SEC Version 6.6 Designated

14 February 2019

On 14 January 2019 BEIS published a consultation seeking stakeholder views on the designation of the Transition and Migration Approach Document (TMAD) into the SEC.

Following consideration of stakeholder responses, BEIS has now published its conclusions and decided to designate the TMAD as Appendix AL ‘SMETS1 Transition and Migration Approach Document’ to the SEC on 14 February 2019.

The Government response and associated documents can be found below:


You can download a zip folder containing SEC v6.6 here, or download the individual sections of the SEC from the SEC and Guidance Documents page of our website. The redlined changes to the TMAD against the 14 January 2019 BEIS consultation can be downloaded here.