Wrenches, I have been doing some experimenting --testing compatibility between brands of grid tie inverters and sign wave battery type inverters. I am hoping some of you also have some experience here and we can compare results. My interest is fueled by my belief that AC coupling is the ideal way to increase system capacity for battery based off grid systems. The primary benefit is higher system efficiency for AC loads used during the day. I realize that power management becomes important but my interest right now is just to find out who talks to who. My ultimate "power management" tool will be an electric vehicle. Charging it will undoubtedly suck up available juice. So far: SMA synchronizes to Xantrex SW (have not tested the XW yet) and Outback and of course the SMA Sunny Island Xantrex GT also syncs to the SW I started this project with Enphase as my first choice since their system is so scaleable. I have been unable to make Enphase sync. Marv at Enphase has been very helpful but to date no results. I have, at Marv's suggestion ,used capacitors to clean the somewhat hashy SW output without results. Marv tells me he is testing Enphase and Outback. Does anyone have experience syncing Enphase to other offgrid inverters? Any experiences with Fronius and others.? Though the SW output is not the cleanest, the results with SB and GT are very stable. They hookup early AM and its steady green light all day long. Though I use microwave, start induction motors etc, and my scope clearly shows lots of spikes during these events, the GT and SB hang in. What are the experiences from others regarding mix and match?. Interoperability among brands seems to be a very desirable goal to this wrench. Don Loweburg Offline Solar, Inc **************A Good Credit Score is 700 or Above. See yours in just 2 easy steps! (http://pr.atwola.com/promoclk/100126575x1219858252x1201366219/aol?redir=http:%2F%2Fwww.freecreditreport.com%2Fpm%2Fdefault.aspx%3Fsc%3D668072%26hmpgID %3D62%26bcd%3DMarchfooterNO62)
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