Hello, We have installed two Multiplus II-48/3000 with cerbo GX and Smart Solar MPPT 70/150. It turns out that on ESS the Grid Feed-In is disabled but still the system is sending to grid. What adjustments need to do to lower the value even though the system does not have an energy meter installed?

Try switching to individual phase regulation. And then ac loads are on the output only.

Really need more detail. Is there a wiring diagram? How is it configured. Without this we would need a crystal ball to help.

Hello @nickdb I’m glad you replied. Here you are components and configuration: [image] [image] [image] [image] [image] [image] [image] [image] [image] [image] [image] [image] [image] Let me know if you need further info. Regards.

I would start by changing the grid setpoint to a positive value like 30 or 50 for example.

Yes you need a positive number as a grid set point. With the current -10, ESS is always trying to feed at least 10 watts back to the grid.

Sometimes it is the balance between units. Do you really have loads before your inverters (in ac system)? You have plit phase I do not have any experience with that type of set up, i do have on 2/3 phases etc. So some thoughts from there. Does it use ohase regulation? The vrm shot shows 78w is t…

It was positive before first 50W then 30, 20 and now that I was trying negative value.

If there is an imbalance between systems this can help you identify it: [image] Node red show parallel system stats Node-RED Copying the post from the archive: I wanted to share a flow I created that shows master and slave inverter stats, and any imbalances. …

The entire building is powered for inverters output. Both phases are not balanced: [image] Phase 2 is significantly more loaded than Phase 1. Is this an issue causing feed-in although is not enabled?

The system is grid connected but the meter (not bidirectional) is measuring these values fed -in as consumption and although solar and batteries are saving the electricity bill will be affected by this value.

Hi, this is the normal way ESS works even when “No Feed-in” to grid is selected, ESS keeps balancing phases. As a result, there is a grid consumption which is around a few hundred watt/hour. Globally, for my system, it was 4 to 5 KWH per day for 3 Multiplus 5KVA connected in 3 phases. To resolve…

Zero Feed-In doesn't work

DIY

nickdb (Nick) 20 July 2025 14:45 8

If there is an imbalance between systems this can help you identify it:

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Zero Feed-In doesn't work

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