question

michelp avatar image
michelp asked

Multiplus-II GX in ESS

I need to run multiplus-II Gx in ESS system like the

herunder figure. I need also to have no enegy flux to the grid side (stupid regulatory requirements in FRANCE).

To meet this requirements i expect to adapt in "real" time the sink/source energy flux of the multiplus-ii Gx inverter charger is there a way to do that ?


Michel

Multiplus-IIESS
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1 Answer
Daniël Boekel (Victron Energy Staff) avatar image
Daniël Boekel (Victron Energy Staff) answered ·

Hi @michelP

Do you mean 'zero feed-in'?

This is possible with Fronius inverters (and some SMA inverters?)

https://www.victronenergy.com/live/ac_coupling:fronius#zero_feed-in

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michelp avatar image michelp commented ·

Hi Daniël Boekel (Victron Energy Staff)

my aims is to cancel at most of the possible the case when there is power that goeas from my ess system to the line

my updated figure is :

I assume multiplus-ii GX is able to run ESS mode 3 because it's a Gx device+ multi

It's able to measure the in/out power from/to the line by the current tore linked to the specific input.

I use APsystem micro inverter , is power output is measured by ET112 meter connected to USB/RS485 link of Multiplus-ii GX device

Is it possible to fix to the ESS algorythim at target for power export to the line ?

Is it possible to change this target dynamicaly ?

The final objective is to cycle on tima a day the lead accid battery

Regards

Michel


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