
4.3¢ below the national average of 16.1¢/kWh. At this rate, charging a 75 kWh battery pack from empty costs $8.85.
Source: EIA 2026 residential rates
Gas: $3.4/gallon
$0.2 above the national average of $3.2/gal. Filling a 15-gallon tank costs $51.0 in South Dakota.
Source: GasBuddy 2026 state averages
More EV data for South Dakota