I love to see my Plugwise stick integration is usable 
To anyone who is interested I just have updated the library and the required custom component files.
Besides some code fixes and cleanups, this release corrects the power consumption calculation of historic power use (last hour, today & yesterday). It also adds the power production messurement of Circle plugs.
@koter84, I’ll have a look into the warning messages.
@bouwew, we must indeed make a clear distinction between the old and new Plugwise products. I’ve called my integration plugwise_stick to “link” the name to the required (legacy) USB stick. I intend to emphasize this in the linked documentation when I do the final pull request to append this integration to HA core.