Delivery of large onshore electricity transmission projects
Our role is to ensure that new large onshore electricity transmission projects that are needed are delivered efficiently.
We do this through:
- regulating the delivery of these projects by incumbent Transmission Owners (TOs), via our Strategic Wider Works (SWW) mechanism; or
- introducing competition into the delivery of these projects.
We have recently published an update to our plans to introduce competitive tendering for onshore electricity transmission, available here.
We expect to consult on the needs case and our competition assessment for the Hinkley to Seabank SWW project later this summer. In that consultation we will also set out further thinking around options for introducing competition into the delivery of other new, separable and high value (£100m or over) projects.
One of the key decisions from our Integrated Transmission Planning and Regulation project, was that new, separable and high value onshore transmission assets should be competitively tendered. This is to ensure value for consumers, with potential reduced costs and increased innovation.
The process will build on our offshore transmission regime which grants licences on the basis of competitive tendering. The regime has led to considerable savings for consumers of between £600m and £1.2bn since its implementation in 2009.
We have been working to develop the legislation, policy and supporting documents that would enable us to tender onshore electricity transmission assets. Our previous consultations and decisions on our proposed Competitively Appointed Transmission Owner (CATO) regime are available in the ‘Publications and updates’ section of this webpage. We have also developed a quick reference guide to CATO policy development, which covers the key policy decisions we have already made. We are currently considering alternative options to CATOs for introducing competition into the delivery of onshore electricity transmission. We will take forward further development of the CATO regime once there is greater clarity on the timing of enabling legislation.
This page sets out information on the policy and processes around delivery of large onshore electricity transmission projects. If you're looking for information on other aspects of onshore electricity transmission, please refer to the transmission networks page.
If you can’t find the information you’re looking for, email us.