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cajanus avatar image
cajanus asked

Feature Request: A NEVER, EVER CHARGE FROM THE GRID flag, please.

Hi,

I have a single-phase MultiPlus Compact 24/2000/50 which is AC-coupled to a 2kW Fronius MPPT.

After a cloudy day, the charger will kick in at sunset to top-up batteries from the grid. Or a cloud will come over during Absorption and charger will start importing power to continue Absorption during the day. [More than the 1A I have set as AC current input limit - why?]

I NEVER want my batteries charged from the grid - far too inefficient!

I looked at the Charge Control Assistant but it doesn't seem to be the solution.

Please can we have a flag to disable charging from the grid under any circumstances?

Cheers,

Mark





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3 Answers
derrick thomas avatar image
derrick thomas answered ·

Use ve config and untick "enable charger" on the charger panel.

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cajanus avatar image cajanus commented ·
Thanks Derrick. Yes, I am currently forced to do that, but I hope there's a solution which doesn't require my daily/hourly intervention, allowing PV recharging only.
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Rob Fijn avatar image
Rob Fijn answered ·

Believe this is already possible. Take a look at the Virtual Switch options with VEConfigure..
You can ignore the gird... with some conditions.
This is very powerful.

Enjoy.


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cajanus avatar image cajanus commented ·
Thanks Rob. I had a look. Enabling VS seems to disable all Assistants? I'm using a self-consumption Assistant to export excess PV power to the grid.
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derrick thomas avatar image
derrick thomas answered ·

Yes you are correct. You can either use vs, or assistants, but not both at the same time. Do you have a cerbo? You may be able to do something with os large and node red.

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cajanus avatar image cajanus commented ·

No, Derrick, I have no other blue boxes and don't want to increase the complexity, base power load and heat production of the system and lower its reliability. Hoping for a MultiPlus software solution if simple and possible.

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