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victorious asked

Grid setpoint not working

Hello,

While the grid setpoint is already set to 0W, the grid still charges the battery with 3kW.

About the detailed info of the set, there are 2X Multiplus-ii 48/5kVA configured in parallel, 6 times of home batteries (48V with 100Ah capacity), and a micro PV inverters (installed on the AC out). The Victron 1.0 rule was also taken into account before installing the set.


At the moment the PV inverter generates around 300W, and 4kW is dragged from the grid, and there are 3kW of power getting used to charge the battery. AC load was only around 200W.


While the grid set point is 0W, and the ESS mode is in 'optimized w/o battery life', the battery should be charged by only the PV power which is 300W.

Why is this happening and what am I missing to check?

Multiplus-IIbattery chargingESS
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ejrossouw avatar image ejrossouw commented ·

@Victorious I'd only hazard a guess without a full insight into the numerous system settings and actual system setup. What is your "min SOC unless the grid fails" set to? If the actual SOC is lower, the system will bring it up to that level by charging from the grid. Do you have scheduled charging set up?

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victorious avatar image victorious ejrossouw commented ·
min SOC was only 15%. The actual SOC by the time was around 40%, and it was still using grid power to charge the battery.
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ejrossouw avatar image ejrossouw victorious commented ·
If you can provide a basic diagram of the system showing energy meters etc. and also the various settings, only then can one explore further.
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