Ahh..
Ah ok, a road tax question. I apologize I, most detractors are arguing total cost per mile. It doesn't matter how much taxes are levied on hybrids or EVs, PV plus EV will always be cheaper per mile. Gas prices are going to always go up in the long term, and if governments think that they are losing revenue then they will raise taxes. However if you eliminate the fuel cost portion by combining an EV and solar, even if taxes doubled, tripled, quadrupled, it wouldn't matter, the cost of the fuel of a conventional vehicle of any type will still be more than an EV per mile and TCO. This is when all the averages are taken into account, average miles per day, average miles per year, average time a car is kept, average mpg, average cost of gas, average cost of maintenance, EV still comes out ahead. Washington state just started charging EV owners $100 a year, that is fine I am happy to pay, as the typical woman--sheeple driving a Camry pays that in fuel in 2 fill-ups, and the typical man-sheeple in a F150 pays more than that in 1 fill-up.
I am fine paying the extra tax/fee but if they go with a per-mile fee, it needs to be fee-rate * weight = fee. 15K miles a year in an EV is a whopping $315 worth of electricity, same distance in a 26MPG car would be $2,221. That is 576 gallons of gas @ $3.85/gallon. Of that $0.24 is federal and here in Wa $0.36 is state for a total $0.60/gallon or a total of $346 in taxes a year. They would have to raise the effective taxes/fees on an EV almost 650% before it would just equal the total fuel +taxes costs of the average mileage vehicle. Would this encourage people to drive more/less? I don't think it matters much either way, people will drive if they need to drive, how much money comes out of their pocket will ultimately make them decide if they should get a more fuel efficient vehicle, or take that ultimate step and choose a vehicle that doesn't use any gasoline/diesel.
Questioning how much taxes/fees will increase is not a good enough excuse to not adopt the technology. Your costs are still less on a daily basis than any other internal combustion vehicle on the road today and the foreseeable future.
