The MaresConnect 750MW HVDC Interconnector System

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, landfall works (e.g., HDD), and underground cable installation to connect to the converter stations (GB and Ireland) and onto the HVAC transmission system connection point in GB. This lot also includes the inspection, maintenance, repair and spares management of the HVDC and HVAC cable systems which will be contracted under separate terms and conditions provided to candidates as part of the Procurement Process. The contract is on a fixed-price, lump-sum, turnkey (EPC) basis. (If applicable) separate agreements for the Early Works Contracts for the FEED and Enabling Civil Works: FEED - tender design of the cable system; Civil and structural Enabling Works for the cable system. This lot is for the design, engineering, procurement, manufacturing, installation, commissioning, and testing of the 400 kV AC cable systems to connect the converter station in Ireland to the transmission system connection point. This lot also includes the inspection, maintenance, repair and spares management of the HVAC cable systems which will be contracted under separate terms and conditions provided to candidates as part of the Procurement Process. In Ireland the HVAC Onshore Cable System is circa 2km. (If applicable) separate agreements for the Early Works Contracts for the FEED and Enabling Civil Works: FEED - tender design of the cable system; Civil and structural Enabling Works for the cable system.