Working with industry to evolve the Enquiry Services
Working with industry to evolve the Enquiry Services
Working with industry to evolve the Enquiry Services
The services provide important industry data that supports key processes, such as switching energy suppliers and resolving customer queries. When the services work well, they create a smoother, more reliable experience for everyone using the energy market.
As demand for these services grows and more organisations need access to industry data, we’re updating the services to make sure they remain reliable, consistent and ready to meet future market needs.
The Enquiry Services Evolution project brings together improvements to both the Gas Enquiry Service (GES) and the Electricity Enquiry Service (EES). The aim is to provide one consistent experience for users across both gas and electricity through a coordinated, cross-fuel approach.
Our approach
We are updating the Enquiry Services to take advantage of improvements in technology, cybersecurity, resilience, availability, and service delivery. This will be done with minimal impact to data interfaces.
The current services have supported the market well, but they are becoming harder to update and improve. By modernising them, we can maintain the reliable service users expect while making it easier to introduce future improvements as industry needs change. The project covers both the Gas Enquiry Service and the Electricity Enquiry Service. Our aim is to create a more consistent experience for users across both gas and electricity.
Gas goes first. We will start with the Gas Enquiry Service because it has been operating reliably since 2022, making it the best place to begin. We will use what we learn from the gas transition to help deliver the rest of the project, reducing risk and providing a proven approach for users.
Electricity is planned alongside it. The Electricity Enquiry Service is also within the scope of this project. Decisions on how it will be delivered are expected during 2026.
Where we are in the journey
Discovery
June 2026 - December 2026
Project launch
Engagement via workshops
Delivery approach for EES confirmed
GES gateway opens
Late 2026
Expect a period of parallel running between existing and new arrangements
GES go-live
Q3 2027
The updated Gas Enquiry Service is expected to go live
EES development
Mid-2027 onwards
Further details to be confirmed as the plan develops
We’re at the Discovery stage right now. The above dates are a guide. We’ll keep you updated as plans are confirmed.
What does it mean for users?
Your service stays the same. This work doesn’t change who uses the service, and it doesn’t change the data you get. We will maintain the same data interfaces. You’ll keep getting the same data, the same way, as you do now.
Initially, the change is about how enquiry data is stored and accessed behind the scenes. Beyond that, it is about improving the user experience and providing the headroom needed to accommodate future services and new industry entrants.
How does it benefit industry?
The Enquiry Service are an essential industry service which must evolve to meet changing demands and to ensure it continues to be fit for purpose. The new services will deliver:
- A modern, flexible platform that is easier to expand and maintain, using up-to-date digital technologies.
- Better security to protect data, maintain GDPR compliance, and keep systems safe from cyber threats.
- Greater reliability, with fewer planned outages and better service availability.
- Optimised performance, particularly during busy periods.
- Better value for the industry and consumers.
- Greater flexibility for the future by using widely available technology and protecting industry-owned intellectual property.
- Better alignment of customers’ registration records across both gas and electricity.
What's coming up
Get involved in future engagement and play your part in evolving the Enquiry Services.
Who should be involved?
If you use the Enquiry Services, we’d like your feedback. Your input will help us improve the service so it better meets users’ needs. This includes:
- Gas and electricity suppliers
- Meter operators, gas transporters and metering parties
- Energy consultants and third-party intermediaries
- Distribution Network Operators and Independent Network Operators
- IT providers and anyone who uses Enquiry Services data in their work
Engagement to date
In May 2026, we ran a series of workshops with people from across the industry. Over two weeks, we asked for honest feedback about what works well, what could be improved, and what people need from the service in the future.
Thank you to everyone who took part. Your feedback has helped shape the next stage of this work.
Coming up
From summer 2026, we’ll be expanding our engagement with Enquiry Services users. We’ll run more workshops, share regular updates, and hold open sessions where you can ask questions and give feedback.
Register your interest to receive updates and invitations to take part.
We’ll be sharing:
- More workshops for Enquiry Service users, including organisations that were not involved in the May workshops.
- Details for API users on technical requirements and development.
- More information about the future Electricity Enquiry Service, including how it will be delivered and when.
- FAQs, guidance and technical information to help your organisation prepare for future changes.
Any questions?
Got a question or suggestion? We’d love to hear from you.
Sign up to get involved
Tell us a little about yourself to receive project updates, invitations to workshops and events, and technical information for your team.
We’ll only contact you about opportunities related to evolving the Enquiry Services.
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