ESME ID Update Rejections
Date of latest update
Type
Change
ID
R0222
Change Path
Priority
Urgent
No
Latest Update
22/09/25 - This Change Proposal has been implemented as part of the MHHS M8 22 September 2025 REC Release.
Summary
The Electricity Smart Meter Equipment (ESME) ID is a unique identifier that provides a designation for a Smart Meter. Electricity Retail Data Agent (ERDA) systems were updated as per the requirements in R0033 to not allow for multiple incidences of an individual ESME ID to be registered, and reject the update, even when a second incidence of an ESME ID would be legitimate, for example in the case of a re-use of Metering Asset or a crossed meter. This Issue seeks to resolve this feature of the ESME ID validation while maintain data accuracy.
Impacted Consumers
Status
Implementation Date
MHHS Programme Milestone M8 (Code changes delivered)
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed Solution Document
Document title
R0222 Data Spec DI51544 V1.0
Archive
Off
Problem Statement
ERDA data validation on the ESME ID Data Item in the D0312(MM00256) Market Message is imperfect, and can result in invalid rejections. This occurs when more than one incidence of an ESME ID is passed through individual ERDA system, as it only allows for a single occurrence, even if historic ones have been end-dated. In situations where a Metering Asset has been re-used, thus re-using the ESME ID, a rejection will occur, in an example of an unintended functionality of the validation system.
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
Issue Proposal Form
I0222 Change Report (Plan) (Approved) V1.0 04.02.25
I0222 Change Report (IA) (Pre-Approval) V1.0 23.04.25
R0222 Change Report (Consultation) V1.0 01.05.25
R0222 Consolidated Consultation Responses V1.0
R0222 Change Report (Post-Vote) V1.0 25.06.25
Company Name
REC Code Manager
Review status
Review required
Housekeeping Change for R0206
Date of latest update
Type
Change
ID
R0220
Change Path
Urgent
No
Latest Update
08/11/2024 - This Change Proposal has been implemented as part of the November 2024 REC Release.
Summary
This is a Housekeeping Change Proposal subject to the Housekeeping Change Proposal process, rather than the standard Change Process. The nature of the change is that it makes non-material changes to the REC Products to correct typographical, grammatical or consistency errors, and provides an opportunity to introduce necessary clarifications. This change proposal is looking to fix an error identified with R0206 Cross code change to align with BSC CP1598. BSC CP1598 was raised to add six scenario variants to four Market Messages that have been identified as missing. The REC Energy Market Data Specification contains a number of Market Message scenario variants used in BSC processes. This REC Change Proposal has been raised to align with CP1598 and ensure these scenario variants are added to the REC Data Specification. The legal text for R0206 approved at Change Panel on 15 October 2024, had a change to one of the scenario variants (SV00474) that was not clear as it was not red lined. The change was to the owner of the scenario variant from the Retail Energy Code Company (RECCo) to the Balancing and Settlement Code Company (BSCCo). The red lining for SVcccc was also incorrect as it deleted RECCo as the owner when in fact it is a new scenario variant so no previous owner. The owner as BSCCo that was approved, is correct.
Impacted Consumers
Status
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed Solution Document
Document title
R220_R0206 HK Solution Document v1.0.pdf
Archive
Off
Stages Selection
R0220 - Housekeeping Change Report
Company Name
-
Review status
Review required
Proposal to Enable Broader Use of Retail Energy Location (REL) Data for Non-Switching Applications
Date of latest update
Type
Issue
ID
I0218
Change Category
Change Path
Priority
Urgent
No
Latest Update
04/08/2026 - On 04 August 2026, the REC Change Panel approved the extension to plan for I0218. Service Provider Impact Assessments are in progress.
Summary
The problem being addressed is the current restriction within the Retail Energy Code (REC) that limits the use of Retail Energy Location (REL) data solely to switching purposes. This restriction prevents the full utilisation of REL data, which could be valuable for a broader range of operational, regulatory, and industry applications. Key Issues: - Currently, REL data, enriched with Unique Property Reference Numbers (UPRNs), is available via the Electricity and Gas Enquiry Services. However, Schedule 29 (Address Management) of the REC restricts its use to switching purposes only, preventing its use in other important industry initiatives. - Various industry stakeholders, including REC and non-REC data requestors as well as Ofgem (the regulator), have expressed a strong interest in utilising REL data for non-switching purposes. The restriction is seen as a limitation, especially for initiatives that require accurate property data to support wider operational and regulatory functions. - By restricting the use of REL data to switching, stakeholders are unable to fully leverage it for improving operational efficiency, regulatory compliance, and overall service delivery. Lifting this restriction would enable the wider use of REL data, allowing stakeholders to benefit from its full potential across various non-switching applications.
Change Plan
Proposal plan approved at Change Panel
Completed
Start:
Due:
Completion:
21 Jan 2025Extension to Proposal Plan approved by REC Change Panel
Completed
Start:
Due:
Completion:
06 May 2025Impacted Consumers
Impacted REC Documents
Impacted REC Services
Status
Status
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed solution summary
- RECCo would acquire a AddressBase Core license from Ordinance Survey and the REC would be updated to allow parties to take full advantage of this data. In order for parties to use the REL data, they would need to acquire an AddressBase Premium license from Ordinance Survey or other relevant license.
Problem Statement
Retail Energy Location (REL) data currently is not permitted for uses such as improving customer service and streamlining internal processes. This means that stakeholders, such as Ofgem and data requestors, have been unable to benefit from this data and Consumers are therefore unable to benefit from the full potential use of their data.
Stages Selection
Stages Selection
SME
SME Role
Lead Technical Analyst
SME User
rosalind.timperley
SME Role
Lead Assurance Analyst
SME User
amoden@deloitte.co.uk
Issue proposal form
I0218 - Change Report (Proposal Plan) V2.0 (07.05.2025)
I0218 - Extension to Plan V1.0 (06.05.2025) (Approved)
I0218 - Update to Plan V2.0 (09.09.2025) (Approved)
I0218 - Update to Plan V3.0 (18.11.2025) Approved
I0218 Extension to Plan V1.0 Pre-Approval
I0218 - Extension to Plan V2.0 (04.08.2026) Approved
Company Name
RECCo
Review status
Review required
Multiple Switch Requests Increasing Objection Rate
Date of latest update
Type
Issue
ID
I0214
Change Category
Change Path
Priority
Urgent
No
Latest Update
20/05/2025 - the Code Manager has withdrawn this Issue, as there are no adequate solution options and minimal Consumer detriment. The adoption window has closed.
Summary
REC Parties have told the Code Manager that they are seeing multiple registrations attempts (10 plus attempts on consecutive days in some instances) on individual MPxNs. They are concerned about Consumer detriment as those trying to switch are not getting time to review objection related communications from their current Supplier to allow them to act and resolve the issue. This was initially presented as a non-domestic issue, but initial Code Manager investigations have also highlighted potential concern around proposed domestic transfers as well. There is also a risk of Party Performance impacts with initial analysis flagging potential impacts on Performance Assurance Risk Drivers, 8.9, 8.10 & 8.11.
Change Plan
Presented at Change Issues Group
Completed
Start:
Due:
Completion:
06 Mar 2025Impacted Consumers
Impacted REC Documents
Status
Status
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Problem Statement
Non-Domestic Consumers are having their Switch experience affected by multiple Objection attempts following a single initial attempt to register for their supply by a prospective gaining Supplier. This results in Consumer detriment, as multiple Objections result in repeated rounds of communications to the Supplier. This results from automated Registration systems employed by Non-Domestic Suppliers.
Stages Selection
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
Change Issue Proposal Form
I0214 Change Report (Plan) (Approved) V1.0 17.12.24
I0214 Rebaselined Plan v1.0 Approved 28.03.25
Company Name
Code Manager
Review status
Review required
Introducing Third Party Intermediary (energy broker) assurance and accreditation (Alternate)
Date of latest update
Type
Change
ID
R0137A
Change Category
Urgent
No
Latest Update
16/05/2025 - the Authority have published their decision to reject R0137 and R0137A.
Summary
This change seeks to expand the obligation for Energy Suppliers to only work with TPIs who are adhering to principles as set out in the REC TPI Code of Practice to all Non-Domestic Consumers. It also looks to reduce the burden on Energy Suppliers having to perform their own audits by introducing a REC Services Accreditation Scheme and allowing companies to qualify as an Industry-Recognised Accreditation Body.
Impacted Consumers
Impacted REC Documents
Impacted REC Parties and Market Participants
Status
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed Solution Document
Document title
Legal Text R0137A Consultation
Archive
Off
Document title
Legal Text for R0137A - Final
Archive
Off
Problem Statement
Non-Domestic Consumers have more limited protections than Domestic and Microbusiness Consumers in the energy market, and so may not always experience best practice from all parties they interact with. The aim is to expand these protections while limiting the audit burdens on Suppliers and TPIs.
Stages Selection
SME
SME Role
Lead Assurance Analyst
SME User
amoden@deloitte.co.uk
R0137A Change Proposal Form
Authority decision on REC modification proposal R0137 and R0137A
Company Name
REC Code Manager
Review status
Review required
Creation of a Mechanism to Allow Third Parties to Report Objection Activity
Date of latest update
Type
Issue
ID
I0213
Change Category
Change Path
Priority
Urgent
No
Latest Update
15/07/2025 - The Code Manager has rejected Issue I0213. This Issue has been deemed out of scope of the REC and has been rejected following a legal review. This decision was ratified by the REC Change Panel at their meeting on 15 July 2025.
Summary
Presently only industry parties can raise the matter of non-compliant or unwarranted objections activity that a supplier may be participating in. This Issues has been raised to request RECCo to consider accepting notice and evidence (that can be acted upon) from qualifying 'non industry' parties, from third party consultants and brokers.
Change Plan
Proposal Plan Approved at REC Change Panel
Completed
Start:
Due:
Completion:
06 May 2025Impacted Consumers
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
Proposed solution summary
- I0213 has been raised with a suggestion that the Code Manager should consider accepting notice and evidence from qualifying non-industry Parties, including Third Party consultants and brokers (Third Party Intermediaries (TPIs)). A possible solution for this may include a new submission page, or form, on the REC Portal, that would allow Third Parties to submit evidence of non-compliant Objection activity.
Problem Statement
There is currently not a method for Third Parties, who may be involved in the Switching process, to report non-compliant Objection activity. Non-Compliant Objection activity can result in time consuming procedures for Consumers, creating unnecessary engagement with Energy Suppliers, and may result in a financial burden.
Stages Selection
Stages Selection
I0213 - Change Proposal Form
I0213 - Change Report (Proposal Plan) 25.04.2025 (Approved)
I0213 - Solution Development Report (for Party impact assessment) V1.0 (16.05.2025)
I0213 Consolidated Impact Assessment Responses V1.0 (Non-Confidential) 07.07.2025
Company Name
Energy Consultants Association
Review status
Review required
Import / Export MOA Charging Clarification
Date of latest update
Type
Change
ID
R0207
Change Category
Priority
Urgent
No
Latest Update
On 07 August 2026, Ofgem approved this Change Proposal, in line with the recommendation made by the Code Manager and the Metering Expert Panel. R0207 will be implemented on 06 November 2026. Ofgem's decision can be found here: https://www.ofgem.gov.uk/publications/r0207-retail-energy-code-rec-proposed-changes
Summary
BSC Mod 459 and REC CP R0144 were raised to allow different MOAs to be appointed for the import and export MPANs on a shared meter. One of the justifications for this was to stop export suppliers being charged inflated rates. Both changes have been placed on hold due to the MHHS Programme so this change has been raised to specifically resolve the charging issue.
Change Plan
Final recommendation to Metering Expert Panel
Completed
Start:
Due:
Completion:
12 Mar 2025Sent to Authority for determination
Completed
Start:
Due:
Completion:
13 Mar 2025Impacted Consumers
Impacted REC Documents
Status
Implementation Date
06 November 2026
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed Solution Document
Document title
Schedule 14 - Metering Operations R0207 v0.1
Archive
Off
Document title
Schedule 14 - Metering Operations R0207 v0.2
Archive
Off
Problem Statement
Where the same electricity Metering Asset is being used for the measurement of Import and Export for more than one Metering Point, the Export MOA must be the same as the Import MOA. This may result in uncompetitive charging by the MOA, as the Export Supplier has no choice in their appointment.
Stages Selection
Workgroup
Workgroup(s)
Change Proposal Form
R0207 - Change Report (Proposal Plan - Approved) V2.0 15.10.2024
R0207 Consolidated Impact Assessment Responses PUBLIC V1.0
R0207 Extension to Plan v1.0
R0207 Change Report (For Consultation) v1.0
R0207 Consolidated Consultation Responses PUBLIC V1.0
R0207 Change Report (Final Recommendation) V1.0 Post Vote
Authority Decision Letter - Ofgem Decision to Send Back R0207 (30.05.2025)
R0207 Revised Solution - Legal Text
R0207 Change Report (Impact Assessment) Revised Solution V2.0
Legal Drafting Revised Solution March 2026
Non Confidential consolidated impact assessment responses
R0207 Consolidated Consultation Responses (revised solution)
Authority decision to approve R0207
Company Name
Gemserv
Review status
Review required
Provision of Half-Hourly Consumption Data for Advanced Meter Erroneous Switches
Date of latest update
Type
Change
ID
R0205
Change Category
Change Path
Priority
Urgent
No
Latest Update
This Change Proposal was implemented as part of the 7 November 2025 REC Release.
Summary
As part of the MHHS REC code change activity, a change has been made to REC Schedule 30 to remove the half hourly meter exemption from the Erroneous Transfer provisions. Whilst this is necessary from an MHHS perspective with all sites becoming half hourly settled, the application of ET obligations in the Advanced Meter segment creates some additional challenges. To be able to accurately bill an Advanced Meter site, following repatriation of that customer to their correct supplier after an ET has been raised / agreed, the supplier needs to have access to half hourly consumption data for the ET period when they were not the registered supplier. With ETs potentially taking up to 2 years to be identified and resolved, the only place that the supplier could reliably source that HH consumption data would be from the other (losing) supplier.
Change Plan
Change Proposal Plan to REC Change Panel
Provision of Half-Hourly Consumption Data for Advanced Meter Erroneous Switches > Change Plan
Start:
22 Aug 2024Due:
01 Apr 2025Completion:
01 Apr 2025Discussion at REC Change Issues Group
Provision of Half-Hourly Consumption Data for Advanced Meter Erroneous Switches > Change Plan
Start:
01 Apr 2025Due:
05 Jun 2025Completion:
Impacted Consumers
Impacted REC Documents
Impacted REC Services
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 summary
- An approval of this Issue/Change Proposal would see an obligation placed upon the Losing Supplier, following a successful Erroneous Switch repatriation, to provide the Gaining Supplier with the Half-Hourly consumption data for the period in which they were erroneously supplying the meter.
- Half-Hourly consumption data would be providing to the Gaining Supplier, from the Losing Supplier, via SDEP using an Excel template within 5 Working Days of the Erroneous Switch repatriation switch date. The Gaining Supplier would be required to provide 48 Half-Hourly consumption intervals for each that the the Consumer was supplied by the erroneously Gaining Supplier.
Proposed Solution Document
Document title
I0205 - Draft Legal Text (Schedule 30) - for Party Impact Assessment 10.06.2025
Archive
Off
Document title
I0205 - Draft Reporting Templates
Archive
Off
Document title
I0205 - Impact Assessment
Archive
Off
Document title
R0205 - Schedule 30 Legal Drafting 15.08.2025
Archive
Off
Document title
R0205 - Advanced Meter Half-Hourly Consumption Data Sharing Template
Archive
Off
Problem Statement
In the absence of having Half-Hourly consumption data for Erroneously Switched Consumers, Energy Suppliers are currently required to estimate consumption for billing purposes that can lead to inaccurate billing.
Stages Selection
I01205 - Change Proposal Form
I0205 - Change Report (Proposal Plan) V1.0 Approved (01.04.2025)
I0205 Consolidated Impact Assessment Responses V1.0 (Non-Confidential) 30.07.2025
R0205 - Consolidated Consultation Responses (09.09.2025)
R0205 Change Report (Final Recommendation) V2.0 (Approved) 16.09.2025
Company Name
Centrica
Review status
Review required
Sequence order of CSS00200 message
Date of latest update
Type
Issue
ID
I0204
Urgent
No
Latest Update
08/11/2024 - The Proposer has withdrawn this issue as it is being progressed under MHHS CR056. The adoption window has now closed. * This is Issue relates to the Market-wide Half Hourly Settlement design.
Summary
Empty
Impacted Consumers
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
Company Name
St.Clements
Review status
Review required
Review of the REC's Address Management Service
Date of latest update
Type
Issue
ID
I0200
Change Category
Change Path
Priority
Urgent
No
Latest Update
13/05/2026 - The REC Code Manager is establishing a new REC working group to support the progression of I0200 – Review of the REC’s Address Management Service. If you would like to attend the I0200 Working Group, please register your interest by contacting the Code Manager at change.management@recmanager.co.uk. The first meeting will take place in June 2026, with the exact date and time to be confirmed in due course and communicated via the REC Change Bulletin and via email to all those who register their interest.
Summary
Having the incorrect address can lead to a range of Consumer issues, including switching, billing and meter reading problems. The Meter Point Location (MPL) and Retail Energy Location (REL) have been added to the Code to resolve this issue. Whilst there had been progress resolving address data issues, there is not currently a mechanism to establish Code level targets for address improvement, resulting in around 2.8 million unmatched addresses.
Impacted Consumers
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
There has been progress resolving address data issues, but there is no mechanism to clearly establish Code level targets for address improvement, or overall market performance.
Stages Selection
Stages Selection
SME
SME Role
Lead Assurance Analyst
SME User
amoden@deloitte.co.uk
I0200 - Improving Address Management Targets (Issue Form)
I0200 - Change Issues Group paper
I0200 - Change Report (Proposal Plan) V1.1 (Approved) 18.02.2025
I0200 - Update to Plan (Pre Approval) 14.04.2026
Company Name
REC Code Manager
Review status
Review required