My original topic on this subject was closed, hence I’m starting a new topic.
Strange DESS behaviour this morning again. Energy price is at the highest, the DESS forecast shows the battery is discharging to the grid, but nothing is happening! Why? Suggestions on what could be wrong. Will drop the details on the config in a view moments as well into this post.
@dognose you gave me good feedback in the original topic. Are you able to check again what is the issue in my config?
I’m running the latest firmware versions, see screenshot.
My battery has discharge as planned according DESS trade mode for zonneplan settings and DESS settings are at 25% in the ess settings on remote control (my minimum discharge setting) but the system is putting all exess solar in the battery. Soc now 32% and charging. GridMeter is around 0
So DESS falls back to ESS mode.
And all of a sudden he is discharging with 2kw. Why?
1,62 kWh charging and discharging means 0,324 kWh converted to heat!
DESS target state is now at 34% discharging stopped. Quick job from Victron staff! Thanks!
What does this mean and where did you find this? I want to check this on my config as well.
I’m still confused and don’t understand the situation as per message above.
Forecasted: in this hour and the next hour de DESS system still wants to discharge 2x 4kW or so. Seems to be a bit strange as the energy price is not at the highest price and the battery is fully charged.
But nothing is happening anyway, there is no energy being returned to the grid. It is even charging the battery, so the opposite of what is forecasted.
Thanks @huib for the hint. On the Multi RS Solar it works slightly different.
But I found the correct location thanks to your suggection:
But what does this mean actually? Can you explain? Hoe does this influence the DESS operations? And this morning not returning back to the grid at the highest energy price.
I am not sure, i am not an expert but with the previous dess problems this Target soc was at 0% while the system was in fact running in ess mode .
You cannot influence or change this value because it is the Target soc delivered by dess.
The inverters are then trying to get to that soc within that hour. (That’s my assumption based on trying to understand how it works).
The charging or discharging speed than must be calculated based on previous values about time needed to charge/discharge i guess.. ?
That’s why the system needs to learn your average consumption
Thanks for the feedback @huib appreciated.
At the moment I’ve even the feeling that the Victron system is squeezing the solar power generation. On this sunny day, 437W solar generation is not correct, it should be way more. The battery is full, so the solar power cannot go into the battery. But at least start returning it to the grid!
Looks like the system is running in ESS mode. But for sure the DESS button is enabled!
The solar return forecast to grid is there in the overview. But unfortunately noting is being returned to grid. The systems seems to be running in ESS mode. Don’t know how to change and/or investigate this! Suggestions? @doghouse any suggestions?
Thanks @DutchSolarFreak, Interesting features, where did you find this? I cannot set any ESS config at the following page:
And I cannot see/find these config options at the following page:
Where else could I find these settings?
I have a “Normal” Multiplus II" not the RS one. So maybe you have to check these settings in your MP-RS?
As you screenshot says 
RS System product page wherever that may be
Do you have DVCC enabled in your system? From the quick scan in the manual this feature can be configured with DVCC enabled, which I do not have at this moment in time.
I have access to two systems. One with DVCC enabled and one without.
Both systems are Normal MP’s. In both system I have these settings. In GUI-v1 and GUI-v2
So the limit settings are not related to DVCC (afaik)
Ok, found the issue. Finally. I guess this is due to a firmware upgrade, the Grid code configuration was set back to “None”. Therefore the Multi RS Solar doesn’t return power to the grid. Pppfffff. happy I found it.
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