Search GES API using Meter Serial Number
Summary
This change seeks to enable searches of GES API by Meter Serial Number, which is enough information to enable the return of all meter-point data associated with the MPRN.
Latest update and next planned activity
Date of latest update
Latest Update
This Change was implemented on 04 April 2025.
Impacts Overview
Impacted Consumers
Gas
Domestic
Non-Domestic
Impacted REC Services
Gas Enquiry Service (GES)
Priority and rationale
Standard
Priority last updated on 29 May 2026
Solution development
No documents available.
Change Plan
Service Provider Impact Assessment start
Completed
Start:
18 May 2023Due:
04 Apr 2024Completion:
04 Apr 2024Service Provider Impact Assessment close
Completed
Start:
04 Apr 2024Due:
21 Jun 2024Completion:
18 Jun 2024Party Impact Assessment start
Completed
Start:
21 Jun 2024Due:
28 Jun 2024Completion:
28 Jun 2024Party Impact Assessment close
Completed
Start:
28 Jun 2024Due:
19 Jul 2024Completion:
19 Jul 2024Preliminary Change Report and Consultation published
Completed
Start:
19 Jul 2024Due:
26 Jul 2024Completion:
26 Jul 2024Consultation close
Completed
Start:
26 Jul 2024Due:
16 Aug 2024Completion:
16 Aug 2024Final Change Report published
Completed
Start:
16 Aug 2024Due:
20 Aug 2024Completion:
20 Aug 2024Responsible Committee Decision
Completed
Start:
20 Aug 2024Due:
28 Aug 2024Completion:
28 Aug 2024Original submission
Change details
Andrew Dawson - GB Group plc
18 May 2023
Change details
Search GES API using meter serial number
A consumer moving into new premises does not have any billing information. If the address held in GES is ambiguous or differs from that understood by the new occupier, the consumer may be unable to switch supplier. However, the consumer does have the serial number which is displayed on the meter and could be used to instigate the switching process.
New occupiers of residential or commercial properties may experience difficulties or be unable to switch suppliers.
To allow searches of GES API by meter serial number, which is enough information to enable the return of all meter-point data associated with the MPRN.
GBG Group's TPI customers are experiencing difficulties with switching consumers whose address details are ambiguous and who do not have previous billing details (MPxN) for the property. EES, the sister service to GES allows searching by MPAN. This change would more closely align the functionality of the two services
Impacts
Gas, Domestic Prepayment, Domestic Credit, Microbusiness, Small and Medium Enterprise (SME), Industrial and Commercial (I&C)
Switching experience, Trust and confidence
-
No details provided
No impact to the REC or schedules
No details provided
-
No details provided
-
Data Access Matrix
-
No details provided
-
Gas Enquiry Service
GES API change required
GES Users
All users of GES API and their customers will benefit
No details provided
n/a
No
No details provided
Priority & timing
No
-
Benefits to consumers will be realised as soon as the change is implemented
No
No details provided
-
Activity
Implementation Date has been updated to 28 Feb 2025.
caroline.milner, Orphaned SME: Lead Assurance Analyst have been allocated as SME.