let's discuss the design of a wind driven electric generator capable of supplying power for a small farm. first we must have a ready source of wind. second we need a suitable propeller. third we need a suitable generator or alternator. fourth we will need some sort of storage system to store power when there is wind but power isn't needed. there will be other elements to this scheme such as a transmission and a way to disconnect the generator from the batteries when there is no wind to prevent drainage. let's see if we can come up with a cost effective system.