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victronenergy / dynamic-ess

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[VRM - Bug]: Status about dynamic ESS and before #106

Closed pokeplayer2 closed 8 months ago

pokeplayer2 commented 8 months ago

Contact Details

No response

VRM portal ID

b827eb6ff17f

Country / region

Germany (de)

B max

26

TB max

6,5

FB max

7

TG max

30

FG max

30

Battery costs

0,02

Buy price

p+0.217+0.0161

Sell price

0,115

feed-in possible

yes

feed-in control

yes

What happened?

Here is the status of the dynamic ESS solution before I switched on and when it is on.

When did it happen?

13/10/2023 07:00

Screenshots

![DESCRIPTION](LINK.png)
pokeplayer2 commented 8 months ago

09/1010/2023 grafik

10/10/2023 grafik

11/102023 grafik

12/10/2023 grafik

13/10/2023 grafik

14/10/2023 grafik

15/10/2023 grafik

16/10/2023 grafik grafik grafik

Overall, we buy too much from grid during the expensive time with dynamic ESS. -> I will check another solution or go back to the old script.

dirkjanfaber commented 8 months ago

This is confusing. Your overview has a lot more costs than we can deduce. Your grid readings wildly differ from what is shown and recorded in VRM. For example your grid numbers (as recorded for the 16th of October): image

Which does not seem to match you graphs. From what measurements are your graphs coming from? If we check the VRM recorded measurements of L1, L2 and L3 from between 4:00 and 5:00, we are unable to match those to the 0.66 kWh grid usage your graph is showing: image

You are of course free to use whatever system you want and works for you. If the calculations happen with wrong data and assumptions, it is not surprising that the wrong actions are taken. At the moment that looks specific for your site, so it is interesting to check where the cause of getting the wrong values lies. And you are sure that this started when you enabled DESS? Or did more things change on your setup?

Also, which "old script" are you referring to?

pokeplayer2 commented 8 months ago

Thx for your feedback, since Friday is the API to get the grid data down for my power provider :-(
grafik so I can't trust them and VRM is correct. That is terrible, just when I start to test dynamic ESS was the API "down". All local screenshots are correct, but the screenshots from grid power company a wrong from 13/10/2023.

-> VRM got the right data!

dirkjanfaber commented 8 months ago

Admittedly I had not expected that, but at least it does explain the differences. Hope that your provider fixes their API issues soon, so we can really compare the numbers. If you don't mind I'll close this issue now. Please do create a new one when their API works again and the numbers don't match.