I don't think you'll see much increase beyond the current size of DC networks. DC from the solar panels to battery backup, but AC to everything else. Single roo

I don't think you'll see much increase beyond the current size of DC networks. DC from the solar panels to battery backup, but AC to everything else. Single room lighting on a single DC power supply, etc. There's just too much momentum behind AC circuits, and with modern electronics you can do AC->DC and vice versa quite efficiently. Additionally, AC has some nice benefits, like having safer/simpler plugs and switches due to minimized arcing.