The smart meter is the benext p1 meter. No idea if this is already updated to 3.0
i found this:
Smart meters
If you are the developer of an app that adds support for smart meters (e.g. a P1 meter for The Netherlands), you should make sure that you set the cumulative flag in the device’s energy object.
Also make sure that you are not providing negative measure_power values to the setCapabilityValue method.
so i think its not updated yet?
