I've been doing solar for a while now, so I should know this, but I find that I am stumped over what should be a trivial question.
Under normal operation, I want the solar panels to grid tie into the house wiring, send excess to the batteries, but be incapable of exporting. This way, solar is used for all loads including the dryer and water heater. When the grid is down, I want the solar and battery system to power a critical load subpanel, which would include the A/C system (17A run/ 40A start @ 230V [3910W/9200W surge]).
I have been looking at some of the mpp inverters - like the LVX6048 and the LV6548. These are all in one inverters that have MPPT and battery charging built in. I'm not sure if they can do zero export grid tie or not.
Any suggestions to get me back on track?
Under normal operation, I want the solar panels to grid tie into the house wiring, send excess to the batteries, but be incapable of exporting. This way, solar is used for all loads including the dryer and water heater. When the grid is down, I want the solar and battery system to power a critical load subpanel, which would include the A/C system (17A run/ 40A start @ 230V [3910W/9200W surge]).
I have been looking at some of the mpp inverters - like the LVX6048 and the LV6548. These are all in one inverters that have MPPT and battery charging built in. I'm not sure if they can do zero export grid tie or not.
Any suggestions to get me back on track?