As with most things in life, the more you know, the better off you'll be, the better choices you'll make and the longer those choices will affect your life. The renewable energy field is changing constantly but is still built around basic fundamentals. Energy output and energy consumption are the building blocks for most all solar system design. The above links will give you an education into what fundamentals are needed to give you the best results pertaining to your renewable energy needs. Most of the systems described above can be implimented immediately for immediate results.