Greenzu Solar PPA (Power Purchase Agreement)

I've heard of a company out there that will pay to install and maintain solar panels on your commercial building, then you buy back the electricity.  So no upfront cost and a price per Kw/H 10-20% less then your current provider.

Too good to be true?  You tell us.  Has anyone out there done this?  Please share!!

http://greenzu.com/