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Creation of a Tool to Manually Correct ERDS / CSS Discrepancies

  • 1
    Initial Assessment
  • 2
    Solution Development
  • 3
    Consultation
  • 4
    Decision
  • 5
    Awaiting Implementation
  • 6
    Implemented
Step 6 of 6
Implemented
Summary
There is currently a tool utilised by DNOs to manually correct registration data to align the Registered Supplier in ERDS with the data held in CSS. The Market-Wide Half Hourly Settlement (MHHS) Design does not allow for retrospective amendment of Supplier Registration i.e. there is no equivalent tool for manual correction post MHHS go live (M10). Therefore, post MHHS implementation, any issues which prevent CSS data being reflected in ERDS cannot be corrected. This will prevent the Supplier from appointing agents and will lead to errors in settlement data under the BSC. A change is required to address this.

Latest update and next planned activity

Date of latest update
Latest Update
This Change Proposal was implemented on 27 March 2026.

Impacts Overview

Priority and rationale
High

Priority last updated on 29 May 2026

Change Reports, Impact Assessments, Consultations and Documents

Change Reports
R0201 Change Report (Final) v1.0 Post Vote.pdf 30 Mar 2026 DOC
30 Mar 2026

Solution development

Problem Statement
There are instances where ERDS (and SMRS under BSC governance) can be misaligned with the CSS and under the MHHS arrangements there is no mechanism for manual correction which there is in place today. From MHHS go live the Supplier will not be able to appoint their preferred agents. This issue only applies to MHHS Migrated Metering Points as the existing mechanism for manually correcting data would be used if the issue related to a non-migrated Metering Point. In the event that the Supplier cannot appoint its agents, this may prevent the Supplier from accurately billing the Consumer. The potential impact will increase as MHHS Migration continues, with more MHHS Metering Points potentially impacted by any CSS / ERDS discrepancy.

No documents available.

Change Plan

Change Issue Group

Completed

Start:

01 Aug 2024

Due:

01 Aug 2024

Completion:

01 Aug 2024

Proposal Plan Approval

Completed

Start:

01 Aug 2024

Due:

03 Sep 2024

Completion:

03 Sep 2024

Original submission

Change details

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2 Aug 2024

Change details

Creation of a Tool to Manually Correct ERDS / CSS Discrepancies
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Priority & timing

No
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Activity

Status has been changed to Implemented.
holly.law has been allocated as Lead Analyst.
Change report - Final Change Report has been updated to Comments deadline for R0201 Change Report (Final) v1.0 Post Vote.pdf - 2025-10-07.
Implementation Date has been updated to 27 Mar 2026.
holly.law has been allocated as Lead Analyst.
Orphaned SME: Lead Technical Analyst, vaishnsharma have been allocated as SME.
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