Most SMETS1 meters can be remotely updated to have SMETS2 functionality.
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As SMETS1 meters where originally installed on different management systems, they often failed when transferring between suppliers and stopped communicating. Having got DCC and SMETS2 meters working, it was decided to upgrade the SMETS1 meters to allow them to be managed through DCC. This would then allow them to operate correctly for most functions including sending meter readings and switching supplier.
The upgrade process involves updating the meter's firmware remotely and making changes in the old management system and in DCC. The migration process to the new DCC SMETS2 system is called Enrolment and Adoption (E&A).
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