question

kallenr avatar image

BYD premium LVS and Victron multiplus ESS questions

I don't understand a few things.
This is a test setup and only a switch is connected as a load.

1. I see that I supply back to the grid, but why does it say 0.0 kWh to grid?

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2. I have a BYD premium lvs 12.0, which is charged to 100% daily.
Every morning the battery is at 96% with a constant load of 5W + the self-consumption of the Victron Multiplus.
Every day 2.0 kWh is charged to get the battery back to 100%.
How is it possible that the battery loses 2 kWh per day with a constant 5 watt load ?

ESSBYD
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2 Answers
Alexandra avatar image
Alexandra answered ·

@KallenR

I cannot answer the one about feedback to grid, but with the battery you will see with ess that is will go down to its float level but during the day when your solar is expected to produce the batteries will rise to the bulk value so technically 'charging and discharging'. That plus the load of the system and the switch it can getting to 2kwh.

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kallenr avatar image
kallenr answered ·

Everything is disconnected as a test at the moment.
only the Victron multiplus and SMA sunny boy inverter are connected.
They are both connected to phase 1 of the EM24 Ethernet Energy Meter.

When I look in the spec sheet I see that the Victron consumes 11W.
That is 0.264 kW in 24 hours.

when I move my mouse over the AC loads timeline, I see a constant consumption which fluctuates between 9 and 14 watts.

So the AC load measurement is correct.


However, I see, for example, yesterday a consumption of 6 kW.

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I think we should start with the fact that the consumption value is wrong.
How is it possible that this is in line with the production of that day.


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