Consequential Change for CSS Smart Meter Data Retriever Appointments
Date of latest update
Type
Change
ID
R0097
Change Category
Change Path
Urgent
Yes
Latest Update
22/09/25 - This Change Proposal has been implemented as part of the MHHS M8 22 September 2025 REC Release.
Summary
This change looks to make amendments to the Data Specification for the Supplier Arranged Appointments messages exchanged between the Electricity Retail Data Service and Central Switching Service.
Change Plan
Service Provider Impact Assessment started
Completed
Start:
20 Feb 2023Due:
22 Mar 2023Completion:
22 Mar 2023Service Provider Impact Assessment completed
Completed
Start:
22 Mar 2023Due:
03 May 2023Completion:
03 May 2023Preliminary Change Report and Consultation issued
Completed
Start:
03 May 2023Due:
19 May 2023Completion:
19 May 2023Consultation closed
Completed
Start:
19 May 2023Due:
05 Jun 2023Completion:
05 Jun 2023Final Change Report issued
Completed
Start:
05 Jun 2023Due:
21 Jun 2023Completion:
15 Jun 2023Responsible Committee decision
Completed
Start:
21 Jun 2023Due:
28 Jun 2023Completion:
04 Jul 2023Appeal Window opens
Completed
Start:
28 Jun 2023Due:
04 Jul 2023Completion:
04 Jul 2023Appeal Window closes
Completed
Start:
04 Jul 2023Due:
18 Jul 2023Completion:
18 Jul 2023Impacted Consumers
Impacted REC Services
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 summary
- As the CSS Provider, I want to be able to identify which appointment messages received from ERDS require a response, so that I can confirm whether the appointment was successfully made in SMDSP
- As the ERDS Provider, I want to be able to indicate which appointment messages I need to receive a response for, so that I can understand which appointments have been successful in the SMDSP
- As an Electricity Supplier, I want Supplier appointments in the ERDS to match those held in SMDSP
Proposed Solution Document
Document title
R0097 Proposed Solution (Initial Assessment) 14.03.23
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Document title
R0097 Proposed Solution (Impact Assessment) 22.03.23
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Document title
R0097 Proposed Solution (Consultation) 17.05.23
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Document title
R0097 Draft Legal Text (Consultation) 17.05.2023
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Problem Statement
The implementation of Change Proposal R0044, will result in the Central Switching Service (CSS) providing an asynchronous response to the Electricity Retail Data Service (ERDS) upon a successful, or unsuccessful Smart Meter Data Retriever (SMDR) appointment within the SMDSP. This will significantly increase the volume of CSS messages, as there is currently no mechanism for the CSS to recognise when a response is required. The increased volume could have a significant impact on central system performance.
Stages Selection
SME
SME Role
Lead Technical Analyst
R0097 - Change Proposal Form downloadable version 20.02.2023
R0097 - Change Proposal Plan v2.0 (Approved) 21.03.2023
R0097 - Initial Assessment Report v2.0 (Approved) 21.03.23
R0097 - Preliminary Change Report v1.0 (For Consultation) 19.05.2023
R0097 Consolidated Consultation Responses v1.0 PUBLIC 15.06.2023
R0097 - Final Change Report v2.0 (Post-Vote) 04.07.2023
Company Name
REC Technical Services
Review status
Review required
Clarify obligations on gas meter exchanges that occur close to CoS
Date of latest update
Type
Change
ID
R0094
Change Category
Change Path
Priority
Urgent
No
Latest Update
08/11/2024 - This Change Proposal has been implemented as part of the November 2024 REC Release.
Summary
This change has been raised to address an issue with the 'Switch with a Concurrent Change of MEM process.'. MEMs are obliged to issue ONJOBs to the CDSP as part of a meter exchange. However, this would not be issued if the MEM has received a de-Appointment flow as part of the Switch. This change proposes to obligate MEMs to issue ONJOBs for any completed meter exchanges, even after receiving a de-Appointment flow. This will ensure accurate Meter Technical Details are available to the gaining Supplier and MEM.
Change Plan
Solution Development & Analysis
Completed
Start:
17 Feb 2023Due:
29 Mar 2024Completion:
27 Mar 2024Party Impact Assessment Due
Completed
Start:
29 Mar 2024Due:
19 Apr 2024Completion:
19 Apr 2024Preliminary Change Report Issued
Completed
Start:
19 Apr 2024Due:
26 Apr 2024Completion:
26 Apr 2024Responsible Committee Review
Completed
Start:
26 Apr 2024Due:
08 May 2024Completion:
08 May 2024Consultation Closes
Completed
Start:
08 May 2024Due:
31 May 2024Completion:
31 May 2024Final Change Report Issued
Completed
Start:
31 May 2024Due:
05 Jun 2024Completion:
05 Jun 2024Responsible Committee Decision
Completed
Start:
05 Jun 2024Due:
12 Jun 2024Completion:
12 Jun 2024Appeal Window Closure
Not Started
Start:
12 Jun 2024Due:
26 Jun 2024Completion:
Status
Implementation Date
08 November 2024
| Included changes | Affected REC Items | |
|---|---|---|
| R0105 | Review of ONAGE SLAs |
|
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed solution summary
- As a Consumer, I want my Supplier to have accurate information about my meter, so that I do not experience billing problems following a Switch.
- As a MEM, I want to clearly understand my obligations relating to data transfer during a Switch, so that records of work I carry out are accurately recorded. 2 - As a Registered Supplier, I want metering data on my portfolio of Registrable Measurement Points to be accurate, so that Consumers do not experience billing problems or have a negative switch experience. 3 - As the CDSP, I want Change of Metering Asset data communicated with me to be timely and accurate, so that I am better able to fulfil my role and support REC Parties.
Proposed Solution Document
Document title
R0094 Draft Legal Text
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Document title
R0094 Solution - Draft Legal Text V1.1 05.06.24
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Problem Statement
When Metering Asset work is carried out concurrently with a Switch, details of the work undertaken may not be sent to industry by the MEM, resulting in inaccurate and out of date Metering Asset data being passed to the gaining Registered Gas Supplier.
Stages Selection
SME
SME Role
Lead Technical Analyst
SME User
beth.brown@capgemini.com
SME Role
Lead Assurance Analyst
R0094 - Change Proposal Form downloadable version 17.02.2023
R0094 Change Proposal Plan v1.0 (Approved) 04-10-2023
R0094 Change Proposal Plan v2.0 (Approved) 01-03-2024
R0094 Initial Assessment Report v1.0 (Approved) 04-10-2023
R0094 Change Proposal Re-Plan (Approved) V1.0 01.03.24
R0094 Consolidated Impact Assessment Responses
R0094 Preliminary Change Report (Approved) V1.0 08.05.24
R0094 Consolidated Consultation Responses V1.0 05.06.24
R0094 Final Change Report (Post-Vote) V1.0 12.06.24
Company Name
-
Review status
Review required
Uplift to CSS Maximum Demand Volumes during MHHS Migration Period
Date of latest update
Type
Change
ID
R0093
Change Category
Change Path
Priority
Urgent
No
Latest Update
This change was implemented as part of the the Extraordinary release on 28 March 2024. * This Change Proposal supports the transition to Market-wide Half Hourly Settlement.
Summary
This Change Proposal seeks to make the necessary updates to the REC, primarily to the Central Switching Service (CSS) Service Definition, to ensure that the Switching Operator is appropriately prepared for the increase in message volumes that will be created during the Market Wide Half-Hourly Settlement (MHHS) programme migration period.
Change Plan
Solution Analysis and Development completed
Completed
Start:
08 Feb 2023Due:
06 Apr 2023Completion:
04 Apr 2023Service Provider Preliminary Impact Assessment period started
Completed
Start:
06 Apr 2023Due:
06 Apr 2023Completion:
04 Apr 2023Service Provider impact assessment period completed
Completed
Start:
06 Apr 2023Due:
23 Oct 2023Completion:
23 Oct 2023Preliminary Change Report issued
Completed
Start:
23 Oct 2023Due:
17 Nov 2023Completion:
17 Nov 2023Responsible Committee review
Completed
Start:
17 Nov 2023Due:
29 Nov 2023Completion:
29 Nov 2023Consultation issued
Completed
Start:
29 Nov 2023Due:
01 Dec 2023Completion:
01 Dec 2023Consultation closed
Completed
Start:
01 Dec 2023Due:
15 Dec 2023Completion:
15 Dec 2023Final Change Report issued
Completed
Start:
15 Dec 2023Due:
12 Jan 2024Completion:
12 Jan 2024Responsible Committee decision
Completed
Start:
12 Jan 2024Due:
24 Jan 2024Completion:
24 Jan 2024Appeal Window closure
Completed
Start:
24 Jan 2024Due:
08 Feb 2024Completion:
08 Feb 2024Status
Implementation Date
28 March 2024
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed solution summary
- As an Electricity Consumer, I want the migration of my MPAN to the new HH Settlement arrangements to be as smooth as possible, so that the service I receive from my Electricity Supplier or it’s appointed agents is not interrupted As an Electricity Consumer, I want my ability to switch to be impacted as little as possible by MHHS migration activities
- As the Switching Operator, I want to be prepared for the increased volumes expected during the MHHS Migration Period. As the ERDS Provider, I want the CSS to be able to manage the volume of messages being sent so that I can provide the service I am required to during the MHHS Migration Period
- As an Electricity Supplier, I want the MPANs I select to the new HH Settlement arrangements to complete their migration without undue delay, so that the service I provide to Consumers is impacted as little as possible and so that I can meet my migration obligations As a MEM, as part of migration I want my new appointment and my legacy de-appointment to occur within the planned timescales so that the services I provide are impacted as little as possible As a Data Service, as part of migration, I want my new appointment to occur within the planned timescales so that the services I provide can commence in a timely manner As a Data Collector, I want my legacy de-appointment to occur within the planned timescales so that I have a clear understanding and smooth ending to the service I provide
Proposed Solution Document
Document title
R0093 Solution Development Report v2.0 13.11.2023
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Document title
R0093 - Legal text for Consultation 30.11.2023
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Document title
R0093 - Legal text for PCR 17.11.2023
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Problem Statement
As part of the MHHS programme, it is necessary to migrate approximately 31 million MPANs from the existing settlement arrangements to those under the MHHS Target Operating Model. This will create a significantly increased volume of messages, whether for Switches or changes to Supplier Agents, for the CSS during the MHHS Migration Period. The CSS Service Definition does not currently require the Switching Operator to be capable of processing these additional volumes.
Stages Selection
SME
SME Role
Lead Technical Analyst
Uplift to CSS NFRs for MHHS Migration Period - Interpretations.docx
Uplift to CSS NFRs for MHHS Migration Period - CSS Definition .docx
R0093 Change Proposal Form
R0093 - Change Proposal Plan v3.0 (Approved) 15.09.2023
R0093 - Initial Assessment Report v1.0 (Approved) 04.04.2023
R0093 - Preliminary Change Report v2.0 (Approved) 30.11.2023
R0093 Consolidated Consultation Responses v1.0 PUBLIC
R0093 - Final Change Report v2.0 (Post-Vote) 24.01.2024
R0093 - Authority Decision to Reject Appeal 21.03.2024
R0093 - Final Change Report v3.0 (Revised implementation date) 25.03.2024
Company Name
-
Review status
Review required
Clarifications to the Theft Detection Incentive Scheme
Date of latest update
Type
Change
ID
R0091
Change Category
Change Path
Priority
Urgent
No
Latest Update
02/04/2023 - Change Proposal implemented on 01 April 2023
Summary
The Energy Theft Detection Incentive Scheme (TDIS) seeks to encourage Suppliers to undertake theft investigations. Following the completion of the first scheme year operated wholly under the REC, there have been several areas of the Code identified where additional clarity would benefit the administration of the TDIS.
Change Plan
Initial Assessment Report Issued
Completed
Start:
23 Jan 2023Due:
27 Jan 2023Completion:
27 Jan 2023Change Proposal Plan Issued
Completed
Start:
27 Jan 2023Due:
27 Jan 2023Completion:
27 Jan 2023Preliminary Change Report Issued
Completed
Start:
07 Feb 2023Due:
17 Feb 2023Completion:
17 Feb 2023Consultation Issued
Completed
Start:
17 Feb 2023Due:
17 Feb 2023Completion:
17 Feb 2023Responsible Committee Decision
Completed
Start:
17 Feb 2023Due:
24 Mar 2023Completion:
24 Mar 2023IAR and CPP Approval
Completed
Start:
27 Jan 2023Due:
07 Feb 2023Completion:
07 Feb 2023Impacted REC Documents
Impacted REC Parties and Market Participants
Status
Implementation Date
01 April 2023
| Included changes | Affected REC Items | |
|---|---|---|
| R0100 | Update to Error Handling Documents |
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed solution summary
- As an Energy Supplier, I need my TDIS obligations to be clear to ensure I can meet the requirements appropriately.
- As the Code Manager, I want all Suppliers to be clear on the required Energy Theft reporting so that the scheme can be effectively administered.
- As RECCo, I want to ensure that all Suppliers have clear obligations to ensure the effective administration of TDIS to support the Theft Reduction Strategy.
Proposed Solution Document
Document title
R0091 - Legal Text (as at IAR/CPP)
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Document title
R0091 - Legal Text at FCR 21.03.2023
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Document title
R0091 - Legal Text FINAL
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Document title
EMAR Link
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Problem Statement
To enable REC Parties and their agents to successfully meet the obligations of the TDIS, the REC needs to accurately reflect the intention of the requirements and current processes.
Stages Selection
R0091 - Change Proposal Form
R0091 - Change Proposal Plan (Approved) 07.02.2023
R0091 - Initial Assessment Report v1.0 (Approved) 07.02.2023
R0091 - Preliminary Change Report v1.0 17.02.2023
R0091 - Consolidated Consultation Responses
R0091 - Final Change Report v1.0 (Pre-Vote) 21.03.2023
R0091 - Final Change Report v2.0 (Post-Vote) 24.03.2023
Company Name
-
Review status
Review required
Alignment of Data Specification with Pre-REC Rules and Consequential Impacts on R0011 Legal Text
Date of latest update
Type
Change
ID
R0090
Change Category
Change Path
Priority
Urgent
No
Latest Update
30/06/2023 - This change was implemented on 30 June 2023 as part of the June 2023 REC Release
Summary
This Change Proposal seeks to address inconsistencies in the REC Data Specification to reflect pre-REC Data Transfer Catalogue (DTC) standards. This will also address consequential updates applied to the R0011 legal text.
Change Plan
Solution Development
Completed
Start:
23 Jan 2023Due:
23 Feb 2023Completion:
23 Feb 2023Party Impact Assessment Issued
Completed
Start:
23 Feb 2023Due:
24 Feb 2023Completion:
24 Feb 2023Preliminary Change Report Issued
Completed
Start:
24 Feb 2023Due:
27 Mar 2023Completion:
24 Mar 2023Consultation Issued
Completed
Start:
27 Mar 2023Due:
27 Mar 2023Completion:
24 Mar 2023Final Change Report Issued
Completed
Start:
27 Mar 2023Due:
19 Apr 2023Completion:
19 Apr 2023Responsible Committee Decision
Not Started
Start:
19 Apr 2023Due:
26 Apr 2023Completion:
Status
Implementation Date
30 June 2023
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed solution summary
- As a Market Participant I want to have clarity on the format of Data Items within the Data Specification, so that my internal systems can be correctly configured to send and receive Data Items within Market Messages.
Proposed Solution Document
Document title
Final Legal Text.zip
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Problem Statement
The R0011 legal text contains inconsistencies with other Data Items that were last amended before the REC Data Specification came into effect. Such inconsistencies have potential to cause confusion to Parties implementing the R0011 legal text.
Stages Selection
SME
SME Role
Lead Technical Analyst
SME User
rosalind.timperley
Summary of R0011 Impacted Data Specification
R0090 Change Proposal Plan v1.0 (Approved) 21.02.2023
R0090 Initial Assessment Report v1.0 (Approved) 21.02.2023
R0090 Preliminary Change Report v1.0 (Issued for Consultation) 24.03.2023
Summary of amendments to R0011 Legal Text 19.04.2023
R0090 Final Change Report v2.0 (Post-Vote) 26.04.2023
Company Name
-
Review status
Review required
Make Shipper NExA values available on the GES portal
Date of latest update
Type
Change
ID
R0088
Other Industry Codes impacted
Change Path
Priority
Urgent
No
Latest Update
03/11/23 - This change was implemented on 03 November 2023 as part of the November 2023 REC Release
Summary
This Change Proposal seeks to deliver the consequential REC changes for Uniform Network Code (UNC) Modification 0701 Aligning Capacity Booking under the UNC and arrangements set out in relevant NExAs. Modification (MOD) 0701 will ensure that the daily capacity allowed by the Network Exit Agreement (NExA) and that permitted by the UNC are aligned.
Change Plan
Initial Assessment and Change Proposal Plan issued
Completed
Start:
16 Jan 2023Due:
24 Mar 2023Completion:
24 Mar 2023Initial Assessment Report and Change Plan approved
Completed
Start:
24 Mar 2023Due:
04 Apr 2023Completion:
04 Apr 2023Service Provider Impact Assessment
Completed
Start:
04 Apr 2023Due:
25 Apr 2023Completion:
24 Apr 2023Party Impact Assessment
Completed
Start:
25 Apr 2023Due:
31 May 2023Completion:
31 May 2023Preliminary Change Report published
Completed
Start:
31 May 2023Due:
16 Jun 2023Completion:
16 Jun 2023Consultation
Completed
Start:
16 Jun 2023Due:
21 Jul 2023Completion:
21 Jul 2023Final Change Report published
Completed
Start:
21 Jul 2023Due:
18 Aug 2023Completion:
18 Aug 2023Responsible Committee decision
Completed
Start:
18 Aug 2023Due:
30 Aug 2023Completion:
30 Aug 2023Impacted Consumers
Impacted REC Services
Impacted REC Parties and Market Participants
Status
Implementation Date
03 November 2023
| Included changes | Affected REC Items | |
|---|---|---|
| R0104 | Clarifying requirement for continuous billing following an Erroneous Switch |
Documents
| Name | Version | Last updated | Actions |
|---|---|---|---|
| 1.0 | 08 Jun 2026 |
|
|
| 1.0 | 08 Jun 2026 |
|
Download
Copy link
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed solution summary
- As a Consumer, where I have entered a bi-lateral NExA with the relevant Transporter, I want my Shipper and Transporter to have access to all the data they need when capacity referrals to the Gas Transporters are required.
- As a Gas Transporter, I want the details of the NExA to be held in GES, to increase visibility of the existence of the NExA and to provide details of the offtake parameters.
- As a Gas Shipper, I need to understand both that a NExA exists, and that I have visibility of the offtake parameters relative to the site, so that I can ensure that I take the necessary actions to ensure the Consumer has the appropriate booked Supply Point Capacity.
Proposed Solution Document
Document title
R0088 Gas DAM v3.1 at FCR (18.08.2023)
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Problem Statement
XRN 5186 will make updates to the GES to implement the solution for UNC MOD 701. Following Ofgem’s decision to approve MOD 701, a REC Change Proposal is required to make changes to the REC DAM to enable the delivery of the full cross code solution.
Stages Selection
SME
SME Role
Lead Technical Analyst
R0088 - Initial Assessment Report v1.0 (Approved) 04.04.2023
R0088 - Preliminary Change Report (Post-Vote) 28.06.2023
R0088 - Change Proposal Plan v1.0 (Approved) 04.04.2023
R0088 - Final Change Report v2.0 (Approved) 30.08.2023
R0088 - Final Change Report v1.0 (Pre-Vote) 18.08.2023
Company Name
Xoserve
Review status
Review required
Housekeeping changes to the approved legal text for R0047
Date of latest update
Type
Change
ID
R0084
Change Category
Change Path
Priority
Urgent
No
Latest Update
02/04/2023 - Change Proposal implemented on 01 April 2023
Summary
Change Proposal R0047 - Metering Code of Practice Consolidation Review, has been approved for implementation on 01 April 2023. Since approval of the Change Proposal the Code Manager has identified a number of omissions, clarifications, typographical errors and changes needed to the approved legal text. This CP has been raised to make the changes to the legal text and ensure accurate text is introduced into the REC.
Change Plan
Preliminary Change Report published and issued for Consultation
Completed
Start:
16 Dec 2022Due:
24 Feb 2023Completion:
24 Feb 2023Consultation ends
Completed
Start:
24 Feb 2023Due:
10 Mar 2023Completion:
10 Mar 2023Final Change Report published
Completed
Start:
10 Mar 2023Due:
21 Mar 2023Completion:
21 Mar 2023Responsible Committee decision (Ex-Committee)
Completed
Start:
21 Mar 2023Due:
24 Mar 2023Completion:
24 Mar 2023Appeal window closure
In Progress
Start:
24 Mar 2023Due:
07 Apr 2023Completion:
Impacted REC Documents
Impacted REC Parties and Market Participants
Status
Implementation Date
01 April 2023
| Included changes | Affected REC Items | |
|---|---|---|
| R0100 | Update to Error Handling Documents |
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed solution summary
- As a DNO, MEM, AMI, ASP or MI, I want all Code of Practice obligations to be clear and transparent, to ensure all obligations placed upon my organisation and operatives are understood and can be met in the most efficient way.
- As an Energy Supplier, I want to be confident that my Appointed agents are compliant with all relevant CoP obligations to ensure the safety of my Consumers.
- As RECCo, I want the Metering Scheme obligations to be clear and transparent, to ensure the arrangements deliver against the RECCo strategic aims.
- As the Metering Scheme Auditor, I want the Metering Scheme obligations to be clear and transparent, to ensure the arrangements deliver against the RECCo strategic aims.
Proposed Solution Document
Document title
R0084 Legal text changes - CoMCoP - (For Final Change Report) 21.03.2023
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Document title
R0084 Legal text changes - CoMCoP - (For consultation) 24.02.2023
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Problem Statement
To enable REC Parties to successfully meet the obligations of the CoMCoP, when it is implemented via Change Proposal R0047 on 01 April 2023, the CoMCoP needs to accurately reflect the intention of R0047 and current processes.
Stages Selection
SME
SME Role
Lead Technical Analyst
SME User
rosalind.timperley
R0084 - CP Form (Downloadable version)
R0084 - Legal text changes identified pre IAR/CPP - uploaded 12.02.23
R0084 - Change Proposal Plan v1.0 (Approved) 23.02.2023
R0084 - Initial Assessment Report v1.0 (Approved) 23.02.2023
R0084 - Preliminary Change Report v1.0 (Published for Consultation) 24.02.2023
R0084 - Consolidated consultation responses v1.0 21.03.2023
R0084 - Final Change Report v2.0 (Post-Vote) 24.03.2023
Company Name
-
Review status
Review required
Changes to Supply Number Format for MHHS
Date of latest update
Type
Change
ID
R0083
Change Category
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 Supply License requires Suppliers to provide the Supply Number to each Consumer on every bill, or at least once per year where no bill has been sent. The Supply Number format is prescribed by the REC and is detailed in the Energy Market Data Specification. The MHHS design is changing the data associated with each individual metering point, including those data items currently displayed within the Supply Number top line. To support Electricity Supplier implementation of the MHHS arrangements, a clearly defined solution is required setting out a revised approach to populating the Supply Number on Consumer’s bills and statements.
Change Plan
Solution development completed
Completed
Start:
05 Dec 2022Due:
31 Mar 2023Completion:
31 Mar 2023Party Impact Assessment issued
Completed
Start:
31 Mar 2023Due:
06 Apr 2023Completion:
06 Apr 2023Party Impact Assessment closed
Completed
Start:
06 Apr 2023Due:
02 May 2023Completion:
02 May 2023Preliminary Change Report issued
Completed
Start:
02 May 2023Due:
25 May 2023Completion:
26 May 2023REC Change Panel review of PCR
Completed
Start:
25 May 2023Due:
06 Jun 2023Completion:
06 Jun 2023Consultation issued
Completed
Start:
06 Jun 2023Due:
09 Jun 2023Completion:
09 Jun 2023Consultation closed
Completed
Start:
09 Jun 2023Due:
30 Jun 2023Completion:
30 Jun 2023Final Change Report issued
Completed
Start:
30 Jun 2023Due:
21 Jul 2023Completion:
20 Jul 2023REC Change Panel decision
Completed
Start:
21 Jul 2023Due:
01 Aug 2023Completion:
01 Aug 2023Authority Determination requested
Completed
Start:
01 Aug 2023Due:
03 Aug 2023Completion:
02 Aug 2023Alternative Change Proposals
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 summary
- As an electricity Consumer I want to be able to provide my prospective Energy Supplier with the necessary information for them to provide a suitable tariff. As a Non-Domestic Consumer, I want to have the necessary information that will allow me to access tariff information, specific to my business, to help me manage my energy. As an electricity Consumer, I want to have access to the data that will help me appoint my own Metering Equipment Manager (MEM) where permitted.
- As a Supplier, I want to know how to populate and format the Supply Number, so that I can meet my obligations to include it in Consumer bills or statements. As a Third Party Intermediary (TPI), I want Consumers to be able to provide me with the right information to provide appropriate quotes.
- As an independent Distribution Network Operator, I want to be able to identify and use the DUoS Tariff Id so that I can provide transparency on charging that is being applied to my customers. As the Electricity Enquiry Service (EES) Provider, I want to know how to populate the Supply Number so that I can make it available on the EES
Proposed Solution Document
Document title
Approved Solution for R0083 v1.0 26.05.2023
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Document title
Approved Legal Text R0083 Supply Number Format redlining v2.0
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Document title
R0083 - Guidance for Supply Number population v2.0
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Document title
All Solution documents and legal text 06.06.2023 (For PCR)
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Document title
Proposed Solution for R0083 v1.0 26.05.2023 (For PCR)
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Document title
Legal text - Option 1 (R0083) Supply Number Format redlining v2.0 26.05.2023 (For PCR)
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Document title
Proposed Solution for R0083A v2.0 06.06.2023 (For PCR)
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Document title
Legal text - Option 3 (R0083A) Supply Number Format redlining v1.0 26.05.2023 (For PCR)
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Document title
R0083 and R0083A Solution Options Draft Legal Text (IA) 06.04.2023
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Document title
R0083 and 83A - Solution Options v1.0 (Impact Assessment) 06.04.2023
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Problem Statement
The Market-wide Half Hourly Settlement design is impacting the Data Items that are used in the top line of the Supply Number, which Energy Suppliers are obliged to provide to Consumers at least once a year under their Licence. A revised definition of the Supply Number format is required so that Electricity Suppliers have a clear understanding of the approach to populating the Supply Number for metering points that have migrated to the new MHHS arrangements.
Stages Selection
SME
SME Role
Lead Technical Analyst
MHHS Supply Number Consultation Response Summary Anon 08.11.2022
MHHS Supply Number Consultation 14.10.22
R0083 - Change Proposal Form
R0083 and R0083A Initial Assessment Report v2.0 (Approved) 22.02.2023
R0083 and 83A Change Proposal Plan v2.0 (Approved) 22.02.2023
R0083 and 83A Consolidated Party Impact Assessment Responses v2.0 PUBLIC 07.06.2023
R0083 and R0083A Preliminary Change Report v1.0 (Pre-Approval) 26.05.2023
R0083 and R0083A Preliminary Change Report v2.0 (Approved) 07.06.2023
R0083 and R0083A Consolidated Consultation Responses v1.0 PUBLIC 20.07.2023
R0083 and R0083A Final Change Report v2.0 (Post-Vote) 02.08.2023
Decision to approve REC Change Proposal R0083 Changes to Supply Number Format
Company Name
-
Review status
Review required
Improvements to ‘Failed to Deliver’ CSS Messages
Date of latest update
Type
Change
ID
R0080
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
Since CSS Go-Live a large number of messages have not been successfully delivered due to failures of CSS User's gateways, resulting in CSS exhausting the 12-hour retry period. This Change Proposal has been raised to explore and address this issue
Change Plan
Service Provider Impact Assessment close
Completed
Start:
09 Nov 2022Due:
25 Jan 2024Completion:
25 Jan 2024Party Impact Assessment trigger
Completed
Start:
25 Jan 2024Due:
02 Feb 2024Completion:
02 Feb 2024Party Impact Assessment close
Completed
Start:
02 Feb 2024Due:
23 Feb 2024Completion:
23 Feb 2024Preliminary Change Report and Consultation issued
Completed
Start:
23 Feb 2024Due:
10 May 2024Completion:
10 May 2024Consultation close
Completed
Start:
10 May 2024Due:
03 Jun 2024Completion:
03 Jun 2024Responsible Committee Decision
Completed
Start:
24 Jul 2024Due:
31 Jul 2024Completion:
31 Jul 2024Final Change Report Issued
Completed
Start:
03 Jun 2024Due:
24 Jul 2024Completion:
19 Jul 2024Impacted Consumers
Impacted REC Services
Impacted REC Parties and Market Participants
Status
Implementation Date
27 June 2025
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed solution summary
- As a Consumer, I want the Switching process to work successfully, so that I can switch Energy Supplier without delays or issues.
- As the CSS Provider I want the messages I send to CSS Users to be received and processed successfully, so that there is no interruption to the Switching process or the Consumers’ Switching experience.
- As the CSS User I want to receive CSS messages in a timely manner following any outage of my own gateway or systems, so that there is no interruption to the Switching process or the Consumers’ Switching experience.
Proposed Solution Document
Document title
R0080 - Solution Development Report 11.01.2024
Archive
Off
Document title
CSS Interface Design Specification v8.9.0 R0080 - REDLINE
Archive
Off
Document title
CSS Failed To Deliver Detailed Design (R0080) v1.3 (19.06.2024)
Archive
Off
Document title
Business Data Validation Rules v1.5.0 R0080 - REDLINE
Archive
Off
Document title
Schedule 24_Switching Data Management v1.2_R0080 Draft (19.06.2024)
Archive
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Problem Statement
Following an unexpected or extended period of gateway outage for a CSS User, there is currently no automated process to resend any CSS messages from the CSS Provider that were triggered during the period of outage. This results in the CSS Provider needing to manually correct any issues, which is time consuming and may affect Consumer Switches due to delays in messages being processed.
Stages Selection
SME
SME Role
Lead Technical Analyst
SME User
caroline.milner@capgemini.com
SME Role
Lead Assurance Analyst
R0080 - Change Proposal form
R0080 Onboarding document
R0080 - Change Proposal Plan (Approved) 16.01.2024
R0080 - Rebaselined Change Plan (26.04.2024)
R0080 - Initial Assessment Report (Approved) 16.01.2024
R0080 Consolidated Party IA Responses v1.0 (10.05.2024)
R0080 - Preliminary Change Report v1.0 (Published for Consultation) 10.05.2024
R0080 Consolidated Consultation Responses (19.06.2024)
R0080 - Final Change Report v2.0 (Approved) 31.07.2024
Company Name
-
Review status
Review required
EMR Settlement Limited - additional access to EES
Date of latest update
Type
Change
ID
R0078
Change Path
Priority
Urgent
No
Latest Update
29/09/23 - This change was implemented on 29 September 2023 as part of an Extraordinary REC Release
Summary
This Change proposal seeks to extend the access permitted in the Electricity Enquiry Service (EES) for Electricity Market Reform Settlement (EMRS) Limited to enable the completion of metering assessments and change of supply checks where Capacity Provider’s portfolio includes domestic Consumers.
Change Plan
SERVICE PROVIDER IMPACT ASSESSMENT ISSUED
Completed
Start:
26 Oct 2022Due:
07 Jul 2023Completion:
11 Aug 2023PRELIMINARY CHANGE REPORT AND CONSULTATION ISSUED
Completed
Start:
07 Jul 2023Due:
18 Aug 2023Completion:
18 Aug 2023FINAL CHANGE REPORT ISSUED
Completed
Start:
18 Aug 2023Due:
08 Sep 2023Completion:
08 Sep 2023RESPONSIBLE COMMITTEE DECISION
Completed
Start:
08 Sep 2023Due:
15 Sep 2023Completion:
15 Sep 2023Status
Implementation Date
29 September 2023
Implementation Status
Date Raised
Fuel
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed solution summary
- As EMRS I want to have an appropriate understanding of the portfolio so that I am able to complete metering assessments and checks on Switches so that I can fulfil my role.
- As the EES Provider I want to be able to provide access to EMR Settlement Limited as set out in the Data Access Matrix.
Proposed Solution Document
Document title
R0078 - Electricity Data Access Matrix v3.3 (17.08.2023)
Archive
Off
Problem Statement
EMRS are experiencing an increasing occurrence of domestic Consumers being included in Capacity Provider portfolios. Currently they have limited availability to data on domestic Consumers, making the completion of assessments and checks difficult. Access to data held in the EES for domestic metering points will enable EMRS to complete these tasks that are required to appropriately include domestic provider contributions in the overall view of the Capacity Market.
Stages Selection
SME
SME Role
Lead Technical Analyst
R0078 Change Proposal Form
Redlined DAM (Provided by the Proposer)
R0078 Change Proposal Plan v1.0 (Approved) 18.07.2023
R0078 Initial Assessment Report v1.0 (Approved) 18.07.2023
R0078 Preliminary Change Report
R0078 - Non Confidential Consultation Responses
R0078 - Final Change Report v2.0 post vote
Company Name
-
Review status
Review required