underdog5004
Solar Enthusiast
Hello
I have a dual xw plus system in my solar shed on the back porch . My house is connected to the grid but I have a solar shed out back that is off grid. I plan to run AC out from the shed to a transfer switch that will feed a sub panel on my house. My intention is to run my home from my solar shed as much as possible.
However I only have 600 amp hours of batteries and 6 KW of solar panels , so there will be times when I need to go back to the grid.
As an intermediate step between on and off grid, I would like to implement charging of the batteries from the grid power. I know I can run a 240 volt line from my main panel into my solar shed, but I'm concerned that if I put the grid wires into the grid port I open myself up to accidentally exporting even tiny amounts of power back to the grid. I have no agreement with my local utility company, and this might land me in some hot water.
So my idea is to run 2x 120 volt legs from the grid into the Gen port of the conext inverter. Will this cause any problems? Will I need to run a neutral or can I just use the two legs and assume the charger will draw from them evenly? What am I missing? What am I not asking about?
To avoid all this complexity, I could purchase an eg4 chargverter but if I can use the existing 120 amp charger in the xw inverters, I'd prefer that.
As an addendum I want to clarify that I reference putting the wires directly into the Gen port of the inverter above, but electrically I would be connecting the grid to a bus bar that feeds a couple AC Breakers which then feeds into the Gen ports of the two inverters.
I have a dual xw plus system in my solar shed on the back porch . My house is connected to the grid but I have a solar shed out back that is off grid. I plan to run AC out from the shed to a transfer switch that will feed a sub panel on my house. My intention is to run my home from my solar shed as much as possible.
However I only have 600 amp hours of batteries and 6 KW of solar panels , so there will be times when I need to go back to the grid.
As an intermediate step between on and off grid, I would like to implement charging of the batteries from the grid power. I know I can run a 240 volt line from my main panel into my solar shed, but I'm concerned that if I put the grid wires into the grid port I open myself up to accidentally exporting even tiny amounts of power back to the grid. I have no agreement with my local utility company, and this might land me in some hot water.
So my idea is to run 2x 120 volt legs from the grid into the Gen port of the conext inverter. Will this cause any problems? Will I need to run a neutral or can I just use the two legs and assume the charger will draw from them evenly? What am I missing? What am I not asking about?
To avoid all this complexity, I could purchase an eg4 chargverter but if I can use the existing 120 amp charger in the xw inverters, I'd prefer that.
As an addendum I want to clarify that I reference putting the wires directly into the Gen port of the inverter above, but electrically I would be connecting the grid to a bus bar that feeds a couple AC Breakers which then feeds into the Gen ports of the two inverters.