Ireland – Construction work for electricity power lines – The MaresConnect 750MW HVDC Interconnector System
Opportunity Score
Why this score?
Opportunity
0 / 100
Complexity
0 / 100
Deep Portfolio Analysis
Uses:
- Description
- Industries & Services
- Capabilities
- Market & Experience
- Certifications
Tender facts
- Contracting authority
- MaresConnect Limited (MCL)
- Country
- Ireland
- CPV
- 45232221 - Transformer substation +8 more
- Deadline
- Oct 31, 2026
- Estimated value
- EUR 1000M
AI tender analysis
Tenderwize prepares an AI analysis of this tender based on the TED notice and procurement documents: scope of work, key requirements, eligibility criteria, risks and questions for the buyer. The analysis is generated when the tender is opened.
Award Criteria
Lot 1
Lot 2
Lot 3
Lot 4
Buyer
Location
Dublin 2, IRL
Website
Buyer profile
Identifier
605488
Activity
Electricity-related activities
Lots (4)
LOT-0001
LOT 1A: EPC for HVDC Converter Stations
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.
EUR 1B
Estimated value
Location
Category
Award Criteria
Award details
Price is not the only award criterion and all criteria are stated in the Procurement Process documents.
Additional CPV codes
LOT-0002
LOT 1B: EPC for Irish 400kV AC Tail Substation
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.
EUR 1B
Estimated value
Location
Category
Award Criteria
Award details
The most economically advantageous tender in terms of the criteria stated in the specifications, in the invitation to tender or to negotiate or in the descriptive document.
Additional CPV codes
LOT-0003
LOT 2A: EPC for the HVDC Subsea and Underground Cable System, and for the associated HVAC Underground Cable System
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.
EUR 1B
Estimated value
Location
Category
Award Criteria
Award details
Price is not the only award criterion and all criteria are stated only in the procurement documents.
Additional CPV codes
LOT-0004
LOT 2B: EPC for the HVAC underground cable system in Ireland (Dublin)
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.
EUR 1B
Estimated value
Location
Category
Award Criteria
Award details
Price is not the only award criterion and all criteria are stated only in the procurement documents.
Additional CPV codes
Procurement Details
- Publication date
- 04 Oct 2026
- Languages
- English
Reference metadata
- Legal basis
- 32014L0025
Reference IDs
- Tender ID
- 681481-2026
Documents (2)
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Opportunity Score
Why this score?
Opportunity
0 / 100
Complexity
0 / 100
Deep Portfolio Analysis
Uses:
- Description
- Industries & Services
- Capabilities
- Market & Experience
- Certifications