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jejochen avatar image
jejochen asked

Charging EV with excess PV when battery full

Looking for a solution: using an ESS system, when homebattery is fully charged, ideally the excess solar power now is used to charge the EV if it is plugged in. Has anyone worked on such project? There are solutions to charge an ev with excess solar, but this doesn't include a battery in the system.

This one can be programmed together with the victron if i am correct, but have litteraly zero experience with this. Any thoughts?

https://github.com/goecharger/go-eCharger-API-v1/blob/master/go-eCharger%20API%20v1%20EN.md


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Rob Duthie avatar image
Rob Duthie answered ·

Hi

You can set one of the relays to switch when the SOC is at a certain point, by using VE configure.

On the Mulitplus inverter charger.

Regards

Rob D

NZ

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jejochen avatar image jejochen commented ·

Hi, thanks for the tought. I also considered this, but then there is tbe matter, that if you want to charge the ev when you need to, no matter what, there is no bypass option to start the charging. Also, when the relais switches on, the charger will pull full power to charge, instead of the excess solar power

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Bogdan Nedelcu avatar image
Bogdan Nedelcu answered ·

I posted a quick script to prevent draining the batteries while a large consumer draws power from the system.

https://community.victronenergy.com/questions/113114/software-attenuation-for-home-excess-pv-charging-o.html

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Lucian Popescu (Victron Energy Staff) avatar image
Lucian Popescu (Victron Energy Staff) answered ·

We have a new product, capable of doing this:
https://www.victronenergy.com/accessories/ev-charging-station

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Rob Duthie avatar image Rob Duthie commented ·
When are these availble in New Zealand?
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