For those who are interested, I have developed a Garmin Watch Widget showing your PVOutput stats. If you configure the SystemID and API Key in the ConnectIQ App on your phone, it displays the values on your watch.
The Widget is still a bit basic, but the core functionality works properly - at least for myself 
You can disable consumption data if missing.
More than happy to receive feedback on the Widget and see if it can be improved.
Please check out: Connect IQ Store | Free Watch Faces and Apps | Garmin