There is more interest in self-sufficiency during this 21st century than ever before. That blatantly tells you that people are feeling the effects of the environment around them. We're not talking a……続きを見る
This book is written for those COMTEMPLATING getting a solar panel system if they don't know enough about it yet. A good, basic understanding of what you need to know "before" diving into ……続きを見る
