Hello, I have an ESS system based on Cerbo GX, Multiplus 2 48/5000/70 230Vac and additional PV invertor Fronius Primo 5.0.1 (conencted to the AC OUT of the Multiplus). The batteries are 2x3.5KWh Pylontech. The excess energy is fed back to the grid. The ESS installation is located in a village, where…

Multiplus cant increase your grid voltage… grid voltage gets higher if to many PV systems on grid produce power to the grid

Hello Marc, My PV panels are conencted to the MUltiplus II via MPPTs and the PV invertor are generating up to 9kW that should be fed up to the grid (to one of the phases of the grid - my ESS is single phase). How this power can be transfered to the grid? The house is in a village, apparently the g…

Unless you get paid for feeding in, consider not feeding in. In Aus lower daytime consumption with over PV production can be managed by grid operators who can disable the feedin of households remotely when grid voltages get too high.

Maybe this helps? [image] Victron Multiplus 2 5000 GX Grid Overvoltage Q&A and troubleshooting Actually, in veconfig there is an option called P(U) response in the European grid code settings. I’ve set this setting to drop the inverter power at a specified voltage from 1…

Maybe this victron nodered yt can help you https://www.youtube.com/watch?v=NMYsAyLvUk0 after 9 minutes he is talking about grid setpoint. Maybe if the average voltage is > 245v start lowering the infeed from pv power. [How a campsite used Node-RED to heat water and control ventilation] …

Hi there, I have the same issue over here (new caledonia) my installer confirmed that the multiplus would disconnect from the grid as the tension was getting above 250v , I resell my surplus so am a bit pissed about all that loss, (it happens at midday on sunny hours when no one is at home so the gr…

Multiplus II disconnects often from grid due to overvoltages

Q&A and troubleshooting

JeroenSt 1 January 2025 16:28 5

Maybe this helps?

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Multiplus II disconnects often from grid due to overvoltages

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