Amendment to the Business Case for R0044
Summary
During MHHS System Integration Testing (SIT), additional requirements for the R0044 solution have been identified by the CSS provider, which means the business case for R0044 is no longer accurate. This Change Proposal will update the business case to include the additional costs.
Latest update and next planned activity
Date of latest update
Latest Update
On 19 August 2025, in line with the Code Manager Recommendation, the Change Panel voted to approve the updated Business Case for R0044 MHHS Programme Changes required to Central Switching Service.
Impacts Overview
Priority and rationale
Standard
Priority last updated on 29 May 2026
Change Reports, Impact Assessments, Consultations and Documents
Change Reports
Solution development
Problem Statement
The business case that was consulted on and approved as part of R0044 MHHS Programme Changes required to Central Switching Service is not accurate.
No documents available.
There is currently no Change Plan.
Original submission
Change details
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26 Mar 2025
Change details
Amendment to the Business Case for R0044
R0044 MHHS Programme Changes required to Central Switching Service was raised by the Market-wide Half-Hourly Settlement (MHHS) Programme to implement the necessary Retail Energy Code (REC) changes in relation to a new Data Communications Company User Role for the Meter Data Retrieval service (MDR). In the business case assessment for this change, the costs provided by the CSS Provider in the change report for consultation were £297,000. This Change was approved for implementation for the date that is determined by the MHHS Programme for its
Milestone: M8 ‘Code changes delivered’.
During MHHS System Integration Testing (SIT), additional requirements have been identified by the CSS provider, which means the business case for R0044 is no longer accurate.
Milestone: M8 ‘Code changes delivered’.
During MHHS System Integration Testing (SIT), additional requirements have been identified by the CSS provider, which means the business case for R0044 is no longer accurate.
The business case that was consulted on and approved as part of R0044 MHHS Programme Changes required to Central Switching Service is not correct.
The CSS provider costs to implement this change should be updated in the business case assessment, the cost benefit analysis re-done, and the code manager recommendation should consider the new the updated cost benefit analysis.
R0044 MHHS Programme Changes required to Central Switching Service
Impacts
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Trust and confidence
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Priority & timing
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Trust and confidence
Activity
holly.law has been allocated as Lead Analyst.
Change report - Final Change Report has been updated to R0251 Change Report (1).pdf, Comments deadline for R0251 Change Report (2).pdf - 2025-08-15.
Change Report - Initial Assessment and Change Plan Report has been updated to Comments deadline for R0251 Change Report.pdf - 2025-07-14.
holly.law has been allocated as Lead Analyst.