It's a system which is intended to manage their solar current diverter (eddi) and car charger (zappi) and home battery, but I'm thinking that just a hub (connects to internet) and harvi (measures electricity) could do what you want.
I've been using it for a couple of weeks, and it seems to work well.
Are you using it for measuring solar exports or is it just co-incidental? If it does what I am hoping for could you post a screenshot here so I can see what I would get from it?
Many thanks