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even in developing countries BOS cost (balanca of system, everythig but the solar panel to build the whole thing) is the major portion of the total cost..
so you would not need to rebate the panels but teach people how to install the pannels on a reliable and clever way, find lokal sourcing for the supporting structure and wiring...

I just had the idea, not much research have gone into this tho :p

come on.. this is the time to excell.. to get from ideas to concepts to plans to reality to success... ;-)