The SMDA website will be unavailable from 9pm on Monday, 16 November 2026, to 5am on Tuesday, 17 November 2026, while essential server maintenance is carried out. Normal service will resume before regular working hours The SMDA website will be unavailable from 9pm on Monday, 16 November 2026, to 5am on Tuesday, 17 November 2026, while essential server maintenance is carried out. Normal service will resume before regular working hours The SMDA website will be unavailable from 9pm on Monday, 16 November 2026, to 5am on Tuesday, 17 November 2026, while essential server maintenance is carried out. Normal service will resume before regular working hours The SMDA website will be unavailable from 9pm on Monday, 16 November 2026, to 5am on Tuesday, 17 November 2026, while essential server maintenance is carried out. Normal service will resume before regular working hours

Planned website maintenance: Monday 16 November 2026

4th November 2026

Please be aware that the SMDA website will be unavailable from 9pm on Monday, 16 November, until 5am on Tuesday, 17 November, while essential server maintenance is carried out.

Users will be unable to access this website during the planned 8-hour maintenance window.

Normal service will resume once the maintenance is complete and before regular working hours.

Thank you for your understanding.

SMDA Newsletter October 2026 Update

12th October 2026

Dear All,

Here are the latest updates from the Smart Meter Device Assurance Scheme.

For more information on any of the items covered in this newsletter please contact SMDASO@talan.com.

Current activities

SMDA Organisation Certificates Manufacturer Pack testing
 
SMDA is pleased to confirm support for Device submissions having either Manufacturer Pack (MP)1 or MP2 Certificates.
These Organisation Certificate Authority (OCA) MP contain digital Certificates for organisations and Devices participating in the GB smart metering ecosystem.
  • MP1 is the original MP containing the first-generation Smart Meter Key Infrastructure (SMKI) Certificate chain and security configuration.
  • MP2 is the replacement/next-generation MP containing updated SMKI Certificates and trust chains.
MP2 is intended to extend smart metering Device trust and operational viability beyond MP1 by enabling Devices to remain securely trusted and operational into the late 2030s or early 2040s, depending on Certificate issuance timing.
To submit a Device for testing, or additional information, please contact
SMDA Sub-Committee representative seats
There are currently vacancies for representative seats on the SMDA Sub-Committee (SMDASC):
  • One Other SEC Party Display Manufacturer role
  • One Other SEC Party ESME Manufacturer role
  • One Large Supplier role
  • Two Small Supplier roles
To find out more about these roles and express interest please contact SMDASO@talan.com

Developments

SMDA Test Script and Specification changes

Each year, SMDA reports any Test Scripts or Test Specifications changes made as part of the SMDA’s strategy to keep Parties informed. In the past year, one significant change was made to the SMDA test pack: the reinstatement and update of two previously retired Future Dated scripts in August 2025:
  • SMDA-1582 Future Dated – GSME FD & Modify – SRV 1.1.1 (Tariff Update) & 1.2.1 (Price Change) – GCS01a & GCS02b
  • SMDA-1573 Future Dated – ESME FD & Modify – SRV 1.1.1 (Tariff Update) & 1.2.1 (Price Change) – ECSO1a & ECSO2b
Minor changes were made to the November 2021 SEC Release Test Scripts to resolve issues identified during the Test House User Entry Process Tests (UEPT) in April 2026:
  • SMDAN21-4 SRV 11.4 – Update Firmware – PPMID – GBCS CS05c
  • SMDAN21-5 SRV 11.2 – Read Firmware Version – PPMID – GBCS CS08
SMDA June 2026 SEC Release changes
The Scheme Operator (SO) has determined that no changes to the SMDA Test Specification or Test Scripts are required to align with the June 2026 SEC Release.
For details of the latest testing Baseline please refer to the SMDA June 2024 SEC Release Baseline available on the SMDA website.
SMDA November 2026 SEC Release changes
The SO has determined that no changes to SMDA Test Specification or Test Scripts are required to align with the November 2026 SEC Release.
For details of the latest testing Baseline please refer to the SMDA June 2024 SEC Release Baseline available on the SMDA website.

Looking Ahead

Parse and Correlate (P&C)

SMDA currently uses P&C v3.0 in testing and will review the latest version (v5.0) to assess potential upgrade options.
P&C is the software provided under SEC Section H11 that allows users to validate and interpret smart metering messages in line with the DCC interfaces and specifications. It ensures that Service Request messages sent to Devices are correctly understood and that returned messages can be interpreted by user systems.
DCC Connect Migration – Planned 2027
The SMDA Test House is working with the DCC on the migration from a physical DCC User Gateway Connection for accessing the DCC test environments to the cloud-based DCC Connect platform which would provide the same services. The following timescales are planned:
  • Target cutover commences from Gamma connection: November 2026
  • SMDA Test House migration planned: Q1 2027

If you wish to submit any feedback or questions, please contactSMDASO@talan.com. This can include testing issues that manufacturers would like to raise for discussion.

Best Wishes

Conroy Saunders, Head of SMDA SchemeOperator

SMDA Newsletter March 2026 Update

4th March 2026

Here are the latest updates from the Smart Meter Device Assurance Scheme.

For more information on any of the items covered in this newsletter please contact smdaso@talan.com.

Current activities

Following Gemserv’s rebrand to Talan, please ensure your organisation has added @talan.com to your email allow list to prevent the emails being blocked or marked as spam.

The new email address for the SMDA Scheme Operator is  smdaso@talan.com.

First Device Assured Against June 2024 SEC Release Baseline

We are pleased to confirm that the first Device has successfully achieved Assurance against the SMDA June 2024 SEC Release Baseline.

Device details are now available on the Device Assurance Register on the SMDA website.

Manufacturers are encouraged to submit Devices for testing against this Baseline to ensure they are aligned with the latest SEC Release requirements.

SMDA Change Procedure Updated

The SMDA Change Procedure has been enhanced to improve transparency and clarity.

Changes are now classified as:

  • Major Changes – Introduction or removal of test scripts:
    • Full SEC Party consultation required
  • Minor Changes – Script naming updates or minor corrections
    • Advance notification provided, with opportunity to raise objections

These updates strengthen visibility and ensure stakeholders have greater opportunity to review and comment before implementation.

The updated procedure is available on the SMDA website.

Developments

Future Service Management (FSM) – No Impact

Following review, FSM will not impact SMDA operations and as the Scheme will continue interacting with DCC via its Helpdesk.

SMDA Sub-Committee Election Results

We are pleased to confirm the following newly elected members:

  • Andrew Willman (BEAMA) – Other SEC Party ESME Manufacturer
  • Martin Bell (EUA) – Other SEC Party GSME Manufacturer
  • Patrick Caiger-Smith (GEO) – Other SEC Party In-Home-Display Manufacturer
  • Nick Thomas (Macquarie) – Other SEC Party Meter Asset Provider
  • Matthew Alexander (SSEN) – Electricity Network Operator

New term commenced: 01 December 2025

Thank you to those of you who participated in the election process.

The following seats remain vacant:

  • 1 Large Supplier
  • 2 Small Supplier
  • 1 Other SEC Party In-Home Display Manufacturer

Looking Ahead

June 2026 SEC Release Baseline

Initial review indicates no expected changes to SMDA Test Scripts.

An Impact Assessment will be presented at the April 2026 SMDA Sub-Committee meeting.

Parse and Correlate

SMDA currently uses Parse and Correlate v3.0 in testing and will review the latest version (v6.0) to assess potential upgrade options.

DCC Connect Migration – Planned 2027

Migration to the cloud-based DCC Connect platform is planned:

  • Target cutover commences from Gamma connection: November 2026
  • SMDA Test House migration planned: Early 2027

If you wish to submit any feedback or questions, please contact SMDASO@talan.com. This can include testing issues that manufacturers would like to raise for discussion.

Best Wishes

Conroy Saunders, Head of SMDA Scheme Operator

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