I’m aware that there are quite a few complaints about DESS out there. I’ve experienced some issues myself when I first activated it during the winter last year. After using only ESS during the summer, I decided to give DESS another try — and from what I’ve observed, it’s performing much better now.
Of course, there’s always room for improvement, and I’m confident Victron is continuously working on enhancements. Still, on many days, DESS does a pretty solid job.
Take today as an example: we’ve had little sunshine for several days, but the wind is blowing, which made energy prices low overnight. DESS purchased a few kilowatt-hours for just 17 cents, helping us get through the day without drawing power during peak pricing periods.
Admittedly, at the moment I don’t have any large consumers that are difficult to predict, such as an EVCS.
Let’s not forget to share positive feedback too! So Thank you Victron for the improvements 
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I can only agree with you 100%. My DESS has been running very well for about a year now. There will always be improvements, but the way it’s running now is a solid foundation. I’ve made some suggestions for improvement and pointed out a few problems, but I don’t want to go into them here. Thanks from me as well.
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I want to emphasize once again that DESS has improved significantly compared to last winter and is now making much more transparent and comprehensible decisions.
Currently, we are experiencing several days of very cloudy winter weather with extremely low solar yield. DESS is buying electricity at night when prices are low and successfully avoiding the high daytime tariffs (DE Tibber).
Great job, Victron 
What could be optimized further:
Since electricity prices remain relatively stable and low at night for several hours (around 27–28 ct), there is essentially no need to charge twice at maximum power. When this happens, the MPII ramps up to full capacity—and we all know how loud an MPII can get in a residential building. If the charging were spread out over several hours at a lower power level, the system would operate almost silently, the MPII would experience less stress, and the battery would benefit as well. This is, of course, fine-tuning, but it would make the setup even better.
