I have a 6.7 kWh Solar Array, with a 6kW Growatt Inverter and a 7kWh Growatt battery. The system works beautifully and is easily capable of meeting my needs in the summer. In the winter however, this will be an issue.
I'm trying to add another invert and battery to my system. I have read so much documentation and threads my eyes are bleeding and I cant come up with a solution. What I'd like to do is to install my DIY 16 kWh battery in an outbuilding along with another inverter. Normal grid tied operation i.e. it sees energy being imported it increases it's voltage, energy going out to the grid it decrease its voltage. I want to have the option to charge my battery off peak, no problem there. Where I come unstuck is how do I make the inverter use excess energy to charge the battery eg my solar PV system is driving 1.5kWh back to the grid, how can I harness that to charge the battery on inverter system 2? Does such an inverter exist?
Ive outlined LifeP04 eve 300Ah batteries, DALY BMS etc, any suggestions / comments appreciated
My other thoughts was to get a 10kW inverter with a battery charging unit to feed it and charge my batteries, the house to run off this inverter completely i.e. the house not connected to grid. Excess power when detected increase the charging current when it starts to import from the grid, reduce the charge current.
I assume the likes of Tesla Power Wall work in this manner.
Many thanks in anticipation - J
I'm trying to add another invert and battery to my system. I have read so much documentation and threads my eyes are bleeding and I cant come up with a solution. What I'd like to do is to install my DIY 16 kWh battery in an outbuilding along with another inverter. Normal grid tied operation i.e. it sees energy being imported it increases it's voltage, energy going out to the grid it decrease its voltage. I want to have the option to charge my battery off peak, no problem there. Where I come unstuck is how do I make the inverter use excess energy to charge the battery eg my solar PV system is driving 1.5kWh back to the grid, how can I harness that to charge the battery on inverter system 2? Does such an inverter exist?
Ive outlined LifeP04 eve 300Ah batteries, DALY BMS etc, any suggestions / comments appreciated
My other thoughts was to get a 10kW inverter with a battery charging unit to feed it and charge my batteries, the house to run off this inverter completely i.e. the house not connected to grid. Excess power when detected increase the charging current when it starts to import from the grid, reduce the charge current.
I assume the likes of Tesla Power Wall work in this manner.
Many thanks in anticipation - J
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