---
title: "LirIC EPCI HVDC Interconnector Converter Stations"
ocid: "ocds-h6vhtk-04e9a2"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-04e9a2"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-04e9a2.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-04e9a2.json"
source: "Find A Tender Service"
current_stage: "Tender"
buyer: "TI LIRIC LIMITED"
published: "2025-05-23"
---

# LirIC EPCI HVDC Interconnector Converter Stations

Buyer: TI LIRIC LIMITED  
Current stage: Tender  
OCID: ocds-h6vhtk-04e9a2

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## Summary

TI LirIC Limited, a public authority under sub-central government, is conducting an active tender process for the LirIC EPCI HVDC Interconnector Converter Stations. This project involves the procurement of Engineering, Procurement, Construction, Installation, and Commissioning (EPCI) for converter stations connecting the electricity networks of Scotland and Northern Ireland. The competitive flexible procedure is being managed through Delta eSourcing, with a deadline for expressing interest on 20th June 2025. The procurement comprises multiple lots, including a complex mix of high voltage infrastructure and associated civil and building works, expected to reach financial close by Q3 of 2027. The project entails significant investments, totaling approximately £544 million, with opportunities for contracts commencing in March 2026.

This tender represents a substantial opportunity for businesses within the fields of engineering, construction, and utilities, particularly those experienced in high voltage infrastructure projects. Companies specialising in power converter technologies, electricity distribution, and high voltage construction are well-suited to compete. The initiative supports cross-border electricity links, fostering potential long-term partnerships and market expansion in the energy sector. Large-scale projects like this can drive business growth by securing high-value contracts and establishing a foothold within a significant infrastructure initiative in the UK and Irish markets.

## Notice

This Tender Notice coincides with the launch of the procurement process for Engineering, Procurement, Construction, Installation and Commissioning (EPCI) for the Converter Station works in relation to the LirIC HVDC Interconnector located between Scotland and Northern Ireland (NI). This Tender Notice is linked to a Request to Participate event in the Delta eSourcing platform where potential bidders are asked to provide certain information followed by an indication of the Lot they wish to bid for. Previous publications This Tender Notice follows the UK3 Planned Procurement Notice published on 5 March 2025. Reference: 2025/S 000-007974 TI LirIC Limited is a wholly owned subsidiary of Transmission Investment (TI), a leading UK-based energy and utility investment platform. TI is part of TAQA Transmission, a subsidiary of the TAQA Group. The LirIC Project TI LirIC Limited is engaged in the development of an up to 700MW High Voltage Direct Current (HVDC) electricity interconnector project that will connect the Great Britain (GB) and Irish (I-SEM) transmission networks. This project is called the "LirIC" Project (https://tinv.com/intercon-projects/liric/). The project will link grid connection points in the GB and Northern Irish transmission grids. The LirIC interconnector 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 700 MW The LirlC Project components The main components of the LirIC Project will comprise: * Lot A Group (to which this Tender Notice relates): * HVDC to HVAC VSC Converter Stations in both Scotland and Northern Ireland with associated civil and building works; and *LOT B Group (under a separate Tender Notice in respect of the LirIC Project) * Two (2) 320kV HVDC Cables onshore and offshore between Scotland and Northern Ireland over a route of approximately 140km, plus * One (1) 400kV HVAC Cable connection from the Scottish converter station to the Scottish grid over a route of approximately 1km. NOTE: The works and services for Lot B Group are not being procured by means of this Tender Notice and bidders should refer to the separate publication. The Project has been awarded an 'in principle' cap and floor arrangement in Great Britain by Ofgem and a transmission licence in Northern Ireland. The Project is targeting a Financial Close in Q3 2027. Preliminary Market Engagement TI LirIC Limited has conducted Preliminary Market Engagement prior to publication of this Tender Notice and encourages further collaboration between OEM's and Construction Contractors to establish bidding arrangements in time for the next step of the Procurement Process (notably the Qualification Questionnaire). Any prospective bidder wishing to receive the final Pre-Tender bulletin should contact the contracting authority by email. Request to Participate (RTP) Respondents wishing to participate are requested to register in Delta eSourcing (via the link https://www.delta-esourcing.com/). The Link to the Request to Participate event for all Lotting options in Lot Group A can be found in this Tender Notice. Information relating to each Lot covered under this notice can be found below in this Tender Notice. Bidders will only be allowed to choose one Lot. Any questions relating to the RTP must be sent through the Delta message center. For the avoidance of doubt, TI LirIC Limited does not consider itself to be bound by the Procurement Act 2023 or any associated procurement legislation (together, "UK procurement legislation"). Accordingly, the procurement for the award of Converter Stations and Civil & Building Works as further described in this notice and any associated documents (the "Procurement") is not, nor does it purport to be, subject to UK procurement legislation. For the avoidance of doubt, interested suppliers are put on notice that the publication of this document and any other document that relates to this Procurement is published voluntarily and nothing in this document, or any other document that TI LirIC Limited publishes in relation to this Procurement should be construed as purporting to give rise to rights or obligations under UK procurement legislation. For more information about this opportunity, please visit the Delta eSourcing portal at: https://www.delta-esourcing.com/tenders/UK-UK-London:-Power-converters./83SUP8Q464 To respond to this opportunity, please click here: https://www.delta-esourcing.com/respond/83SUP8Q464

### Lot Information

[Lot A1] LirIC Converter Stations (excluding Civil & Building Works)

Two HVDC Converter Stations (at Hunterston and at Kilroot) to the specification highlighted in the scope. Includes Design, Supply, Installation, Testing & Commissioning of the VSC Converter Stations. It is envisaged that the contract will be made in stages with consideration of a Preferred Supplier Agreement (Capacity Reservation, FEED studies and EPCI Heads of Terms). Following the completion of the FEED the decision shall be taken on whether to proceed with the award of an EPCI contract for detailed design / engineering, construction and commissioning, and also the decision for the O&M scope. The EPCI contract shall not be subject to a separate Tender Notice.

[Lot A2] LirIC Converter Station Civil and Building Works

The Civils Design, Enabling, Civils and Building Works associated with the converter stations at Hunterston and at Kilroot. It is envisaged that the contract will be made in stages with consideration of an Early Contractor Involvement (ECI) arrangement and EPCI Heads of Terms). Following the completion of the ECI the decision shall be taken on whether to proceed with the award of an EPCI contract for detailed design and construction. The EPCI contract shall not be subject to a separate Tender Notice. TI LirIC Limited reserves the right to conduct a separate exercise to find a solution for each of the Hunterston and Kilroot civils and building works should an acceptable bid not be forthcoming from this tender exercise.

[Lot A] LirIC Converter Stations including Civil and Building Works

This is a combined solution of Lot A1 (Converter Stations) plus Lot A2 (Civil and Building Works). It is envisaged that the contract will be made in stages with consideration of a Preferred Supplier Agreement (Capacity Reservation, FEED/ECI studies and EPCI Heads of Terms). Following the completion of the FEED/ECI the decision shall be taken on whether to proceed with the award of an EPCI contract for detailed design / engineering, construction and commissioning, and also the decision for the O&M scope. The EPCI contract shall not be subject to a separate Tender Notice Additional credit in the evaluation criteria will be given to those bidders who bid for the Lot A combined solution (additional information on the evaluation criteria will be released with the ITT Instructions during the ITT stage) The estimated value of Lot A is the combined values of Lot A1 and Lot A2.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/025796-2025 |
| Notice type | UK4 - Tender Notice |
| Procurement type | Standard |
| Procurement category | Works |
| Procurement method | Open |
| Procurement method details | Competitive flexible procedure |
| Tender suitability | Not specified |
| Awardee scale | Not specified |
| All stages | Planning, Tender |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 23 May 2025 |
| Submission deadline | 13 Jun 2025 |
| Future notice date | 6 Mar 2025 |
| Award date | Not specified |
| Contract period | 1 Mar 2026 - 30 Sep 2032 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £453,000,000 |
| Lots value | £453,000,000 |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Active |
| Lots status | Active |
| Awards status | Not specified |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | TI LIRIC LIMITED |
| Locality | LONDON |
| Post town | Central London |
| Postcode | EC2V 7DA |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI3 Inner London - West |
| ITL 3 | TLI35 Westminster and City of London |
| Local authority | City of London |
| Electoral ward | Bassishaw |
| Westminster constituency | Cities of London and Westminster |
| Delivery location | TLM93 North Ayrshire and East Ayrshire, TLN06 Belfast |

## CPV Codes

### Divisions

- 31 - Electrical machinery, apparatus, equipment and consumables; lighting
- 45 - Construction work
- 50 - Repair and maintenance services

### Codes

- 31121110 - Power converters
- 31200000 - Electricity distribution and control apparatus
- 45000000 - Construction work
- 45231400 - Construction work for electricity power lines
- 45315400 - High voltage installation work
- 45317200 - Electrical installation work of transformers
- 50711000 - Repair and maintenance services of electrical building installations

## Release History

- 23 May 2025 at 09:05 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/025796-2025
- 23 May 2025 at 09:05 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/025797-2025
- 5 Mar 2025 at 10:05 - Planning - UK3 - Planned Procurement Notice - https://www.find-tender.service.gov.uk/Notice/007974-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/025797-2025
  23rd May 2025 - Tender notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/025796-2025
  23rd May 2025 - Tender notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/007974-2025
  5th March 2025 - Planned procurement notice on Find a Tender

## Notice URLs

- https://tinv.com/intercon-projects/liric/
- https://www.delta-esourcing.com
- https://www.delta-esourcing.com/
- https://www.delta-esourcing.com/respond/83SUP8Q464
- https://www.delta-esourcing.com/tenders/UK-UK-London:-Power-converters./83SUP8Q464
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-04e9a2. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-04e9a2.json.