Do It Yourself Solar Panels have become quite popular, especially if you or someone you know is handy. You can build them easily with a little patience and time. The savings is substantial, and from what I can tell the quality is as good as many prefabricated panels- if you’re using quality parts.
I’ve run across many DIY sites for solar panels, and I’m opting not to put in links- but rather have you do a search for ‘diy solar panels’ and see what looks good to you. You always want to do the research on any given company, or before buying a manual that promises to give you all the answers. There are so many options that you will be surprised.
You also want to do the research for your geographical area to determine how well solar panels will work for you.