On a serious note a compay is suggesting a wind farm on the mountain near us and is saying those in the area can get cheaper electricity if it is given the go ahead. In a way a kind of bribe that wll last x length of time, where as if you have solar as you do, your your own boss on how and what you use it on.
I know about charge points/solar batteries/electrcs especially in commercial enviroment, but, little in the way of suppliers and tariffs.