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andrii asked

Not mixed solar

Hello guys! I have several systems for multiplus and quattro with pylontech batteries (us2000c). I have the following problem: when setting the keep batteries charged (when the batteries are 100% charged), solar energy is not mixed into the load. I use MPPT Smart Solar controllers. Please help me solve the problem. In other modes it's correct. Thanks.

MPPT ControllersMultiPlus Quattro Inverter Charger
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marekp answered ·

@Andrii

If you have ESS assistant loaded select "DC-coupled PV -feed in excess" to ON.

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andrii answered · 
But with this setting, excess solar energy will be fed into the grid, which I do not need.
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marekp avatar image marekp commented ·
@Andrii

If you set the "Maximum feed-in" to 0W or even negative number it will not feed the grid.

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nickdb avatar image nickdb ♦♦ commented ·
Just try it as a test briefly. Don't leave it on, it helps narrow down the cause.

Usually with keep batteries charged, only when the batteries are full-ish, solar would power some or all of the load, the delta coming from grid.

In your case is it all coming from grid?


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andrii avatar image andrii nickdb ♦♦ commented ·

Yes, in my case is it all coming from grid. When DC- coupled PV is ON, solar energy mixed, but it's OFF, solar is 0 or 5W. When I do this several times, the system will start working correctly, but after a while it may repeat and the solar energy is again 0W

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