Energy IQ - Usage is not based on actual meter readings
We were away from home for about one week and wanted to try an experiment with usage data. Our heating was in away mode throughout and did not switch on.
I submitted regular meter readings within Energy IQ at the start of April, then on the day we left, and as soon as we returned, and on the following day. The meter readings clearly show zero gas usage for a 6 day period, and then only 4 m3 used on the next day, when we returned. Usage is now back to normal levels (around 4 - 6 m3 daily).
Despite this, the Energy IQ graph shows gas usage for the time we were away. Even though the gas meter readings show zero usage.
I queried this with Tado Support and was told:
"Please note that we are estimating the total energy consumed and not only energy consumed by heating. We do this by assuming a constant consumption of energy outside the usage for heating. This means we might show that energy was consumed even though you were not home during a certain period, or if your heating was completely turned off."
Surely this is wrong. It means the estimate takes no account of actual meter readings. If the readings show zero usage, where does the gas come from to supply this additional usage they speak about?
The methodology used for consumption in Energy IQ needs to be improved, to take better account of actual gas usage, from meter readings, as well as boiler performance via Tado.