Major Line Loss Factor Classes upload to Market Domain Data on 18 Nov.

Find out the latest updates for 9 November 2020 regarding the submission of Market Domain Data (MDD) Plan for Ofgem’s Targeted Charging Review (TCR).

Since October, Elexon has been meeting regularly with the Energy Networks Association (ENA) and Ofgem to discuss the approach to delivering the changes to Market Domain Data (MDD) and Line Loss Factor Classes (LLFC) for Ofgem’s Targeted Charging Review (TCR).

On 11 November 2020, Elexon will publish an MDD/TCR Change Request (CR) containing ~1,638 LLFCs and ~37,000 new valid set combinations.

This change was approved at the Supplier Volume Allocation Group (SVG) meeting on 6 October 2020.

Should you experience any impact on your systems, please contact the MDD Coordinator or Line Loss Factors Coordinator.

October publish

The MDD published in October included ~26,500 TCR LLFCs, which were approved by the Panel in their September 2020 meeting, in addition to the business as usual CRs that were approved by SVG. The October MDD was published on 14 October 2020 and went live on 21 October 2020.  As of today, we have not been made aware of any negative impact on parties’ systems. If you have however experienced any impact on your system, please do get in touch with us.

Next steps

We will be monitoring the progress of both the October and November published MDD, listening to feedback from parties. In addition we will continue to engage with Ofgem and ENA on a regular basis to plan the approach of adding the remaining LLLFC volumes needed for the TCR.

In parallel, Elexon are finalising plans with service providers regarding Industry Testing, for Participants, the BSC Central Systems, and subsequent Settlement processes that will be utilising  these increased volumes. We will provide an update to industry once we have finalised these plans.

More about MDD changes

Find out more about the large scale changes to MDD based on Ofgem’s TCR.

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