I respectfully disagree with using mpge. Yes in a textbook physics situation you can use an equivalent energy of gallon of gas. But IMHO real road life isn’t like the textbook. Before I bought an EV I compared miles/kWh with mpg, assumed it’d be off by 10%, then assumed another 10% loss converting AC to DC. I also compared with 15 mpg of used cars, not higher mpg of new ICE cars since i wasn’t going to buy a new ICE car anyway. I also assumed replacing the used ICE car every 7 years (the average lifespan for mine and my wife’s used cars) for $10k (today’s costs) with replacing the EV battery in 10 years for $10k (since I wasn’t getting an expensive Tesla). I also had to research increase in insurance premiums for full coverage on an expensive new car vs liability only on a used car. Last but not least are the average miles you drive per month. Lots and lots of variables, some of which are unique to each person’s situation.
Yep, highly variable depending on situation...that is why I tend to stick with “energy equivalence” and the price per equivalent unit of “fuel”. EV vs ICE on the vehicle purchase level introduces too many variables...calculation of the govt. subsidy offset is yet another variable.