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…
Past winners
| Winner | Date | Value | Category | View on TED |
|---|---|---|---|---|
| Slyman plant hire and groundwork | 13 Oct 2026 | €84.3K | Waste-treatment plant construction work | |
| Source Civil Ltd | 6 Oct 2026 | €312.1K | Water-main refurbishment construction work | |
| Murphy International Ltd | 2 Oct 2026 | — | Construction work for gas pipelines | |
| Kyte Powertech Limited | 1 Oct 2026 | €429.4K | Electrical installations for railways | |
| Coir Infrastructure Limited | 30 Sept 2026 | — | Roadworks | |
| Super Drain Limited | 30 Sept 2026 | — | Sewer cleaning services | |
| Slyman plant hire and groundwork | 29 Sept 2026 | €137.1K | Waste-treatment plant construction work | |
| GMC Civil & Mechanical Engineering Ltd | 29 Sept 2026 | — | Construction work for gas pipelines | |
| Murphy International Limited | 29 Sept 2026 | — | Construction work for gas pipelines | |
| Connaught Contractors Ltd | 24 Sept 2026 | €353K | Road construction works |
149 awards in 12 months · 132 different winners
Based on contract award notices on TED. Award data can be incomplete.
Only the original notice and the buyer's documents are legally binding.