Ireland – Construction work for electricity power lines – The MaresConnect 750MW HVDC Interconnector System

Ireland · TED (Tenders Electronic Daily)

Buyer

MaresConnect Limited (MCL)

Country

Ireland

Value

1.0bn EUR

Published

2026-09-30

Deadline

2026-10-31

Type

cn-standard

Status

Open to bid

Category

CPV 45231400

Description

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 Source Converter (VSC) technology and the configuration shall be a Symmetrical Monopole. The rated DC voltage shall be +/-320 kV. The link shall be bi-directional and shall have a rated power (receiving end) of 750 MW. The project is being procured as separate EPC (Turnkey) contracts, divided into four lots: LOT 1A: EPC for two HVDC Converter Stations; LOT 1B: EPC for one Irish 400kV AC Tail…

The buyer's description as published on TED (Tenders Electronic Daily), shortened. The full notice is at the source.

Around this tender

• Closes in 9 days, on 2026-10-31.
• MaresConnect Limited (MCL) has 3 notices on this site, 3 of them open now, the earliest published 2026-09-29. See them all.
• One of 156 open Construction & civil engineering tenders in Ireland on this site; where a value is published, the median is 1.1m USD.
• Work under the same CPV group (452) is open in 37 other countries: Germany (1165), France (358), Poland (192), Czechia (168), Romania (150) and 32 more.

Counted from the notices this site holds, which reach back about a month - not everything a buyer has ever published.

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About this record

This notice was published via TED (Tenders Electronic Daily) and indexed automatically. Figures and dates are reproduced as published at source; always confirm against the original before acting on a deadline.

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