Keep your solar panels out of the shade. It might seem obvious, but your solar panels do need sun. Make sure that you are not installing them in the shade. Trim back the branches on surrounding trees if you need to. Failing to do so could cost you more than half your energy output.
This is Part One of an example of an Off Grid PV System using the Ready2Go™ used to completely power a house. Backup for this home is a generator.