Our response to coronavirus

Find out how we're working to keep the electricity and gas flowing reliably throughout the outbreak.
Read more

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

Please note that the Quarterly System Entry Capacity (QSEC) auction has now opened. The first bid window (15/03/2021) has now closed and the results can be viewed here.

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

Capacity auction proformas

PublishedName
Exit Capacity Buyback
NTS Exit Capacity Transfers
DADNEX
WDDSEC
RMTISSEC
DNO Flow Swap
WDDNEX
DRSEC
DADSEC
AMSEC
NTS Exit Offtake Flow Reductions
DONEX
DISEC
RMTNTSEC
QSEC

Capacity trading proformas

PublishedName
GC09 Annual Exit Capacity
GC06 Entry Capacty Trading
GC09 Enduring Annual Exit Capacity
GC07 Entry Capacity Buyback

Nominations and trades proformas

PublishedName
GE01_1 Noms and Renoms
GE01_4 EU Nominations and Renominations
GE01_2 Trades Confirmations
GE01_3 DM Position

EU 2018 capacity conversion

Name
Capacity Conversion

OCS/OPS bulk upload template

Name
OCS File Creator 2020
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