I would say that Geoff does not fully describe the current situation. He would find that recently the cost of installing 16 solar panels is nearer 10K than 16K. The reason that people install solar panels is that the interest presently to be gained on them is more than on other accounts in the savings category,being officially estimated at about 16%. This is why the Government has said this can no longer be afforded and has altered the payment figures, causing many jobs in that industry to be lost. He talks about electricity bills,but ignores the amount paid to the owner for the electricity generated.An estate agent once told me that,far from detracting from a property,solar panels would probably add some value in view of the income they generate,thus returning some of the capital initially expended if the property was sold before this had happened as a result of the generated payments.