Global transmission line length was estimated to have reached 5,767,158Ckm by the end of 2023 and is forecasted to grow to 6,669,519Ckm by 2028. The UK had 26,519Ckm of line length in 2023 and this is expected to rise to 27,161Ckm by 2028. Listed below are the five largest transmission projects by line length in the UK, according to GlobalData’s power database. GlobalData uses proprietary data and analytics to provide a complete picture of the global transmission line segment. Buy the latest transmission line project profiles here.

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1. Eastern Green Link I HVDC Line

The Eastern Green Link I HVDC Line is a 525kV part oh/ug line with a length of 196Ckm running from Torness to Hawthorn Pit Substation, South Hetton. The project is planned and is expected to be commissioned in 2029.

The Eastern Green Link I HVDC Line is an part oh/ug line. through 286412 circuit cable. Buy the profile here.

2. Bonnybridge – Newarthill Line

The Bonnybridge – Newarthill Line is a 400kV overhead line with a length of 17Ckm running from Bonnybridge to Newarthill. The project is proposed and is expected to be commissioned in 2028.

The Bonnybridge – Newarthill Line is an overhead line. through 286412 circuit cable. Buy the profile here.

3. Bramley – Fleet – Lovedean Line

The Bramley – Fleet – Lovedean Line is a 400kV overheadBramley to Lovedean. The project is planned and is expected to be commissioned in 2025.

The Bramley – Fleet – Lovedean Line is an overhead line. through 4226 circuit cable. Buy the profile here.

4. Elstree – St John’s Wood Line

The Elstree – St John’s Wood Line is a 400kV undergroundElstree to St John’s Wood. The project is proposed and is expected to be commissioned in 2029.

The Elstree – St John’s Wood Line is an underground line. through 4226 circuit cable. Buy the profile here.

5. Fawley – Lovedean Line

The Fawley – Lovedean Line is a 400kV undergroundFawley to Lovedean. The project is planned and is expected to be commissioned in 2024.

The Fawley – Lovedean Line is an underground line. through 4226 circuit cable. Buy the profile here.

For more details on the latest transmission line projects, buy the project profiles here.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData’s Power Intelligence Center provides detailed profiles of over 170,000 active, planned and under construction power plants worldwide, while its capacity and generation database provides historic and forecast power generation and generation capacity by technology as well as consumption, imports and exports for over 170 countries.