[jonatron]

I don't see the point in panels without a battery, so I'm looking at a DIY system. RCBO for new circuit = £20, 5.12kWh battery = £700, ~3kW hybrid inverter from eBay ~=£400, Panels ~= £100 each. I'm not the including cost of a registered electrician for a new circuit in my case.

[danmaz74]

The plug in "balcony panels" are usually limited to 800W here in Europe, so having them without a battery can make sense because you're probably going to use that power on the spot most of the time.