ok i have a 600w 48v pma ac 3 phase unit mounted 40' up. it came with a hybrid controller but currently do not have that hooked up. atm i have it running through a bridge rectifier i bought from windy nation, then going to a 500w wind gti. i bought from hear http://www.chinesegrid.com/Wind-Grid-Tie-Inverter/ my problem is with a good 15-20mph wind i am only getting around 20 to 40 watts of ac power. i tried hooking it up to the controller and running the gti through the batteries output, but saw no increase in wattage. it sounds like the gti is slowing down the turbine not keeping it at an efficant speed for the wind. keeping the turbine below 14volt. any suggestions?