off grid simple set up

clueless

I wish to set up a solar powered electric hot water heating system.  I would like it to be expandable, simple, safe.  It will be a ground mount system.   The goal is to use the power directly as it is produced.  It would be used for hot water in the winter and AC in the summer.  I have a rudimental understanding of solar set up.  I would like help with specifics panel sizes, inverter, battery setup, grounding, wire size, etc.  Any help will be greatly appreciated.  
Thanks, 
Clueless