http://www.solarcity.com/residential/solar-ppa.aspx
How is SolarPPA different than SolarLease?Our SolarPPA and SolarLease are both great options. They offer similar financial advantages to the homeowner. The primary difference is that with a lease you pay by the month, and with a PPA you pay per kWh. Another benefit of the SolarPPA is that you can purchase the system anytime after year five. Availability of SolarPPA and SolarLease vary by location based on what your local utility company prefers.
Please let us know how it goes. The idea of them replacing the roof just seems crazy. I must say that I'm now intrigued.
...anybody want to get me into a timeshare while I'm vulnerable?