You can swap out centralized energy sources (relatively speaking) overnight as greener sources become cheaper/more available compared to retooling whole industries away from plastic

It’s the same thing with electric cars, yea it might plug in now to a dirty energy source, but that energy source could be a green energy source tomorrow without you ever knowing and importantly not having to buy a new car or change any other infrastructure to take advantage of it

A power line is a power line, it doesn’t care if the electricity going through it was derived from a dirty power plant or solar or nuclear