Regulatory Alliance Creation Rejections
Date of latest update
Type
Issue
ID
I0331
Change Category
Other Industry Codes impacted
Change Path
Priority
Urgent
No
Latest Update
19/08/2026 - the Change Report (Proposal Plan) was approved by Change Panel. The Change Team and Performance Assurance team are working together to determine if there are performance assurance requirements for this change.
Summary
An incident where Network Parties did not submit Regulatory Alliances on time to the Central Switching Service (CSS) Provider, or did submit the Regulatory Alliances but did not action rejections from the CSS Provider in a timely manner, led to over 200 Consumers being delayed in Switching to their chosen Energy Supplier. This Change Proposal has been raised to review this process.
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
Proposed Solution Document
Document title
I0331 Schedule 24 Switching Data Management
Archive
Off
Problem Statement
The lack of Service Level Agreements (SLAs) on Network Parties to submit Regulatory Alliances to the CSS Provider or to work any rejections received from the CSS Provider can lead to delays in Consumers being able to Switch to their chosen Energy Supplier.
Stages Selection
Stages Selection
SME
SME Role
Lead Assurance Analyst
I0331 submission form
I0331 Change Report (Proposal Plan) V1.0 approved 18.08.26
Company Name
-
Review status
Review required
Provision of Standard industrial Classification (SIC) Code to REC Parties
Date of latest update
Type
Issue
ID
I0327
Priority
Urgent
No
Latest Update
22/05/2026 - Issue accepted in by Code Manager
Summary
As part of the planning required to deliver Net Zero, Gas Distribution Networks (GDNs) are obligated to plan Industrial and Commercial (I&C) gas demand at a more granular, site-specific level. To meet this obligation, access to Standard Industrial Classification (SIC) Code data, matched to both Gas and Electricity Meter Point Reference Numbers, would provide a significantly improved understanding of I&C customers.
Impacted REC Documents
Impacted REC Services
Impacted REC Parties and Market Participants
Status
Status
Implementation Status
Date Raised
Date of Update to Priority
Solution Development
Stages Selection
Stages Selection
I0327 submission form
Company Name
-
Review status
Review required
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
Clarification and Amendments to Annulment Definition in Schedule 23 – Alignment with SLC Obligations
Date of latest update
Type
Change
ID
R0287
Change Category
Priority
Urgent
No
Latest Update
This Change Proposal has been implemented as part of the February 2026 REC Release.
Summary
The current wording of the Annulment definition in REC Schedule 23 – Registration Services does not sufficiently align with the obligations set out in Ofgem’s Electricity Supply Standard Licence Conditions (SLC) 14.2(d),14.4(c) and 14.10. This misalignment has led to inconsistent interpretations of the usage of the Annulment process across the industry compared to the intention of the REC change and the licence obligation. This Issue is seeking further amendments to REC Schedule 23 - Registration Services and clearer guidance. This clarification is essential to prevent retention-based misuse, ensure regulatory compliance, and uphold Consumer trust in the Switching process.
Alternative Change Proposals
Impacted REC Documents
Impacted REC Parties and Market Participants
Status
Status
Implementation Date
27 February 2026
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed Solution Document
Document title
I0287 Draft Legal Changes - For Consultation
Archive
Off
Problem Statement
The current wording of the Annulment definition in the REC Schedule 23 – Registration Services is insufficiently aligned with the obligations set out in Ofgem’s Electricity Supply Standard Licence Conditions (SLC). This has led to inconsistent interpretations of the usage of the Annulment process.
Stages Selection
SME
SME Role
Lead Technical Analyst
SME User
vaishnsharma@deloitte.co.uk
SME Role
Lead Assurance Analyst
I0287 submission form
R0287 and R0287A Change Report (Proposal Plan and Consultation) v1.0 approved 02.12.25
R0287 and R0287A Consolidated Consultation Responses PUBLIC
R0287 and R0287A Change Report (Final Recommendation) Post Vote 20.01.2026 v1.0
Ofgem decision to approve R0287
Company Name
-
Review status
Review required
Schedule 24 - Switching Data Management 2.0
– Implemented on
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Schedule 24 - Switching Data Management 1.4
– Implemented on
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REC Changes to tie in with DCP451 - Suspending Registrations
Date of latest update
Type
Change
ID
R0248
Change Category
Other Industry Codes impacted
Change Path
Priority
Urgent
No
Latest Update
This Change Proposal was implemented as part of the 7 November 2025 REC Release.
Summary
A DCUSA Change Proposal - DCP 451 ‘Suspending Registrations’ - has been raised to look into this issue. The solution must consider a cross-code solution, which does not put consumer outcomes at risk.
Change Plan
Change Report (Proposal Plan) approved by Change Panel
Completed
Start:
Due:
Completion:
17 Jun 2025Change approved
Completed
Start:
Due:
Completion:
05 Aug 2025Impacted REC Documents
Impacted REC Parties and Market Participants
Status
Implementation Date
07 November 2025
| Included changes | Affected REC Items | |
|---|---|---|
| R0003 | Market-wide Half-Hourly Settlement Implementation |
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed Solution Document
Document title
I0248 Switching Data Management draft
Archive
Off
Problem Statement
A lack of clarity on the process for when a DNO ends a Regulatory Alliance with an Energy Supplier can cause confusion with the Energy industry, and lead to poor Consumer outcomes if the correct process is not followed.
Stages Selection
SME
SME Role
Lead Assurance Analyst
SME User
vaishnsharma@deloitte.co.uk
Issue proposal form
I0248 Change Report (Proposal Plan) V1.0
R0248 Change Report (For Consultation) v1.0
R0248 Consolidated Consultation Responses V1.0
R0248 Change Report (Final Recommendation) V1.0 - approved 05.08.25
Company Name
-
Review status
Review required
Agile Reporting within CSS
Date of latest update
Type
Change
ID
R0224
Change Path
Priority
Urgent
No
Latest Update
18/03/2026 - An update to plan has been published for consideration at the Technical Expert Panel on 25 March 26.
Summary
As part of the impact assessment process for R0115, it was identified that it is very costly and time consuming to make reporting changes within the CSS architecture. As such, we would like to explore enabling agile reporting within the CSS ecosystem, by creating a functionality that consolidates all necessary data into a single, centralised database.
Impacted REC Documents
Impacted REC Services
Impacted REC Parties and Market Participants
Status
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Problem Statement
Current CSS arrangements mean that REC Changes designed to facilitate access to CSS data are more onerous that they need to be. Current arrangements are costly and have relatively long lead-times. This Issue seeks to explore changing the way that the CSS data can be accessed.
Stages Selection
SME
SME Role
Lead Technical Analyst
SME User
maxime.van-eyseren@capgemini.com
SME Role
Lead Assurance Analyst
SME User
vaishnsharma@deloitte.co.uk
Proposal Form - Agile reporting within CSS
I0224 Change Report (Plan) (Approved) V1.0 21.01.25
Change Proposal Re-Plan Approved
Solution/Business Case report
R0224 update to plan 18.03.26
R0224 update to plan 19 May 2026
Company Name
-
Review status
Review required
Schedule 24 - Switching Data Management 1.3
– Implemented on
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