Adding a second inverter to a Grid Tie System

[johnb2713]

I have a system installed, 6.7kw of panels, SPH6000 inverter and a 7kWh battery.

I want to add more battery to my system and ideally more inverter power. I plan to assemble a 280aH 48v LifeP04 battery, DALY BMS feeding an inverter. I would like to install this second setup in my workshop which is connected to the house via it's own set of tails. I would like to charge the battery from off peak and from excess solar. I can achieve this I think with another SPH6000 inverter or whatever is recommended.

My question is:-
1) Will two grid tied inverters co-exist ok (i tend to think they should, no real difference to a neighbouring property having one on the same phase?
2) Any recommendations for the inverter 6 to 10kW
3) I dont intend to export anything to the grid.... I WANT IT ALL LOL

Any help / advice gratefully received.

J

 

[binky]

I have a system installed, 6.7kw of panels, SPH6000 inverter and a 7kWh battery.

I want to add more battery to my system and ideally more inverter power. I plan to assemble a 280aH 48v LifeP04 battery, DALY BMS feeding an inverter. I would like to install this second setup in my workshop which is connected to the house via it's own set of tails. I would like to charge the battery from off peak and from excess solar. I can achieve this I think with another SPH6000 inverter or whatever is recommended.

My question is:-
1) Will two grid tied inverters co-exist ok (i tend to think they should, no real difference to a neighbouring property having one on the same phase?
2) Any recommendations for the inverter 6 to 10kW
3) I dont intend to export anything to the grid.... I WANT IT ALL LOL

Any help / advice gratefully received.

J

Multiple inverters will coexist, never quite understood how, that's a little mystery. If you add a second system you will legally need to notify DNO, and almost certainly need export limitation to comply, which means a data cable connection to the garage.

Fave hybrid inverter is Solis with pylontech batteries. Getting hold of them is another matter

 

[johnb2713]

Multiple inverters will coexist, never quite understood how, that's a little mystery. If you add a second system you will legally need to notify DNO, and almost certainly need export limitation to comply, which means a data cable connection to the garage.

Fave hybrid inverter is Solis with pylontech batteries. Getting hold of them is another matter

Hi,

Many thanks for your reply, let the project commence!

My existing Growatt inverter I can turn off the export capability, one of the reasons why I wanted to go with the same inverter again. I have no intention of exporting from my battery storage, I'd rather use it all myself.

Any ideas where I may be able to get either a Growatt SPH6000 or the Solis one you mention?

Regards - J

 

[binky]

Hi,

Many thanks for your reply, let the project commence!

My existing Growatt inverter I can turn off the export capability, one of the reasons why I wanted to go with the same inverter again. I have no intention of exporting from my battery storage, I'd rather use it all myself.

Any ideas where I may be able to get either a Growatt SPH6000 or the Solis one you mention?

Regards - J

I always buy from Segen, not sure if they will sell to private customers. Trouble is demand is outstripping supply, so you'll have to shop around.

Locked to prevent hi-jacking (again)