What size wire should be used for everything? I have 10 gauge on most of system and some four gauge on the battery end.
Calculations are needed for your wire runs from the turbine to the rectifier. From the rectifier to the bat bank a #6 (60 amp) should do the trick.
There are several factors affecting wire gauge size; the following article will assist with this: http://www.windynation.com/articles/electricity-storage/wind-turbine-wire-size-guide
