Technical Studies

Delivering the best design

We have designed the interconnector to the highest industry standards and to deliver optimal efficiency when it comes online in 2024. The design also takes into account ways to minimise environmental impacts during construction and operations by ‘building-in’ best practices and mitigation measures from an early stage.

Subsea electricity interconnectors are a well-proven technology for the long distance transport of electricity. However, it matters how the interconnector is built to ensure that the transport of electricity is as efficient as possible. To date, numerous independent technical studies have been completed to evaluate the available technologies and provide cost-benefit analyses for each. Links to these studies are provided below.

Technical optimisation

GridLink will comprise a High Voltage Direct Current (HVDC) cable. This reduces energy losses and, therefore optimises the efficiency and minimises the costs of transporting electricity.

The cable will connect to converter stations at each end. The purpose of the converter stations is to transform the transported electricity from HVDC to High Voltage Alternating Current (HVAC) to feed into the national grids in each country.

Currently there are a range of alternative designs for cables and converter stations. The choice typically depends on the capacity of the interconnector, cable length, available space, performance requirements and costs. In making a final decision regarding the design of cables and converter stations we will be guided by previous experience of other interconnector projects and the findings from our own feasibility studies.

Please find links to the relevant independent technical studies below: