Post-MHHS Full Transition Complete (M15) REC updates
Date of latest update
Type
Issue
ID
I0325
Change Category
Other Industry Codes impacted
Change Path
Priority
Urgent
No
Latest Update
21/07/2026 - On 21 July 2026, the REC Change Panel voted to approve the Change Report (Proposal Plan) for I0325.
Summary
The REC was updated, primarily through R0209 and R0241, to add requirements that support the transition to, and enduring operation of the MHHS arrangements. As part of the transition, each impacted Metering Point will be migrated using processes defined in Codes, including the REC. Once this migration activity is complete, the legacy and transitional arrangements will become redundant and should be removed from the REC to support its efficient operation
Impacted REC Documents
Impacted REC Services
Impacted REC Parties and Market Participants
Status
Status
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Problem Statement
Retention of redundant obligations within the REC would make it more complex to navigate for Market Participants and could cause confusion on the obligations that are in effect to support the efficient operation of the Great British Energy retail market. It is also worth noting that until Ofgem formally closes the MHHS Significant Code Review (SCR), this REC Issue could potentially impact that SCR.
Stages Selection
Stages Selection
SME
SME Role
Lead Technical Analyst
SME Role
Lead Assurance Analyst
I0325 submission form
I0325 Scope list
Company Name
-
Review status
Review required
Schedule 28 - Related Metering Points 2.1
– Implemented on
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Schedule 28 - Related Metering Points 2.0
– Implemented on
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MHHS Related Metering Points across Market Segments
Date of latest update
Type
Issue
ID
I0275
Change Category
Other Industry Codes impacted
Change Path
Priority
Urgent
No
Latest Update
06/11/2025 - Following discussions at the Change Issues Group on 06 November, a REC guidance will be developed to support the resolution of this Issue after which it will be classed as resolved.
Summary
It has been identified by the MHHS Data Cleanse Working Group (DCWG) that around 9,000 existing Metering Point Relationships include Metering Points that would migrate into different Market-wide Half Hourly Settlement (MHHS) Market Segments. The majority of these are where one Metering Point has a Traditional meter installed (Smart Segment) and a Related Metering Point has an Advanced meter (Advanced Segment). This situation is currently valid but in MHHS would cause two problems. - SMRS would not be able to align the agent appointments, leaving secondary MPANs without agents and MHHS Migrations unable to fully complete.
Impacted REC Documents
Impacted REC Parties and Market Participants
Status
Status
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Problem Statement
Without considering this Issue, there will be a risk to the MHHS migration. Indeed, a Metering Point installed which does not match its Related Metering Point (for example a Relationship between a Traditional meter with an Advanced Meter) will not be able to fully migrate to MHHS arrangements.
Stages Selection
Stages Selection
I0275 submission form
Company Name
-
Review status
Review required
Schedule 28 - Related Metering Points 1.2
– Implemented on
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Schedule 28 - Related Metering Points 1.1
– Implemented on
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Non dual-fuel Gas PSR Consumer
Date of latest update
Type
Issue
ID
I0186
Change Category
Change Path
Priority
Urgent
No
Latest Update
26/08/2025 - Update to Proposal Plan published. This will be presented to the REC Change Panel at their meeting on 02 September 2025.
Summary
Non dual-fuel Consumers who register upon the PSR, will have their PSR data flow across energy industry data flows to mean that all parties are aware of any PSR Needs Codes, allowing us all to provide equal access to our services and support. This will be achieved via the utilisation of existing processes and systems. Initially a pilot will take place for a minimum of 3 months between participating companies before extending this to the whole industry”.
Impacted REC Documents
Impacted REC Services
Status
Status
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Problem Statement
The majority of domestic customers in the UK are what are called in the industry ‘dual-fuel’ - this means that with two types of energy (electricity & gas) a domestic dwelling has a single supplier ie they pay their bill to one organisation. This ‘dual-fuel’ position has supported the industry improvements to Priority Services Register (PSR) data flows by allowing previous divides to be overstepped in terms of data flows between energy types. There is however a problem which this RECC request aims to resolve. That is, where a customer who has both fuel types, also has two suppliers and they want to register upon the PSR. This was always a ‘known’ gap shared with our regulator when the many improvements were implemented across the PSR and considered to be something that would be addressed at a later date. This ‘gap’ means that without the dual-fuel link, currently data flows do not complete across energy types via the supplier data flow triggers.
Stages Selection
Stages Selection
Change Proposal Form - Non dual-fuel Gas PSR Customer
I0186 - Change Report (Proposal Plan) V1.0 (Approved) 18.02.2025
Company Name
British Gas
Review status
Review required
Schedule 28 - Related Metering Points 1.0
– Implemented on
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REC V3.0
Date of latest update
Type
Change
ID
R0041
Change Category
Urgent
Yes
Latest Update
_
Summary
_
Change Plan
Legal text baselined
Completed
Start:
10 Apr 2022Due:
13 May 2022Completion:
13 May 2022Final Change Report Issued
Completed
Start:
13 May 2022Due:
20 May 2022Completion:
20 May 2022Responsible Committee Decision
Completed
Start:
20 May 2022Due:
07 Jun 2022Completion:
07 Jun 2022Authority Determination (Original)
Completed
Start:
07 Jun 2022Due:
20 Jun 2022Completion:
17 Jun 2022Authority Determination (revoked and re-issued)
Completed
Start:
20 Jun 2022Due:
29 Jun 2022Completion:
29 Jun 2022Impacted Consumers
Impacted REC Documents
Impacted REC Services
Impacted REC Parties and Market Participants
Status
Implementation Date
18 July 2022
Implementation Status
Date Raised
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed solution summary
- As a Consumer, I want to be able to successfully switch my Energy Supplier with minimal delay or hassle, so that I can start to receive the service and tariff from my chosen Energy Supplier at the earliest opportunity.
- As the Authority, I want the necessary changes made to the Retail Energy Code to introduce the obligations, processes and provisions for the new switching arrangements, to enable the successful transition to enduring governance and operational arrangements.
- As a REC Party, I want to be clear on the obligations I need to meet and the processes I need to follow post CSS go live, to ensure my organisation is ready for the introduction of the new switching arrangements.
- As a REC Service Provider, I want to be clear on the obligations, processes and service standards that I need to meet, to ensure my organisation is ready for the introduction of the new switching arrangements.
Proposed Solution Document
Document title
REC V3.0 Baselined documents
Archive
Off
Document title
REC v3.0 Baselined documents (REC Portal)
Archive
Off
Problem Statement
Changes are required to the REC, to ensure the appropriate obligations, processes and provisions are defined within the REC at CSS go-live, enabling successful transition to enduring governance and operational arrangements developed as part of Ofgem’s Switching Programme.
Stages Selection
SME
SME Role
Lead Technical Analyst
SME User
beth.brown@capgemini.com
R0041 - Change Proposal Form
Letter from the Authority to the REC Code Manager - REC V3.0 Authority Change Proposal
R0041 - Change Proposal Plan v1.0 (Approved)
R0041 - Initial Assessment Report v2.0 (Approved)
R0041 - Final Change Report v3.0 (Post-Vote)
R0041 Authority Decision
Company Name
Ofgem
Review status
Review required