We signed up for Sungevity's residential leasing. I don't have the specs on our system right in front of me but they are installing next week. I'm very excited. My understanding is that they are making their money on rebates, tax credits and the like. It is costing me net $1500, pre-payment on the lease. I don't have to pay another penny for 20 years. The terms (which I read very carefully and had a lawyer look over) are very clear, at the end of 20 years they will remove at their cost if I want it gone. I like that because 20 years from now technology will be vastly different.
I also get $500 for every referral I make. Which I won't make any until I see my first electric bill post installation.
So far the experience has been outstanding. We've had to do nothing. They are installing Canadian Solar ET185s panels.