Windmills for your house !!
Small sized windmills to generate electricity is one of the options for the ones who are living in the countryside. (and I hope they will become more common..)
Normally the mills were charging a set of batteries that were connected to your house network but the british company Windsave created a new solution which is directly plugged to the general power grid without needing to be connected to batteries.
They are proposing to help reduce the electricity bills and also promote environmentally friendly renewable energy sources.