Seriously? Space solar is all multijunction, a totally different, far more expensive product than single-junction consumer cells. (Multiple junction cells have

Seriously? Space solar is all multijunction, a totally different, far more expensive product than single-junction consumer cells. (Multiple junction cells have a higher conversion efficiency than single junction cells, so they're smaller and lighter, but they cost 10-100x more, since they're a low volume specialty product) Solar city, if it ever actually made solar panels, would never make multi-junction ones.