Well its DH who is actually considering it, I think that since we live in South Wales the chances of them working are slim 
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He has been given a quote for £5800 for 3kw panels to cover most of the roof that is south south east facing. It is a three bed semi with a two be extension so a fair amount of roof. The sales boy spotty teenager man suggested that, what with the saving in energy bills and feed in tariff, these would pay for themselves in 7-10 years and after that make us a small amount of money every year (about £300 ish) they are warranted for 25 years. Obviously if we got 4kw panels the cost is more but the payoff is quicker.
So am I wrong? Have you got panels and do they actually make you any money?
in advance