Just for fun, here is a "solar calculator". You stick in some basic info, find your property on a map, and bingo, it tells you stuff.
It tells you the two key things - an estimated installation cost, and an estimated annual saving. It doesn't, mysteriously, tell you the therefore expected payback, so you have to divide one by the other yourself.
In my case, (I chose a 6KW install), it suggests:
Installation cost:£7,913
Annual saving:£626
So therefore payback of 12.6 years.
All a load of nonsense no doubt, but be interesting to see the figures for others around the country, if anyone wants to try?
www.pvfitcalculator.energysavingtrust.org.uk/
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Solar calculator for fun and profit new
Solar calculator for fun and profit new