MHHS Incremental Changes for go live
Summary
This Issue looks to assess and confirm the scope to be taken forward into the Change Proposal that will deliver critical updates to the REC MHHS Code Drafting. Any potential scope items that have material impacts over and above the approved MHHS design will be considered as having unacceptable risk to the intended Change Proposal and will not be included in the confirmed scope.
Latest update and next planned activity
Date of latest update
Latest Update
22/09/25 - This Change Proposal has been implemented as part of the MHHS M8 22 September 2025 REC Release.
Impacts Overview
Priority and rationale
Priority last updated on 29 May 2026
Solution development
Problem Statement
It is critical to the implementation of MHHS that design changes approved by the MHHS Programme are reflected in the REC MHHS Code Drafting. The REC MHHS Code Drafting was approved by the Authority, to meet MHHS Programme Milestone M7, through R0209 and incremental changes that were not included under that Change Proposal, now need to be taken through REC change governance as captured under the R0209 RAID, Risk R001 and Assumptions A005 and A006.
No documents available.
Change Plan
Change Proposal Plan approved
Completed
Start:
30 Jan 2025Due:
04 Mar 2025Completion:
04 Mar 2025Issue scope developed and presented at Change Issues Group meetings (06 March, 03 April, 01 May)
Completed
Start:
04 Mar 2025Due:
01 May 2025Completion:
01 May 2025Solution and legal drafting presented to Code Drafting Working Group
Completed
Start:
01 May 2025Due:
13 May 2025Completion:
13 May 2025Solution and legal drafting endorsed by Cross Code Advisory Group
Completed
Start:
13 May 2025Due:
28 May 2025Completion:
28 May 2025Ofgem direction received
Completed
Start:
28 May 2025Due:
04 Jun 2025Completion:
04 Jun 2025Consultation published
Completed
Start:
04 Jun 2025Due:
17 Jun 2025Completion:
17 Jun 2025Change Report (Consultation) approved at Change Panel
Completed
Start:
17 Jun 2025Due:
17 Jun 2025Completion:
17 Jun 2025REC Change Panel vote on Code Manager's recommendation
Completed
Start:
17 Jun 2025Due:
15 Jul 2025Completion:
15 Jul 2025Authority referral sent
Completed
Start:
15 Jul 2025Due:
17 Jul 2025Completion:
16 Jul 2025Authority decision published
In Progress
Start:
17 Jul 2025Due:
05 Sep 2025Completion:
Original submission
Change details
- - -
30 Jan 2025
Change details
MHHS Incremental Changes for go live
-
-
-
-
Impacts
No details provided
No details provided
-
No details provided
-
No details provided
-
No details provided
-
No details provided
-
No details provided
-
No details provided
-
No details provided
-
No details provided
-
-
No details provided
Priority & timing
No
-
-
-
No details provided
-
Activity
Implementation Date has been updated to MHHS Programme Milestone M8 (Code changes delivered).
harriet.truss has been allocated as Lead Analyst.
Orphaned SME: Lead Technical Analyst, vaishnsharma have been allocated as SME.