I have an offgrid system with an ekrano and pair of MP2 5kva fed by a MPPT RS that has continual power consumption overnight, but my vrm overview chart shows matching bars for consumption and solar. I would expect that during the day the solar would be greater than consumption as the battery charges, and then consumption would be greater than solar as the battery discharges, but this is not the case. I think it used to show correctly before, but I don’t think I’ve changed anything that would cause this. Very confused. The realtime data shows correctly, and everything otherwise is working well.
I have the exact same problem. I only enabled DESS a couple days ago and my previous data always shows solar equal to consumption, with almost no power consumption in the night, but that’s not true as I have an idle load of around 500 watts. The prediction does not have the same issue. Did you find a solution to this?
I’ve since discovered that the cause of my problem is that the batteries I’m using (Ecoworthy 48v rack batteries) don’t provide the History/ChargedEnergy & HistoryDischargedEnergy values, or rather, provide them but don’t update them. Because they remain at 0, the graph data can’t determine the actual system consumption/charge amounts from battery. I’m looking into a nodered virtual battery to create these values to fix the issue: feat(virtual-battery): add History paths by dirkjanfaber · Pull Request #446 · victronenergy/node-red-contrib-victron · GitHub
Another solution would be to insert a Smartshunt, which does track those values correctly, and switch to that instead of the battery reporting over CAN. But unfortunately the way I have wired my batteries in order to distribute the current over multiple cables precludes doing that.
I implemented this in node red as a virtual battery and this solved the issue. Thank you so much!