Skip to main content
  • REINFORCING IRISH AND WELSH TRANSMISSION INFRASTRUCTURE

    AND INCREASING EU AND REGIONAL ENERGY SECURITY

    REINFORCING IRISH AND WELSH TRANSMISSION INFRASTRUCTURE

    AND INCREASING EU AND REGIONAL ENERGY SECURITY

  • REINFORCING IRISH AND WELSH TRANSMISSION INFRASTRUCTURE

    AND INCREASING EU AND REGIONAL ENERGY SECURITY

    REINFORCING IRISH AND WELSH TRANSMISSION INFRASTRUCTURE

    AND INCREASING EU AND REGIONAL ENERGY SECURITY

Homepage

GREENLINK INTERCONNECTOR

Greenlink is a proposed interconnector linking the power markets in Great Britain and Ireland.

TECHNOLOGY: Greenlink will employ high voltage direct current voltage source converter (HVDC VSC) technology to link the two power systems. HVDC has been selected over an alternating current (AC) connection, because AC is technically difficult over this distance, HVDC has lower unit costs, can be much more easily controlled according to trading and market requirements, and has much lower losses. In addition the Irish and GB grid systems are not synchronised and therefore can only be connected via HVDC. The VSC technology (as compared to older current source converters) requires less reinforcement to the AC grid at the connection points, as well as allowing very rapid change of flow direction and reactive power. 

This flexibility is highly valued by system operators when managing grid stability and in providing ancillary/system services. The connection between the new converter stations will all be underground and subsea cables with no new overhead lines.

PRE PLANNING: The development team is currently carrying out initial feasibility work for the Greenlink interconnector between Pembroke, Pembrokeshire, in Wales, and Great Island, County Wexford in Ireland. Throughout the pre planning phase of the project we will be consulting all key stakeholders to ensure that they can input into the development process. The project will require planning permission.

Latest News

Element Power can confirm that it has formally accepted a new 500MW connection agreement to Pembroke substation following the completion of a review process with National Grid.

Element Power has no plans to change its ongoing development work in respect of the proposed Greenlink interconnector following the recent decision by the UK the leave the EU.

In March of this year, Element Power the renewable energy developer behind the Greenlink project expressed its surprise and dismay at the regulator's minded to position in respect of the...