#Battery Input negative

1 messages · Page 1 of 1 (latest)

civic ivy
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I have a Bluetti AC200L Battery which can charge from the grid. If I configure it as a battery storage in the energy dashboard it is shown but the input to the battery gets deducted from the total grid energy which is not the proper case. How do I configure the Battery in the dashboard correctly, so that it is calculated correctly?

versed nexus
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It's not really configurable.
It is expected that grid to battery energy is accounted in the grid input sensor.

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E.g.
If battery in = 1kW
If grid in = 2kW
Your home consumption is then 1kW

civic ivy
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you mean battery out

versed nexus
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No I didn't mean that.

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You could have battery out as well, but I was referring to charging the battery

civic ivy
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i have both

versed nexus
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Yes I would expect that

civic ivy
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Battery IN = Grid

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Battery Out = devices that consume energy (not directly grid)

versed nexus
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Sure.

civic ivy
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so technically both should count as energy consumption

versed nexus
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energy is consumed when it comes out of the battery, not when it goes into it

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Maybe can you restate your original question?
I think we're in agreement on everything, but I'm not clear what your issue is.

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I believe battery charging always shows on the bottom side of that graph

civic ivy
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to my understanding: negative power consumption means deduction of overall power usage

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if so, then charging the battery means i get free energy

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which is not the reality

versed nexus
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I think that's not really how that chart is intended to be read.

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It's just always been consumptions on the top half, charging battery and return to grid on the bottom half.

civic ivy
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but actually charging the battery depends on the energy source. you can not globally say that charging is negative consumption. If the battery gets charged from excess solar energy, then it would be negative budget

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if the battery gets charged from the grid it has to be counted as grid consumption

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thats why my battery has a DC input power and and AC input power

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But the energy dashboard does not allow that kind of configuration

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it just assumes that battery input is good and does not cost effective money

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so probably i have to define a dummy sensor that always reads 0KWh as input for the battery and pin the AC input to the grid consumption

versed nexus
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All I can suggest is don't get hung up on the fact that the battery charging is shown as negative on that graph. Its not affecting your costs.
Battery input does cost money, because battery input comes from the grid input, and grid input costs money.
That graph is not a representation of cost, it's just a representation of energy flows in the home.

I can't recommend trying to trick the configuration with arbitrary dummy sensors, it's just likely to break something else.

civic ivy
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I tried now several combinations and I am not sure I understand how the dashboard is calculating the energy flows. For now I removed battery from the dashboard again and added the battery input as a consumption sensor. This way the energy flows seem to be plausible.