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<p>Energy suppliers are required to install meters compliant with the Smart Metering
Equipment Technical Specifications (SMETS) in domestic and smaller non-domestic sites
by the end of 2020. Meters compliant with either SMETS 1 or SMETS 2 standards will
not need to be replaced by the end of 2020. As the SMETS 2 standard is not yet in
force no installed smart meters currently meet it.</p><p>Each energy supplier reports
the number of smart meters it has installed and is operating to DECC and includes
both meters that are SMETS compliant, and those they expect to upgrade to become SMETS
compliant. The Department publishes Industry Aggregate statistics:</p><p><a href="https://www.gov.uk/government/organisations/department-of-energy-climate-change/series/smart-meters-statistics"
target="_blank">https://www.gov.uk/government/organisations/department-of-energy-climate-change/series/smart-meters-statistics</a>.</p><p>Suppliers
have indicated that most of the smart meters they have already installed will need
to receive software updates before they are fully SMETS compliant. In most cases they
expect to provide the updates remotely and without needing to replace the meter physically.</p>
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