Cost to Charge a Cadillac Optiq in South Dakota

$15.82 for a full charge at 15.36¢/kWh — $5.22 per 100 miles, about $627 a year.

Cadillac Optiq in South Dakota

$15.82 for a full charge

Per 100 miles: $5.22
Per mile: $0.05
Per year: $627
vs petrol / yr: $1,007

Electricity per year
Petrol per year

The full picture

Charging cost breakdown for a Cadillac Optiq
Item	Energy	Cost
This charge	103.0 kWh	$15.82
Full charge (0–100%)	103.0 kWh	$15.82
Per 100 miles	34.0 kWh	$5.22
Per year (12,000 mi)	4080.0 kWh	$627
Same year on petrol (30 mpg)	—	$1,634
Difference	—	$1,007

What charging actually costs here

Filling a Cadillac Optiq from empty in South Dakota costs $15.82. The car draws 103.0 kWh from the wall for a full 303-mile charge, and South Dakota residential electricity averages 15.36¢ per kWh. That works out at $5.22 per 100 miles, or $0.05 a mile.

South Dakota is cheaper than average: 15.36¢ against a national mean of 19.42¢, which ranks it 19 of 51 for electricity price. The same car costs $13.51 to fill in Nevada and $54.31 in Hawaii — a 4.0× spread across the country for identical driving.

Against a petrol car doing 30 mpg at $4.09 a gallon, electricity here is 2.6× cheaper per mile: $5.22 versus $13.62 per 100 miles. Over 12,000 miles a year that is $1,007 saved.

Similar EVs in South Dakota

Charging cost of comparable EVs in South Dakota
Vehicle	Per 100 mi	Full charge	Per year
Mercedes-Benz EQS	34 kWh	$20.37	$627
Honda Prologue	34.1 kWh	$15.40	$629
Nissan Ariya	34.4 kWh	$15.27	$634
Polestar 2	33.5 kWh	$14.30	$617
Mini Cooper SE	34.6 kWh	$11.48	$638
Porsche Macan Electric	34.6 kWh	$16.42	$638

The same car in nearby-priced states

Charging a Cadillac Optiq in states with similar electricity prices
State	¢/kWh	Full charge	Per year
Montana	15.14	$15.60	$618
Arizona	15.18	$15.64	$619
Wyoming	15.24	$15.70	$622
West Virginia	15.45	$15.92	$630
South Carolina	15.55	$16.02	$634
Kansas	15.71	$16.18	$641

Frequently asked questions

How much does it cost to charge a Cadillac Optiq in South Dakota?

$15.82 for a full charge from empty. The car needs 103.0 kWh at the wall and South Dakota residential electricity averages 15.36¢ per kWh.

How much does a Cadillac Optiq cost per mile in South Dakota?

About $0.05 a mile, or $5.22 per 100 miles. Over 12,000 miles a year that is roughly $627 of electricity.

Is charging a Cadillac Optiq cheaper than petrol in South Dakota?

Yes — 2.6 times cheaper per mile. Electricity costs $5.22 per 100 miles here against $13.62 for a 30 mpg petrol car at $4.09 a gallon, a saving of about $1,007 a year.

How long does a full charge last?

The EPA rates the Cadillac Optiq at 303 miles combined. Cold weather, motorway speeds and a loaded car all reduce that; the EPA number is a standardised test, not a guarantee.

Does this include charging losses?

Yes. The EPA's 34 kWh/100 mi figure is measured at the wall socket, so the energy lost in the charger and cabling is already in the number. No extra efficiency factor is applied.

Vehicle data: EPA fueleconomy.gov, model years 2025-2027. Electricity: EIA Electric Power Monthly Table 5.6.A, residential, June 2026. Petrol: EIA weekly retail gasoline price, 24 August 2026.

Estimates for informational purposes only. Real charging cost depends on your tariff, time of use, charger efficiency, temperature, driving style and state of charge. EPA figures are a standardised test result, not a promise about your car.