Also please point me at the process for getting an approved unit registered/connected.
There are a few lively threads on these forums but no definitive answer (that I could find) on the white listed CAD devices and connection process.
Best answer by Tim_OVO
According to the smart meter team, we're only in a contract with the manufacturer, Hilderbrand.
I have checked and this is subject to change, but any other CAD providers would need to contact us to get the ball rolling. We have T&Cs to make sure that our devices and our members' data is safe. They need to agree to those, so that we can allow that 3rd party CAD to be paired up with our smart meters.
This isn't something that we can advise on directly as you might expect.