SECMP 0056: IHD / PPMID Zigbee Attributes Available on the HAN

Date raised 05/07/2018 Modifications Path Path 3 – Self Governance
Current stage Refinement Process Overall status Refinement
Refinement? Yes Urgent modification? No
Proposer name Emslie Law Proposer's organisation SSE Retail


Currently under the SEC, SMETS2 Type 1 and Type 2 devices (specifically In-Home Displays (IHDs) and Prepayment Interface Devices (PPMIDs), notwithstanding Consumer Access Devices (CADs)) are not notified of a Change of Tenancy (COT) or Change of Supplier (COS) event. This could allow a new tenant to access the previous tenant’s personal information and place the Supplier in breach of the General Data Protection Regulation (GDPR). The solution proposes to make the appropriate Zigbee attributes available to IHDs/PPMIDs on the Home Area Network (HAN) under SMETS2 as is currently the case in SMETS1.

Proposed implementation timetable

Modification Proposal raised: 05 July 2018

Panel considers Initial Modification Report: 13 July 2018

Targeted Working Group Consultation: Late August 2018

Targeted review of Draft Modification Report: 12 October 2018

Targeted Modification Report Consultation: 15 October 2018 - 05 November 2018

Targeted Change Board vote: 21 November 2018

Implementation date



  • Modification Proposal Raised
  • Initial Modification Report
  • Refinement Process
  • Modification Report
  • Change Board Vote
  • Modification Decision
SECMP0056 Proposal Form
SECMP0056 Initial Modification Report
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