Grid tie and battery together

[Ampster]

You would need to set up the system like a hybrid inverter that would connect to the grid when it was up or charge the battery when the grid was down. I don't know if you can do that with a standard grid tie inverter and an MPPT CC.

Yes, one of the issues would be that a grid tie inverter typically has a string voltage of 300 to 400 volts. I don't think there are many MPPT CCs that operate above 48 v nominal.

Recently I saw a post here where someone wanted to use his grid tie string of solar panels to power an off grid inverter when the grid was down. The only solutions offered were switches or manually reconfiguring the panels for each time he wanted to use the other inverter.

[SunEagle]

Is it possible to wire a grid tie inverter and an MPPT controlled battery system together? Would the batteries get charged if the inverter was taking all the power? What would get priority, the grid or batteries needing a charge?

You would need to set up the system like a hybrid inverter that would connect to the grid when it was up or charge the battery when the grid was down. I don't know if you can do that with a standard grid tie inverter and an MPPT CC.

[Tired sparky]

Is it possible to wire a grid tie inverter and an MPPT controlled battery system together? Would the batteries get charged if the inverter was taking all the power? What would get priority, the grid or batteries needing a charge?