If you want to boost EV sales, figure out chargers. Subsidize the installation of those.
And figure out how to do them without an attached garage. Where the charging may need to be done outdoors in the rain, snow, and in particular, below freezing.
Even if people think EV could be useful, and price effective, they are not supportable.
At least with a Tesla connector (and I’ll assume the same for the J1772/CCS connector) there’s no issue with charging in inclement weather for the connection to the car.
If the charger is a Supercharger or a permanent wall mount level 2 charger there’s no issue on that side either as they are weatherproof.
The only real issue is if using a mobile connector. The latest version is weatherproof but the outlet it plugs into needs to be weather proofed and ideally the box part of the mobile connector shouldn’t be sitting
on the ground submerged in a puddle.
A lot of RV places already have 240V service through weatherproofed NEMA 14-50 (or other) receptacles.
EV owners who don’t have garages but do have driveways or can park alongside their property run a line to where they park and put one of these on a post.
As for supportability, if it’s the ability to support charging a large number of cars that’s not going to be a problem for quite a while.
Look at this plot from our wonderful Texas grid from last night.
From midnight to 8:00AM they roughly committed an average amount of power equal to 60.5 GW. Demand fell off to a rough average of 53GW.
That left approximately 60GWh ((60.5-53GW)*8H) of energy available for charging EVs overnight without the grid having to do anything different.
Most EVs average about 3-4 miles per kWh so that 60GWh could conservatively supply ~ 180million miles of range. Texans drive a lot so let’s assume the average Texan drives 50 miles/day and that’s enough power to recharge 3.6 million EVs.
There are about 81,000 EVs registered in TX this year so we could increase the number of EVs 44 times before we need to start adding additional power to the grid.
Truthfully the real issue with charging is incentivizing owners of multi unit homes (apartments, condos, etc) to provide charging locations in their parking lots and the manpower to install the large number of 240v receptacles / level 2 chargers.