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
Schedule 30 - Resolution of Consumer Facing Switching and Billing Issues 2.1
– Implemented on
Loading...
Schedule 30 - Resolution of Consumer Facing Switching and Billing Issues 2.0
– Implemented on
Loading...
Schedule 30 - Resolution of Consumer Facing Switching and Billing Issues 1.1
– Implemented on
Loading...
DNOs notifying Suppliers about Crossed Meters
Date of latest update
Type
Change
ID
R0076
Priority
Urgent
No
Latest Update
28/05/2024 - R0076 has been withdrawn as the issue was addressed through R0121 - SDEP Review Improvements (1) - Process Types. The adoption window is closed.
Summary
The Change seeks to introduce a way for the DNOs to raise a crossed meter issue with the Supplier, in a way that directly feeds into the Supplier’s list of crossed meter issues. The supplier will be required to feed back progress to the DNO who has raised the issue with them, this should be defined as a process within the REC.
Impacted Consumers
Impacted REC Documents
Impacted REC Services
Impacted REC Parties and Market Participants
Status
Implementation Status
Date Raised
Fuel
Date of Update to Priority
Solution Development
Stages Selection
R0076 - Change Proposal Form v1.0
Company Name
-
Review status
Review required
Schedule 30 - Resolution of Consumer Facing Switching and Billing Issues 1.0
– Implemented on
Loading...
REC V3.0
Date of latest update
Type
Change
ID
R0041
Change Category
Urgent
Yes
Latest Update
_
Summary
_
Change Plan
Legal text baselined
Completed
Start:
10 Apr 2022Due:
13 May 2022Completion:
13 May 2022Final Change Report Issued
Completed
Start:
13 May 2022Due:
20 May 2022Completion:
20 May 2022Responsible Committee Decision
Completed
Start:
20 May 2022Due:
07 Jun 2022Completion:
07 Jun 2022Authority Determination (Original)
Completed
Start:
07 Jun 2022Due:
20 Jun 2022Completion:
17 Jun 2022Authority Determination (revoked and re-issued)
Completed
Start:
20 Jun 2022Due:
29 Jun 2022Completion:
29 Jun 2022Impacted Consumers
Impacted REC Documents
Impacted REC Services
Impacted REC Parties and Market Participants
Status
Implementation Date
18 July 2022
Implementation Status
Date Raised
REC Decision Maker
Date of Update to Priority
Solution Development
Proposed solution summary
- As a Consumer, I want to be able to successfully switch my Energy Supplier with minimal delay or hassle, so that I can start to receive the service and tariff from my chosen Energy Supplier at the earliest opportunity.
- As the Authority, I want the necessary changes made to the Retail Energy Code to introduce the obligations, processes and provisions for the new switching arrangements, to enable the successful transition to enduring governance and operational arrangements.
- As a REC Party, I want to be clear on the obligations I need to meet and the processes I need to follow post CSS go live, to ensure my organisation is ready for the introduction of the new switching arrangements.
- As a REC Service Provider, I want to be clear on the obligations, processes and service standards that I need to meet, to ensure my organisation is ready for the introduction of the new switching arrangements.
Proposed Solution Document
Document title
REC V3.0 Baselined documents
Archive
Off
Document title
REC v3.0 Baselined documents (REC Portal)
Archive
Off
Problem Statement
Changes are required to the REC, to ensure the appropriate obligations, processes and provisions are defined within the REC at CSS go-live, enabling successful transition to enduring governance and operational arrangements developed as part of Ofgem’s Switching Programme.
Stages Selection
SME
SME Role
Lead Technical Analyst
SME User
beth.brown@capgemini.com
R0041 - Change Proposal Form
Letter from the Authority to the REC Code Manager - REC V3.0 Authority Change Proposal
R0041 - Change Proposal Plan v1.0 (Approved)
R0041 - Initial Assessment Report v2.0 (Approved)
R0041 - Final Change Report v3.0 (Post-Vote)
R0041 Authority Decision
Company Name
Ofgem
Review status
Review required
Erroneous Transfer Cancellations
Date of latest update
Type
Change
ID
R0030
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
Erroneous Switches (ESs) are currently being cancelled without a defined process or full audit trail. This Change Proposal seeks to introduce a defined process for Energy Suppliers to be able to cancel an ES in specific scenarios.
Change Plan
Solution Development
Completed
Start:
13 Jan 2022Due:
22 Apr 2022Completion:
22 Apr 2022Party Impact Assessment Issued
Completed
Start:
22 Apr 2022Due:
06 May 2022Completion:
06 May 2022Preliminary Change Report Issued
Completed
Start:
06 May 2022Due:
08 Jul 2022Completion:
08 Jul 2022Responsible Committee Review
Completed
Start:
08 Jul 2022Due:
19 Jul 2022Completion:
19 Jul 2022Consultation Issued
Completed
Start:
19 Jul 2022Due:
05 Aug 2022Completion:
05 Aug 2022Impacted Consumers
Impacted REC Documents
Impacted REC Parties and Market Participants
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 Consumer I want to receive my bills when expected, from the Supplier of my choice without delays caused by being switched incorrectly and not being resolved in a timely manner. As a Consumer, in the event that my Supplier has exited the market and my supply cannot be returned to my original Supplier, I want the Gaining ET Supplier to have the ability to terminate any ET process that has already been initiated so that I am able to choose my preferred Supplier and switch without delay or penalty.
- As a Consumer, if Energy Suppliers need to share my data to resolve a switching issue, I want Suppliers to share my personal data securely so that my data is protected.
- As an Energy Supplier, where appropriate, I need to be able to cancel an ET effectively and efficiently, so that I can bill my Consumers accurately and timely. As an Energy Supplier, where appropriate, I need to be able to cancel an ET so that I supply Consumers with whom I have a valid contract.
- As The Code Manager I need to be able to identify when an ET has been cancelled so that I have a clear audit trail and can monitor performance effectively.
Proposed Solution Document
Document title
R0030 Pre Consultation Solution Documents
Archive
Off
Document title
R0030 - Final Solution Documents
Archive
Off
Document title
R0030 - EMAR Change Set (Final)
Archive
Off
Problem Statement
Erroneous Transfers are being cancelled by Suppliers, which is currently not permitted under the REC. There is no consistent defined process or audit trail. In the event of a Supplier of Last Resort (SoLR) being appointed, or on a Change of Occupier at a premise, the Gaining Supplier currently has no way to formally cancel an ET after it has been initiated. This can cause Switching and/or Billing delays for Consumers whilst Energy Suppliers attempt to resolve an outstanding or open ET. For Energy Suppliers this can mean they are supplying Consumers with whom they have no Valid Contract, resulting in additional Guaranteed Standards of Performance (GSOP) Payments and increased Consumer dissatisfaction. The Performance Assurance Board (PAB) has no way to identify the difference between the process legitimately closing without resolution, and an Energy Supplier not meeting their obligations in the code to properly resolve an ET. As a result, the PAB are unable to differentiate the performance of Energy Suppliers between those that are closed down legitimately or those being closed inappropriately.
Stages Selection
SME
SME Role
Lead Technical Analyst
SME User
beth.brown@capgemini.com
Erroneous Transfer Cancellations - Change Proposal Form
R0030 - Consolidated Impact Assessment Responses
R0030 Change Proposal Plan v1.0 (Approved)
R0030 - Initial Assessment Report v1.0 (Approved)
R0030 - Preliminary Change Report v2.0 (Approved)
Non Confidential Consultation Responses
R0030 Final Change Report v2.0 (Post-Vote)
Company Name
Scottish Power
Review status
Review required