Greenlink Interconnector
Greenlink Interconnector operates a 500MW HVDC subsea electricity interconnector linking Ireland and Great Britain, providing regulated cross-border transmission capacity to energy market participants via Ofgem- and CRU-approved access rules. Owned by Equitix, Baltic Cable AB, and Mubadala.
- Company typePrivate
- Founded2020
- HeadquartersSaggart, Ireland
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Greenlink Interconnector does
Greenlink Interconnector Limited is a privately-held energy infrastructure company that owns and operates a 500MW (504MW nominal) High Voltage Direct Current electricity interconnector linking the national grids of Ireland and Great Britain. The ~190 km route comprises approximately 160 km of submarine cable across the Irish Sea and ~30 km of underground cable (25 km in Ireland, 5 km in Wales), using two +/- 320kV power cables plus a fibre-optic monitoring cable. It connects EirGrid's Great Island 220 kV substation in County Wexford, Ireland to National Grid's Pembroke 400 kV substation in Pembrokeshire, Wales, with two converter stations of ~1.85 hectares each handling DC-to-AC conversion. The asset became operational in February 2025 and was formally launched on 16 April 2025. Headquartered in Saggart, Dublin, with a small operational team of 11-50, the company doubles interconnection capacity between Ireland and GB and can power up to 380,000 homes at full capacity.
The company sells regulated interconnector transmission capacity to electricity market participants, with access rules and charging methodology approved by Ofgem (UK) and the Commission for Regulation of Utilities (CRU) in Ireland. Capacity allocation and availability are published through Nord Pool's Urgent Market Messages platform and Elexon's BSC Insight Solutions portal under REMIT regulations. Greenlink is owned by Equitix, a European infrastructure investment platform managing ~£13.8 billion AUM across 300+ projects in 24 countries, and Baltic Cable AB, the Swedish-German interconnector operator; Mubadala invested $200 million alongside Equitix in June 2026. Revenue economics are usage-based on capacity auctioned through these regulated channels, supporting cross-border electricity trading, renewable energy export/import, and grid balancing services between the Single Electricity Market (Ireland) and BETTA (Great Britain).
Greenlink Interconnector firmographics
Firmographics- Name
- Greenlink Interconnector
- Legal name
- Greenlink Interconnector LTD
- Website
- https://greenlink.ie
- Company type
- Private
- Founded year
- 2020
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Greenlink Interconnector operates a 500MW HVDC subsea electricity interconnector linking Ireland and Great Britain, providing regulated cross-border transmission capacity to energy market participants via Ofgem- and CRU-approved access rules. Owned by Equitix, Baltic Cable AB, and Mubadala.
- Ownership category
- akta.pro rank
Greenlink Interconnector industry classification
Industry- Product category
- Electricity Transmission Infrastructure
- NAICS
- Electric Bulk Power Transmission and Control (221121), Electric Power Transmission, Control, and Distribution (22112)
- SIC
- Electric Services (4911)
- akta.pro primary industry
- Cross-Border Interconnectors & Regional Transmission Coordination (EUADAAAB)
- akta.pro secondary industries
- HVDC Converter Stations & HVDC Transmission EPC (EUAEABAD), HVDC Cables & Overhead Lines (Subsea, Underground, Overhead) (EUADAMAB)
Keywords
Where Greenlink Interconnector is headquartered
LocationHeadquarters
- HQ city
- Saggart
- HQ country
- Ireland
- HQ region
- Europe
Offices3 records
Markets served
Greenlink Interconnector business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Infrastructure, Supply Chain, Operations, Personnel, Technology or R&D
Revenue model
- Interconnector Transmission Capacity: Revenue generated from providing regulated transmission capacity access to electricity market participants. Access rules and charging methodology are approved by Ofgem (UK) and CRU (Ireland). Capacity allocation and availability published via Nord Pool and Elexon REMIT platforms.
Go-to-market motion1 record
Distribution channels3 records
Marketing channels5 records
Greenlink Interconnector product offering
Product offeringCore offering
Greenlink Interconnector owns and operates a 500 MW (504 MW nominal) subsea and underground electricity interconnector that links Ireland's Great Island 220 kV substation in County Wexford to National Grid's Pembroke 400 kV substation in Pembrokeshire, Wales. The asset uses High Voltage Direct Current (HVDC) technology with two +/- 320 kV cables plus a fibre-optic monitoring cable across approximately 160 km of subsea route and 30 km of underground route, enabling bidirectional power flow between the Irish and British electricity markets.
Product overview
Greenlink Interconnector is a single unified electricity interconnector product consisting of HVDC subsea cables, underground onshore cables, and two converter stations. The core product is the 500 MW electricity interconnector linking Ireland and Great Britain, with the converter stations converting DC to AC for connection to national grids. The fibre-optic cable enables monitoring, control, and safety communication between converter stations. The product provides bidirectional electricity flow capability for energy trading, security of supply, and renewable energy integration between the two countries.
Differentiator
Problem solved
Functional benefit
Products and services
- Greenlink Interconnector A 500 MW (504 MW nominal) subsea and underground electricity interconnector connecting EirGrid's Great Island 220 kV substation in County Wexford, Ireland, to National Grid's Pembroke 400 kV substation in Pembrokeshire, Wales. Provides bidirectional electricity transmission capacity to transmission system operators and energy market participants for cross-border trading, security of supply, and renewable energy integration.
Quantifiable outcome
- Powers 380,000 homes
- +4 more outcomes
Companies that use Greenlink Interconnector
Customer profileNamed customers2 records
Segments3 records
Ideal customer profiles3 records
Greenlink Interconnector technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Greenlink Interconnector partnerships and signals
Strategic signalPartnerships
Six partnerships are on record, tiered core.
- OfgemcoreOfgem is the UK gas and electricity markets regulator that approved Greenlink's Access Rules and Charging Methodology. Ofgem oversight ensures regulated access to the interconnector capacity for UK market participants.
- CRU (Commission for Regulation of Utilities)coreCRU is Ireland's independent energy regulator that approved Greenlink's Access Rules and Charging Methodology. CRU oversight ensures regulated access to the interconnector capacity for Irish market participants.
- EirGridcoreEirGrid is Ireland's transmission system operator responsible for the electricity grid. Greenlink connects to EirGrid's Great Island substation in County Wexford, enabling cross-border electricity flows with Great Britain.
- National GridcoreNational Grid is Great Britain's transmission system operator. Greenlink connects to National Grid's Pembroke substation in Pembrokeshire, Wales, enabling cross-border electricity flows with Ireland.
- Nord PoolcoreNord Pool operates the Urgent Market Messages (UMM) platform where Greenlink publishes interconnector availability and capacity data for market transparency under REMIT regulations.
- ElexoncoreElexon manages the Balancing and Settlement Code (BSC) Insight Solutions Portal where Greenlink publishes detailed operational data and interconnector status reports.
Scale indicators7 records
Recent moves5 records
Expansion highlights5 records
Greenlink Interconnector competitors and assessment
Company assessmentDirect peers
- Moyle Interconnector Ltd: Moyle is a 500 MW HVDC subsea interconnector between Scotland and Northern Ireland—an unusually close capacity and technology match to Greenlink and a relevant analogue for Irish-GB interconnection.
- BritNed Development Ltd: BritNed is a 1 GW HVDC subsea interconnector between the UK and the Netherlands with comparable revenue model (regulated capacity auctions, dual regulator oversight). Closely comparable operational and commercial profile to Greenlink.
- Baltic Cable AB: Baltic Cable AB owns and operates the Sweden-Germany HVDC interconnector and is a co-owner of Greenlink. It is the most directly comparable peer: same HVDC subsea business model, regulated European cross-border transmission, and shared ownership.
- ElecLink Limited: ElecLink operates a 1 GW HVDC interconnector through the Channel Tunnel between the UK and France, sharing Greenlink's regulated interconnector business model and route characteristics.
- IFA (Interconnexion France-Angleterre): IFA is a 2 GW HVDC subsea interconnector between France and England owned by National Grid and RTE. A comparable large-scale regulated HVDC subsea asset with capacity allocation via market platforms and dual-regulator oversight.
- Nemo Link Ltd: Nemo Link is a 1 GW HVDC interconnector between the UK and Belgium using similar subsea cable and converter station technology. Highly comparable in technology, ownership structure (National Grid and Elia JV), and regulated merchant-driven revenue model.
Broad incumbents
- National Grid Interconnectors: National Grid operates multiple UK interconnectors (IFA, BritNed via JV, IFA2, Nemo Link) connecting GB to neighboring markets. Broad incumbent comparable on interconnector operations, regulated access, and connection to the GB grid (which Greenlink uses).
- EirGrid plc: EirGrid is Ireland's TSO and Greenlink's grid counterparty. Broad-incumbent comparable in that it operates the wider Irish transmission system, sets access rules, and governs grid interconnection for renewable integration—the same structural adjacencies Greenlink monetizes.
Emerging players
- NeuConnect Britain Ltd: NeuConnect is a 1.4 GW HVDC interconnector under development between the UK and Germany. Comparable as an emerging HVDC subsea interconnection project with similar institutional investor and regulated framework profile.
- Celtic Interconnector (EirGrid / RTE): The Celtic Interconnector is the planned ~700 MW subsea HVDC link between Ireland and France under development by EirGrid and RTE. Comparable as an EU/Irish interconnector route with overlapping customer (EirGrid) and regulator (CRU/Ofgem-adjacent EU bodies).
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks7 records
Key highlights7 records
Customer concentration
Greenlink Interconnector social profiles
Digital presenceGreenlink Interconnector compliance and trust
Trust signalCompliance1 record
Greenlink Interconnector financial estimates
Financial estimateRevenue estimate
Valuation estimate
Greenlink Interconnector leadership team
Management profileNumber of profiles
Profiles5 records
Greenlink Interconnector funding detail
Funding detailFunding overview
Funding rounds3 records
Investors3 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Greenlink Interconnector M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Greenlink Interconnector
What does Greenlink Interconnector do?
Greenlink Interconnector owns and operates a 500 MW (504 MW nominal) subsea and underground electricity interconnector that links Ireland's Great Island 220 kV substation in County Wexford to National Grid's Pembroke 400 kV substation in Pembrokeshire, Wales. The asset uses High Voltage Direct Current (HVDC) technology with two +/- 320 kV cables plus a fibre-optic monitoring cable across approximately 160 km of subsea route and 30 km of underground route, enabling bidirectional power flow between the Irish and British electricity markets.
Is Greenlink Interconnector a public or private company?
Greenlink Interconnector is a private company. It is classified as venture growth investor backed and is currently operating.
When was Greenlink Interconnector founded?
Greenlink Interconnector was founded in 2020. It employs 11 to 50 people.
Where is Greenlink Interconnector based?
Greenlink Interconnector is headquartered in Saggart, Ireland, in the Europe region.
How does Greenlink Interconnector make money?
One revenue line is on record: interconnector Transmission Capacity.
Who are Greenlink Interconnector's main competitors?
Direct peers on record are Moyle Interconnector Ltd, BritNed Development Ltd, Baltic Cable AB, ElecLink Limited, IFA (Interconnexion France-Angleterre) and Nemo Link Ltd. Broad incumbents are National Grid Interconnectors and EirGrid plc. Emerging players are NeuConnect Britain Ltd and Celtic Interconnector (EirGrid / RTE).
Does Greenlink Interconnector have an API?
No public API is recorded for Greenlink Interconnector.
What industry is Greenlink Interconnector in?
Greenlink Interconnector's product category is Electricity Transmission Infrastructure. Its primary akta.pro industry code is EUADAAAB, Cross-Border Interconnectors & Regional Transmission Coordination, with a secondary code of EUAEABAD, HVDC Converter Stations & HVDC Transmission EPC. Its NAICS code is 221121 and its SIC code is 4911.