What sort of solar? Heating water, electrical generation, what?
Please, be more specific.
I work with passive solar and some solar cooker homebuilt, and water heating. Some of that you can do yourself fairly cheaply with very little. If you are looking for electrical panels, that's different.
Won't you be my neighbor? - Fred Rogers. tiny ad:
Ernie and Erica Wisner's Rocket Mass Heater Everything Combo