I dunno, JR. You're going to need 'big business' to make the panels and 3 D printers and manufacture the graphene and... You'll need businesses to employ folks so they can earn money to buy them....
I don't know the answers to your questions. Hopefully readers can help.
Hah! That's a clever solution Dan. Never ran into that. But I was involved in a big effort to come up with solutions to animal-caused outages, particularly squirrels. Lots of idea but we never...
Oh Michael! Don't 'assume' anything ;-)
"He kept saying the same thing to me for 3 months...and my name isn't even Johnson!"
(I'm not eligible for contest but I couldn't resist!)