We had 5 KM solar panels installed one year ago at a cost of $10,000.  The salesman estimated that we would pay the system off in 4 years. Now we find that the 20cent payment on our solar feed in is only for the first 122 kWh per month, the rest is at 8 cents. Our bill has been cut by 1/4 or less and it will take us 10 years to break even.  We went with Mark Group and get our power through Diamond Energy.  All people are friendly and nice to talk to, but that doesn't cut our costs.  I tried to console myself with the thought that at least we were helping the world by making less pollution until my husband explained to me the amount of pollution produced in the making of the panels. Can't win. I wouldn't go solar unless I could afford batteries and generator.