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Market Domain Data (MDD)

This page gives an overview of Market Domain Data (MDD) and provides guidance on how to carry out the MDD Change Request process.

The Overview of MDD document and in-depth Handbook are available to download from the table below.

To make changes to MDD, email a Change Request form and relevant Entity forms to the ELEXON MDD Coordinator: mddc@elexon.co.uk. All forms are in the table below. This process is published in BSCP509 - Changes to Market Domain Data and must be followed.

ELEXON sends out MDD Circulars in accordance with BSCP509.  For more information and to download an MDD Circular, go to the MDD Circulars page.

Notify me when a document is added/updated to this table Notify me when a document is added/updated to this table

TitleVersionIssue Date Documents to add to basket Notifying of updated documents
PDF IconOverview of Market Domain Data (48Kb)2.001/11/2007
Word IconBSCP509 - Entity Forms (982Kb)13.0 
PDF IconMDD Handbook (632Kb)1.001/11/2007
Word IconMDD Change Request Form (128Kb)15.001/11/2007

MDD Release Schedule

The MDD publication dates for the next year are in the table below. These dates are provisional and may change. The change request deadline date is the last date that change requests can be considered for a particular version of MDD. Change requests received after this date are incorporated into the following MDD release.

Refer to the MDD Circulars page to find out the dates for previous MDD version numbers.

MDD Version Number Change Request Deadline Publish Date Go-Live Date
V138 05/11/2007 30/11/2007 07/12/2007
V139 27/11/2007 04/01/2008 11/01/2008
V140 21/12/2007 29/01/2008 05/02/2008
V141 06/02/2008 04/03/2008 11/03/2008
V142 05/03/2008 03/04/2008 10/04/2008
V143 02/04/2008 29/04/2008 07/05/2008
V144 30/04/2008 29/05/2008 05/06/2008
V145 29/05/2008 25/06/2008 02/07/2008
V146 02/07/2008 29/07/2008 05/08/2008
V147 30/07/2008 26/08/2008 02/09/2008
V148 03/09/2008 30/09/2008 07/10/2008
V149 01/10/2008 28/10/2008 04/11/2008
V150 29/10/2008 25/11/2008 02/12/2008
V151 03/12/2008 07/01/2009 14/01/2009

MDD Feedback

As part of our mission to deliver the BSC effectively, efficiently and economically to benefit our customers, we’ve introduced a MDD feedback process to allow customers to comment on how we can improve the process. To give us feedback, please complete the Word IconFeedback Form(93Kb) .

What else would you like to see on this page? Email your ideas or feedback to mddc@elexon.co.uk.

MDD Coordinator

If you have any queries, please contact

Abi AkalaAbi Akala
MDD Coordinator

Telephone: 020 7380 4347
Email: abi.akala@elexon.co.uk

Registered office: 4th Floor 350 Euston Road London NW1 3AW   Reg Co No: 3782949 REGISTERED IN ENGLAND AND WALES