Andy, I am trying to learn this stuff too.. I am thinking Leamy needs to take the time and do a detailed thread of installation of pics and an part list on how to install this grid failsafe. I also figured out in good winds to bypass the diode and let the turbine see the batteries and ran only ONE 600 and put out 500 ish watts from it all day and never drained the battery bank down. It trickel charged the bank while maxing out the gt at times..2 gts would start to drain the batteries in between gusts to much..We had 20-30 mph winds with 40 gusts and the little 500s furled a bit yesterday... this worked well to get it in the 40v range.. I had a few times of runaway volts that showed 70v while I was down there and was expecting to hear that cap pop but never did..Think because the batteries were there taking all the true charge and not filling the caps at the time???