Question About EG4 18kpv Grid Connection

[Quattrohead]

Having issues finding a definite answer. Is it possible to go straight from the meter to the 18kpv and then to the main panel?

Almost, there will be a whole house disconnect or grid breaker between the meter and 18k.

 

[Timothyboylan78]

Almost, there will be a whole house disconnect or grid breaker between the meter and 18k.

Awesome. I assumed I should have the PV disconnect, and rsd installed also. Is there any chance for export in this scenario? Do I even need to alert my power company?

 

[EG4_Eric]

With the right settings there shouldn't be any export.

 

[DIYrich]

I assumed I should have the PV disconnect, and rsd installed also.

yes.

Is there any chance for export in this scenario?

With an 18kpv, there will likely be some export regardless of your settings. When a large load suddenly cuts off, the power has to go somewhere.
With 6000xp, not likely. The 6000xp is either on-grid (powering load and charging battery), or off-grid supplying load. The inverter does not seem to be ever connected to the grid, except to charge batteries (which is taking power, not pushing power).

Do I even need to alert my power company?

18kpv: Probably. 6000xp: I can make the argument that it is no different than a battery charger to the grid.

 

[Quattrohead]

With an 18kpv, there will likely be some export regardless of your settings.

Not correct.
In off-grid mode, it disconnects from the grid via relays but does still monitor the grid so that it stays synced.
If it needs the grid due to overload, it will close the relays and go into grid assist/bypass mode.

 

[zanydroid]

Do I even need to alert my power company?

You’re operating in parallel even with zero export mode. This generally requires an interconnection agreement (interconnection does not imply export).

And with zero export there is going to be some possibility of export.

 

[Jpaction]

I have a question about the 200AMP pass through. In the 18k PV diagram it shows 60 AMP breakers. How does the 200AMP pass through work with a 60 AMP breaker?

 

[Quattrohead]

Which diagram? There are various different scenarios this unit can be set up in, so 60 amp breakers do not apply to all of them.

 

[EG4_Jared]

I have a question about the 200AMP pass through. In the 18k PV diagram it shows 60 AMP breakers. How does the 200AMP pass through work with a 60 AMP breaker?

I believe the two diagrams you are referring to are the Partial Home Backup with Backfed Breaker and the Partial Home Backup with Supply Side Tap. With the backfed breaker diagram, you cannot take advantage of the 200A pass through since you are limited with the 70A breaker in the main panel. As for the partial home backup diagram, the critical loads subpanel can be 60-200A. However, the total loads form the main breaker panel, and the critical loads subpanel must not exceed 160A continuous.