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

Maresconnect Limited (MCL) · Ireland government procurement

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$1.1B
Est. Value
Active
Status

Opportunity Overview

This lot is for the design, engineering, procurement, manufacturing, construction, installation, commissioning, and testing of two (2) 750 MW, 320 kV VSC-based HVDC converter stations, one at each end of the interconnector, and the grid connection. The LOT 1A scope includes all civil works, AC-side switchyards, and auxiliary systems on a fixed-price, lump-sum turnkey (EPC) basis. This lot also includes the maintenance, repair and spares management of the two converter stations which will be contracted under separate terms and conditions provided to candidates as part of the Procurement Process. (If applicable) separate agreements for the Early Works Contracts for FEED and Enabling Civil Works: FEED - tender design of the two (2) 750 MW, 320 kV VSC-based HVDC converter stations; Civil and structural Enabling Works. | This lot is for the design, engineering, procurement, manufacturing, construction, installation, commissioning, and testing of one 400kV AC Tail Substation in Ireland, in the proximity of the Irish Converter Station. The LOT 1B scope includes a 400kV AC tail substation in the proximity of the converter station compound in Ireland. The scope includes all civil works, AC-side switchyards, and auxiliary systems on a fixed-price, lump-sum turnkey (EPC) basis. This lot also includes the maintenance, repair and spares management of the 400kV AC Tail Substation which will be contracted under separate terms and conditions provided to candidates as part of the Procurement Process. (If applicable) separate agreements for the Early Works Contracts for the FEED and Enabling Civil Works: FEED - tender design of the 400kV AC Tail Substation; Civil and structural Enabling Works. | This lot is for the design, engineering, procurement, manufacturing, installation, commissioning, and testing of the 320 kV HVDC cable system (symmetrical monopole) and the 400 kV AC cable system for the GB grid connection works. The scope includes route survey, subsea installation, burial,...

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Solicitation Details

Issuing agencyMaresconnect Limited (MCL)
CountryIreland
CategoryConstruction
Estimated value$1.1B
CPV45231400
PublishedSeptember 30, 2026
Procurement stageRequest for Proposal (RFP)
Response dueNot specified / rolling
StatusOpen — accepting responses
Official sourceView original notice
Last verifiedOctober 06, 2026

Source: Tenders Electronic Daily (TED), © European Union. Notice content reused under Commission Decision 2011/833/EU; editorial content licensed CC BY 4.0. GlobalGov is not affiliated with the European Union.

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