Solar Power 2 - Cost

We had four choices, pay nothing, pay a little, pay a bunch or buy outright.  We went with the third option - Pre Pay Lease.  Our initial payment brings our electric bill for the pool house down to $0.  At the current rate for electricity as well as the expected increase in electricity, we should break even in around 12 years.  This means we break a profit in years 13-20 and should save roughly $17,000 in electricity costs over that time.  Plus, Solar City takes care of ALL maintenance and insurance.  Panels break?  Not our problem.  Invertor stops working?  Not our problem.  Cloudy the entire year?  Doesn't matter, we are guaranteed the production they estimated whether it produces or not!