Britain’s clean energy system achieves historic milestone in 2019!

Capacity

On these pages you will find out more about how the National Transmission System (NTS) handles entry and exit capacity, including how to bid for entry capacity and apply for exit capacity. You will also be able to retrieve current and historical capacity data on these pages.

Partial view of a gas industry site with grass in the foreground and a blue sky in the background

Entry capacity

This page provides an overview of entry capacity including the types of capacity available, the different types of auctions, and the responsibilities of users and National Grid.

Find out more

Two industrial work sites at dusk

Exit capacity

This page provides an overview of exit capacity including the types of capacity available, the different types of applications, and the responsibilities of users and ourselves.

Find out more

A close up image of a gas furnace blower

Capacity methodology statements

Gas Transporter Licence capacity methodology statements, associated consultations, documents, and planned industry workshops.

Find out more

Latest capacity update

The Quarterly System Entry Capacity (QSEC) auction will open on the 18th March 2019

Capacity gives shippers the right to flow gas on and off the National Transmission System (NTS), and so capacity is often also referred to as ‘rights’ or ‘entitlements’. A shipper needs to buy one unit of capacity in order to flow one unit of energy on or off the system. This is known as the ‘ticket to ride’ principle. Units for both capacity and energy are in kWh/day.

 

Gemini contingency arrangements

Here you will find guidance on the Gemini Code contingency arrangements should a failure of the Gemini system occur. The processes detailed on here should only be followed when we have declared a Code contingency.

When contingency arrangements are being used, news updates will be provided via the standard communications channels:

For Gemini training materials and operational processes, please go to the Xoserve website. You can find more about Gemini contingency on the Joint Office Website.

Processes to be followed and proforma to be used in the event of a Gemini Code contingency are located here:

Download the Gemini Code Contingency Guidelines document

 

Proformas

Multiple pieces of piping stacked on top of each other with a clouded over sky in the background

Charging

To find out more about charges and how those charges are determined, please refer to the Charging pages.

Find out more