5 vs 10 Solar Panels with Battery from Octopus – Advice Needed for Future EV & Heat Pump

NedS

Sam3007 said:

Thank you. I am now more inclined to get the bifacial ones with the Tesla powerwall 3 but I still have a few questions please 

If the space on my roof is limited , Is it better to space 10 bifacial panels with gaps to boost rear-side gain, or just install 12 panels close together (6 on each side)?

Almost certainly going to be more beneficial to maximise the number of panels. I don't know exact figures, but I'm guessing that the vast majority of generation is going to come from the front of the panel and additional gains from the rear bifacial aspect will be relatively small. I'm sure there are some studies out there as to the relative benefits of roof mounted bifacial panels.