Celtic Interconnector
| Celtic Interconnector | |
|---|---|
| Knockraha, Ireland and La Martyre, France | |
| Location | |
| Country | Ireland, France | 
| Coordinates | 51°54′56.9″N 8°13′48.7″W / 51.915806°N 8.230194°W 48°26′35.5″N 4°11′50.3″W / 48.443194°N 4.197306°W | 
| General direction | north-south | 
| From | Knockraha, Ireland | 
| Passes through | Celtic Sea | 
| To | La Martyre, France | 
| Ownership information | |
| Partners | EirGrid, RTE | 
| Construction information | |
| Expected | 2026 | 
| Technical information | |
| Type | submarine cable | 
| Type of current | HVDC | 
| Total length | 575 km (357 mi) | 
| Power rating | 700 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 France. It will be the first such interconnector between the two countries.
Trial operation is planned to commence in 2026.
The director general of EirGrid stated in 2022 that the interconnector was arguably "the most important Irish infrastructure project for this decade".