Where can I find good unbiased information about the relative advantages and costs of different types?
Basic questions are:-
What technology to go with? What *actual* output can I expect for a given nominal wattage (in France but not very far South)? Are flexible (walkable on) panels any good? .... etc.
I will do the installation/wiring etc. myself, will probably buy the electronics separately from the panels, advice on this side of things (i.e. where to buy etc.) would also be welcome.
The boat is 12 metres long so has a reasonable amount of roof, though not in one big chunk. The batteries are three 12v 200Ah, two for 'leisure' and one for starter.