battery transition? from what to that? grid-tied/always on electricity? something else?

not against it, I have been starting to build my own offgrid system (mobile, I will need to relocate eventually as I am too far north at the time being for solar/wind gen to work effectively), but the ability to generate electricity is far easier than storage of said electricity. when you scale it up and have a large and/or unlimited budget then options like pumped storage hydroelectricity, or gigawatt tier capacitors make a lot more sense than current-gen battery tech... but for the you and me/average guy on the street, current-gen battery tech is all we can really afford.