Take a look at the last FAQ on the technical page. What happens to the electricity generated while the house demand it low. Now remember this is not net metering, to have that in the UK you must have two meters, (it just needs a change in the law but Tony Blair doesn't have time for this simple law change he's too busy trying to get us to like nuclear). Anyway, it seems that this electricity is called spillage and it will go to the utility you are with, isn't that nice for them, free electricity to sell to someone else - no wonder it's a utility that is backing Windsave. I hope it will be different for US buyers of this product. Do you know your energy peaks and troughs in house usage. As I have already said the maths of this thing are hard to work out.
The bloke behind Windsave is a smart cookie who has already made a million with another idea, so read the small print, don't let your green energy heart rule your head.[ Parent ]