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Message: <blockquote data-quote="arwooldridge" data-source="post: 561604" data-attributes="member: 35807"><p>If you are using CT's on one of the systems eg Solax,, there might be a workaround  by fooling one system into thinking there is no grid current ( import or export) up to a certain  threshold value which is higher than that of the other system's threshold. A simplistic solution might be two paralleled back to back diodes in series with the CT output. this would depend on the scaling of the CT's the Solax would then only take control once the Tesla battery lost control ( eg if too much Solar power or battery full) you could use 1N4001 diodes or maybe Shottky diodes if you needed a lower threshold. On the Solax the load resistor (burden resistor) for the CT is in the inverter unit so external diodes will block any voltage up to about 600mV for 1N4001 or 300mV for the schottky diodes. If that fails another possible solution would be to declare the CT's as different scaling eg if your CT's are 100 amp, declare them as 200Amp. this would of course affect any reports of import/ export power in your app. but the threshold solution would be preferrable as a first try.</p></blockquote><p></p>