This Practice Note provides an overview of the requirement on energy suppliers in Great Britain to roll-out ‘smart meters’ for their customers and the typical way in which energy suppliers structure projects to finance smart meters, procure smart meters and install the large volumes of smart meters necessary to do this. It also includes details of the key relevant regulation (including the Energy Act 2008 and the Smart Meters Act 2018), licences and industry codes and the nature and role of the key participants in the smart metering industry (including energy suppliers, Smart DCC Ltd, Ofgem, Meter Asset Providers (MAPS), Meter Operators (MOPs), and lenders).