November 2021 SEC Release »

November 2021 SEC Release

The November 2021 SEC Release, due to go live on 4 November 2021, will contain DCC System impacting changes arising from SEC Modification Proposals. The following modifications are currently in scope:

SECMP0007 'Firmware updates to IHDs and PPMIDs'Implemented
MP077 'DCC Service Flagging'Implemented
MP090 'Incorporation of Non GBCS Non-Mandated Alerts into the SEC'Implemented
MP105 'Sending SR11.2 to Devices in Suspended State'Implemented
MP138 'DCC Service Testing in ETAD'Implemented
MP150 'Removing Table 28c from the GBCS'Implemented
MP157 'Removal of DUIS v1.1 and v2.0'Implemented
MP158 'Incorporation of multiple Issue Resolution Proposals into the SEC – Batch 5'Implemented
MP164 'November 2021 SEC Release supporting changes'Implemented
MP180 'Market-wide Half-Hourly Settlement Implementation'Implemented

The full scope of the release was baselined by the Panel on 14 May 2021.


SECMP0007 implementation approach

The SEC changes and Data Services Provider (DSP) elements for SECMP0007 will be implemented on 4 November 2021 (November 2021 SEC Release). The DCC and SECAS are proposing that the Communication Services Provider (CSP) system changes be delivered in the June 2022 SEC Release with the subsequent Communications Hub firmware updates being made as soon as they are available. The DCC is consulting on this approach with the industry before asking the Panel to endorse it.

Please note that Prepayment Meter Interface Devices (PPMIDs) and Home Area Network (HAN) Connected Auxiliary Load Control Switches (HCALCSs) can only be updated over-the-air (OTA) once the associated Communications Hub has its firmware updated to reflect the SECMP0007 solution.  These updates will be rolled out following the June 2022 SEC Release as soon as they become available.

More information on this approach and what benefits Service Users can expect to see at each point can be found here.


Change to the SECMP0007 CTSD implementation date

On 25 March 2021, the SEC Panel wrote to the Authority requesting to change the implementation date of the SEC Appendix R ‘Common Test Scenarios Document’ (CTSD) legal text under SECMP0007 ‘Firmware updates to IHDs and PPMIDs’. The Authority approved this request on 1 April 2021 and the SECMP0007 CTSD legal text will now be implemented on 24 June 2021 (June 2021 SEC Release). The Panel’s letter to the Authority and the Authority’s response can be downloaded below.


Release documentation

The SEC Release Implementation Document covering the modifications targeted for inclusion in this release is available below. This document was last updated on 22 October 2021 following MP149 falling out of scope.


Technical Specification supporting documentation

Provided below is a table of documents published to support the Technical Specifications for the November 2021 SEC Release. This includes mark-up, commentary identifying the modification and, where applicable, the Issue Resolution Proposal (IRP) the changes came from.

These documents reflect the approval of SECMP0007, MP090, MP105, MP150, MP158, MP164 as well as CRP613 and CRP649. We don’t expect any further modifications to be added to the scope of this release and therefore these Technical Specifications.

Document nameDate published
SEC Schedule 8 - GB Companion Specification v4.1 (draft 5)22 September 2021
SEC Schedule 9 - Smart Metering Equipment Technical Specifications 2 - 4 Nov 2021 (draft 2)20 July 2021
SEC Schedule 10 - Communications Hub Technical Specification v1.5 (draft 1)26 February 2021
SEC Schedule 11 - TS Applicability Tables v12.0 (v11.0 mark-up)2 July 2021
SEC Appendix AD - DCC User Interface Specification v5.0 (draft 2)20 August 2021
SEC Appendix AF - Message Mapping Catalogue v5.0 (draft 1)20 July 2021