Control of energy expenditure for communities

[davidchispas]

Here in the NL 100% of the measurement of GJ in a building with central heating is done with the meters on the radiator, ISTA has some nice wireless system for this that can be used for billing to 3th party.

So why are you not convinced?

Thanks Erwin, I seek to create a proprietary expense control so that we can have control of the installation.
Where the installation allows it, we install individual meters, do the calculation and view it on the home automation screens of the homes and within the same APP. Thus we facilitate the client, where with the same application he obtains control of his entire home.

So my question, if you know other types of devices to control those old installations.