Our proposals in Suffolk

This page sets out our proposals as presented at our statutory consultation between 24 October and 18 December 2023. Although the consultation has now closed, this page has been left online for reference use.

In Suffolk, our proposals include:

  • a connection from the existing transmission network via the proposed Friston substation, including the substation itself. The proposed Friston substation already has development consent as part of other third-party projects. If the proposed Friston substation has already been constructed under another consent, only a connection into the substation would be constructed by Sea Link
  • a high voltage alternating current (HVAC) underground cable of approximately 1.7 km in length between the proposed Friston substation and a proposed converter station
  • a 2 GW high voltage direct current (HVDC) converter station up to 26 metres high plus external equipment (such as lightning protection and railings for walkways) near Saxmundham
  • a HVDC underground cable connection of approximately 10 km in length between the proposed converter station near Saxmundham, and a transition joint bay approximately 900 metres inshore from a landfall point where the cable transitions from onshore to offshore technology
  • a landfall on the Suffolk coast (between Aldeburgh and Thorpeness). 

Our proposals in Suffolk have been developed for Sea Link as a standalone project, but also include opportunities to co-locate infrastructure for up to two further projects at the converter station, along the cable corridors and at the landfall location.

Find out more about our proposals in Suffolk

Suffolk beach

Read more in our interactive project overview document

You can read about our proposals in Suffolk in more detail in Chapter 11 of our interactive project overview document

Map summarising the Sea Link statutory consultation proposals in Suffolk

Interactive map

View an interactive map of our proposals

Man and lady standing near van

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