Solarcoin will never work. The reason being is that there is NO incentive for a homeowner to use their system. A homeowner with 5KW solar power system would receive a little over 6 solar coins A YEAR. That would be about $1.80 in today's prices.  If solar coin ever gets to be $10, and it never will, because the total marketcap would then be $1 TRILLION, the homeowner would get $60 a year. That's not even worth the paperwork.