Hi
As I understand it the Hildebrand Glow is just another IHD on your local zigbee HAN. Therefore until the Octopus IHD works the Glow won’t work. The main IHD difference is that it has a wifi connection as well and Hildebrand being licensed by the DCC (in the south west. I don’t know who covers Wales) are able to read the meter directly which they do every 5 to 6 seconds. The data is then available on Hildebrands Bright App and via API. They also publish data via MQTT
The API details are here:-
The MQTT is undocumented and is a json object but with some zigbee documentation I was able to work out what the gas and electric meter fields are.
I will confirm with Hidebrand that the zigbee documentation is OK to publicly share and if so will post details here or maybe @JaneatGlow will respond.
I am processing the MQTT data in nodered but have some issues publishing to emoncms as described in this thread:-