Excuse me for not being able to do inline replies.
It does not look as though the regulation about mandating the IHD will be changed soon unfortunately from what we are aware of. The ability to monitor your energy anytime, anywhere is invaluable in our view. There is some interpretation possible
We hope to offer the GlowStick as SMETS2 as well but need enough orders to justify the manufacturing cost and minimum order quantities.
Sorry, hadn’t picked up the other thread - just had a very quick skim. So we already have the service the n3rgy offer and have been an approved Other User with SECAS (the Smart Energy Code Administrator) since July 2019.
Our SMETS1 devices (prior to the GlowStick we had a wired CAD) have been on the market since 2016 and are in thousands of homes across the UK. We are happy to give our customers API access to their data, and MQTT if required. We also support a number of research projects - and are like to have people develop their own Apps and algorithms that can be added to the ecosystem.
fyi, the reason Octopus can read your mum’s SMETS1 meters as smart may well be because they and First Utility are on the Secure SMSO (does she have Secure Meters?).
The Zigbee protocol is in the public domain, it is the required security protocols (based on keys) which are the limitation.