The purpose of this tool is to provide you with an indicative capital cost of connection when considering a direct connection to the National Grid transmission network.
It produces an indicative estimate of the cost of the connection asset works using costs incurred by National Grid in undertaking these types of works in the past. The specific transmission connection charges applicable will depend on the exact requirements of the connection and so the actual charges may differ from this estimate. If you want to discuss the specifics of your connection, please make an enquiry with us using the Enquiry Form.
Things to note in respect of the estimate:
the cost estimator is generic and does not specifically consider the transmission network in terms of any additional transmission reinforcement works.
It assumes there is no need to carry out any additional work. This will be determined at the point of application via technical studies
it assumes that the transmission connection works are straightforward, the connection design meets the requirements of the National Electricity Transmission Security and Quality Supply Standard and that the cable is installed where no abnormal ground conditions exist (i.e. no public highway/river crossings)
it assumes the route corridor for the cable circuit that extends beyond the existing substation is without obstructions/significant geological or topographical features
it assumes that we will be carrying out the transmission connection asset works on your behalf. Please note that at the point of connection it is possible for you to undertake this work yourselves
it assumes that your equipment will be compliant with the various industry standards and Grid Code requirements
it assumes that land and space is available at an existing substation site and therefore the indicative cost is exclusive of any land purchase or consent requirements
the costs of securities are not included within this tool and you may be liable for additional costs as part of your connection.
The data within the cost estimator is updated annually so please note that the indicative cost is accurate for the present financial year alone. Based on the maturity of your requirements at this stage we have had to base our assumptions on our standard solution in accordance with the Customer Use System Code (CUSC) definition of Ownership Boundary. This may need adjustments to reflect the true position at the point of application.
While we use reasonable endeavours to ensure that the cost estimator and related information is accurate, we do not warrant, and do not accept any responsibility or liability for the accuracy or completeness of the content or for any loss which may arise from reliance on the indicative cost or related information.
The cost estimator and network capacity map give a general illustration of capacity and costs to apply to connect to the transmission network in England and wales.
The network capacity map identifies where constraints exist. It is intended to give an indicative view and should not be relied upon to assess the network capacity or terms of a specific connection. While we use reasonable endeavours to ensure that the network capacity map and related information is accurate, we do not warrant, and do not accept any responsibility or liability for the accuracy or completeness of the content or for any loss which may arise from reliance on the network capacity map or related information.
Legal disclaimer: we have developed the guides to prices and timescales to assist you with connections applications. They give a general illustration of connections cost and time to connect only and cannot be relied upon to assess the terms of connections for specific premises.
Subject to the above, we shall not be liable to you in tort (including negligence) or otherwise, arising under or in connection with your use of the cost estimator or network capacity map for: (a) loss of profits; (b) loss of sales or business; (c) loss of agreements or contracts; (d) loss of anticipated savings; (e) loss of or damage to goodwill; or (f) any indirect or consequential loss.
Estimated build cost This is the estimated build cost for National Grid Electricity Transmission.
Please contact us to discuss options for connecting this configuration.
This table shows an indicative estimate cost of connection should you choose to defer the date of connection.
Summary of additional costs/charges These costs are annual charges.
Site Specific Maintenance
Transmission Running Cost