If fossil fuels were taxed heavily, it would likely be enough to replace existing fossil fuel power plants with solar. Unfortunately taxing fossil fuels enough at a state level to make that viable is nigh impossible.

That leaves us with the need to combine solar with degrowth from individuals on a mass scale for it to start eating away at existing fossil fuel power.

As it is now, It’s still better than if all the new generation had been fossil fuels, but it’s very much not enough.