Friends:
I am starting to get the impression that there is a diversion on the understanding of the definition of AC coupling within the industry. I think this definition needs to be clarified. Below is a diagram of what I understand is a DC coupled system (I hope these diagrams come through): A battery inverter that receives AC power into an AC input port is *not* AC coupled. Here is an AC-coupled system: What makes AC-Coupled systems unique are the problems presented by sending power *backwards* through a battery inverter. This is not how battery inverters were originally designed to operate. These systems require careful consideration to avoid battery overcharging. Do we have consensus on this definition? William Miller Miller Solar 17395 Oak Road, Atascadero, CA 93422 805-438-5600 www.millersolar.com CA Lic. 773985
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