The trick to making the EV greener is to use an intelligent charger to only use the very cheap green energy at certain times of the night when it’s blowing a gale.
You can also see how the balance between the electricity sources changes through time:
So wind currently only around 6GW, expect over 10GW when it’s windy.
As the years go by, wind power is due to increase & will hopefully keep up with the introduction of EVs.