I'm looking into an off grid power supply for a shed.
The battery setup I'm looking at can take a max input of 120W, 10A etc
Given a solar panel is not 100% efficient I'm trying to figure out if I should run a 200W panel. I mean is a 200W panel realistically ever going to reach 120W?
Does anyone have any experience in NZ or preferably Wellington with DIY solar?
Failing that is there a way to regulate the input I to a device? The controllers I've seen seem to only limit volts