If I'm not mistaken, Phillipma1957 has been solo mining bitcoin using solar energy for years and has long ago recouped the initial outlay for the equipment he uses.  Hopefully he'll drop by this thread and drop some knowledge.

I think this is a fantastic idea, but it's not one I would invest in without knowing a hell of a lot more about the particulars.  Soliciting investors by creating a thread on a discussion board isn't the best way to raise capital, you know.  And to some of us who've seen the scammiest scams around, it even raises some red flags.