With all the load shedding I decided to decommission my solis grid tie inverter and connect my solar panels to my Victron Multiplus 2 via a 150/45 Victron MPPT to help prolong my battery life.
Today I installed a single phase meter and connected it to the Cerbo GX, it seems to be working well as I can now view the entire house’s consumption (including loads connected before the Multiplus such as geysers)

I then wired up the MPPT and connected it to the Cerbo via a VE direct cable.

The issue I need help with is the following: when there is grid power available the MPPT doesn’t generate any power, but during load shedding it pushes out power and keeps the battery charged.
I would like the MPPT to push power back to the loads connected before the inverter and use the energy meter to prevent back feeding into the grid and tripping my council meter.

After checking out the wiring schematics online this is the setup I have, the current sensor has been replaced with a single phase meter in my installation.

The other thing I noticed was that when loads connected before the Multiplus (geyser) are pulling power, the single phase meter shows the consumption but the AC loads shows the same value even though this load is connected before the Multiplus (attached screenshot)

Any guidance would be greatly appreciated

hi there,

i had the same issue when i installed my solar panels,  but it was quickly resolved in the Victron MP2 settings. My installer/ programmer sorted it out.

Speak to your programmer to fix the settings.

Managed to get it all sorted out, thank you 🙏🏻

On 2023/05/15 at 7:20 AM, Noobie said:

Managed to get it all sorted out, thank you 🙏🏻

How did you sort it? I have the same setup, MP2 with ET112 meter and am about to add panels with a 150/45 MPPT so in case I run into the same issue. Thnx.

I had to update the firmware on the MP2 to set up ESS mode.

The ET112 meters all essential and non essential loads in the house (its connected right after the mains breaker)

The non essential loads (geyser, stove etc.) are connected before the inverter input and the essential loads (lights, Wi-Fi) are connected to the inverter output.

During daylight hours, when there is power coming from council, the solar panels supply power to the essential loads as well as the non essential loads connected before the inverter.

The ET112 ensures that the solar panels do not push power back to council and trip their smart meter.

I have set my MP2 to keep batteries charged at 100% as I only have a 4kWh bank and cant afford to cycle them during daylight hours and then be without battery capacity during load shedding (attached screenshot of the setting on the VRM connect app)

Aah OK, I thought there was a special trick. I have already enabled ESS and have it set to keep batteries charged while waiting for my panels. Will play with it some more when panels are installed. Thanks!