I thought this might be of interest to people here. We are starting to see consumer access devices (CADs) appear for the UK smart metering system (e.g. https://presciense.com/gateways/mira). These devices are conceived as giving home users access to all the juicy high-resultion high-accuracy data available from their smart meters over the Zigbee SEP Home Area Network.
This probably isn’t ready for prime time yet… it all relies on quite a few things… probably you need a SMETS2 metering system which no supplier seems to be installing at the moment, the supplier also needs to support a ‘remote pairing’ procedure (which is how these devices gain access to your home system), and who knows there may be compatibility issues with different meters based on past experience! But this would actually start to realise the value of this billion pound+ public investment by giving consumers and authorised third parties access to the meter data.