Latest Market Domain Data Circulars: December 2021

We issue two Circulars during each Market Domain Data (MDD) Release. These are: Impact Assessment Circulars that informs you of the proposed changes to be included in the next Version of MDD; and a Final Circular that confirms the changes being committed to the next Version of MDD.

Latest Circular

On 22 December 2021, we published MDD Circular 00758.

MDD Circular 00758 details the proposed BAU MDD changes to be included in the release of MDD Version 319, and invites Market Participants to perform an impact assessment on these. 

Previous Circular

On 8 December 2021 we published MDD Circular 00756.

MDD Circular 00756 details the routine changes approved for inclusion in the release of MDD Version 318 and the TCR changes approved for inclusion in the release of MDD Version 319.

Change Requests to support Ofgem’s Targeted Charging Review (TCR) Significant Code Review (SCR) are being submitted for approval a month in advance, to facilitate the extra time required to process the large volume of TCR changes.

All MDD Circulars

Market Domain Data (MDD) Circulars are sent out in accordance with BSCP509 ‘Changes to Market Domain Data’. Circulars are sent to Market Participants. See a list of previous circulars using the link below.


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