Celtic Interconnector

Celtic Interconnector
Knockraha, Ireland and La Martyre, France
Location
CountryIreland, France
Coordinates51°54′57″N 8°13′49″W / 51.9158°N 8.2302°W / 51.9158; -8.2302
48°26′36″N 4°11′50″W / 48.4432°N 4.1973°W / 48.4432; -4.1973
General directionnorth-south
FromKnockraha, Ireland
Passes throughCeltic Sea
ToLa Martyre, France
Ownership information
PartnersEirGrid, RTE
Construction information
Expected2028
Technical information
Typesubmarine cable
Type of currentHVDC
Total length575 km (357 mi)
Power rating700 MW
DC voltage± 320 kV

The Celtic Interconnector is a 700 MW high-voltage direct current (HVDC) submarine power cable under construction between the southern coast of Ireland and the north-west coast of Brittany. It will be the first such interconnector between the two countries.

Commissioning of the project is expected in spring 2028.

The director general of EirGrid stated in 2022 that the interconnector was arguably "the most important Irish infrastructure project for this decade".