Earth4Energy provides a step by step guide to building your own solar electricity generation system.
It covers the various aspects like
- Determining the power consumption of your home appliances and sizing your solar system accordingly
- Insolation maps
- Basics of photovoltaic cells
- Differents components/ parts used
- Sizing / selection of wires, PV cells, batteries
- Wiring diagram / series / parallel connection
Fairly comprehensive, but some parts like the maps are not universally applicable.