In Pennsylvania there is no extra fee - plus there is a $1750 rebate for the purchases of EV's - which even applies to used EV's purchases if you live certain air-quality non-attainment counties - like my county.
I notice that these southern states that charge the extra fee do not have any such EV incentive program. Figures.
Considering the rarity of EV's in places like Arkansas or N. Carolina (except maybe Asheville I guess) then surely this extra fee is not really about offsetting the non-collection of the gasoline taxes. Sure, there may be a time when EV's become prevalent enough to require alternate funding but for now we are still in the incentivize early adoption phase. So, these extra fees are is almost certainly a political-cultural thing, if you know what I mean....
Maybe not for too much longer in PA:
https://www.penncapital-star.com/blog/electric-vehicle-drivers-in-pa-would-pay-250-year-fee-under-advancing-state-house-bill/
WV charges $200. The main problem with these fees are that they are fixed. By it's nature, the fuel tax for ICE is variable depending on how much you drive. If you're a granny that drives an ICE 2,000 miles per year, you pay very little in fuel tax. If you're the same granny with an EV, you pay what the average ICE driver pays for 13,000 miles or so. So, it's regressive. If it were mileage based, it could be fair. Low range EVs are especially punished since they don't typically rack up a lot of miles. But, states would need a new mechanism to capture odometer readings if they don't already do so (WV does not) and a group of people to administer it. So, extra cost and effort on that side. We might make it fair and it costs more with state personnel and overhead.
And, I do believe EV owners should pay their fair share in road taxes. I certainly wouldn't want to give the opposition a talking point about how "entitled EV owners are not paying their share while the downtrodden masses are paying for all the road maintenance!" The issue is with computing what is fair and how best to do it. If road taxes are used to maintain interstate rest areas (I believe they are), then I'd also like to see the state invest in basic EV services at those facilities. They can charge for the electricity, but make the service available and maintain it. An expensive parking meter and tickets could do the trick to avoid complicated payment systems.
If you drive an average number of miles in an average efficiency ICE in a year, then $200 is about right in WV. Ironically, long range EVs like Tesla owners are getting a great deal if they drive a lot of miles. Buddy of mine has done 40K on his Model 3 in less than 2 years, so he's way ahead. Here's the calculation that I ran for WV:
This
source says average American non-commercial drivers put 13,474 miles on their vehicle annually.
This
source says the average economy for new US cars is 24.7 mpg (if older vehicles were included, it would make the efficiency figure lower and therefore the amount of taxes higher).
This
source indicates that the WV gasoline tax rate is $0.357/gallon.
If you take those figure and run the numbers, you get 13,474 / 24.7 = 545.5 gallons of fuel each year for an average new gas powered ICE non-commercial vehicle.
545.5 gallons of fuel x $0.357/gallon WV state tax rate = $194.75 in state fuel taxes each year which is close to the $200 fee.
This does not include federal fuel taxes at $.184/gallon which would be another $100.37 for average annual miles and efficiency.