Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Outstanding reference

This book got me thru the design and installation of a complete off-grid system for my lake cottage. The process of site evaluation, system component selection, wiring, etc. is complex, but with a lot of study and this book, I ended up very happy with the results. Everything you need to know is here. I recommend it for anyone who is starting with little PV knowledge and wants to end up with a whole house system.