Thank you. That would explain why some users have asked about it working with high numbers or not.

I'll leave it as a suggestion. If more people vote for the feature I might add it.

Sensor alerts (email) and alert log is now implemented.

I notice you have changed the name to "6 Gaestezimmer". But there are no data logged for that sensor. That is the reason that the graph does not change. Perhaps the battery is low and the signal does not reach the tellstick device.

Can you try again now? I have modified the formula to show kWh.