Consultations for all Process, Operational and Credit areas

This page lists all Consultations relating to BSC and code processes, Market Entry and Compliance, and Operations and Settlement. The consultations allow ELEXON to gather feedback from the industry about proposed changes so that any concerns are considered as part of our processes.

This list does not include Change Consultations.

(Showing items 1- of 115)

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Consultation on how to align BSC reporting with EMR Regulations


The Schedule of EMR Settlement Data (which was agreed by ELEXON, LCCC, ESC and EMRS in 2015) specifies that EMRS will be provided with a BM Unit Gross Demand Report, containing the gross demand data that EMRS requires in order to calculate the payments due from each licensed Supplier.

But, since then, ELEXON has become aware of two evolutions:

  • In July 2017, BEIS and Ofgem published their joint Smart Systems and Flexibility Plan. This plan makes clear that BEIS and Ofgem now interpret the definition of ‘supply’ in the Electricity Act as meaning that the Supplier Obligation is not payable in relation to supply to premises occupied by a generator licence holder for the purpose of carrying out activities authorised under the generation licence, even if the generation is not ‘Licensable’.
  • ELEXON has been approached by parties seeking to facilitate exempt supply (by the operators of community generation assets to local customers) under the class A supply licence exemption. Because this supply is not being made by a licensed Supplier it should not be subject to EMR charges, but currently the BM Unit Gross Demand Report sent to EMRS includes these volumes in the gross demand for the licensed Supplier who has registered metering on behalf of the exempt supplier.

The consultation document seeks views on how we should progress interim and enduring solutions to these issues. The BSC Panel will consider responses to the consultation at their meeting on 8 November 2018.

Risk Evaluation Methodology (REM) 2019/20 Industry Consultation


This consultation asks respondents to review the Risk Evaluation Methodology 2019/20, and to submit any comments to by 22 October 2018.

We are proposing a revised Risk Evaluation Methodology in line with Performance Assurance Framework Review. Responses to this consultation will be presented to the Performance Assurance Board meeting on 29 November 2018. No response will be taken to mean that you agree to the proposed changes.

This Risk Evaluation Methodology represents a key step in the Performance Assurance Framework Review and outlines a new approach to evaluating risk. We are keen to ensure that you hear about these changes and understand the impact they may have on BSC Parties. This change will also likely impact how we evaluate PAP risk contribution.


To help you respond to this consultation, we will host a number of education webinars to provide an overview of the new methodology, and offer participants the opportunity to ask questions.
Recommended attendees for these seminars would be all Performance Assurance Parties, in particular any persons in Compliance, Risk or Operational Settlement roles.

The webinar dates are:

  • Friday 5 October at 10:30
  • Monday 15 October at 15:00

If you would like to attend either of these webinars, please email

MIDS Review 2018 Consultation


The Market Index Definition Statement (MIDS) defines the use of Market Index Data to calculate the Market Index Price (MIP), a price reflective of wholesale electricity for a Settlement Period in the short term market. An annual review of this document is required by the BSC, to ensure that the MIP is providing a reasonable reflection of the price of wholesale electricity in the short term market.

Changes to the MIDS timeband descriptions are recommended following BSC Modification P342, which decoupled the Submission Deadline for Energy Contract Volume Notifications (ECVNs) and Metered Volume Reallocation Notifications (MVRNs) from Gate Closure. BSC Modification P342 was implemented in November 2017.


Please respond using the consultation response form and send your responses, entitled  ‘MIDS Review 2018 Consultation’ , to  by 17.00 on Monday 22 October 2018.

P350 draft reference network mapping statement for Reference Year 2017-18


We issued a consultation on the draft reference network mapping statement for Modification P350 ‘Introduction of a seasonal Zonal Transmission Losses scheme’ to each Party. The network mapping statement is used for determining Nodal power flows in the calculation of Transmission Loss Factors. 


Please respond using the consultation response form and send your responses, entitled  ‘P350 Draft Reference Network Mapping Statement’, to  by 17.00 on Friday 14 September 2018.

Consultation for allocation of a new GSP to a GSP Group


ELEXON has received a new GSP registration application from the Transmission Company.

Southern Electric Power Distribution (SEPD) is connecting two new circuits into the existing East Claydon 132kV substation. This new Systems Connection Point will be registered in Settlement as a new GSP, to be known as East Claydon – Southern GSP (ECLA_H).

The Transmission Company propose that GSP ECLA_H is allocated to the Southern (_H) GSP Group.

A diagram showing the proposed change is included in the consultation document.


If you have any views on the allocation of the above GSPs to GSP Groups, please respond using the consultation response form and send your responses, entitled “East Claydon – Southern GSP Consultation”, to by 17:00 on Tuesday 11 September 2018.


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