The MaresConnect 750MW HVDC Interconnector System
- Buyer
- MaresConnect Limited (MCL), Dublin 2
- Country
- Ireland
- Estimated value
- €1,000,000,000
- Deadline
- 31 Oct 2026, 13:00 CET
- Published
- 29 Sept 2026
- Procedure
- Negotiated with prior call
- Contract type
- Works
- Lots
- 4
Categories
- 45231400 Construction work for electricity power lines
- 45232221 Transformer substation
- 45232220 Substation construction work
- 45314310 Installation of cable laying
- 31170000 Transformers
- 45251110 Nuclear-power station construction work
- 31214000 Switchgear
- 31682540 Substation equipment
- 31320000 Power distribution cables
From the original notice
The MaresConnect Project is a proposed 750 MW, 320 kV High Voltage Direct Current (HVDC) electricity interconnector linking Denbighshire, Wales and North County Dublin, Ireland. Developed by MaresConnect Limited, a joint venture between Foresight Group Holdings Ltd and Etchea Energy Nominees Ltd, the project will transmit electricity via approximately 240 km of subsea and underground cables between new converter stations on each side. It aims to enhance security of supply, market integration, and renewable energy utilisation between the Irish and GB grids. MaresConnect shall utilise Voltage…
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Only the original notice and the buyer's documents are legally binding.