question

torsdan avatar image
torsdan asked

Multiplus, EVCS, No solar.

Just making sure it'll do what I hope it will before committing.

Want to get a MultiPlus-II 48/5000, batteries & a EVCS. (may get more MP2 later)
Have the MultiPlus charge the batteries during off peak tariff, supply house/load during other (until battery low).
EVCS charge car at up to 32A during off peak, and from MultiPlus during other periods at <=16A.

I can't have solar at my house at this time.
I don't mind if system pulls from grid during peak times but I just want to limit usage during those periods as much as possible.

Tariff: Ergon 12c.

Multiplus-IIevcsev charger
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1 Answer
Lucian Popescu (Victron Energy Staff) avatar image
Lucian Popescu (Victron Energy Staff) answered ·
DESS can take care of the system to get the best energy price. But the EVCS is not yet controlled by DESS
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torsdan avatar image torsdan commented ·
Can the evcs have a schedule so it's limited during peaks?

My tariff is time of use, fixed times.


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Lucian Popescu (Victron Energy Staff) avatar image Lucian Popescu (Victron Energy Staff) ♦♦ torsdan commented ·
Yes, it has scheduled charging mode
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Lucian Popescu (Victron Energy Staff) avatar image Lucian Popescu (Victron Energy Staff) ♦♦ Lucian Popescu (Victron Energy Staff) ♦♦ commented ·

It looks like this 1720503736895.png

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1720503736895.png (149.7 KiB)
torsdan avatar image torsdan Lucian Popescu (Victron Energy Staff) ♦♦ commented ·
Thank you, is it able to reduce and increase output depending on the inverter load?
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Lucian Popescu (Victron Energy Staff) avatar image Lucian Popescu (Victron Energy Staff) ♦♦ torsdan commented ·

Yes, we have overload protection, I presume that's what you need, correct?

1720524669227.png

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1720524669227.png (260.2 KiB)
torsdan avatar image torsdan Lucian Popescu (Victron Energy Staff) ♦♦ commented ·
Sorry, I mean: (numbers dumbed down).

If the inverter can handle 4kw, house is using 1kw, car is using 3kw.
Then the house starts using 2kw, will the EVCS let the car know to reduce it's output to 2kw.
Then when the house is back to 1kw, EVCS resumes 3kw?

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Lucian Popescu (Victron Energy Staff) avatar image Lucian Popescu (Victron Energy Staff) ♦♦ torsdan commented ·

Yes. That's how it is working. But, there are some delays. It's not immediately going back to the previous value.

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torsdan avatar image torsdan Lucian Popescu (Victron Energy Staff) ♦♦ commented ·
Thank you for all your timely answers @Lucian Popescu (Victron Energy Staff)
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Related Resources

MultiPlus-II Product page 

MultiPlus-II Manual

Multiplus-II GX Online Manual

MultiPlus-II 230V Datasheet 

VE.Bus Error codes

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