DESS not working

I have just tried DESS again over two days (did a similar thing in the spring) and it just wont work for me. PV is throttling down to match house loads and not charging the battery as would be expected.

If I turn DESS off the PV recovers to the full output and sends the excess to the battery.

DESS on:

DESS off:

Any ideas? Strong bright clear skies at the time.

Does DESS work for anyone?? I have posted this issue twice now and had no response. So i guess under my configuration its useless. Would like someone to explain why though!!!

Are you using dynamic prices? What are your DESS settings? If battery cost is too high there might be scenarios where charging the battery is prevented.

I am using and two tier pricing structure at the moment and have battery costs turned all the way down to try to get it to work. I was on dynamic in the spring and can go back to it as soon as I am comfortable it is stable and works in the real world!

Do you have a screenshot of your price settings in dess?

Do you have a higher resolution one?

Edited the original post.

Have you put in sell prices also?

No export at all.

DESS does not charge the battery at all? Or not when you expect it to? Does it follow the schedule it’s made?

it seems not not to charge at all. I have morning and evening scheduled charge periods set up (35%) to give me some ups headroom on our frequent outages. Also it definitely doesn’t follow the estimated schedule graph.

It works well on one site, import only. On two others ift refuses to switch on!.

I’ve had problems making it work with manual pricing on 2 sites. With dynamic prices it seems to work OK. I didn’t get any answers either,

Still an issue for me too.