Interested to know your thought on this...
http://www.pluginsolar.co.uk/They provide a "Plug-In Solar Connection Unit" which you have to wire to an FSU. Your panels then "plug in" to this Solar Connection Unit.
If the FSU is connected to an existing circuit (eg it's not a new circuit) and the panels are effectively a "pre wired set", does this mean it's not notifiable under the Building Regs?
I know you would have to notify the DNO.