Data and operations

These pages contain information for users of the National Transmission System (NTS). Here you will find out how we balance the NTS, the latest operational data and real time flow data, maintenance plans, information about gas quality, and entry and exit capacity details and reports.

Launch of National Gas Transmission Data Portal

We launched our new Gas Data Portal in July 2023 - please take a look and let us know if you have any feedback.

A wide view of National Grid workers and data display screens inside a GNCC office space

Gas query directory

To help you efficiently find the right person to talk to in relation to specific National Transmission System operational gas queries, we have developed the following contact list and directory. We have based it on the most common queries we receive from our customers. Its purpose is to make finding the right subject matter expert within National Gas, quicker and easier than ever before.

Please note that if your query relates to a home or domestic gas connection or meter exchange, please contact your network operator. You can find who your network operator is on the Energy Networks Association website.  

Download the directory