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Live updates
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UIG allocation issue
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A to Z
Live updates
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UIG allocation issue
About us
About Xoserve
Our role and customers
What we do and who we work with
Our case studies
Explore how we underpin the smooth and reliable operation of the GB gas industry
Information for gas consumers
Advice for gas consumers and who to contact for help
Supplying services to Xoserve
Become an approved supplier, submitting invoices, our code of conduct
Strategy & governance
How we are governed
Information about how we are funded, governed and owned
Business plan
How we plan our budgets with customers, view our latest plan
Annual review
Get an update on our progress over the last financial year
Vision and strategy
Our vision for the future, strategic direction and objectives
Leadership
Xoserve Board
Steering the company strategically, ensuring strong governance and accountability
Xoserve Leadership Team
Proven leaders united by a collective passion for serving customers
Careers
Careers at Xoserve
Explore a career with us and view our latest vacancies
Products & services
Market entry/exit
Join/exit the gas market
Apply to participate in the gas market and the process for exiting
Market participant data
Market Domain Data (MDD)
Understand the market participant process, download the MDD document
Energy Identification Codes (EIC)
Apply for your unique ID in the EU Internal Energy Market (IEM)
Data services
Access to our data services
Connecting you to all our digital data services from one location
UK Link System
Connecting complex industry systems and accessing secure documents
Contact Management Service (CMS)
An online business-to-business service for managing contacts
Gemini System
A suite of online applications for managing the transport of gas
Data Discovery Platform (DDP)
Data visualisations for actionable insight
Gas Enquiry Service (GES)
An online service for accessing details about supply meter points
Information Exchange (IX)
A secure means of exchanging files
SwitchStream
An online tool to make new switching easier
Gas APIs
API services available to a range of customers
Service enhancements
Service Enhancements Programme
Enhancing and optimising the customer and user experience across our service estate
DSC support
Data Services Contracts (DSC)
DSC customer support
Update or make changes to your DSC contract, register or change your LSO
DSC extra services
Request specific or additional services under your DSC contract
DSC support
Customer Support team
Information on our Customer Support team and their constituency sessions
Change
Gas change
How we manage change
How we facilitate industry change, funding, view ChMC Change Budget
Change forums
Information about change forums
Change common queries
Questions that we regularly get asked about change
Customer changes
Customer change register
View the progress of customer change proposals
Change packs
Consulting on customer and industry change
Submit a change proposal
The application process for submitting a customer Change Proposal
UK Link releases
View the previous and current changes we’re making to UK Link
Gemini changes overview
An overview of all the current Gemini changes
Key projects
Project Trident
Modernising UK Link to future-proof the gas markets data infrastructure
Service Enhancements Programme
Enhancing and optimising the customer and user experience across our service estate
GRDA REC change
REC consultation responses
Retail Energy Code consultation responses, provided by Xoserve as the the Gas Retail Data Agent
Decarbonisation
Decarbonising gas
Decarbonisation Knowledge Centre
How we’re helping to facilitate the decarbonisation of gas
DeliveringDecarb
Our monthly newsletter covering all things decarbonisation
Decarbonisation forums
Explore and register for one or more of our decarbonisation forums
Decarbonisation projects
H100 Fife
A groundbreaking green hydrogen project led by SGN
Managing Different Gases
Exploring CDSP system impacts posed by decarbonisation scenarios
Real Time Settlement Methodology
A project to establish a fair, practical, and flexible billing system
Decarbonisation pillars
Hydrogen
Learn all about how hydrogen can decarbonise the UK's energy system
Biomethane
A renewable gas that can help decarbonise the natural gas grid
Blending gas
Mixing low-carbon gases such as hydrogen or biomethane with natural gas
Carbon capture and storage
Capturing industrial CO2 before it reaches the atmosphere
The future of gas
Learn about what the future of gas could look like in the UK
News & updates
News & updates
News
The latest industry news from Xoserve
Events calendar
Manage your diary with our annual events calendar
Live updates
View the latest notifications and status of industry issues
Planned outages
Our systems maintenance windows and outages
Issues Register
View the status of issues raised by customers
Learning Hub
Training & e-learning
Learning Hub
The central location for all your training needs.
Gemini Learning Management System
Get the best from Gemini with this range of e-learning materials
Help centre
Invoices
Invoice type, charges & VAT
Check your invoice with our charging statement documents
Credit Risk & Neutrality
Guidance on energy balancing and CDSP Credit Risk Management, neutrality and payment rules
File types and formats
Get help with understanding the file formats in your invoice
Supporting information files
How we use level 1 and 2 files to validate your invoice
Energy Price Guarantee (EPG)
Information about how Xoserve is supporting the Energy Price Guarantee
Supply points & metering
Submitting reads
How to submit reads, understand rejections and replacing a reading
Supply Point Administration (SPA)
Get help with SPA tasks for Shippers, Suppliers, IGTs and DNOs
Annual Quantity (AQ)
Find out your site’s AQ, how AQ is calculated, AQ correction process
M Number creation
How to create an M Number (MPRN) for a live supply point
Non-Standard Sites
Submission templates and response files for unique gas sites
Demand Attribution
Demand Estimation
Demand Estimation parameters and the timetable for producing them
NDM Nominations and Allocations
How we calculate NDM demand and the NDM Nomination Accuracy Report
Unidentified Gas (UIG)
How it’s calculated and shared out, National UIG charts
Support
How can we help?
View popular information, material and common queries about our services.
Raise a support request
Have a process query or technical issue?
Check an existing support request
Find out the status of an existing support request
Shipper and Supplier relationships
Information and processes for Shippers and Suppliers, with regards to their commercial relationships
Contact
Address and directions
Our office address and directions
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