Since you have been experimenting for some time, you will be aware of the transient nature of wind/solar, and will probably have incorporated a storage battery(s) - (deep-draw Golf-Buggy type I hope- and do some searching on the net to see how to make these have a long life) - in your design. Why not put a 12vdc-120/240vac inverter at your 12V output- then all 'your' power can use standard ac parts and you can wire everything to US Codes, nice and safe.
(Kept ABSOLUTELY TOTALLY separate to your POCO supply of course!!) I have a UK catalog here now-
330W =US$9O 1000W = US$350- & a LOT cheaper in the US- you lucky buggers! Inverters do burn some power when unloaded, so you do need a 12vdc switch(s) for isolation- and I know just the place- Auto-breakers yard- a key/ignition switch & relay for a car starter motor- one of those mothers will switch 200A! Sounds a good project.
Alan.
