The Developing SEC »

The Developing SEC

Development Versions of each SEC Section are available to aid SEC Parties in understanding how the SEC is developing in between the designation of new versions of the SEC.

These show live content alongside any content that has been concluded on by BEIS but not yet designated by the Secretary of State (SoS). They also include text that is still undergoing consultation and has not yet been concluded on. The table at the beginning of each document provides a history of how each Section has evolved over time, with links to consultation and decision documentation.

You can find each Development Version of the SEC Sections under the documents section on this page.

Please note, these documents are provided for reference only as the content in these Development Versions may differ from what is formally designated.

 

Test Approach Documents

Below is a table of Test Approach Documents that have been approved by the Secretary of State for Releases 2 and 3 pursuant to the processes set out in the SEC Variation Testing Approach Document (SVTAD) and the SVTAD for SMETS1 Services respectively. These documents are not formal SEC Appendices but they do, however, confer rights and obligations on SEC Parties and so form part of the SEC contract.

Document NameDate ApprovedDocument Link
System Integration Test Approach Document Release 222 February 2018 Release 2 System Integration Test Approach Document
Device Integration Test Approach Document Release 2 v1.25 June 2018 Release 2 Device Integration Testing Approach Document v1.2
User integration Test Approach Document Release 2 v1.25 June 2018 Release 2 User Integration Testing Approach Document v1.2
User Testing Services Approach Document for SMETS1 Services13 January 2020 User Testing Services Approach Document for SMETS1 Services
Migration Testing Approach Document for SMETS1 Services v1.36 February 2020 Migration Testing Approach Document for SMETS1 Services
System Capacity Testing Approach Document v1.03 July 2019 System Capacity Testing Approach Document v1.0

 

SEC Documents for DCC SMETS1 Services Release (Release 3)

Provided below is a table of SEC documents that have been baselined to support this Release. Content that had previously been baselined for this Release has now been included in Release 2 documents.

SEC Document nameDate BaselinedDocument Link
SEC Appendix B - Organisation Certificate Policy v1.2 draft21 February 2018 SEC Appendix B - Organisation Certificate Policy v1.2 draft
SEC Appendix E - UISS v1.2 draft20 February 2019 SEC Appendix E - UISS v1.2 draft
SEC Appendix I - CH Installation and Maintenance Support Materials v1.3 draft19 December 2018 SEC Appendix I - CH Installation and Maintenance Support Materials v1.3 draft
SEC Appendix M - SMKI Interface Design Specification v1.2 draft21 February 2018 SEC Appendix M - SMKI Interface Design Specification v1.2 draft
SEC Appendix Z - CPL Requirements Document v1.1 draft27 February 2018 SEC Appendix Z - CPL Requirements Document v1.1 draft 2
SEC Appendix AB - Service Request Processing Document v1.2 draft 320 February 2019 SEC Appendix AB - Service Request Processing Document v1.2 draft 3
SEC Appendix AC - IEDP v1.4 draft20 February 2019 SEC Appendix AC - IEDP v1.4 draft
SEC Appendix AD - DCC User Interface Specification v3.0 draft 319 December 2018 SEC Appendix AD - DCC User Interface Specification v3.0 draft 3
SEC Appendix AF - Message Mapping Catalogue v3.0 draft 218 October 2018 SEC Appendix AF - Message Mapping Catalogue v3.0 draft 2
SEC Appendix AG - Incident Management Policy v1.2 draft20 June 2018 SEC Appendix AG - Incident Management Policy v1.2 draft
SEC Appendix AH - Self Service Interface Design Specification v1.2 draft20 June 2018 SEC Appendix AH - Self Service Interface Design Specification v1.2 draft
SMETS1 Testing Baseline Requirements Document v1.1023 January 2020 SMETS1 Testing Baseline Requirements Document

 

DCC November 2019 Release

Provided below is a table of documents published to support the implementation of the DCC November 2019 Release.

SEC Document nameDate BaselinedDocument Link
Schedule 8 - GB Companion Specification (GBCS) V2.1 - V3.2 mark-up21 June 2019 GBCS v2.1 - v3.2 designated changes
Schedule 9 - Smart Metering Equipment Technical
Specification (SMETS) V3.1 - V4.2 mark-up
10 June 2019 SMETS v3.1 - v4.2 designated changes
Schedule 10 -
Communication Hubs Technical Specification (CHTS) V1.1 - V1.3 mark-up
10 June 2019 CHTS v1.1 - v1.3 designated changes
Appendix AF - Message Mapping Catalogue Version 3.1 Draft 210 June 2019 MMC v3.1 Draft 2
Appendix AD - DCC User Interface Specification Version 3.1 Draft 528 July 2019 DUIS v3.1 Draft 5

Note: Please refer to the SEC Schedule 11 – TS Applicability Tables for current applicability. The GBCS, SMETS, and CHTS documents in table above are intended as guidance for their latest designations on 4 July 2019 for implementation in the November SEC Release. They contain all mark-up of changes since the last active version up to this latest designation.

 

DCC November 2020 Release

Provided below is a table of documents published to support the implementation of the DCC November 2020 Release.

SEC Document nameDate BaselinedDocument Link
Schedule 8 - GB Companion Specification (GBCS) v4.0 draft 23 Feb 20 GBCS v2.1 - v4.0 Draft 2
Schedule 9 - Smart Metering Equipment Technical
Specification (SMETS) v5.0 draft 3
3 Feb 20 SMETS2 v5.0 draft 3
Schedule 10 - Communications Hub Technical Specification (CHTS) v1.4 draft 13 Feb 20 CHTS v1.4 draft 1
Schedule 10 - Communications Hub Technical Specification (CHTS) v1.n draft 23 Feb 20 CHTS v1.n draft 2

 

SEC Release Notes

The Release Notes in the Table below have been issued by BEIS to help SEC Parties interpret the SEC documents they relate to.

Document nameDocument Link
Release Note GBCS V2.0 Release Note GBCS V2.0
Release Note GBCS V2.1 Release Note GBCS V2.1
Release Note GBCS V3.0 Release Note GBCS V3.0
Release Note GBCS V3.1 Release Note GBCS V3.1
Release Note GBCS V3.2 Draft 2 Release Note GBCS v3.2 Draft 2
Release Note GBCS V3.2 Draft 3 Release Note GBCS v3.2 Draft 3
Release Note GBCS V3.2 Draft 4 Release Note GBCS v3.2 Draft 4
Release Note GBCS v4.0 – Final Release Note GBCS v4.0 - Final
Release Note SMETS V3.0 Release Note SMETS V3.0
Release Note SMETS V3.1 Release Note SMETS V3.1
Release Note SMETS V4.0 Release Note SMETS V4.0
Release Note SMETS V4.1 Release Note SMETS v4.1
Release Note SMETS V4.2 Draft 1 Release Note SMETS v4.2 Draft 1
Release Note SMETS V4.2 Draft 2 Release Note SMETS v4.2 Draft 2
Release Note SMETS v5.0 Draft 3 – Final Release Note SMETS v5.0 Draft 3 - Final
Release Note CHTS V1.1 Release Note CHTS V1.1
Release Note CHTS V1.3 Draft 1 Release Note CHTS v1.3 Draft 1
Release Note CHTS v1.4 Draft 1 Release Note CHTS v1.4 Draft 1
Release Note CHTS v1.n Draft 2 Release Note CHTS v1.n Draft 2
Release Note DUIS V2.0 Release Note DUIS V2.0
Release Note DUIS V3.1 Draft 4 Release Note DUIS v3.1 Draft 4
Release Note DUIS V3.1 Draft 5 Release Note DUIS v3.1 Draft 5
Release Note MMC V2.0 Release Note MMC V2.0
Release Note MMC V3.1 Draft 2 Release Note MMC v3.1 Draft 2
Release Note UISS V1.1 Release Note UISS V1.1
Release Note SRPD V1.1 Release Note SRPD V1.1

 

Testing matters

Testing Issue Resolution Process

This document explains how Testing Issues are identified, undergo triage and are resolved in and efficient and timely manner. This includes the process for referring Testing Issues where the Testing Participant disagrees with the outcome of the issue resolution process. The Testing Issue Resolution Process requirement is defined in the SEC Section H14.37.

Testing Issue Resolution Process

Testing Related Appeals During Transition

This document explains the circumstances in which the Secretary of State (or such other persons as the Secretary of State directs) will consider appeals and referrals from SEC Parties and others relating to certain testing matters during transition.

Testing Related Appeals During Transition – Guidance (Updated 15 07 15)

Non GBCS Non Mandated Alerts (NGNM)

Device Alerts are unsolicited messages sent by Devices to DCC Users e.g. the Supplier. The Great Britain Companion Specification (GBCS) defines the structure of the Alerts and contains a listing of Alerts, distinguishing between mandated and non-mandated Alerts.

GBCS Parse software allows any new non-mandated alerts of the right format (as specified by the GBCS) sent by Devices to be passed to the DCC User. These new non-mandated Alerts are captured temporarily in the below ‘Non-GBCS-Non-Mandated-Alerts-Register’ until they are adopted by the SEC:

Non GBCS Non Mandated Alerts Register

 

Suppliers and manufacturers have a general (but non regulatory) responsibility to ensure all Alerts supported by their Devices beyond those specified in the SEC are captured in the ‘Non-GBCS-Non-Mandated-Alerts-Register’ until they are adopted by the SEC.

The form and process to raise a new NGNM Alert Code can be accessed using the below Excel Workbook:

Non GBCS Non Mandated Alert Form