Creation of a Tool to Manually Correct ERDS / CSS Discrepancies
Date of latest update
Type
Change
ID
R0201
Change Category
Change Path
Priority
Urgent
No
Latest Update
This Change Proposal was implemented on 27 March 2026.
Summary
There is currently a tool utilised by DNOs to manually correct registration data to align the Registered Supplier in ERDS with the data held in CSS. The Market-Wide Half Hourly Settlement (MHHS) Design does not allow for retrospective amendment of Supplier Registration i.e. there is no equivalent tool for manual correction post MHHS go live (M10). Therefore, post MHHS implementation, any issues which prevent CSS data being reflected in ERDS cannot be corrected. This will prevent the Supplier from appointing agents and will lead to errors in settlement data under the BSC. A change is required to address this.
Change Plan
Change Issue Group
Completed
Start:
01 Aug 2024Due:
01 Aug 2024Completion:
01 Aug 2024Proposal Plan Approval
Completed
Start:
01 Aug 2024Due:
03 Sep 2024Completion:
03 Sep 2024Status
Implementation Date
27 March 2026
| Included changes | Affected REC Items | |
|---|---|---|
| R0100 | Update to Error Handling Documents |
Documents
| Name | Version | Last updated | Actions |
|---|---|---|---|
| 1.0 | 23 Jun 2026 |
|
|
| 1.0 | 08 Jun 2026 |
|
Download
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Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed Solution Document
Document title
Indicative PARC extract for R0201
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Document title
Solution Development Report published for Impact Assessment
Archive
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Document title
Legal Text published for Impact Assessment
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Document title
R0201 - Solution Development Report 270824
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Problem Statement
There are instances where ERDS (and SMRS under BSC governance) can be misaligned with the CSS and under the MHHS arrangements there is no mechanism for manual correction which there is in place today. From MHHS go live the Supplier will not be able to appoint their preferred agents. This issue only applies to MHHS Migrated Metering Points as the existing mechanism for manually correcting data would be used if the issue related to a non-migrated Metering Point. In the event that the Supplier cannot appoint its agents, this may prevent the Supplier from accurately billing the Consumer. The potential impact will increase as MHHS Migration continues, with more MHHS Metering Points potentially impacted by any CSS / ERDS discrepancy.
Stages Selection
SME
SME Role
Lead Technical Analyst
SME Role
Lead Assurance Analyst
SME User
vaishnsharma@deloitte.co.uk
CP Form - CSS ERDS Discrepancy
R0201 Change Proposal Re-Plan V2.0 Approved
Change Proposal Re-Plan V3.0 Approved
Change Report for Impact Assessment
RECCo Overview Slides - CSS and ERDS Discrepancies
R0201 Change Report Proposal Plan V2.0 (Approved) 03.09.2024
R0201 - Change Proposal Re-Plan v1.0 (Approved) 15.10.2024
R0201 Consolidated Impact Assessment Responses (Public)
R0201 Change Report (Consultation) v1.0 12.08.2025
R0201 Consolidated Consultation Responses V1.0
R0201 Change Proposal Re-plan V4.0
Company Name
-
Review status
Review required
CSS Change to Allow Prevent of Registration by Market Segment
Date of latest update
Type
Issue
ID
I0194
Change Category
Change Path
Priority
Urgent
No
Latest Update
06/05/2025 - Code Manager presented solution development outcomes to Technical Change Panel on 30/04/2025 and confirmed that the issue has been resolved and will not be progressed further. An operational process will be put in place for the monitoring of Registrations by Market Segment.
Summary
To prevent a Supplier with exemptions in place that were approved, in BSC and REC PAB for Smart and Unmetered, from registering meter points other than those that they are Qualified in.
Change Plan
Change Proposal Plan approved
Completed
Start:
25 Jul 2024Due:
03 Dec 2024Completion:
03 Dec 2024Definition
In Progress
Start:
03 Dec 2024Due:
28 Feb 2025Completion:
Status
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed Solution Document
Document title
I0194 - Solution Report v1.0 23.04.2025
Archive
Off
Problem Statement
Suppliers who do not operate, or intend to operate, in the Smart or Unmetered Market Segments, will be seeking exemptions from the relevant MHHS Qualification requirements. At present, there is no mechanism in CSS to prevent Suppliers from registering Metering Points for which an exemption has been granted and for which they are therefore not qualified.
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
PAB281_01A_Modification Proposal Form.docx
I0194 - CSS Change to Allow Prevent of Registration by Market Segment.docx
PAB281_01_Request for Exemption from Suppliers v2.0.docx
352_04_Initial Written Assessment - v1.0.docx
I0194 Proposal Plan Change Report V2.0 (Approved) 03.12.2024.pdf
I0194 - Change Proposal Re-Plan v1.0 (Approved) 27.02.2025
Company Name
-
Review status
Review required
Add Enumeration Values to the DI51035 - Communications Provider Data Item
Date of latest update
Type
Change
ID
R0193
Change Category
Change Path
Priority
Urgent
No
Latest Update
This Change Proposal has been implemented as part of the REC Release on 27 June 2025.
Summary
As the valid list of Communications Providers is being removed from MDD, Elexon have raised a change to propose this list is added to the DI51035 - Communications Provider Data Item.
Status
Implementation Date
27 June 2025
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed Solution Document
Document title
I0193 Solution Document v1.0
Archive
Off
Problem Statement
For the industry to maintain an ongoing list of valid Communications Providers after it is removed from MDD, Enumeration Values will be added to the Communication Provider Data Item (DI51035).
Stages Selection
SME
SME Role
Lead Assurance Analyst
I0193 - Add Enumeration Values to the DI51035 - Communications Provider Data Item
I0193 Change Report (Proposal Plan) V2.0 (Approved) 17.09.2024
I0193 Consolidated Impact Assessment Responses PUBLIC V1.0
R0193 Change Report (For Consultation) V1.0
R0193 Consolidated Consultation Responses v1.0
R0193 Change Report (Final Recommendation) Post Approval V1.0
Company Name
-
Review status
Review required
Introduction of SLA for Supplier De-Registration on Disconnected Meters
Date of latest update
Type
Change
ID
R0191
Change Category
Change Path
Priority
Urgent
No
Latest Update
This Change Proposal was implemented as part of the 7 November 2025 REC Release.
Summary
Issue has been discussed twice at RIG and has been identified via data cleanse activity. Parties identified that there are a number of meters (NG alone have 5k in this state) that are showing as terminated but an active Energy Supplier appointment. Discussion at RIG identified that REC Is potentially lacking detail/obligations/timescales on suppliers/DNOs to report/update/respond to disconnection queries.
Change Plan
Change Plan approved by Change Panel
Completed
Start:
Due:
Completion:
01 Apr 2025Presented at Change Issues Group
Completed
Start:
Due:
Completion:
03 Apr 2025Change Report (For Consultation) approved by Change Panel
Completed
Start:
Due:
Completion:
17 Jun 2025Approved at Change Panel
Completed
Start:
Due:
Completion:
05 Aug 2025Impacted Consumers
Impacted REC Documents
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
I0191 draft legal text for IA
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Document title
R0191 draft legal text for consultation - pre MHHS
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Document title
R0191 draft legal text for consultation - post MHHS
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Problem Statement
There is no time scale by which Energy Suppliers need to have submitted the Registration De-Activation Request or for electricity to have raised a query with the Distribution Network Operator (DNO) if they believe the Metering Point should not be Disconnected. This raises difficulties for the REC Performance Assurance team when monitoring and enforcing this obligation.
Stages Selection
I0191- De-energisation of disconnected meters
I0191 Change Report (Proposal Plan) V1.1 Approved 01.04.25
I0191 Consolidated Impact Assessment Responses v1.0
R0191 Change Report (For Consultation) V1.1
R0191 Consolidated Consultation Responses V1.0
R0191 Change Report (Final Recommendation) Approved 05.08.25
Company Name
REC Issues Group
Review status
Review required
Related Meter Point RMP status rules
Date of latest update
Type
Change
ID
R0190
Change Category
Change Path
Priority
Urgent
No
Latest Update
This Change Proposal has been implemented as part of the February 2026 REC Release.
Summary
The drafting in Schedule 28 – Related Metering Points has been updated for Market-wide Half Hourly Settlement (MHHS), allowing related Metering Points to be in a Status of Operational or Created in MPRS, as long as all Related Metering Points are in the same Status. This Change Proposal suggests allowing Secondary Metering Points with a Status of Created to be linked to Primary Metering Points with a Status of Operational, for MHHS migrated Metering Points only.
Change Plan
Presented at Change Issues Group
Completed
Start:
Due:
Completion:
07 Aug 2025Proposal Plan approved by Change Panel
Completed
Start:
Due:
Completion:
19 Aug 2025Impacted Consumers
Impacted REC Documents
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
I0190 - Draft Schedule 28 changes for IA
Archive
Off
Problem Statement
By not allowing Primary Metering Points with a Status of Operational to be linked to Secondary Metering Points with a Status of Created, where the Metering Points have migrated into the MHHS arrangements, full advantage is not being taken of the MHHS functionality of automatically appointing agents to Secondary Metering Points.
Stages Selection
SME
SME Role
Lead Assurance Analyst
SME User
awaghorn@deloitte.co.uk
I0190 - Related Meter Point RMP status rules
I0190 Change Report (Proposal Plan) V1.0
I0190 Consolidated Information Request Responses v1.0
I0190 Consolidated Impact Assessment Responses v1.0
I0190 Extension to Plan V1.0 approved 30.10.25
R0190 Change Report (For Consultation) V1.0 approved 18.11.25
R0190 Consolidated Consultation Responses v1.0
R0190 Change Report (Final Recommendation) V1.0 post vote
Company Name
Code Body/ Administrator
Review status
Review required
Proposal for Limiting Queries in EES API Calls (Single Query per API Call)
Date of latest update
Type
Change
ID
R0179
Change Category
Change Path
Priority
Urgent
No
Latest Update
This Change Proposal has been implemented as part of the February 2026 REC Release.
Summary
This issue has been raised proposing to establish a limit on the number of queries permitted within a single Application Programming Interface (API) call. As there is potential for performance degradation and system instability that can occur when a large number of queries are made in a single API call to the Electricity Enquiry Services (EES) API. The aim would be to prevent overwhelming the system and ensure consistent response times and reliability. Therefore, this proposes implementing a limit of 1000 queries per single API call.
Change Plan
Request for Information
Completed
Start:
03 Jun 2024Due:
05 Jul 2024Completion:
05 Jul 2024Change Issue Group
Completed
Start:
05 Jul 2024Due:
01 Aug 2024Completion:
01 Aug 2024Impacted Consumers
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
Request For Information (RFI)
Archive
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Problem Statement
The absence of a limit on the number of queries (batch processing) within a single API call could cause performance issues and system instability. As a result, system responsiveness may degrade when a large number of queries are made in a single call, impacting user experience and hindering the ability of the EES API to consistently meet user demands.
Stages Selection
SME
SME Role
Lead Technical Analyst
SME User
maxime.van-eyseren@capgemini.com
Issue Form
EES API Interface Specification REDLINE DRAFT for R0179
R0179 - Change Report - Final Recommendation Approved
R0179 Change Report (Consultation)
R0179 Consolidated consultation responses (non- confidential)
Re-baseline Change Plan 15.07.25
Consolidated IA responses (non-confidential)
I0179 Change Report (Impact Assessment)
Service Provider - Impacts Data
I0179 - Consolidated RFI Responses
Change Report (Proposal Plan)
Consultation on implementation date response
Change Report - Final Recommendation (new implementation date)
Company Name
RECCo
Review status
Review required
Withdrawal of Service Termination Issue Reporting Guidance (STIRG) from REC Governance.
Date of latest update
Type
Change
ID
R0170
Change Category
Priority
Urgent
No
Latest Update
15/11/2024 - The Authority have published their decision, to reject this change proposal in line with the Code Manager and REC Change Panel recommendations. This decision can be found here: https://www.ofgem.gov.uk/decision/retail-energy-code-modification-r0170-rejected
Summary
REC MEP have decided that the current governance for the STIRG is unsuitable for this type of document, and that it should be removed from the REC into ENA governance.
Change Plan
Party Impact Assessment opens
Completed
Start:
09 May 2024Due:
21 Jun 2024Completion:
20 Jun 2024Party Impact Assessment closes
Completed
Start:
21 Jun 2024Due:
12 Jul 2024Completion:
12 Jul 2024Preliminary Change Report published
Completed
Start:
12 Jul 2024Due:
26 Jul 2024Completion:
25 Jul 2024Change Panel review
Completed
Start:
26 Jul 2024Due:
06 Aug 2024Completion:
06 Aug 2024Consultation opens
Completed
Start:
06 Aug 2024Due:
09 Aug 2024Completion:
08 Aug 2024Consultation closes
Completed
Start:
09 Aug 2024Due:
02 Sep 2024Completion:
02 Sep 2024Final Change Report published
Completed
Start:
02 Sep 2024Due:
20 Sep 2024Completion:
05 Sep 2024Change Panel review
Completed
Start:
20 Sep 2024Due:
01 Oct 2024Completion:
17 Sep 2024Status
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed solution summary
- As a Consumer, I want to be confident that any person working on the metering at my property has the adequate guidance under the appropriate governance to allow works to be conducted safely.
- As an electricity MEM or DNO, I need the STIR Guidance Document to sit under appropriate governance so I can be confident it is kept up to date for industry needs.
Proposed Solution Document
Document title
R0170 Draft Legal Text 06.06.24
Archive
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Problem Statement
The issues surrounding the status of the STIR Guidance document is impacting on the ability of involved parties to review and update the guidance.
Stages Selection
ENALET~1.pdf
Change Proposal Form
R0170 Change Proposal Plan v1.0 (Approved) 18.06.2024
R0170 Initial Assessment Report v1.0 (approved) 18.06.24
R0170 Consolidated Impact Assessment Responses PUBLIC v1.0
R0170 Change Report (For Consultation) V1.1
R0170 Consolidated Consultation Responses PUBLIC v1.0
R0170 Change Report (Final Recommendation) Post Vote v1.0
Company Name
-
Review status
Review required
Removal of the Green Deal Panel
Date of latest update
Type
Change
ID
R0166
Change Category
Change Path
Priority
Urgent
No
Latest Update
23/08/2024 - This change was successfully implemented as part of the August 2024 Extraordinary REC Release on 23 August 2024.
Summary
This Change Proposal seeks to remove the Green Deal Panel Terms of Reference from the REC Baseline Statement and product set, and to amend the Change Panel Terms of Reference to incorporate consideration of Green Deal business.
Change Plan
Preliminary Change Report Published
Completed
Start:
22 Apr 2024Due:
09 May 2024Completion:
09 May 2024Consultation Issued
Completed
Start:
09 May 2024Due:
09 May 2024Completion:
09 May 2024Final Change Report Issued
Completed
Start:
09 May 2024Due:
07 Jun 2024Completion:
07 Jun 2024Responsible Committee Decision
Completed
Start:
07 Jun 2024Due:
18 Jun 2024Completion:
18 Jun 2024Impacted Consumers
Impacted REC Parties and Market Participants
Status
Implementation Date
23 August 2024
| 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
- As a party I want Green Deal matters, should they arise to be dealt with in a timely fashion. This could be difficult under the current arrangements where it is not possible to get a quorate panel to make decisions.
Proposed Solution Document
Document title
REC Change Panel - Terms of Reference - Red-lined
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Problem Statement
Since the REC was established, no business has been raised that would require the Green Deal Panel to meet and therefore the group has not yet convened. As well as being an unnecessary administrative consideration, it is a challenge to keep the Members and Chair abreast of the wider REC Change Process, and the Green Deal Panel may therefore find it more challenging to discharge its functions in the event that it needs to be convened.
Stages Selection
Change Proposal Form
R0166 - Change Proposal Plan v1.0 (Approved)
R0166 - Initial Assessment Report (Approved)
R0166 - Preliminary Change Report V1.0
R0166 Final Change Report v1.0
Company Name
REC Code Manager
Review status
Review required
Removing the Enumerations from Communications Method Data Item (J0386) to align with BSC CP 1594
Date of latest update
Type
Change
ID
R0164
Other Industry Codes impacted
Change Path
Priority
Urgent
No
Latest Update
23/08/2024 - This change was successfully implemented as part of the August 2024 Extraordinary REC Release on 23 August 2024.
Summary
BSC has raised Change Proposal CP1594 which seeks to create an approvals process and a valid set for communications method. This change is proposing to create an approvals process to allow for the managed end dating of older technologies, such as Public switched telephone network (PSTN), Circuit Switched Data (CSD) and later 2G, and the assessment of the validity of newer communications technologies, such as (but not exclusively) Narrow Band-Intern of Things (NBIoT) and Category M (CAT-M). The evolution of metering communication systems underscores the need for timely updates. Legacy systems risk inefficiencies and potential security vulnerabilities. Implementing an approval process, modelled on BSCP601, ensures a standardised approach to introducing new technologies and managing the exit of old ones. Further justifications include: • To allow for the centrally managed end-dating of redundant communications technologies in line with known deadlines for those technologies to become redundant and unreliable. • To allow for the wider industry education of newer types of communication technologies. • To create and expand the already existing central knowledge base of the evolution and attributes of newer communication technologies as they relate to Settlement Metering Equipment. • To ensure transparency for all industry participants on the newer communications types available and the dates for which legacy communications must be removed. CP1594 will create a valid set, linked to the new approval process and using Data Item J0386 as a conduit to detail the approved communication methods as well as end dates for communication methods which are becoming redundant and unreliable.
Change Plan
PARTY IMPACT ASSESSMENT ISSUED
Completed
Start:
16 Apr 2024Due:
25 Apr 2024Completion:
25 Apr 2024PRELIMINARY CHANGE REPORT AND CONSULTATION ISSUED
Completed
Start:
25 Apr 2024Due:
23 May 2024Completion:
23 May 2024FINAL CHANGE REPORT ISSUED
Completed
Start:
23 May 2024Due:
20 Jun 2024Completion:
20 Jun 2024RESPONSIBLE COMMITTEE DECISION
Completed
Start:
20 Jun 2024Due:
02 Jul 2024Completion:
02 Jul 2024Impacted Consumers
Impacted REC Parties and Market Participants
Status
Implementation Date
23 August 2024
| 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
- As a Supplier/DNO/MEM, I want to ensure that Market Messages I send or receive to contain up-to-date, accurate data, so that I am able to effectively engage with the wider industry.
- As a non-REC Party Service User I want to ensure that Market Messages I send or receive to contain up-to-date, accurate data, so that I am able to effectively engage with the wider industry.
Proposed Solution Document
Document title
R0164 - Draft Solution - J0386 Data Item - Data Spec Changes 22.05.24
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Problem Statement
The BSC are making changes to how permissible Outstation communication methods are captured and recorded within the industry. In order to align with these BSC led changes, the REC Data Specification must be reviewed in order to update the affected Data Item – DI50178 (J0386).
Stages Selection
SME
SME Role
Lead Technical Analyst
SME Role
Lead Assurance Analyst
R0164 - Change Proposal Form (Word)
R0164 Change Proposal Form (PDF)
R0164 Change Proposal Plan (Approved) V1.0
R0164 Initial Assessment Report (Approved) V1.0
R0164 Consolidated Impact Assessment Responses v1.0 23.05.24
R0164 Preliminary Change Report (Published For Consultation) V1.0 23.05.24
R0164 Consolidated Consultation Responses v1.0 20.06.24
R0164 Final Change Report (Post-Vote) v1.0 03.07.24
Company Name
Elexon
Review status
Review required
Electricity Supply to Hydrogen Electrolysers
Date of latest update
Type
Change
ID
R0160
Change Category
Priority
Urgent
Yes
Latest Update
28/06/2024 - Change implemented as part of the June 2024 REC Release
Summary
This Change to the Retail Energy Code is proposing to facilitate efficient and robust procedures between Licensed Suppliers and LCCC as part of the regulatory solution to prove that electricity supplied to the hydrogen producer is LCHS-compliant.
Change Plan
Preliminary Change Report and Consultation Issued
Completed
Start:
20 Mar 2024Due:
02 May 2024Completion:
25 Apr 2024Consultation Close
Completed
Start:
02 May 2024Due:
24 May 2024Completion:
20 May 2024Final Change Report Issued
Completed
Start:
24 May 2024Due:
07 Jun 2024Completion:
23 May 2024Responsible Committee Decision
Completed
Start:
07 Jun 2024Due:
18 Jun 2024Completion:
04 Jun 2024Authority Determination Requested
Completed
Start:
18 Jun 2024Due:
19 Jun 2024Completion:
05 Jun 2024Status
Implementation Date
28 June 2024
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed solution summary
- A modification to the Retail Energy Code to facilitate efficient and robust procedures between Licensed Suppliers and LCCC as part of the regulatory solution to prove that electricity supplied to the hydrogen producer is LCHS-compliant.
Proposed Solution Document
Document title
Electricity Supply to Hydrogen Electrolysers Schedule (Draft)
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Document title
R0160 - Draft Schedule - Electricity Supply to Hydrogen Electrolysers (Published for FCR) 23.05.2024)
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Document title
R0160 - Schedule 1 - Interpretations & Definitions at FCR (23.05.2024)
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Problem Statement
Primary legislation for hydrogen production does not mention the role of Licensed Suppliers. Consequently, the LCCC does not have the power needed to compel Licensed Suppliers to disclose the information needed by the LCCC to carry out its duties with regards the Hydrogen Production Business Model (HPBM) and Low Carbon Hydrogen Agreement (LCHA) to prove that the electricity is compliant with the Low Carbon Hydrogen Standard (LCHS) .
Stages Selection
R0160 - CP Form Electricity Supply to Hydrogen Electrolysers
R0160 - Draft Legal Text (Submitted by proposer)
R0160 - Change Proposal Plan V1.0 (Approved) 18.04.2024
R0160 - Initial Assessment Report v1.0 (Approved) 18.04.2024
R0160 - Preliminary Change Report (Published for Consultation) 25.04.2024
R0160 - Consolidated Consultation Responses (21.05.2024)
R0160 - Final Change Report V2.0 (Post-vote) 04.06.2024
R0160 Authority Decision
Company Name
-
Review status
Review required