It may well happen more quickly than that... especially with hybrids ensuring good range until batteries and solar become more efficient. I can't see any reason not to embrace it.
Although I have no idea where the power is going to come from with 40 million vehicles plugged in. Nuclear or coal initially I suppose, which is concerning. Would be great to hear from someone with the knowledge about potential supply and demand metrics in the future.
Is generating enough power going to be cleaner and more efficient than fossil fuel powered vehicles?

