agreed. my opinion besides that article is that there shall be no market. this should be DIY/T(together) and easy to build yourself. cause the market sucks. also i'm really desperate of seeing fellow human beings believing in such technologies to save us for a brand new green capitalist system. it won't work, we have to listen to the indigenous, they don't need no batteries, we really consume to much we destroy the world of them, of animals, of plants, of everything. no more markets. DIY/T forever!