The EirGrid East West Interconnector is a 500MW High Voltage
Direct Current Electricity and Fibre Optic Interconnector which
connects the Irish and British electricity Transmission systems.
Commercial trading of the Interconnector began in December 2012.
The Interconnector is approximately 260km in length, 187km of
which is subsea.
It is a modern Voltage Source Commutation type scheme, offering
a suite of valuable services to both Irish & UK transmission
The Interconnector is important to Ireland in terms of security
of supply, competitiveness and facilitate growth of renewable
The Interconnector was developed by EirGrid, a leading Irish
energy business, dedicated to the provision of transmission and
market services for the benefit of electricity consumers. It is an
Irish state-owned commercial company.