I predict they will never be able to do it. None of these people seem to understand that there will be more demand on electric power and how will it be met? Power companies have to plan years in advance on what demand will be.
So you can’t build enough Nuclear power plants and there will not be enough through wind and solar.
What I don’t hear anything about is utilizing Natural Gas for Compressed Natural Gas engines, they are proven and have been around awhile. We have enough natural gas reserves for almost another 1000 years.
Also they have yet to break the barrier on battery technology for driving distance and ultra fast recharging stations.
That’s easy, just carry a can of electricity in your electric car!