- 12.5miles per $electricity-dollar (17.1c / kw-hr home charging costs)
- 17.1 miles per $gasoline-dollar ($3.10 per gallon last fillup).
UK figures:
- Right now my electricity price is 6p/kWh, but the wind is rather high today (Storm Darragh). Still there are tariffs that guarantee 7.5p (9¢) overnight for car charging. That gives 24.3 miles per $electricity.
- Petrol is ~£1.40 a litre here ($5.30 per US gallon). So, 9.8 miles per $gasoline.
All depends on the maturity of the process. 10% for a new design on a bleeding edge process is possibly viable. You'll then tweak the design and process to get the yield up.