Can a grid tie inverter work along side a battery based one?
Currently I have a Xantrex DR3624 battery powered inverter installed in my house with 8 lead acid, 6-volt batteries on a 24-volt configuration to supply electricity during blackouts. Would it be safe to install a grid tie inverter in one of the outlets in the house? I know that under normal circumstances, the grid tie inverter I'm thinking of buying would send power coming from the solar panels into the circuit panel and off to the grid, it would turn off during a blackout as a safety feature when it doesn't detect any current. But with another inverter online, the transfer switch on the Xantrex would place the batteries online, what would happen with the extra power coming from the outlet with the grid tie inverter? Is this safe?
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