Of course it's clear, crystal clear. A power station isn't DIY plug in solar, that's beyond silly
Yes agreed, but can I have plug in solar, when I already have a battery? I know we are allowed plug in batteries, the V2G EV plug and socket is legal, so we have to say BS 1363 plug in solar, as there is nothing stopping someone driving an EV motor caravan up to there V2G EV socket and plugging in solar panels and battery it is only with the BS 1363 socket that batteries are not allowed.
Also, we can have BS 1363 plug in batteries, as long as they don't use the plug to reverse flow the energy. Power packs to with solar can be plugged in have been around and legal for a long time, just not allowed to back feed.
They even grid-sync so can seamlessly swap from mains to battery during a power cut, often called an UPS, although some are not quite so fast to change over, so are called an EPS. It is only the back feeding which is not allowed with anything but solar with a BS 1363 socket.
I know it is confusing, which is the main problem, we know we can only use solar kits to back feed into BS 1363 sockets, but just leave out BS 1363, and it all goes up the creak.
So as far as I am aware, you can have a V2G EV socket to which you can connect a battery able to back feed into the grid as the same time as a BS 1363 socket with solar panels which back feed into the grid.
Oh what a tangled web we weave.