I have just been to price the plumbing for a group of barns (4) to be converted. I said to the developer he should consider having solar installed, "I don't like the look of it".
He even dismissed flaty's

Similar thing,I suggested to a developer that he add solar hot water:'naaa never pay for itself in a million years' but of course,from his point of view it wouldnt.Buy building,divide into as many units as you can get away with,build as cheap as possible,sell,reap profit,it never would pay HIM back!