Tarchon Interconnector Project
A nationally significant infrastructure project offshore. The promoter is consulting and preparing its application.
Free. We'll email you when it moves stage: consultation, submission, examination and decision.
Where it is in the process
- Pre-application
- Submitted
- Pre-examination
- Examination
- Recommendation
- Decision due
- Decided
What is proposed
A proposed electricity interconnector between Essex, in East Anglia, United Kingdom, and Niederlangen, in Lower Saxony, Germany. Within England and UK waters, the Tarchon Interconnector Project comprises the construction, operation and maintenance of an onshore Converter Station, onshore High Voltage Alternating Current (HVAC) cabling; onshore and subsea High Voltage Direct Current (HVDC) cabling; and associated infrastructure. The Converter Station will convert electricity from HVAC to HVDC and vice versa to allow for export and import and transfer of electricity to the National Electricity Transmission System (NETS). Approximately 5km of underground HVAC cabling will be installed to connect the proposed Converter Station to the NETS at the proposed East Anglia Connection Node Substation, east of Ardleigh in Essex. Approximately 15km of HVDC underground cabling will be installed to connect the Converter Station to a landfall site, located along the coastline, south of Harwich, Essex, where a transition joint bay will be sited for the transition of onshore cables and subsea cables. Approximately 230km (124 nautical miles) of new HVDC subsea cabling will be installed in UK waters.
Linked planning applications
Council consultations, related applications and requirement sign-offs that quote this project.
- 26/01426/OAPINS · Enfield · 8 April 2026
EN0210009 - Tarchon Interconnector Project - EIA Scoping and Consultation and Regulation 11 Notification
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