Greenlink

Greenlink is a subsea and underground electricity interconnector linking the power markets of Ireland and Great Britain, featuring a 190 km long, 500 MW high-voltage direct current (HVDC) submarine power cable between County Wexford in Ireland and Pembrokeshire in Wales. The project enhances electricity supply security, supports low carbon energy integration, and has the capacity to power approximately 380,000 homes, with associated converter stations at both ends of the cable.

Specifically in HVDC activities, Greenlink operates as a critical HVDC infrastructure asset, utilizing a 320 kV DC voltage system to transmit power efficiently under the sea. The interconnector facilitates bi-directional power flow and plays a significant role in balancing grid services between Ireland and Great Britain, thereby supporting the growth and integration of renewable energy sources across the connected markets.

IFA 1 & 2

IFA 1 and IFA 2 are subsea electrical interconnectors linking the United Kingdom and France, facilitating electricity exchange across the English Channel. IFA 2, commissioned in 2020, is a 204 km, 1 GW high-voltage direct current (HVDC) interconnector capable of exporting or importing enough power to supply approximately one million homes, playing a key role in delivering clean and secure electricity between the two countries.

Specifically in HVDC activities, IFA 2 represents National Grid's second HVDC link to France, providing a critical infrastructure for transferring zero-carbon energy, reducing carbon emissions significantly, and supporting the transition to a cleaner energy system in line with climate goals.

Elering

Elering is Estonia’s independent electricity and gas transmission system operator, responsible for ensuring a high-quality and reliable energy supply to Estonian consumers at all times. The company manages a network that includes thousands of kilometers of transmission lines and pipelines, connecting producers, network operators, and consumers into an integrated energy system.

Elering operates and develops cross-border electricity interconnections, notably including high-voltage direct current (HVDC) links such as the Estlink interconnections between Estonia and Finland.

AusNet

AusNet is Victoria's largest diversified energy network business, owning and operating more than $13 billion of electricity and gas network assets that connect communities with reliable, affordable, and sustainable energy across Australia. The company operates three core regulated networks: electricity distribution, gas distribution, and the state-wide electricity transmission network, serving around 1.6 million customers.

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AusNet's electricity transmission network is responsible for transporting electricity from generation sources via 50 terminal stations, 13,000 towers, and 6,500 kilometres of high-voltage powerlines throughout Victoria and connecting to networks in New South Wales, South Australia, and Tasmania.

HAEFELY

HAEFELY is a Swiss company founded in 1904 by Emil Haefely, renowned for its premium high voltage test equipment solutions serving manufacturers in the power, distribution, and transformer industries. Based in Basel, the company employs a highly qualified engineering team and operates a global network for sales, service, and customer support.

In the HVDC sector, HAEFELY provides advanced high voltage test equipment specifically designed for testing HVDC power transmission systems, supporting product development and quality assurance for cables, transformers, and switchgear.

Nemo

Nemo Link is a joint venture between National Grid Interconnector Holdings Limited, part of the UK’s National Grid Plc, and the Belgian Elia group. The company operates an interconnector that electrically links Belgium and Great Britain, enhancing grid reliability and providing access to sustainable energy sources.

Nemo Link's activities in HVDC involve the operation of subsea and underground high-voltage direct current cables, along with converter stations in both countries, enabling efficient and bidirectional transfer of electricity between the UK and Belgium.

DIgSILENT

DIgSILENT is an independent software and consulting company specializing in advanced solutions for modeling, analysis, and simulation of electrical power systems, including transmission, distribution, generation, and renewables. Their flagship product, PowerFactory, is widely recognized as a leading power system analysis tool, offering dynamic simulation, load flow, short circuit analysis, harmonics studies, and many more sophisticated applications for engineers and organizations worldwide.

In the HVDC sector, DIgSILENT provides software capabilities and consulting expertise for the modeling, simulation, and analysis of high voltage direct current systems, supporting planning and integration of HVDC technologies within complex grids as part of its comprehensive suite of power system studies.