question

mwerme avatar image

Do I need an Anti-Islanding box for my ESS? (Sweden)

Greetings all, I'm in the process of getting my solar installation fully operational but after reading a bunch about Anti-Islanding I am still not sure if I need to have that. I'm planning to have a setup where I use all of my energy production locally with no feeding back to the grid. I do want the Quattro device to be able to leverage the grid when solar output is low. Diagram attached shows my setup. Anyone able to shed light on how to proceed?


screen-shot-2021-09-18-at-164138.png

MPPT - Solar Charge ControllerMultiPlus Quattro Inverter ChargerESS
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2 Answers
maha avatar image
maha answered ·

You don't need a Quattro if you have only 1 ACin!

A MultiPlus II 48/5000 has the anti-island function included.

Certificates you find here:

Certificates

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Matthias Lange - DE avatar image
Matthias Lange - DE answered ·

You should ask a local Victron dealer/installer and/or electrician about the local laws.

The MultiPlus-II has a build-in NS-protection but I don't know if it is certified for the use in Sweden.
https://www.victronenergy.com/inverters-chargers/multiplus-ii-gx#certificates

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