question

mich888 avatar image

which product does it all

Tired of not finding a clear answer in de product descriptions. I'm looking for a charger inverter ups-function which will also delivers power to the grid when the batteries are full or not connected. Do all inverters de this? Or none of them? Or did I miss one.

Thanks, Mich

MultiPlus Quattro Inverter Chargerbattery chargingPhoenix Invertergridups
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3 Answers
Matthias Lange - DE avatar image
Matthias Lange - DE answered ·

Not sure about the "no battery connected" part but the other is possible with all MultiPlus (+ GX device) with the right configuration.

https://www.victronenergy.com/live/ess:start
https://www.victronenergy.com/live/venus-os:start

But you also must have an eye at you local laws and restrictions about that topic.

You should get in touch with a local Victron partner/installer.
He can help you to find the right components for what you want to accomplish.

https://www.victronenergy.com/where-to-buy

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mich888 avatar image
mich888 answered ·

Last year I replaced a stecagrid (blown fet) with a growatt and now it looks like a couple of enphases have given up (red flashing leds). They have barely recovered the cost. So I'm looking for something reliable for all contingencies in one.

So if I understand correctly I can connect a small battery to a multiplus, feed the growatt gridinverter into the multiplus and it should work as I intended?

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As long as the growatt supports frequency shit control, also you need to size the battery adequately for the PV size.
https://www.victronenergy.com/live/ac_coupling:start#minimum_battery_capacity

alan avatar image
alan answered ·

You need to be more specific, do you want solar PV input fed back to the grid? Without a Battery.

Then the ability to add a battery?

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That is exactly correct.

Victron Don't make a grid tie inverter.

They make bidirectional inverter/chargers designed for offgrid fulltime supply off batteries.

Most of the "hybrid" solar inverters, including the new fronius gen24 are only designed for around 5hours of backup on battery alone. Being transformerless they are simply not designed to cope with the continuous surge loads a offgrid installation needs to cope with.


The victron multiplus range have the ability to feed into the grid, but the PV input either needs to be AC or DC coupled through another device, and they always require a battery.

So, if you want to go victron, and want to start with a standard grid feed in no battery system, my suggestion would be to go with a fronius system first, then add a multiplus and battery later.


The other option is to go a multiplus, mppt regulator, battery and panels. To begin with.

The closest thing victron have to an all in one is the Easysolar range, but they always require a battery.