Clarification and Amendments to Annulment Definition in Schedule 23 – Alignment with SLC Obligations (Alternate)
Date of latest update
Type
Change
ID
R0287A
Change Category
Priority
Urgent
No
Latest Update
20/02/2026 The Authority has published their decision to reject R0287A and approve the R0287, in line with the Code Manager and the Change Panel's recommendation. The Authority's decision has been published below.
Summary
Inconsistent interpretations of the Annulment definition in Schedule 23 are leading to disputes between suppliers. We are, therefore, seeking to further clarify the use of annulments to ensure that the customer is placed firmly at the heart of this process.
Original CP
Status
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed Solution Document
Document title
R0287A 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 Role
Lead Assurance Analyst
R0287A 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 reject R0287A
Company Name
-
Review status
Review required
Obligate Energy Suppliers to provide photo evidence of Theft in Conveyance to Network Parties
Date of latest update
Type
Change
ID
R0292
Change Category
Change Path
Priority
Urgent
No
Latest Update
20/08/2026 - the consultation open, responses must be received by 23:59 14 September 2026.
Summary
This Issue seeks to introduce an additional clause for Suppliers that have attended Sites with suspected or actual Energy Theft in Conveyance to share and store evidence of the tampering to be made available to Network Parties upon request.
Status
Implementation Date
27 February 2027
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed Solution Document
Document title
I0292 Schedule 8 draft V0.1
Archive
Off
Document title
I0292 Schedule 8 draft V0.2
Archive
Off
Problem Statement
There are cases where Energy Suppliers (or its Revenue Protection Agent) have provided the Network Parties with minimal information and no photos following Site visits for Theft in Conveyance, which results in additional time for Energy Theft Desktop Investigations and additional costs where jobs are raised for attendance that aren’t always needed.
Stages Selection
SME
SME Role
Lead Technical Analyst
SME Role
Lead Assurance Analyst
I0292 submission form
I0292 Change Report (Proposal Plan) V1.0
I0292 Consolidated Information Request Responses V1.0
I0292 Update to Plan V1.0 approved 21.07.26
I0292 Consolidated Impact Assessment Responses PUBLIC v1.0
R0292 Change Report (For Consultation) V1.0 approved 18.08.26
Company Name
-
Review status
Review required
Review of Schedule 1 Interpretations and Definitions
Date of latest update
Type
Change
ID
R0291
Change Category
Change Path
Priority
Urgent
No
Latest Update
This Change Proposal has been implemented as part of the June 2026 REC Release.
Summary
During the quality checks of REC Schedules for MHHS, several capitalised terms throughout schedules were identified with no entry in Schedule 1. It has also been identified that there are definitions that link to Schedules (such as 2, 20 and 21) which are no longer live REC Schedules. The Code Manager has reviewed these and determined some changes are required to Schedule 1.
Impacted REC Documents
Impacted REC Parties and Market Participants
Status
Status
Implementation Date
26 June 2026
| Included changes | Affected REC Items | |
|---|---|---|
| R0103 | Central provision of DCC Technical Contacts for requesting test certificates |
|
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed Solution Document
Document title
R0291 REC Main Body draft V0.1
Archive
Off
Document title
R0291 Schedule 1 draft V0.1
Archive
Off
Document title
R0291 Schedule 25 (CSS) draft V0.1
Archive
Off
Document title
R0291 Schedule 1 draft V0.2
Archive
Off
Document title
R0291 REC Main Body draft V0.1
Archive
Off
Document title
R0291 Schedule 25 (CSS) draft V0.1
Archive
Off
Problem Statement
Without clear definitions of all defined terms within the REC, there may be confusion for REC Parties and other industry participants who use REC documents.
Stages Selection
I0291 submission form
I0291 Change Report (Proposal Plan) V1.0
R0291 Change Report (For Consultation) V1.0
R0291 Consolidated Consultation Responses v1.0
R0291 Change Report (Final Recommendation) V1.1 approved 21.04.26
Company Name
-
Review status
Review required
Legacy Data Item API Service
Date of latest update
Type
Change
ID
R0290
Change Category
Change Path
Priority
Urgent
No
Latest Update
02/06/2026 - the REC Change Panel voted to reject the implementation of this Change Proposal, in line with the Code Manager recommendation. The appeal window closed on 17 June 2026.
Summary
MHHS removes certain Data Items (e.g. Profile Class, Measurement Class, Standard Settlement Configuration, Time Pattern Regime etc.) that are important to wider processes and products offered to consumers. This proposal is seeking a mechanism for electricity Market Participants to look up the previous entries for these legacy Data Items held before MHHS Migration begins.
Impacted REC Documents
Impacted REC Services
Impacted REC Parties and Market Participants
Status
Implementation Date
26 June 2026
| Included changes | Affected REC Items | |
|---|---|---|
| R0103 | Central provision of DCC Technical Contacts for requesting test certificates |
|
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed Solution Document
Document title
R0290 New Schedule Legacy Data Item API V0.4
Archive
Off
Document title
R0290 Schedule 1 Defined Terms V0.2
Archive
Off
Document title
R0290 Schedule 9 Qualification and Maintenance v0.1
Archive
Off
Problem Statement
The risk of loss of certain Data Items for MHHS Migrated Metering Points may impact Parties in their ability to carry out and support industry processes, or in what products they are able to offer Consumers, in both the MHHS Market and following a Reverse Migration.
Stages Selection
SME
SME Role
Lead Technical Analyst
I0290 submission form
I0290 Change Report (Proposal Plan) V1.0
I0290 Extension to Plan V1.0 approved 27.03.26
I0290 Extension to Plan V2.0 approved 27.04.26
R0290 Change Report (For Consultation) v1.0
R0290 Consolidated Consultation Responses V1.0
Energy Consultants Association - letter on Change Report (Final Recommendation)
R0290 Change Report (Final Recommendation) v1.1 post vote 02.06.2026
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
Clarification on Detailed Impact Assessment Activities
Date of latest update
Type
Change
ID
R0286
Change Category
Change Path
Priority
Urgent
No
Latest Update
This Change Proposal has been implemented as part of the June 2026 REC Release.
Summary
The first complex technical change R0067 (Introduction of CSS Refresh Functionality) encountered a number of challenges within the design and implementation process, the change was scheduled for implementation on the 6th December 2023, however, the change was deployed with defects and was not fully operational until February 2024. Following that session, the Code Manager held discussions, and a formal Lessons Learned session with all Service Providers and identified a number of challenges with the technical change process. Some of these challenges can be attributed to the timing of the detailed design, Detailed Impact Assessments (DIA) and party impact assessments
Status
Status
Implementation Date
26 June 2026
| Included changes | Affected REC Items | |
|---|---|---|
| R0103 | Central provision of DCC Technical Contacts for requesting test certificates |
|
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed solution summary
- An update to the REC Schedule 5 - Change Management.
Proposed Solution Document
Document title
R0286 Proposed legal text v1.1
Archive
Off
Problem Statement
The technical change process currently creates five challenges which can be attributed to the timing of the detailed design, PIA and DIAs. These are as follows: Lack of Clarity, Limited Feedback, Misalignment, High Contingency Costs and Inaccurate Timelines.
Stages Selection
SME
SME Role
Lead Technical Analyst
SME Role
Lead Assurance Analyst
Change Management v3.5 RedLine for IA Clarifications
I0286 submission form
R0286_Consolidated Consultation responses V1.0
Company Name
-
Review status
Review required
Updates to Schedule 14 Measurement Transformers Commissioning Timescales
Date of latest update
Type
Change
ID
R0284
Change Category
Other Industry Codes impacted
Change Path
Priority
Urgent
No
Latest Update
12/08/2026 - the Metering Expert Panel approved the Change Report (Final Recommendation) V1.2. This Change Proposal will be implemented on 26 June 2027. If you wish to appeal this decision, this must be received by COB 28 August 2026.
Summary
The current timetables in REC Schedule 14 Metering Operations sections 15.6 and 30.6, where an Electricity Metering Asset requires commissioning in accordance with BSC Metering CoP 4 and the Measurement Transformers are owned by the DNO, or in 15.7 and 30.7 where the Measurement Transformers are not owned by the DNO, may no longer be fit for purpose post the implementation of MHHS Milestone M16, where the Settlement timetable reduces the RF run to 4 months.
Impacted REC Documents
Impacted REC Parties and Market Participants
Status
Status
Implementation Date
25 June 2027
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed Solution Document
Document title
I0284 Schedule 14 Metering Operations draft V0.2
Archive
Off
Document title
R0284 Schedule 14 Metering Operations draft V0.3
Archive
Off
Document title
R0284 Schedule 14 Metering Operations final version
Archive
Off
Problem Statement
The current timetables in REC Schedule 14 Metering Operations sections 15.6 and 30.6, where an Electricity Metering Asset requires commissioning in accordance with BSC Metering CoP 4 and the Measurement Transformers are owned by the DNO, or in 15.7 and 30.7 where the Measurement Transformers are not owned by the DNO, may no longer be fit for purpose post the implementation of MHHS Milestone M16, where the Settlement timetable reduces the RF run to 4 months.
Stages Selection
I0284 submission form
I0284 Change Report (Proposal Plan) V1.0 approved 03.02.26
I0284 Change Issue Group paper v1.0
I0284 Consolidated Impact Assessment Responses PUBLIC v1.0
R0284 Change Report (For Consultation) V1.0 approved 08.04.26
R0284 Consolidated Consultation Responses PUBLIC v1.0
R0284 Change Report (Final Recommendation) V1.2 approved 12.08.26
Company Name
-
Review status
Review required
Annual Address Management Plan Updates
Date of latest update
Type
Change
ID
R0283
Change Category
Change Path
Priority
Urgent
No
Latest Update
This Change Proposal has been implemented as part of the February 2026 REC Release.
Summary
Address management is the responsibility of DCC, with support from REC Parties. 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.
Change Plan
Proposal Plan approved at Change Panel
Completed
Start:
Due:
Completion:
21 Oct 2025Impacted REC Documents
Impacted REC Services
Impacted REC Parties and Market Participants
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
R0283 Legal Text For Consultation
Archive
Off
Problem Statement
The REC Address Management Service is the responsibility of DCC, with support from REC Parties. 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
SME
SME Role
Lead Assurance Analyst
SME User
amoden@deloitte.co.uk
R0283 submission form
R0283 Change Report (Proposal Plan) v1.0 approved 21/10/2025
R0283 Change Report (For Consultation) v1.0
R0283 Consolidated Consultation Responses v1.0
R0283 - Change Report (Final Recommendation) Approved 16.12.25 v1.0
Company Name
-
Review status
Review required
Extending R0067 Refresh Functionality
Date of latest update
Type
Issue
ID
I0281
Change Category
Change Path
Priority
Urgent
No
Latest Update
03/07/2026 - The Service Provider Impact Assessment is ongoing and expected to be completed by 07 August 2026.
Summary
CSS Market Messages sent by the Central Switching Service (CSS) to Switching Data Service Providers (SDSPs) are either not being received, being received after Gate Closure, or are being received out of the order that they were originally sent in. This Issue originally aimed to extend the Refresh functionality, implemented for the Gas Retail Data Agent (GRDA).to the Electricity Retail Data Agent (ERDA). Following solution development for I0281, it was agreed that the Refresh functionality would be made available for all Market Participants in receipt of the in-scope messages.
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
CSS messages are not received by the SDSPs in the order in which they were originally sent, or after Gate Closure, so it can be difficult to detect and often requires significant manual effort to resolve. This issue can directly impact Consumer switching experiences, causing disruption and possible delays in a switch.
Stages Selection
Stages Selection
SME
SME Role
Lead Technical Analyst
SME User
maxime.van-eyseren@capgemini.com
SME Role
Lead Assurance Analyst
SME User
amoden@deloitte.co.uk
I0281_Change Report (Update to Plan) v1.0 (Pre-approval)
I0281_Change Report (Update to Plan) v1.0 Approved 20.05.2026
Company Name
-
Review status
Review required
Housekeeping November 2025
Date of latest update
Type
Change
ID
R0279
Change Category
Change Path
Priority
Urgent
No
Latest Update
This Change Proposal was implemented as part of the 7 November 2025 REC Release.
Summary
The Code Manager has identified a number of non-material clarifications, typographical errors and changes needed to REC products.
Change Plan
Approved at Change Panel
Completed
Start:
Due:
Completion:
21 Oct 2025Status
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
Problem Statement
This Housekeeping Change Proposal seeks to make typographical and formatting corrections that have been identified and improve consistency across the REC.
Stages Selection
November 2025 Housekeeping summary spreadsheet V1.0
November Housekeeping legal text (zip file) V1.0
R0279 Housekeeping Change Report V1.0 approved 21.10.25
Company Name
-
Review status
Review required