Hi Frank,
Depending on which technology is installed and which interfaces are on the meters, the data could be recorded centrally via LoRaWAN with system technology components. For this there are for example Pulse modules that are connected to existing pulse outputs. Another variant – often the case with electricity meters – is the conversion of Modbus to LoRaWAN. Consumption can also be transmitted wirelessly via bridges. A visualization of the consumption could be made in B.One Gallery.
If the meters in the systems do not have a communication interface, I do not see any possibilities to get all media into one platform without a costly exchange of devices.
Greetings
Rene