Who should apply
Transmission connections are appropriate for a range of gas users, including:
gas distribution networks;
major industrial premises, such as power stations;
combined heat and power (CHP) schemes;
a few major energy-intensive industries; and
lower-flow gas users such as biomethane, small gas generators, shale and compressed natural gas.
We will be happy to discuss your projects requirements, please contact us to see how we can help with your connection enquiry
If you have an enquiry about a future hydrogen project please contact us to discuss this.
How to apply
Before applying for a connection to the NTS you should be aware of the following:
- The gas connections portal can provide a cost estimate for a Standard Design Connection (up to 57.3gwh/d.) This cost estimate can be used to apply for a connection.
- All Connection Applications should now be made using the Gas Connection Portal.
- You will need to register for access to the Gas Connection Portal. To do this please access the Gas Connection Portal.
- On registering you will be asked to agree to terms and conditions (which are attached below) to proceed. IT IS IMPORTANT TO VERIFY YOUR ACCOUNT VIA THE EMAIL LINK THAT YOU WILL RECEIVE IMMEDIATELY. PLEASE CHECK YOUR JUNK MAIL. THIS LINK WILL EXPIRE IN 24 HOURS.
- Please note that the first person to register a company in the Portal becomes the administrator for all users for that company.
- We recommend that you discuss any initial enquiries with us by contacting us before proceeding to application.
- Please contact us at [email protected]
- We recommend that you read the Gas Connections Application Guide below for further information.
The Gas Connection Portal will be used to submit all Connection Applications.
If you wish to submit a Connection Application, you are required to:
- read the terms and conditions below, and
- complete the Connection Application form within the Gas Connection Portal and,
- confirm that you have read the terms and Conditions, and
- click on “Submit Application” in the portal.
By clicking on “submit application” you are:
Download the Terms and Conditions
Download the application form (for guidance only)
Download the application guide
How long it takes
The period from clock start to issue offer depends on the type of offer to be made.
An initial connection offer (ICO) will be made within two months;
A full connection offer (FCO) requiring a conceptual design study will be made within six months.
A full connection offer (FCO) requiring a feasibility study will provide the feasibility study report within three months, and the offer six months following acceptance of the report by the customer.
How much it will cost
Initial connection offer (ICO)
Timescales to provide an ICO
Application for new or existing connection (entry, exit, or storage)
|Up to 2 months||£14,000|
Full connection offer (FCO) - non standard design
Timescales to provide an FCO
Entry & Storage
|Simple - Up to 6 months||£45,000*#||£45,000*|
|Medium - Up to 9 months|
|Complex - Up to 9 months||£406,000**||£406,000**|
Ramp Rate Study (if required)
* A Feasibility Study is not required for this type of connection
** A Feasibility Study, Ramp Rate Study, transient analysis, or all three may be undertaken depending on the customer requirements for this category type. Where a Ramp Rate Study is required the Application Fee for a Ramp Rate Study will be added.
# Where 20D gas quality monitoring is not required - Customers can potentially avoid the requirement to install NTS gas quality monitoring equipment 20 diameter lengths either side of the connection by providing their own monitoring equipment and process for ensuring non GSMR compliant gas does not enter the NTS to the satisfaction of National Grid, to be assessed on a case by case basis and appropriate for low volumes.
Full connection offer (FCO) - standard design
Timescales to provide an FCO
|Up to 3 months - Fixed fee||£13,300||£13,300||£13,300|
|Feasibility study additional 3 months||£14,000||£14,000||£14,000|
For more detail about the costs of the connection process, please download the current Statement for Gas Transmission Charges below on this page.