virtual switch (vs): how to switch it depending on solar power delivery ?

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bootfahrer0815 asked Jul 23, '22

virtual switch (vs): how to switch it depending on solar power delivery ?

Hi, I use a Quattro and a MPPT SmartSolar Charger.

I configured the Quattro, so that the VS switch the AC-Input (Shorepower), depending on the AC-Output-Power and the SOC of the batteries. For example, the AC-Input will not be ignored, if the SOC is lower than 50%.

This make it possible, that the batteries are loaded regularly from the PV (solar power modules).

This is good at summer time, but in the winter, the PV energy is to low to load the batteries. With my configuration, the batteries would be unloaded permanently to the SOC of 50% and then be loaded to about 100% from the shorepower. This procedure would be repeated every day and wouldn´t be the best for the batteries.

My idea is to optimize the configuration of the VS, that the switch depends on how the PV delivers energy (for example more than 100W) to load the batteries, or if the PV isn´t able to load the batteries enough and the shorepower is needed to do this.

Is it possible in the ve.config to configure this?

Thanks for help!

Greetings!

Rainer

SOC VEConfigure 3 shorepower virtual switch

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Answer 1 · 2022-07-23T18:16:47Z

Mike Dorsett answered · Jul 23, 2022 at 06:16 PM

This would not be possible to do with the virtual switch as it would not have the data it needs (future solar power) to decide whether to allow the batteries to discharge so they can be recharged from solar.

The only way to resolve this, is to reprogram your virtual switch twice a year to change the minimum battery SOC according to the expected solar energy. i.e. 50% in summer and 70% in winter.

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