Space X has purchased $225 million in Solar City bonds. Elon Musk has a 21% stake in Solar City (he is also buying $65 million in Solar City bonds, half of their most recent offering).
Funny, but inevitable. Musk was asked specifically if Tesla would takeover SpaceX or vice versa in a tesla conference call and he said no, but it is really inevitable. Without some creative accounting through shifting investor cash and grants from one company to another Solar City has no future, and that then goes for Tesla as well.
i thought solar cells are dirt cheap, because China can produce them at very low cost?