GE Vernova

GE Vernova is a global energy equipment and services company headquartered in Cambridge, Massachusetts, formed from the spin-off of General Electric’s energy businesses in 2024. With around 75,000 employees, GE Vernova’s technology helps generate about 25% of the world’s electricity, and the company is dedicated to accelerating electrification and decarbonization for a more sustainable energy future.

In high-voltage direct current (HVDC) systems, GE Vernova provides advanced grid solutions to enable long-distance power transmission, support renewable energy integration, and modernize electricity infrastructure for greater reliability and efficiency.

GEIRI/C-EPRI

GEIRI/C-EPRI (Global Energy Interconnection Research Institute/China Electric Power Research Institute) is a subsidiary of the State Grid Corporation of China, focusing on applied research into technologies for new energies and intelligent power grids, with expertise in High Voltage Direct Current Energy Transmission, Intelligent Sensing, High-End Electrical Materials, and Energy Storage.

In the HVDC sector, GEIRI/C-EPRI has completed multiple projects in China and since 2018 has entered the European market, where they provide engineering, manufacturing, supply, installation supervision, and commissioning services for HVDC systems including converter stations, as demonstrated by their participation in the BorWin6 980-MW project in the North Sea.

Hitachi Energy

Hitachi Energy is a global technology leader in electrification, driving a sustainable energy future with advanced power grid solutions and digital technologies. Headquartered in Switzerland, the company employs over 50,000 people across 60 countries and is investing billions to scale its R&D, manufacturing, and engineering capabilities.

Hitachi Energy is a major player in high-voltage direct current (HVDC) technology, delivering large-scale transmission systems that connect renewable energy sources to power grids worldwide, including recent milestone projects in India, the United States, and multi-terminal HVDC links in Europe and Australia.

Hyosung Heavy Industries

Hyosung Heavy Industries is a South Korean company established in 1962, specializing in the manufacture and supply of heavy electrical equipment such as transformers, switchgear, motors, and comprehensive power system solutions for energy production, transmission, and distribution. With a workforce of over 3,000 employees, the company is recognized for its advanced technology and innovative solutions across global energy and industrial markets.

In high voltage direct current (HVDC), Hyosung Heavy Industries provides HVDC transmission systems within its power system solutions portfolio, helping to enhance grid stability and enable efficient long-distance power transmission.

LS Electric

LS Electric Co., Ltd., founded in 1974 and headquartered in Anyang, Seoul, South Korea, is a global leader in power and automation solutions. The company provides a wide range of products and services including power transmission systems, power distribution, industrial automation, and railway solutions, serving markets in China, the Middle East, and Southeast Asia.

In the HVDC sector, LS Electric manufactures and supplies power transmission technologies and components essential for high-voltage direct current systems, supporting efficient and reliable energy transfer as part of their smart power solutions portfolio.

Mitsubishi Electric

Mitsubishi Electric is a leading global technology company specializing in advanced electrical and electronic systems for power transmission and distribution.

Mitsubishi Electric develops the HVDC-Diamond system, a modular multi-level converter-based, voltage source converter HVDC solution, offering scalable power delivery, fast responsiveness, and high reliability for efficient integration of renewable energy and asynchronous grid interconnection.

NR Electric

NR Electric is a global technology-oriented company specializing in solutions that enhance the safety, reliability, and efficiency of power generation, transmission, and distribution. The company is recognized as a leader in digital substation solutions and is one of the world's largest manufacturers of protection and control systems for power systems.

In HVDC, NR Electric provides comprehensive control and protection products and services for high-voltage direct current transmission, with experience ranging from ±500kV to ±800kV projects and extensive involvement in power electronics applications.

RXHK

RXHK is a leading international provider of high voltage power electronic solutions, specializing in complex power management challenges across electric utilities, renewable energy, industrial, and transport sectors. The company delivers turnkey and EPC solutions, offering system studies, design, procurement, construction, commissioning, and project management for major electrical infrastructure projects.

In the field of HVDC, RXHK provides advanced Voltage Source Converter DC transmission technologies and supports these with project maintenance solutions, establishing a reputation for successful delivery of complex high voltage direct current installations worldwide.

Siemens Energy

Siemens Energy is a global energy technology company headquartered in Munich, Germany, operating in over 90 countries and employing around 100,000 people. The company delivers products and services across the energy landscape, including power generation, renewables, transmission, industrial electrification, and storage, with a mission to support the energy transition towards a more sustainable and reliable energy system.

In HVDC (High Voltage Direct Current), Siemens Energy develops and supplies advanced transmission solutions and equipment, playing a key role in enabling efficient long-distance electricity transmission and integrating renewable energy into modern power grids.

Toshiba

Toshiba is a diversified Japanese multinational conglomerate with core businesses spanning energy systems, infrastructure, electronic devices, and digital solutions. The company is recognized globally for its technological expertise in power systems and has a long history of delivering advanced solutions across multiple industries.

Toshiba has been a pioneer in High Voltage Direct Current (HVDC) technology since the 1950s, providing HVDC systems, frequency converters, and advanced power electronics for long-distance power transmission and interconnection projects. The company has been involved in major HVDC projects, including undersea interconnections and large-scale cross-border links, utilizing both Line Commutated Converter (LCC) and Voltage Sourced Converter (VSC) technologies.

XJ Electric

XJ Electric Corporation is a leading enterprise in China’s power equipment manufacturing industry, focusing on five core business areas: UHV, smart grid, new energy, electric vehicle charging and battery swapping, and rail transit and industrial intelligence. The company provides a wide range of energy and power technology equipment and solutions, with products and services applied across China and more than 50 countries and regions globally.

In HVDC, XJ Electric offers a comprehensive portfolio that includes DC transmission converter valves, DC control and protection systems, DC simulation systems, and digital converter stations, supporting national and international HVDC transmission projects.

ABL Group

ABL Group is a leading global independent consultancy specializing in energy and marine services, focused on de-risking and driving the energy transition across renewables, maritime, and oil and gas sectors. With more than 1,800 professionals and offices in over 40 countries, ABL Group delivers technical solutions for safety, sustainability, engineering, and asset management throughout the lifecycle of projects worldwide.

Specifically in HVDC (High Voltage Direct Current), ABL Group provides expert consultancy and engineering support for the development and operation of HVDC projects, leveraging its multidisciplinary team to ensure reliability, risk mitigation, and successful implementation in complex offshore and energy infrastructure environments.

ACDC Transient

ACDC Transient is an independent consulting company specializing in high-voltage direct current (HVDC) technology and the grid integration of renewable energy systems. The company offers services such as grid studies, project support, electromagnetic transient (EMT) model development, and private training, leveraging deep theoretical knowledge and extensive real-world experience.

In HVDC, ACDC Transient provides expert consulting, tailored training, and advanced modeling services focused on HVDC-VSC systems and their integration with renewable energy resources.

AECOM

AECOM is a global leader in infrastructure consulting, offering comprehensive services in the design, engineering, and management of major projects across sectors such as energy, transportation, and the environment. With a presence in more than 150 countries, AECOM connects expertise across disciplines to deliver transformative outcomes for clients worldwide.

In the HVDC (High Voltage Direct Current) sector, AECOM provides engineering and consulting services for the design and implementation of advanced HVDC transmission systems, supporting safe and efficient modern power delivery networks.

AFRY

AFRY is a Swedish-Finnish engineering, design, and advisory company with a global presence, employing more than 17,000 experts across infrastructure, industry, energy, and digitalisation sectors. Founded in 1895, the company focuses on advancing sustainable solutions and driving the transition toward a more sustainable society worldwide.

In high-voltage direct current (HVDC) projects, AFRY offers engineering, design, and advisory services, supporting clients with expertise in complex transmission and distribution initiatives globally.

Amplitude Consultants

Amplitude Consultants is an Australian-based engineering consulting company specializing in the transmission and distribution of electricity, with a focus on delivering high quality consulting services for AC and HVDC power transmission, renewable energy connections, high voltage land and submarine cables, power electronics, and Flexible AC Transmission Systems (FACTS). The company leverages the extensive expertise of its team to serve clients in utilities, consultancies, and private sectors, and is led by professionals with decades of experience in the industry.

In the HVDC sector, Amplitude has substantial experience in the development, specification, commissioning, and operation of HVDC projects, offering specialist consulting services for clients involved in high voltage direct current transmission.

Artelia Group

Artelia Group is an international, multidisciplinary engineering, project management, and consultancy firm based in France, specializing in sectors such as energy, water, building, mobility, and industry. Founded in 2010, the group operates worldwide with over 7,000 employees, delivering services throughout the entire project lifecycle, from consulting and design to asset management and operation.

In the HVDC sector, Artelia is involved in engineering and project management activities for electricity grids, contributing technical expertise to high-voltage direct current infrastructure projects as part of their broader commitment to energy transition and sustainable power transmission solutions.

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Company name

BP Consulting is a UK energy management consultancy dedicated to helping businesses optimize their energy usage and reduce costs through competitive energy tariffs, management strategies, and renewable energy solutions for a range of clients including public sector organizations and SMEs.

In the HVDC sector, BP Consulting provides specialized consulting services as part of their comprehensive energy management solutions, helping clients implement and optimize High Voltage Direct Current systems for more efficient power transmission and integration with renewable energy sources.

BakerHicks

BakerHicks is a design, engineering and project delivery company that provides consultancy services for complex infrastructure, process and built environments across the full project life cycle, working with renowned clients on projects ranging from Ireland's largest hospital to Europe's most complex station development.

In the HVDC sector, BakerHicks offers specialized expertise in High Voltage Direct Current converter stations and transmission systems, delivering innovative and buildable solutions as part of their comprehensive power engineering services portfolio.

Baneh Energy Solutions

Baneh Energy Solutions LLC is a Limited Liability Company based in Irvine, California, established recently on December 8, 2023, providing comprehensive solutions in the energy sector.

While specific information about their HVDC activities is not available in the current data, the company likely focuses on developing innovative power transmission technologies as part of their energy solutions portfolio.

Black & Veatch

Black & Veatch is a global employee-owned engineering, procurement, consulting, and construction company specializing in large-scale infrastructure development across the energy, water, telecommunications, and government sectors, with over a century of experience and more than 12,000 employees worldwide. The company is recognized for delivering complex power delivery projects and providing a full suite of services from concept through construction and ongoing asset management.

Black & Veatch has extensive experience in HVDC systems, acting as owner’s engineer for projects such as the Mackinac HVDC Converter Station in Michigan, and offering expertise in HVDC technology, system analysis, engineering, and commissioning for advanced transmission solutions.

Blackwater Safety Solutions

Blackwater Safety Solutions specializes in providing comprehensive safety management systems tailored for organizations, with a focus on aligning projects to both local and international compliance standards. Their team brings extensive international expertise in health and safety management, offering services such as safety documentation, compliance templates, and professional staff placements for construction and related industries.

In the HVDC sector, Blackwater Safety Solutions applies its safety management expertise and consultancy services to support high-voltage direct current projects, ensuring these complex engineering environments maintain rigorous health and safety compliance.

Boston Consulting Group

Boston Consulting Group (BCG) is a leading global management consulting firm founded in 1963 and headquartered in Boston, Massachusetts. Recognized as one of the world's most prestigious consulting firms, BCG partners with organizations worldwide to address complex business challenges, specializing in strategy, digital transformation, operations, and corporate development.

BCG has advised a range of energy and infrastructure clients on high-voltage direct current (HVDC) projects, supporting strategic decision-making, technology adoption, and market entry strategies within the rapidly evolving HVDC sector.

Burns & McDonnell

Burns & McDonnell is a 100% employee-owned American multinational firm specializing in engineering, architecture, construction, and consulting, with over 13,500 professionals and more than 75 offices worldwide. Founded in 1898 and headquartered in Kansas City, Missouri, the company delivers critical infrastructure projects and is recognized as one of the largest design firms globally.

Burns & McDonnell is active in high-voltage direct current (HVDC) projects, offering comprehensive engineering and construction solutions for HVDC transmission systems as part of their electrical transmission and distribution services.

CESI

CESI is a world-leading testing, consulting and engineering company in the field of technology and innovation for the electric power sector, operating in 70 countries with a network of over 1,000 professionals and an almost 70-year legacy to help clients navigate energy transition challenges.

In the HVDC sector, CESI provides specialized design and engineering services for HVDC interconnections, offering power system studies, operational planning, and comprehensive consulting solutions for utilities and transmission system operators worldwide.

Capula

Capula, part of the EDF Group, is a UK-based leader in advanced system integration with over 50 years of experience delivering significant projects across the energy and industry value chain, focusing on operational technology and digital transformation in highly regulated and challenging industrial environments. The company specializes in control, instrumentation, and automation solutions that connect, streamline, and enhance systems to meet increasing performance demands.

In the HVDC sector, Capula designs solutions to increase performance and capacity of transmission systems, leveraging their expertise in automation control and real-time IT solutions to optimize energy management, enhance reliability, and support the integration of renewable energy sources within power grids.

DNV

DNV is a global consultancy and independent expert in risk management and assurance, serving a broad range of industries including energy, maritime, oil and gas, and healthcare. With a presence in more than 100 countries and over 15,000 employees, DNV provides services such as technical advisory, certification, and testing, aiming to support clients in making critical decisions with confidence and in advancing the energy transition toward decarbonization.

In the HVDC (High Voltage Direct Current) sector, DNV offers advisory, testing, and certification services that help ensure the reliability, performance, and interoperability of large-scale HVDC transmission projects, supporting utilities and grid operators as they modernize and expand power grids.

Electric Power Engineers

Electric Power Engineers (EPE) is a leading engineering consulting firm specializing in energy and power systems, with over five decades of experience serving utilities, developers, and power sector clients worldwide. EPE provides comprehensive services in renewables integration, energy storage, transmission and distribution, grid modernization, and digital transformation, leveraging deep expertise and proprietary software to support the evolving energy landscape.

In the area of HVDC (high-voltage direct current), EPE is involved in the planning, design, and development of advanced grid infrastructure, helping clients address complex grid modeling and integration challenges as part of building the integrated grid of the future.

Elia Grid International

Elia Grid International (EGI) is a global engineering consultancy company specializing in complex power system challenges within the energy sector, offering strategic, technical, and regulatory advice related to power transmission, including specialist solutions for integrating renewable energy and developing power infrastructure.

EGI is actively supporting project developers in challenging HVDC (High-Voltage Direct Current) projects, providing expertise in interconnectors that enable enhanced integration of electricity markets and renewable energy sources across international boundaries.

Fichtner

Fichtner is a leading independent engineering and consultancy firm specializing in the energy, environmental protection, water, and infrastructure sectors, with more than 2,000 employees and a presence in over 100 countries. The company provides comprehensive interdisciplinary services—planning, consulting, and project management—for both public and private clients worldwide.

Fichtner is active in high-voltage direct current (HVDC) and alternating current (AC) power transmission, delivering bespoke solutions for all voltage levels and supporting major projects such as offshore wind farm grid connections.

GHD

GHD is a global professional services company offering consulting, engineering, and advisory solutions across sectors such as energy, water, environment, and infrastructure. With a workforce of over 12,000 employees in more than 160 offices worldwide, GHD delivers expertise from project origination to completion, focusing on building sustainable and resilient communities and supporting clients through the energy transition.

In high-voltage direct current (HVDC), GHD provides technical advisory and risk management services that enable the integration of large-scale renewable energy projects and complex grid modernization efforts, helping utilities and developers deliver major clean energy infrastructure.

HVDC Tech

HVDC Tech specializes in supporting clients in the electrical power sector, focusing on enhancing grid efficiency and enabling advanced energy infrastructure for future-ready power networks. The company provides consultancy and innovative solutions to assist clients with decision-making during industrial transformation.

In the HVDC sector, HVDC Tech works with clients to implement solutions that maximize grid efficiency, supporting the integration and optimization of high-voltage direct current systems for advanced power transmission.

Hatch

Hatch is a global engineering and project management firm with over 65 years of experience, delivering comprehensive services in renewable power, energy infrastructure, and advanced technology sectors. The company specializes in consulting, design, and implementation support for clients worldwide, particularly in power transmission, renewable energy solutions, and innovative manufacturing.

In HVDC, Hatch offers full-spectrum planning and engineering services for both line commutated converter and voltage source converter technologies, participating in multiple projects across several continents. Their activities include project integration, system studies, design, and implementation for high-profile HVDC projects such as the Maritime Link, Matiari-Lahore transmission, and SunCable, supported by a global HVDC center of excellence.

IDOM

IDOM is a globally recognized engineering and consulting firm with extensive expertise in the entire project life cycle across energy sectors, including both conventional and renewable technologies such as solar, wind, offshore-marine, biomass, and waste-to-energy.

While IDOM’s core expertise spans the planning, design, construction, and operation of advanced electrical systems and energy infrastructure, their involvement in HVDC (High Voltage Direct Current) specifically relates to supporting the development of modern, resilient power transmission networks that facilitate the integration of diverse generation sources and enhance grid reliability.

INP

INP International Projects is a global engineering company specializing in technical services for power technology, including power transmission and distribution. With over 35 years of experience, INP offers comprehensive engineering services for large-scale power plant installations and the power industry, operating in multiple countries worldwide.

INP's activities in the power transmission and distribution sector highlight their expertise in integrating renewable energy sources into existing grids, which could be leveraged for High Voltage Direct Current (HVDC) projects. However, specific details about their involvement in HVDC projects are not explicitly mentioned.

IV

IV is a leading Dutch engineering company specializing in the offshore and energy sectors, offering a wide range of services including the design of offshore wind, hydrogen, and oil platforms, as well as floating solar farms and complex steel installations. IV-Offshore & Energy is at the forefront of developments in offshore renewables, particularly in substations, and has extensive experience in adapting to new technologies and market demands.

IV-Offshore & Energy is involved in HVDC projects, having engineered notable substations such as the HVDC substation BorWin Alpha and more recently contributing to the 1.3 GW HVDC substation for RWE's Sofia offshore wind farm in the UK. They have also developed high-capacity HVDC systems, reaching up to 2GW-525 kV bi-pole HVDC.

Jacobs

Manitoba Hydro International

Manitoba Hydro International (MHI) is a subsidiary of Manitoba Hydro, offering engineering consulting, utility management, and innovative solutions for the energy, communications, and technology sectors. Based in Winnipeg, MHI leverages over a century of best-practice experience from its parent utility to deliver sustainable, efficient, and reliable energy services to clients in over 120 countries worldwide.

In the field of HVDC, MHI is recognized for conducting major system design studies and providing expertise in large-scale DC transmission projects, supporting integration and reliable operation of high voltage direct current systems for clients around the globe.

McKinsey & Company

McKinsey & Company, founded in 1926 by James McKinsey, is a global management consulting firm that partners with organizations in the private, public, and social sectors to achieve substantial improvements in their performance, with consultants in more than 60 countries bringing unparalleled expertise to clients worldwide.

While specific information about McKinsey's HVDC (High Voltage Direct Current) activities isn't available in the provided information, McKinsey works with various industries and governments on strategy and management challenges, which may include energy infrastructure projects like HVDC transmission systems as part of their consulting services.

Mosaic Grid Solutions

Mosaic Grid Solutions is an international engineering and consulting company, advancing smooth grid integration of large-scale power electronics projects. The company’s core business comprises project-related consulting, design considerations, grid integration concepts, and simulation studies with a focus on EMT-type assessments. In the field of HVDC, Mosaic supports numerous HVDC projects worldwide – including multi-terminal multi-vendor endeavors, bulk-power embedded schemes, and offshore wind connections.

Mott MacDonald

Mott MacDonald is a global, employee-owned engineering, management, and development consultancy specializing in planning, designing, delivering, and maintaining infrastructure projects across sectors such as transportation, energy, water, and buildings. With multidisciplinary expertise, the company focuses on innovation and collaborative problem-solving to provide sustainable and resilient solutions worldwide.

In the HVDC sector, Mott MacDonald offers consultancy and engineering services for electrical networks, including feasibility studies, design, and project delivery for high-voltage direct current systems as part of their broader commitment to energy transformation and decarbonization.

Ocean Cables

Ocean Cables Limited is a private company based in the UK involved in engineering-related scientific and technical consulting, specialized design activities, and research and experimental development in natural sciences and engineering. Their registered business activities also include silviculture and other forestry activities, reflecting a diverse operational focus.

There is no specific evidence in the available information indicating active involvement by Ocean Cables Limited in HVDC (High Voltage Direct Current) systems or projects.

PAIOL Engenharia

PAIOL Engenharia is a consulting company specializing in electrical engineering, headquartered in Paulínia, São Paulo, with over 10 years of experience in the sector. The company offers a range of engineering services and technical consulting, supporting clients with projects across various segments.

In the area of high-voltage direct current (HVDC), PAIOL Engenharia provides specialized consulting and project services, assisting with the planning, design, and implementation of HVDC systems for electrical infrastructure.

POWER Engineers

POWER Engineers is a global consulting engineering firm specializing in integrated solutions for various sectors, including energy, food and beverage, facilities, communications, environmental, and federal markets. Headquartered in Hailey, Idaho, the company is known for its multidisciplinary approach, bringing together engineers, scientists, and consultants to deliver comprehensive solutions.

POWER Engineers' activities specifically in the HVDC sector are not detailed in the available information. However, as a firm specializing in power delivery solutions, they are likely involved in projects related to high-voltage direct current systems, which are crucial for efficient power transmission over long distances.

PSC Consulting

PSC Consulting is a global professional services firm specializing in power systems, energy transition, and renewable energy consulting. Founded in New Zealand in 1995, PSC has grown into a multinational company, recognized for its technical expertise and commitment to empowering people to transform the energy industry for a more sustainable world.

PSC offers expert services in HVDC (High Voltage Direct Current) systems, supporting clients with technical consulting across the full lifecycle of HVDC projects, including design, implementation, and operational optimization.

Power-Tech Engineers Inc.

Power-Tech Engineers Inc. was established in 1992 by former electrical utility engineers with extensive experience in planning, permitting, and maintaining electrical facilities, evolving to provide comprehensive services to electric, water, oil, gas, and telecom utilities across the United States, Canada, and Latin America.

The company has stayed at the forefront of engineering technology by working in specialized fields including Smart Grid, Substation Automation, and Renewable Energy development, offering expertise in transmission planning, design, and power system studies.

Pterra Consulting

Pterra Consulting is an independent firm specializing in consulting services and technology solutions for the electric power industry, with clients worldwide. Their team brings over a century of combined experience in power system operations, transmission planning, electrical design, and grid integration, focusing on delivering creative and innovative solutions tailored to client needs.

Pterra has significant experience with high-voltage direct current (HVDC) projects, providing expertise in system modeling, integration studies, and analytical support related to HVDC transmission within broader power system planning and operation contexts.

RBJ Engineering

RBJ Engineering Corporation, based in Winnipeg, Canada, is a specialist consulting and engineering firm focused on high voltage and transmission systems. The company provides services such as project management, planning and design studies, and specification of both conventional and power electronic transmission equipment, supporting facility owners in developing and maintaining reliable transmission infrastructure.

RBJ Engineering’s expertise includes HVDC (high voltage direct current) systems, particularly in the planning, design, and specification of power electronic transmission equipment and digital control and protection system technologies.

RTE International

RTE International is a leading consultancy and engineering firm specializing in all aspects of electricity transmission, backed by decades of expertise from its parent company RTE, Europe's largest transmission system operator, and providing tailored solutions for the development, operation, and maintenance of power grids across more than 165 countries.

Within the HVDC sector, RTE International leverages its deep technical knowledge to provide comprehensive system studies, engineering, and project management for high-voltage direct current transmission projects, supporting clients in optimizing their grids for efficiency and integration of renewable energy.

Ramboll

Ramboll is a global architecture, engineering, and consultancy company that delivers expertise and sustainable solutions across various sectors, including buildings, transport, energy, environment & health, water, management consulting, and architecture & landscape. With a presence in over 35 countries and more than 18,000 employees, Ramboll is known for its commitment to creating sustainable impacts for its clients and partners.

Ramboll does not appear to have specific notable activities focused solely on High Voltage Direct Current (HVDC) systems based on the provided information. However, they do provide services related to power systems, which could encompass a wide range of energy-related projects.

Sargent & Lundy

Sargent & Lundy is an engineering firm founded in 1891 by Frederick Sargent and Ayres Lundy with a mission to electrify the world, pioneering numerous advancements in the power industry over their 132-year history while serving clients in more than 100 countries from over 30 office locations.

While the search results don't specifically mention HVDC activities, Sargent & Lundy has extensive experience in power delivery systems, having engineered thousands of circuit miles of transmission and distribution systems and continued to innovate in areas like smart grids and electric transportation grids.

Serala Power Consulting

Serala Power Consulting offers specialist consulting engineering and advisory services focusing on HVDC (High Voltage Direct Current), power electronics, flexible AC transmission systems (FACTS), and power transmission technology strategy. Led by Director and Principal Consultant Thomas Magg, the company brings over 27 years of experience in the electric power industry across Africa and internationally, providing solutions from project conceptualization to commissioning and operational analysis.

In HVDC, Serala Power Consulting is recognized for its expertise in technical specifications, tender evaluation, design reviews, owners engineer roles during project implementation, and system commissioning, supporting utilities and suppliers in complex high voltage DC projects.

Stantec

Stantec is a global leader in sustainable engineering, architecture, and environmental consulting, providing expertise and innovative solutions to address complex challenges in infrastructure, energy, and urban development. With a workforce of over 32,000 employees across 450 locations worldwide, the company specializes in planning, evaluation, and design for a variety of sectors including transportation, water, community development, and environmental management.

In the HVDC (high-voltage direct current) sector, Stantec offers comprehensive consulting services for the planning, design, and delivery of HVDC projects, supporting clients through the entire project lifecycle from feasibility studies to implementation.

Tetra Tech

Tetra Tech is a global consulting and engineering firm specializing in transmission and distribution solutions that support power delivery projects worldwide. Their expertise spans planning, managing, routing, permitting, and designing transmission and distribution infrastructure across diverse environments, including challenging climates and urban settings. The company also focuses on creating climate-smart utilities that integrate renewable technologies, enhance grid reliability, and promote equitable energy management.

In the HVDC sector, Tetra Tech provides advanced engineering design and consulting services, including system planning studies, permitting, routing, and siting of HVDC transmission facilities. They leverage cutting-edge technologies and software to support resilient, cybersecure grid solutions and facilitate the integration of renewable energy sources through HVDC systems.

Tractebel

Tractebel is a global engineering and consulting company specializing in integrated solutions for sustainable energy, water, and infrastructure projects. As a subsidiary of ENGIE, the company delivers services across the project lifecycle, including strategy, design, engineering, and project management, with a mission to support a carbon-neutral future.

In the high-voltage direct current (HVDC) sector, Tractebel provides engineering and consulting expertise for the transmission and distribution of electricity, contributing to the development and implementation of advanced HVDC projects to enhance the reliability and efficiency of energy systems.

TransGrid Solutions

TransGrid Solutions is a global leader in power transmission engineering and consulting, offering expert services in power system analysis, renewables integration, energy storage, and advanced grid technologies. With decades of experience and a team of highly qualified engineers, the company serves clients worldwide, providing comprehensive solutions for utilities, system operators, and developers.

The company is renowned for its deep expertise in HVDC (High Voltage Direct Current) technology, including the design, management, and delivery of major HVDC infrastructure projects, operational studies for HVDC integration, and consulting on VSC HVDC links for offshore wind and interconnections.

WSP

WSP is a global engineering and professional services consultancy that provides technical expertise and project management services across the energy sector, supporting clients in the development, operation, and modernization of utility-scale power systems and infrastructure. The firm is deeply involved in the energy transition, helping clients advance towards cleaner power generation, grid resiliency, and sustainability goals through services spanning advisory, engineering design, environmental compliance, and construction management.

In the HVDC sector, WSP delivers specialized engineering, owner’s engineering, and project management services for high-voltage direct current (HVDC) transmission projects, including major underground and submarine systems such as the Champlain Hudson Power Express, with experience up to ±600kV HVDC. Their work encompasses technical design, permitting, and construction oversight for HVDC lines, enabling the integration of renewable energy over long distances and supporting reliable grid operation.

Wood Group

Wood Group, also known simply as Wood, is a global leader in consulting, engineering, and project delivery services focused on designing the future of energy and materials across more than 60 countries. The company provides comprehensive solutions to enhance performance of industrial assets throughout their lifecycle, serving markets including oil and gas, chemicals, environment and infrastructure, power and process, and clean energy.

While the search results don't specifically mention HVDC activities, Wood delivers engineering and technical services across energy markets, which likely includes work in high-voltage direct current transmission as part of their power sector solutions and infrastructure expertise.

AP Sensing

AP Sensing is a leading solution provider for Distributed Fiber Optic Sensing (DFOS) technology, developing innovative monitoring solutions based on HP/Agilent's optical testing expertise to protect critical infrastructure with high-performance, reliable systems that deliver real-time insights.

In HVDC applications, AP Sensing's distributed temperature sensing (DTS) and distributed acoustic sensing (DAS) technologies provide continuous 24/7 monitoring of underground and submarine power cables, enabling precise localization of hotspots and cable faults while computing actual ampacity to ensure maximum network performance under safe operational conditions.

Arteche

Arteche is a global leader in the electric power industry, providing advanced solutions and equipment such as instrument transformers, auxiliary relays, and substation automation to customers worldwide. With nearly 75 years of experience, Arteche is recognized for its innovation, adaptability, and commitment to delivering reliable products and services across the generation, transmission, and distribution sectors.

In the HVDC sector, Arteche develops optical current transformers and specialized measurement solutions, leveraging the Faraday effect for accurate DC current measurement in high-voltage applications. Their optical transformers are designed for precision, safety, and easy integration into digital substations, offering flexible digital and analog interfaces tailored to HVDC system demands.

Black Swift Technologies

Black Swift Technologies, founded in 2011 and based in Boulder, Colorado, specializes in the development of highly accurate and robust unmanned aircraft systems (UAS) designed for demanding atmospheric environments. Their purpose-built aerial platforms are used worldwide for scientific research missions in extreme conditions, including wildfire monitoring, volcano assessments, tornado and hurricane research, and other challenging field campaigns.

There is no specific mention of Black Swift Technologies' involvement in HVDC (high-voltage direct current) activities; their expertise and activities are primarily focused on advanced UAS platforms, avionics, and data-driven atmospheric research.

Coil Innovation

Coil Innovation is a leading manufacturer of air-core dry-type reactors, specializing in innovative solutions for electrical systems. Founded in 2004, the company operates from Eferding, Upper Austria, with a significant presence globally, including a US headquarters, and exports over 95% of its products worldwide.

Coil Innovation's expertise extends to high-voltage direct current (HVDC) applications, where their reactors play a crucial role in power transmission systems. Their products are designed to support complex power applications, including current limiting and neutral grounding reactors, which are essential for maintaining stability in HVDC systems.

Cressall Resistors

Cressall Resistors is a leading manufacturer with over 100 years of experience, offering a broad range of power resistor technologies for low, medium, and high-voltage applications. Their products serve demanding sectors such as power generation, electrical distribution, renewable energy, transportation, and industrial automation, earning them a global reputation for engineering excellence and manufacturing quality.

In the HVDC sector, Cressall provides high voltage filter resistors that are integral to HVDC converter stations and damping networks, supporting critical functions in voltage source converter (VSC), SVC, and MSCDN systems.

HICO America

HICO America, headquartered in Pittsburgh, PA, is a leading provider of high-quality power transformers, shunt reactors, and gas-insulated switchgear, serving the North American utility market with products manufactured at its state-of-the-art facility in Memphis. The company is a wholly-owned subsidiary of Hyosung Heavy Industries Corporation and is committed to innovation, quality, and supporting infrastructure and renewable energy initiatives.

HICO America's activities in HVDC (High Voltage Direct Current) include the manufacturing of large power transformers and advanced switchgear technologies that support flexible and reliable power transmission for HVDC projects and networks.

High Volt

High Volt, officially known as HIGHVOLT Prüftechnik Dresden GmbH, is a global leader in high voltage test and measurement technologies with over 120 years of experience, providing innovative solutions that ensure the reliability of electrical systems worldwide.

In the HVDC sector, High Volt offers modular test systems with rated voltages up to 2400 kV and currents from 5 mA to 500 mA, designed specifically for testing HVDC cables, DC bushings, converter transformers, thyristor valves, and overhead line components.

JSHP Transformer

JSHP Transformer, founded in 1967, is a family-owned company and one of the world’s largest manufacturers of transformers, with a production capacity reaching 200,000 MVA and voltage ratings up to 850kV. The company is recognized as the largest producer of medium power transformers globally, delivering over 111,500 MVA in 2022 and maintaining a strong reputation in the global transformer market.

In the HVDC sector, JSHP manufactures power transformers, shunt reactors, and phase-shifting transformers for high voltages such as 500/750kV and 220/345kV, and has supplied more than a hundred high-voltage units—including multiple auto-transformers—to major utility companies in the USA and Canada since 2009.

Koncar Instrument Transformers

Koncar Instrument Transformers is a Croatian company specializing in the manufacture of high-voltage instrument transformers with voltage ratings ranging from 72.5 kV to 800 kV and a transformer life expectancy of 50 years. The company is part of the larger KONČAR Group, which has a long history since 1921 in electrical equipment manufacturing and exports products to more than 100 countries worldwide.

In the HVDC sector, Koncar produces high-voltage reactors and instrument transformers that support HVDC systems, supplying equipment such as current, voltage, and combined transformers used in transmission grids up to 420 kV. It has secured multi-year contracts with transmission operators to deliver these critical components, contributing to reliable HVDC and high-voltage applications.

KraftPowercon

KraftPowercon is a Swedish company specializing in industrial power conversion solutions, offering innovative products and services to make processes more secure, reliable, and efficient across various industries, from super tankers to nuclear power plants.

In the HVDC sector, KraftPowercon provides converter cooling and power conversion solutions that are essential for maintaining reliable and efficient high-voltage direct current transmission systems, leveraging their expertise in high current and high voltage applications.

Lamifil

Lamifil is a globally recognized manufacturer of high-quality cables, wires, and wire-based products, with a heritage dating back to 1929 and headquarters in Belgium. The company specializes in serving Distribution System Operators (DSOs) and Transmission System Operators (TSOs) by providing innovative overhead conductor solutions and tailored support for power transmission challenges.

In HVDC, Lamifil develops specialized overhead conductors designed to boost grid capacity and efficiency, delivering advanced solutions that support the integration and expansion of modern power transmission networks.

Lapp Insulators

Lapp Insulators is a leading manufacturer and supplier of high-voltage insulators with a global sales network spanning over 70 countries, tracing its heritage back to 1889 in Germany and 1916 in America through renowned brands like Rosenthal and Siemens. The company's reputation is built on uncompromising quality, safety standards, and customer service, providing insulators that perform dependably for decades even under harsh environmental conditions.

In the HVDC sector, Lapp Insulators specializes in producing custom ceramic hollow and post insulators designed to withstand the extreme mechanical and electrical demands of high voltage direct current systems, supporting modern power transmission infrastructure and energy projects worldwide.

Loruenser

Loruenser Austria GmbH, based in Schlins, Vorarlberg, is a leading manufacturer specializing in high-voltage equipment with over 70 years of experience. Part of the Knill Gruppe since 1985, the company offers more than 35,000 products, including connectors, clamps, terminals, and hardware fittings, serving customers in over 40 countries worldwide with a strong export focus.

In the HVDC sector, Loruenser supplies tailored solutions and components for HVDC substations and transmission systems ranging from 60kV to 800kV, including specialized connectors, clamps, corona protection shields, and busbars, contributing to major projects such as the submarine cable link between England and France and the Indian Champa-Kurukshetra HVDC project.

MS Resistances

MS Resistances is a leading manufacturer specializing in high voltage and high power resistors, with over 30 years of expertise in designing solutions for demanding industrial applications. Their team of experienced engineers provides tailored products and services to major international projects, earning trust from global partners in the power transmission, distribution, and conversion sectors.

In the HVDC (High Voltage Direct Current) field, MS Resistances supplies specialized resistor solutions and is recognized as a trusted partner by leading companies involved in HVDC projects worldwide.

Microelettrica Scientifica

Microelettrica Scientifica, established in 1953, is a leading manufacturer of electrical and electronic components, specializing in switches, protection relays, and resistors. The company has been part of the Knorr-Bremse Group since 2005, focusing on rail transportation and industrial applications, with a global presence and commitment to delivering integrated solutions.

Microelettrica Scientifica does not have specific activities mentioned in the context of High Voltage Direct Current (HVDC) systems, but their extensive experience in rail and industrial applications suggests they could contribute to related electrical infrastructure projects.

Norwegian Energy Partners

Norwegian Energy Partners (NORWEP) is a non-commercial foundation jointly financed by the Norwegian government and industry, dedicated to supporting and assisting the internationalisation of the Norwegian energy sector. Acting as a catalyst, NORWEP connects Norwegian companies with international businesses and governments to strengthen long-term value creation and employment in Norway’s energy industries through focused global initiatives.

Within the HVDC sector, Norwegian Energy Partners promotes and supports the export of Norwegian technologies and solutions, including specialized equipment such as cooling units for HVDC converter stations, by facilitating cooperation between Norwegian suppliers and international projects.

PFIFFNER Instrument Transformers

PFIFFNER Instrument Transformers is a Swiss company with over 95 years of experience, specializing in the development and manufacture of current and voltage transformers, as well as resistive and capacitive voltage dividers for use in utilities, industry, and railways. Renowned for its high-quality, state-of-the-art products and strong global presence, PFIFFNER offers instrument transformers for voltage levels up to 550 kV, emphasizing Swiss quality and in-house control of all key processes.

In the HVDC sector, PFIFFNER provides specially designed instrument transformers tailored for high-voltage direct current applications, offering reliable measurement and protection solutions that meet the demands of modern HVDC transmission systems.

Pfisterer

Pfisterer is a globally leading and independent technology company specializing in high-voltage cable accessories and system solutions for energy infrastructures, with headquarters in Winterbach near Stuttgart, Germany. Founded in 1921, the company develops, manufactures, and sells solutions for the insulation and connection of electrical conductors across the entire power grid, from generation to transmission and distribution, and operates internationally with over 1,200 employees at multiple production sites.

In the HVDC sector, Pfisterer supplies advanced components and cable accessories that are critical for high-voltage direct current transmission systems, supporting reliable and efficient long-distance power transmission and the integration of renewable energy sources into modern grids.

Company name

Roxtec is a Swedish company founded in 1990 that specializes in the development and manufacture of cable and pipe sealing solutions, providing complete sealing systems that protect life and assets while ensuring safety and operational reliability in demanding projects worldwide.

In the power transmission sector, particularly HVDC applications, Roxtec provides flexible sealing solutions that protect electrical systems by creating reliable barriers against multiple hazards including fire, water, gas, and electromagnetic disturbances.

Sci Break

Sci Break develops high-voltage, fast-acting circuit breakers designed to improve the reliability and capacity of modern power transmission grids. Their technology is aimed at enabling broader integration of renewable energy by strengthening and future-proofing both DC and AC grid infrastructure.

In the HVDC (high-voltage direct current) sector, Sci Break specifically focuses on providing circuit breakers that are essential for the safe and efficient operation of DC grids, playing a key role in the development of the supergrid and the expansion of renewable energy transmission.

Sediver

Sediver is a global leader in transmission insulation technology, specializing in the research, design, manufacturing, and testing of toughened glass insulators for overhead transmission lines and railway systems. With over 70 years of experience, a strong global footprint, and continuous investment in R&D, Sediver has pioneered numerous innovations in the industry and has over 600 million insulators in service worldwide.

In HVDC (high voltage direct current) applications, Sediver is recognized for its expertise in developing advanced toughened glass insulators specifically formulated for HVDC lines, ensuring high reliability and top performance for critical transmission systems.

Teesing

Teesing is a global supplier and manufacturer specializing in high-quality components and assemblies for the transportation, control, sealing, distribution, filtration, purification, and measurement of gases and liquids. With over 70 years of experience and offices in the Netherlands, the United States, Taiwan, and China, Teesing delivers solutions across a variety of sectors, emphasizing quality, innovation, and close collaboration with partners.

In the HVDC sector, Teesing provides specialized cooling solutions for converter stations, leveraging its expertise in assembly, precision engineering, and cleanroom operations to meet stringent technical and cleanliness requirements.

Tianjin Jingwei Zhengneng Electrical Energy Equipment Co.

Tianjin Jingwei Zhengneng Electrical Energy Equipment Co., Ltd. (TEEE) is a leading manufacturer based in Tianjin, China, specializing in ultra-high voltage large reactors, particularly dry-type air-core and iron core reactors. Established in 2014, the company’s products are widely used in national and international energy transmission projects, playing a significant role in major grid and new energy industries.

In the HVDC sector, TEEE has provided critical equipment for ultra-high voltage direct current transmission projects, including supplying record-setting HVDC air-core reactors for the world’s first 1100 kV HVDC transmission line, supporting grid stability and advanced power transmission infrastructure.

Trench Group

Trench Group is a global leader in power engineering, specializing in the design and manufacturing of high voltage electrical products such as bushings, instrument transformers, and coils for utility and industrial customers worldwide. With over 100 years of experience and a strong presence through nine factories and four regional hubs, the company is recognized for its innovation and commitment to sustainability in the energy transmission market.

In the HVDC sector, Trench Group supplies essential high-voltage components like instrument transformers and bushings, supporting reliable and efficient operation of high-voltage direct current transmission systems.

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.

ELEK (Elektros Inc.)

ELEK, or Elektros Inc., is an American company specializing in electric mobility and sustainable energy solutions. Operating with a vertically integrated model, the company is active in lithium mining, EV charging infrastructure, solar energy storage, and power supply systems for AI data centers, leveraging innovative technologies such as a patent-pending Multi-Port Charging Assembly for flexible vehicle charging solutions.

Regarding HVDC activities, ELEK provides expertise in high-voltage cable design—including guidance on sheath bonding techniques for HV cables—which are essential for the safety and reliability of HVDC and high-voltage AC transmission systems.

EMTP

EMTP is an advanced software tool for simulation and analysis of power systems, known as the Electromagnetic Transients Program, which provides highly accurate modeling capabilities for electromagnetic transients across transmission, distribution, generation, and industrial sectors with over 35 years of development experience backed by major power utilities including EDF, Hydro-Quebec and RTE.

In the HVDC domain, EMTP delivers comprehensive modeling and simulation capabilities for analyzing complex power electronics systems, supporting engineers in the design and operation of HVDC transmission projects through specialized tools that enable detailed studies of both converter technologies and their integration with power grids.

Eaton CYMCAP

Eaton CYMCAP is a comprehensive power cable ampacity software that enables detailed graphical modeling and calculation of ampacity and temperature rise for a wide variety of power cable types and installation conditions. It supports advanced features such as transient thermal analysis, soil modeling, and 3D thermal analysis for the accurate and reliable design of cable systems.

For HVDC applications, CYMCAP includes specialized modules for submarine cables and supports cable ampacity calculations tailored to the specific requirements of HVDC cable installations, aiding engineers in the efficient design and assessment of complex HVDC systems.

Electranix E-TRAN

Electranix E-TRAN is a specialized software tool that automates the translation of power system data from phasor-based load flow and stability analysis programs, such as PSS/E, into PSCAD formats for electromagnetic transient (EMT) simulation. By streamlining the creation of detailed and accurate network equivalents and graphical representations, E-TRAN enables efficient and confident initialization and analysis of power systems in EMT environments.

For HVDC applications, E-TRAN supports the modeling and simulation of HVDC systems within its libraries, allowing users to accurately incorporate HVDC links and devices into comprehensive PSCAD-based system studies.

INTEGRATED Engineering Software

INTEGRATED Engineering Software is a leading developer of simulation tools for engineering and scientific designs, specializing in electromagnetic, thermal, and structural analysis. Their software leverages both Boundary Element Method (BEM) and Finite Element Method (FEM) technologies, providing solutions for complex physical modeling across multiple industries.

In HVDC applications, INTEGRATED’s simulation tools are utilized for the analysis and design of electric fields and insulation systems, supporting the optimization and reliability of high-voltage direct current infrastructure.

MathWorks

MathWorks is a leading developer of mathematical computing software, best known for its flagship products MATLAB and Simulink, which are widely used by engineers and scientists for data analysis, simulation, and model-based design. The company serves a broad range of industries, including automotive, aerospace, energy, and communications, and is recognized for accelerating innovation and development in engineering and scientific domains.

In the HVDC sector, MathWorks' tools, particularly MATLAB and Simulink, are extensively used for modeling, simulation, and control system development of high-voltage direct current systems, enabling engineers to analyze system behaviors and optimize performance in energy transmission projects.

Nayak Corporation

Nayak Corporation is a specialized power systems company founded in 1999 that provides professional power system simulation tools along with consulting, support, training, and engineering services, with a focus on empowering customers through open knowledge transfer. Their expertise spans various power engineering disciplines including power system protection, distributed energy resources, micro-grid, and more.

In the HVDC sector, Nayak Corporation offers specialized consulting services and simulation tools for High Voltage Direct Current systems, leveraging their advanced simulation technologies like PSCAD and RTDS to help clients analyze and understand complex HVDC phenomena and develop innovative solutions.

OPAL-RT Technologies

OPAL-RT Technologies is a global leader in the development and manufacturing of high-performance real-time simulation and Hardware-in-the-Loop (HIL) testing platforms for industries such as power systems, energy conversion, transportation, and aerospace. Founded in 1997 and headquartered in Montreal, the company provides advanced simulation solutions that empower engineers and researchers worldwide to accelerate the development of reliable and innovative products.

In the field of HVDC, OPAL-RT offers real-time simulation platforms and testing solutions specifically designed to model, analyze, and validate HVDC control and protection systems, helping utilities and equipment manufacturers ensure safe and efficient HVDC grid integration and operation.

PSCAD

PSCAD is a powerful tool for power systems electromagnetic transient (EMT) simulations, offering users the ability to build, simulate, and model power systems with ease. It provides a comprehensive library of system models, including simple passive elements and complex devices, and has been developed over more than 40 years with continuous user feedback.

Although specific activities in HVDC are not detailed, PSCAD's capabilities in modeling and simulating complex power systems make it a valuable tool for analyzing and optimizing high-voltage direct current (HVDC) systems, which are crucial for efficient long-distance power transmission.

Power Line Systems - PLS-CADD

Power Line Systems is a leading global software provider specializing in the design and drafting of overhead electric power transmission, distribution, and communication lines and structures. Their flagship product, PLS-CADD, integrates terrain modeling, engineering standards, advanced sag-tension analysis, structure modeling, and drafting into a single, powerful, and user-friendly program used by over 1,600 organizations in more than 125 countries.

In the HVDC sector, PLS-CADD offers sophisticated engineering capabilities to design overhead transmission lines, ensuring compliance with international standards and enabling cost-effective, optimized line designs that account for complex terrain and structural considerations essential for HVDC line projects.

RTDS Technologies

RTDS Technologies is a leading company in the field of real-time digital power system simulation, based in Winnipeg, Manitoba, Canada. They are renowned for their innovative real-time power system simulators, which have revolutionized the power industry by enabling detailed testing and validation of power systems, including renewable energy and microgrid technologies.

RTDS Technologies' activities in High Voltage Direct Current (HVDC) and Flexible AC Transmission Systems (FACTS) involve the use of their advanced simulators to test and validate the performance of these systems. This allows for the simulation of complex power transmission scenarios, ensuring the reliability and efficiency of HVDC and FACTS systems in real-world applications.

Siemens PSSE

Siemens PSSE (Power System Simulator for Engineering) is a leading transmission planning and analysis software widely used in over 140 countries. It provides comprehensive capabilities including power flow, dynamics, short circuit, contingency analysis, optimal power flow, voltage stability, and transient stability simulation, offering industry-standard, trusted results and extensive automation via Python and other APIs.

In the HVDC domain, Siemens PSSE supports detailed simulation and analysis of power transmission systems that include HVDC links, enabling planners and engineers to model, optimize, and ensure the stability and reliability of HVDC systems alongside traditional AC networks.

XTAP

XTAP is focused on software development and talent acceleration, offering programs that combine technical training with career services such as communication, networking, and personal branding workshops. Their initiatives aim to support workforce development and enhance technical skills in a collaborative learning environment.

While XTAP itself does not appear to directly engage in HVDC technology, the abbreviation XTAP in the context of Microsoft Entra refers to Cross-Tenant Access Policy, which manages B2B collaboration and access in software environments rather than HVDC projects.

Aalborg University

Aalborg University (AAU), founded in 1974, is a public university in Denmark with campuses in Aalborg, Esbjerg, and Copenhagen. It is recognized for its innovative problem-based learning model and offers a wide range of programs in humanities, social sciences, natural sciences, engineering, and medicine to over 20,000 students, including a significant proportion of international students.

Aalborg University is especially active in research on high-voltage direct current (HVDC) technology, leveraging its strong engineering faculty to collaborate with industry and advance research in power electronics, grid integration, and HVDC systems.

Cardiff University

Cardiff University is a leading public research institution located in Cardiff, Wales, known for its world-class research, innovative spirit, and membership in the prestigious Russell Group. Established in 1883, it is recognized as Wales’s top-ranking university and boasts a diverse, inclusive community committed to real-world impact and academic excellence.

In the area of HVDC (High Voltage Direct Current), Cardiff University is involved in advanced research and development activities, drawing on its strengths in engineering and close collaboration with industry to address challenges in modern energy systems.

Centre for Doctoral Training in Offshore Renewable Energy (IDCORE)

The Centre for Doctoral Training in Offshore Renewable Energy (IDCORE) is a collaborative programme led by the Universities of Edinburgh, Strathclyde, Exeter, and Swansea, focused on training future leaders for the offshore renewable energy sector through a mix of taught courses and industry-based research projects. Students undertake a four-year EngD programme, spending the majority of their time working directly with sponsoring companies on real-world challenges in offshore wind, wave, and tidal energy.

In the area of HVDC (High Voltage Direct Current), IDCORE students have engaged with leading facilities such as the ORE Catapult's HV electrical infrastructure laboratory, working on projects related to electrical systems and infrastructure that support the integration of offshore renewables into the grid.

Energy Technology Partnership (ETP)

The Energy Technology Partnership (ETP) is an alliance of 14 Scottish universities, making it the largest academic energy research partnership in Europe. ETP promotes collaboration between universities and industry to deliver world-class research, innovation, and development across a comprehensive spectrum of energy technologies, supporting Scotland’s ambition to remain a leader in energy research and the net-zero transition.

ETP's activities include a focus on energy distribution and infrastructure, which encompasses research and collaboration in areas such as High Voltage Direct Current (HVDC) technology, leveraging the combined expertise of its partner institutions to advance innovation in the transmission and integration of renewable energy sources.

Imperial College London

Imperial College London is a world-leading public research university in London, renowned for its strengths in science, technology, engineering, medicine, and business. Established in 1907, Imperial consistently ranks among the top universities globally and is known for its innovative research, international outlook, and notable alumni and staff, including Nobel laureates and Fields Medalists.

Imperial College London is actively involved in high voltage direct current (HVDC) research and development through its engineering faculty, advancing grid technologies and power systems to support renewable integration and energy transmission.

Company name

TU Delft (Delft University of Technology) is the oldest and largest technical university in the Netherlands, established in 1842, with approximately 27,000 students across 40 technical-scientific disciplines housed in eight faculties. The university offers 16 bachelor's and more than 30 master's programs, combining science, engineering, and design in a socially responsible manner.

TU Delft houses the second-largest High Voltage Laboratory in Europe within its faculty of Electrical Engineering, Mathematics and Computer Science, demonstrating its significant contribution to HVDC research and education.

TU Dortmund University

TU Dortmund University is a young, dynamic institution located in Dortmund, Germany, offering around 80 degree programs across natural sciences, engineering, social sciences, and cultural studies. Renowned for innovation and interdisciplinarity, the university supports cutting-edge research and is internationally recognized for its strengths in engineering, production, logistics, and teacher training.

In the field of HVDC (High Voltage Direct Current), TU Dortmund University is active in electrical engineering research, with particular expertise in advanced power transmission systems and technologies that support the development and integration of HVDC solutions.

UNSW Sydney

UNSW Sydney is a leading public research university located in Sydney, Australia, known for its strong focus on teaching, innovative research, and global engagement. Established in 1949, it is ranked among the top universities worldwide and is a founding member of Australia’s Group of Eight research-intensive universities.

In the area of HVDC (High Voltage Direct Current), UNSW conducts advanced research and academic activities, primarily through its Faculty of Engineering, contributing to the development and innovation of HVDC technologies.

University of Aberdeen

The University of Aberdeen, founded in 1495, is Scotland's third oldest university and the fifth oldest in the UK, currently ranking among the Top 15 UK universities according to recent guides. With a global presence in higher education, Aberdeen serves both its regional community and the wider world, offering outstanding levels of student satisfaction and hosting a diverse community of around 12,000 students from 120 different nationalities.

While the University of Aberdeen is known for its strengths in science, engineering, and education, with approximately half of its students studying medicine, science, or engineering, there is no specific mention of HVDC (High Voltage Direct Current) activities in the available information.

University of Edinburgh

The University of Edinburgh is a prestigious public research university founded in 1582 in Scotland, playing a crucial role in the Scottish Enlightenment and ranking among the top 40 universities globally with a rich history spanning over 400 years.

The University of Edinburgh contributes to HVDC research through its cross-disciplinary approach and innovation-led growth initiatives, helping businesses secure significant investments and advancing technological developments across various fields.

University of Manchester

The University of Manchester is a prestigious public research university located in Manchester, England, recognized as one of the largest single-site universities in the UK and a founding member of the Russell Group. It is renowned for its academic excellence, world-leading research, vibrant student life, and a distinguished history of innovation, including 25 Nobel Prize winners among its staff and alumni.

In the field of HVDC (high voltage direct current), the University of Manchester is actively involved in research and development, contributing significant advancements and expertise in electrical power engineering and transmission technologies.

University of Pittsburgh

The University of Pittsburgh is a top-ranked, public research university located in Pittsburgh, Pennsylvania, and a member of the Association of American Universities. Established in 1787, it is known for its world-class research, academic excellence, and comprehensive educational opportunities across its 132-acre urban campus, serving over 28,000 students through a wide array of undergraduate and graduate programs.

In the field of HVDC (high-voltage direct current), the University of Pittsburgh engages in research and educational activities through its engineering and related programs, contributing to advancements in power systems and grid modernization.

University of Southampton

The University of Southampton is a leading public research university in England, renowned for its strong academic and research excellence, and is a founding member of the Russell Group of research-intensive universities. It has a diverse community of over 21,000 students across multiple campuses, including locations in Southampton, Winchester, Malaysia, and India, with significant industry partnerships and a robust focus on innovation and global impact.

Within the HVDC domain, the University of Southampton engages in advanced research and development activities, leveraging its engineering and maritime technology expertise hosted at the Boldrewood Campus, contributing to innovations in high-voltage direct current transmission and related power systems technologies.

University of Strathclyde

The University of Strathclyde, located in Glasgow, Scotland, is a leading public research university founded in 1796 as the Andersonian Institute and recognized as the UK's first technological university. It is renowned for its strong focus on research, world-class teaching, and close engagement with industry, serving a vibrant, international community of around 30,000 students from over 140 countries.

The University of Strathclyde is highly active in High Voltage Direct Current (HVDC) research, particularly through its Technology & Innovation Centre, collaborating with industry and government on innovative projects in energy systems and electrical power engineering.

University of Waterloo

The University of Waterloo is a leading global research-intensive university in Ontario, Canada, renowned for entrepreneurship and innovation, with over 41,000 students and the world's largest post-secondary co-operative education program that connects students with 8,000+ active co-op employers.

While the search results do not specifically mention HVDC activities at the University of Waterloo, the institution is known for its strong engineering programs and research initiatives that likely contribute to advancements in various technological fields including power systems.

University of Wollongong

The University of Wollongong (UOW) is a leading Australian public research university located in Wollongong, New South Wales, with a global network of campuses and over 33,000 enrolled students. Renowned for its multidisciplinary research, high global ranking, and extensive partnerships, UOW offers more than 300 degree programs and is committed to innovation, sustainability, and excellence in teaching and research.

UOW is active in high voltage direct current (HVDC) research and development, particularly through its world-class engineering and electrical power research groups, contributing to advancements in energy transmission technologies and collaborating with industry partners on modern power systems.

50Hertz Transmission

50Hertz Transmission GmbH operates the electricity transmission system in northern and eastern Germany, managing over 10,000 kilometers of high-voltage power lines that supply electricity to 18 million people across seven federal states, with a goal of integrating 100 percent renewable energies by 2032.

As a leader in renewable energy integration, 50Hertz is involved in developing hybrid direct current interconnector projects, including a joint venture with Energinet to link offshore wind power between Denmark and Germany via Bornholm, enabling up to 3 GW of transmission capacity.

ADANI

Adani Group is a leading Indian conglomerate with major operations in power generation, transmission, distribution, and renewable energy, notably through companies like Adani Energy Solutions Ltd (AESL) and Adani Green Energy Ltd. AESL is the largest private transmission and distribution company in India, managing over 26,000 circuit kilometers of transmission lines and serving millions of consumers, while Adani Green Energy leads renewable initiatives with a portfolio of 14,242.9 MW in operational solar and wind projects.

Adani Energy Solutions is active in high-voltage direct current (HVDC) infrastructure as part of its large-scale power transmission projects, delivering reliable and efficient electricity across long distances in India.

APA Group

APA Group is a leading Australian energy infrastructure company specializing in the transportation and management of natural gas, with a national footprint that connects nearly half of the country’s domestic gas supply. The company also operates a growing portfolio in renewables, electricity transmission, and provides asset management and operations services while playing a key role in Australia’s energy transition and long-term energy security.

In the area of HVDC, APA is expanding its activities in electricity transmission infrastructure, supporting large-scale renewable and firming generation projects, which may include HVDC developments as part of Australia’s move to a more integrated and reliable energy grid.

ATCO

ATCO is a diversified global corporation based in Canada, delivering integrated energy, housing, transportation, and infrastructure solutions across more than 100 countries. With approximately 19,000 employees and $25 billion in assets, ATCO provides essential services including natural gas and electricity, workforce housing, and utility infrastructure to support communities and industries worldwide.

In high-voltage direct current (HVDC) activities, ATCO builds, operates, and maintains critical electric transmission infrastructure, supporting energy reliability and enabling the integration of new technologies for a sustainable energy future.

Aker Solutions

Aker Solutions is a Norwegian engineering company headquartered in Oslo that delivers integrated solutions, products, and services primarily to the global energy industry. It focuses on enabling low-carbon oil and gas production while developing renewable energy solutions, including wind-to-grid infrastructure and CO2 capture and sequestration. Founded in 1841, the company has evolved through mergers and restructuring, most recently merging with Kværner ASA in 2020 to strengthen its capabilities in project execution, engineering, and construction for both oil and gas and renewable energy sectors. Aker Solutions emphasizes sustainable energy production and the acceleration of the energy transition using digital technologies and innovative solutions.

Alpiq

Alpiq is an internationally active energy group headquartered in Lausanne, Switzerland, specializing in electricity production and energy services across Europe. Established in 2009 through the merger of Atel Holding AG and EOS S.A., the company operates a diverse portfolio of power plants—including hydro, nuclear, wind, and solar—and provides energy generation, marketing, and optimization services.

Alpiq’s presence in HVDC (high-voltage direct current) is primarily related to its expertise in energy trading and cross-border electricity transport, leveraging high-voltage networks for reliable and efficient energy flows between countries. While not a pure HVDC technology developer, Alpiq is active in the management and optimization of transmission assets that may include HVDC infrastructure as part of its pan-European operations.

AltaLink

AltaLink is Alberta's largest regulated electricity transmission provider, responsible for supplying electricity to more than 85% of the province’s population through over 13,300 kilometres of transmission line and 311 substations. The company plays a central role in connecting homes, businesses, and industries to power across Alberta, supporting both traditional and renewable energy sources as part of Alberta’s energy transition and net-zero ambitions.

AltaLink’s primary focus is on high-voltage alternating current (HVAC) transmission, and there is no indication from available sources that it owns or operates high-voltage direct current (HVDC) transmission infrastructure in Alberta.

Amprion

Amprion GmbH is one of Germany's four main transmission system operators, responsible for the country's longest extra-high-voltage grid spanning 11,000 kilometers. Its network transports electricity across a region from the North Sea to the Alps, serving about 29 million people and supporting a significant portion of Germany’s economic output.

Amprion plays a leading role in expanding and modernizing Germany's power infrastructure, including substantial investments and projects in HVDC (high-voltage direct current) technology to facilitate the reliable integration and efficient transmission of renewable energy over long distances.

Ariadne

Ariadne Interconnection is a wholly-owned subsidiary of the IPTO Group, established in September 2018 to implement major energy infrastructure projects in Greece. The company was created specifically to construct and finance the electrical interconnection between Crete and Attica, marking the largest electricity transmission investment in Greek history and a significant move toward greater energy reliability and sustainability.

In HVDC, Ariadne is responsible for the Crete-Attica interconnection, which is among the most advanced projects in Europe, featuring two 500 kV submarine HVDC cables (1,000 MW total capacity) and state-of-the-art converter technology. This project is the first HVDC interconnection in the Mediterranean using voltage source converter (VSC) technology and is recognized as one of the most innovative and challenging subsea HVDC links globally.

Augstsprieguma tīkls

Augstsprieguma tīkls AS (AST) is the independent electricity transmission system operator for Latvia, overseeing the national power grid infrastructure at 110 kV and above. The company is responsible for the operation, maintenance, and development of Latvia’s high-voltage transmission network, ensuring the security and reliability of electricity supply for the country.

In relation to HVDC, AST plays a key role in cross-border power transmission by operating interconnections that support Latvia’s integration in the regional and European electricity markets, and participates in major synchronization projects, such as connecting the Baltic power grid with Continental Europe, which includes both AC and HVDC components.

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.

While the search results do not specifically mention HVDC (High Voltage Direct Current) activities, 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.

Baltic Cable

Baltic Cable is a transmission system operator that manages a 260-kilometer underwater high-voltage direct current (HVDC) transmission line connecting Lübeck, Germany, and Kruseberg, Sweden, which has been in operation since 1994 and is currently owned by the Norwegian company Statkraft Asset Holding AS.

As an HVDC specialist, Baltic Cable operates one of the world's longest submarine cables with a transmission capacity of 600 MW at 450 kV DC, allowing for efficient electricity exchange between the Swedish and German power grids and supporting Europe's transition to renewable energy.

Belo Monte Transmissora de Energia (BMTE)

Belo Monte Transmissora de Energia (BMTE) is a Brazilian special purpose entity established in 2014 to construct, operate, and maintain electric power transmission infrastructure, primarily serving as a transmission system operator and electric power distributor in Brazil. The company is headquartered in Rio de Janeiro and operates within the electric power transmission, control, and distribution sector.

BMTE is responsible for the implementation and management of high-voltage direct current (HVDC) transmission lines, including the 800kV Xingu transmission line, which plays a critical role in connecting hydropower generation from Belo Monte to the national grid.

BritNed

BritNed is a joint venture between National Grid (UK) and TenneT (Netherlands) that operates a 1,000 MW electricity interconnector linking the UK and the Netherlands via a 260 km high-voltage submarine cable. Operational since 2011, BritNed is a leading cross-border interconnector that facilitates electricity trading between the two countries and powers over 1.4 million homes per year.

BritNed's core activity centers on its high-voltage direct current (HVDC) link, which uses advanced converter stations and subsea cables to efficiently transmit electricity between Great Britain and the Netherlands, ensuring reliable cross-border energy flow and supporting both grid stability and market integration.

Champlain Hudson Power Express

The Champlain Hudson Power Express (CHPE) is a renewable power transmission project spanning 339 miles from the U.S.-Canadian border to New York City, designed to deliver clean hydroelectric power from Quebec to meet 20% of New York City's electricity needs when it becomes fully operational in spring 2026.

CHPE utilizes high-voltage direct current (HVDC) technology for efficient long-distance power transmission, with cables being installed underground and underwater along the route, terminating at a converter station in Astoria, Queens, where the HVDC power will be converted to AC for distribution into New York City's energy grid.

China Southern Power Grid

China Southern Power Grid (CSG) is one of two major state-owned power grid companies in China, responsible for the investment, construction, and management of power transmission and distribution across five southern provinces—Guangdong, Guangxi, Yunnan, Guizhou, and Hainan—serving nearly 300 million people and accounting for 20% of the country's grid. Headquartered in Guangzhou and established in 2002, CSG plays a key role in cross-regional power transmission and power trading in China.

CSG is actively involved in the development, construction, and operation of high-voltage direct current (HVDC) transmission projects that enable efficient, long-distance electricity transfer across regions, helping to ensure stable and reliable power supply throughout its service territory.

Clean Path NY

Clean Path NY is a major $11 billion infrastructure initiative designed to deliver emissions-free renewable energy to New York, developed through a public-private partnership between Invenergy, energyRe, and the New York Power Authority. The project integrates over 20 new wind and solar generation assets, energy storage, and advanced transmission, with the goal of achieving New York's ambitious climate targets by reducing fossil fuel emissions and supporting economic and community development statewide.

Central to Clean Path NY is a 1,300 MW, 400kV underground high-voltage direct current (HVDC) transmission line, stretching 281 km and capable of transmitting large volumes of renewable energy efficiently from upstate sources to New York City, providing a backbone for the state’s renewable energy integration.

Conexión Kimal-Lo Aguirre

Conexión Kimal-Lo Aguirre is a company established to develop, construct, and operate Chile's first high-voltage direct current (HVDC) transmission line, linking the Kimal substation in northern Antofagasta with Lo Aguirre near Santiago. This 1,342-kilometer project, set to begin construction in 2025 and complete by 2029, will transport up to 3,000 MW of electricity—representing about a quarter of the country's peak demand—and plays a vital role in enabling the integration of renewable energy and accelerating Chile’s decarbonization plans.

The company's core activities focus on HVDC technology, making it the first to implement such a large-scale direct current transmission system in Chile, which will significantly reduce energy losses over long distances and support the national grid with advanced converter stations and infrastructure.

Copenhagen Infrastructure Partners

Copenhagen Infrastructure Partners (CIP) is a global leader in energy infrastructure investments, specializing in the development and construction of large-scale renewable energy projects such as offshore and onshore wind, solar PV, and other green technologies. With over €32 billion raised and a project pipeline of 120 GW, CIP is one of the world’s largest dedicated renewables investment firms and aims for €100 billion in renewable energy investments by 2030.

In high-voltage direct current (HVDC), CIP pursues investments and development opportunities to support the transmission needs of complex, large-scale renewable projects, helping to connect remote generation with major demand centers as part of their commitment to advancing modern energy infrastructure.

Crnogorski elektroprenosni sistem AD (CGES)

Crnogorski elektroprenosni sistem AD (CGES) is Montenegro's national electric power transmission system operator, headquartered in Podgorica. Established in 2009 after separating from EPCG, the company is majority-owned by the Government of Montenegro and manages the country’s high-voltage transmission network, interconnecting with neighboring power systems and being a member of the European Network of Transmission System Operators for Electricity.

CGES is notably active in HVDC through its joint project with Italian operator Terna, constructing a 450-kilometre, 600 MW submarine HVDC cable linking Montenegro (Tivat) and Italy (Pescara), which serves as a strategic interconnection for regional electricity exchange and integration.

Cross Sound Cable

Cross Sound Cable Company, LLC is a high voltage electrical transmission company that operates a 330 MW submarine cable system providing electricity transmission capacity between the electric grids of New England and Long Island, New York. The company is noted for its strong commitment to safety, environmental stewardship, and sustainability in managing its operations and stakeholder relationships.

Cross Sound Cable is specifically engaged in high-voltage direct current (HVDC) activities, operating a 25-mile HVDC Light system—manufactured by ABB and now also noted by Hitachi Energy—which uses advanced extruded submarine cables to enhance grid reliability, enable bidirectional energy flow, and support power trading between the New York and New England markets.

Cyprus Transmission System Operator

The Cyprus Transmission System Operator (TSOC) is a public entity established to manage and operate the country's electricity transmission system, in alignment with European Union directives and national legislation. Its main functions include the operation of high-voltage transmission infrastructure and the management of the electricity market in Cyprus.

In relation to HVDC (High Voltage Direct Current) activities, there is currently no specific information indicating direct involvement or significant projects in HVDC by TSOC.

Dogger Bank Wind Farm

Dogger Bank Wind Farm is the world's largest offshore wind farm, located more than 130km off the North East coast of England with a capacity of 3.6GW, capable of powering up to 6 million homes annually. The project is being constructed in three 1.2GW phases known as Dogger Bank A, B, and C in the UK's North Sea waters.

Dogger Bank Wind Farm has implemented high-voltage direct current (HVDC) transmission system, marking the first-time use of HVDC technology on a UK wind farm, which allows power from the offshore wind farm to be efficiently transmitted to the UK's national grid.

Environmental Defense Fund

The Environmental Defense Fund (EDF) is a global environmental organization that focuses on delivering bold solutions to address climate pollution and strengthen the resilience of people and nature, working in more than 30 countries with a commitment to science, economics, and practical approaches to environmental challenges.

While the search results do not specifically mention EDF's activities in HVDC (High-Voltage Direct Current), the organization does work broadly on energy issues including pollution reduction from transportation and various climate stability initiatives that may intersect with power transmission technologies.

EGL 1

EGL 1 is a £2.5 billion joint venture between SP Energy Networks and National Grid Electricity Transmission, developing and operating a high-capacity subsea electricity superhighway connecting southeast Scotland (Torness) to northeast England (Hawthorn Pit), with construction underway in 2025 and targeted completion by 2029.

EGL 1 is installing a 190–196 km high voltage direct current (HVDC) subsea cable, complemented by converter stations at each end, to enable efficient long-distance transmission of renewable energy and to strengthen grid resilience between the two countries.

Eastern Green Link 2

Eastern Green Link 2 (EGL2) is a 505km electricity superhighway being developed as a joint venture between SSEN Transmission and National Grid Electricity Transmission, designed to transfer power between Scotland and England via a subsea cable with enough capacity to power two million homes. The project represents the largest ever single investment in the UK transmission system at over £4bn and is scheduled to be operational by 2029.

For HVDC specifically, EGL2 will utilize high voltage direct current technology with a capacity of 2 gigawatts at 525kV transmission voltage, with Hitachi Energy responsible for delivering the HVDC technology at the converter stations that will enable efficient long-distance bi-directional electricity transmission between the two countries.

EirGrid

EirGrid is the state-owned electricity transmission system operator for Ireland, responsible for the development, management, and operation of the national electricity grid to ensure a secure and sustainable supply of power. The company plays a central role in Ireland's transition to a low-carbon future by planning for increased renewable integration and future-proofing the grid.

EirGrid is directly involved in HVDC activities through its development, ownership, and operation of the East-West Interconnector and Greenlink Interconnector connecting Ireland to Great Britain, and by co-developing the Celtic Interconnector to France with RTE.

ElecLink

ElecLink operates a 1,000MW electricity interconnector between the United Kingdom and France, running two direct current cables through the Channel Tunnel and significantly enhancing energy security for both countries. The project is strategically important for the European energy market, offering infrastructure that manages peaks and troughs in energy demand while aiming for minimal environmental impact.

Their core activity in HVDC (High Voltage Direct Current) involves the operation of the two direct current cables within the Channel Tunnel, which enable flexible electricity transfer between the UK and France.

Eletrobras

Eletrobras (Centrais Elétricas Brasileiras S.A.) is the leading electricity generation and transmission company in Brazil and the largest utility in Latin America, responsible for more than 22% of Brazil’s generation capacity and managing nearly 38% of the country’s transmission network. Founded in 1962 and now a publicly traded company, Eletrobras operates a predominantly renewable energy portfolio, with the vast majority of its power generated from low-emission sources such as hydro, wind, and solar.

Eletrobras is a key player in high-voltage direct current (HVDC) transmission in Brazil, participating in major HVDC projects that are integral to the country’s long-distance, high-capacity power transmission infrastructure.

Electroenergien Sistemen Operator

Electroenergien Sistemen Operator (ESO) is the independent transmission system operator of Bulgaria, responsible for managing and operating the country's high-voltage electricity transmission grid, which spans more than 15,000 km of power lines and 297 substations. ESO oversees operational regime planning, control of the power system, and collaborates with neighboring countries' networks to ensure the efficient and reliable functioning of Bulgaria's electricity system.

Regarding HVDC activities, there is no specific mention of HVDC operations or projects in the available information about ESO, indicating that their primary focus is on AC high-voltage transmission within the national grid.

Elektro-Slovenija

Elektro-Slovenija, d.o.o. (ELES) is the state-owned electricity transmission system operator of Slovenia, established in 1991 by the government. ELES is responsible for the exclusive management and operation of the country’s high-voltage transmission network, ensuring reliable and high-quality electrical power delivery through over 2,500 km of transmission lines, and plays a key role in integrating the Slovenian grid with the wider European energy system.

ELES is engaged in the ongoing development of Slovenia’s transmission infrastructure and implements advanced technologies, including activities related to high-voltage direct current (HVDC) systems, as part of its efforts to maintain a reliable and modern grid.

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.

Elia Transmission Belgium

Elia Transmission Belgium is the Belgian transmission system operator responsible for managing the high-voltage electricity grid, ensuring reliable electricity transmission from producers to distribution system operators and major industrial users. Based in Brussels, Elia operates both in Belgium and Germany, overseeing the balance between electricity production and consumption, maintaining grid infrastructure, and facilitating cross-border electricity trading.

Elia is active in high-voltage direct current (HVDC) infrastructure, particularly through its offshore grid and interconnection projects, which use HVDC technology to support integration of renewable energy and facilitate electricity exchange with neighboring countries.

Emera

Emera Inc. is a publicly traded Canadian energy holding company headquartered in Halifax, Nova Scotia, serving approximately 2.5 million utility customers across Canada, the United States, and the Caribbean. Its core operations involve the generation, transmission, and distribution of electricity and natural gas through multiple regulated utilities, with a strong focus on delivering reliable and cleaner energy solutions while supporting decarbonization and digitalization efforts.

Emera is actively engaged in high-voltage direct current (HVDC) activities, most notably through ownership and operation of the Maritime Link, a significant HVDC transmission project connecting Newfoundland and Nova Scotia to support regional energy integration and renewable energy delivery.

EnBW

EnBW Energie Baden-Württemberg AG is one of Germany’s largest integrated energy companies, operating as an energy producer and supplier with a focus on electricity, gas, and water services for millions of customers across Germany and Europe. The company is known for its commitment to the energy transition, offering a range of services from power generation—including renewables—to grid infrastructure development and e-mobility initiatives.

In the high-voltage direct current (HVDC) sector, EnBW is involved in the development and operation of advanced grid infrastructure to support the secure transmission of electricity over long distances and enable the integration of renewable energies.

Energinet

Energinet is an independent state-owned enterprise responsible for owning, operating, and developing Denmark's electricity and natural gas transmission systems. The company ensures a high level of security of supply and plays a central role in Denmark’s transition to a carbon-neutral energy system by managing the integration of renewable energy sources and maintaining key energy infrastructure.

Energinet is directly involved in HVDC (high-voltage direct current) activities as the co-owner and operator of electrical interconnections to neighboring countries such as Norway, Sweden, and Germany, allowing efficient cross-border transmission and support for renewable energy integration.

Engie

ENGIE is a global leader in the Net Zero energy transition, with a diverse portfolio of renewable and low-carbon energy solutions and 8.5 GW of renewable and battery capacity under construction across more than 100 projects worldwide. The company maintains a solid financial position with €4.0 billion in cash flow in Q1 2025 and is focused on becoming the "best Energy Transition Utility" through its unique business and geographical mix.

While ENGIE's HVDC activities aren't specifically detailed in the search results, the company is involved in power networks expansion and has been awarded a new electric substation in Chile, indicating their commitment to power transmission infrastructure as part of their energy transition strategy.

Equinor

Equinor is a Norwegian multinational energy company headquartered in Stavanger, Norway, and is one of the world’s largest suppliers of oil, gas, and energy to Europe. The company operates in more than 20 countries, focusing on oil, gas, renewables, and low-carbon solutions, with a long-term ambition to become a net-zero energy company by 2050.

Equinor is actively involved in the development and operation of HVDC (High Voltage Direct Current) technology, particularly for connecting offshore wind projects to energy grids as part of its commitment to expanding renewable energy and enabling the energy transition.

Eskom

Eskom is South Africa's largest state-owned electricity utility and the biggest producer of electricity in Africa, generating about 95% of the country's electricity and supplying around 45% of the electricity used across the continent. The company is responsible for generating, transmitting, distributing, purchasing, and selling electricity, supporting economic growth and serving over 7 million customers throughout the country.

In the field of HVDC, Eskom has developed and operates major high-voltage direct current transmission systems, notably facilitating the long-distance transfer of large amounts of power within South Africa and across its borders.

Fingrid

Fingrid Oyj is Finland's transmission system operator responsible for electricity transmission in the high-voltage transmission system across Finland. As a natural monopoly owned primarily by the Finnish state (53.1%) and financial institutions (46.9%), Fingrid secures the nation's energy supply by maintaining the nationwide main grid and ensuring a constant balance between electricity production and consumption.

Within HVDC operations, Fingrid manages cross-border electricity transmission connections that link Finland to the Nordic power system, Central European power system, and Estonia. These HVDC interconnections are crucial for safeguarding power system security during peak demand periods and enabling a functioning electricity market across borders.

Great River Energy

Great River Energy is a not-for-profit electric cooperative based in Minnesota, serving as the state's second largest electric utility and one of the biggest generation and transmission cooperatives in the United States. The cooperative delivers wholesale electricity to more than 1.7 million people through 27 member distribution cooperatives, leveraging a diverse portfolio of renewable and conventional energy resources.

Great River Energy owns and operates a unique high-voltage direct-current (HVDC) transmission line as part of its extensive transmission infrastructure, which helps efficiently deliver electricity across long distances to member cooperatives.

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.

Grid United

Grid United is an independent transmission company focused on developing next-generation energy infrastructure to create a more resilient and efficient electric system across the United States. The company is actively engaged in large-scale projects and collaborations to connect regional energy markets, increase grid reliability, and support the integration of renewable energy sources.

Grid United is a key developer of high-voltage direct current (HVDC) transmission lines, most notably leading the North Plains Connector project, which aims to be the nation’s first HVDC link connecting three regional electric markets. Additionally, the company is developing several other HVDC lines in western states to enhance grid interconnections and facilitate the movement of clean energy between regions.

Hydro-Québec

Hydro-Québec is the largest power utility in Canada, generating, transmitting, and distributing electricity primarily from clean and renewable hydropower sources, with 95% of its production coming from hydroelectricity. Headquartered in Montreal and owned by the province of Quebec, it is a major player in the global hydropower industry and a cornerstone of Quebec's economy.

Hydro-Québec has been at the forefront of high-voltage direct current (HVDC) technology, utilizing HVDC systems to transmit electricity efficiently over long distances and to export clean energy to markets in northeastern North America.

Hydroelectrica de Cahora Bassa

Hydroelectrica de Cahora Bassa (HCB) operates the Cahora Bassa Dam, the largest hydroelectric power plant in southern Africa, located in Tete province on the Zambezi River. The company manages a 2,060 MW hydropower facility and is majority-owned by the Mozambican state, with additional shares held by Portuguese and Mozambican entities.

HCB plays a critical role in high-voltage direct current (HVDC) transmission, exporting most of its generated electricity to South Africa through a 1,800 km HVDC system that includes converter stations at Songo (Mozambique) and Apollo (South Africa), utilizing dedicated high-voltage lines for efficient long-distance power delivery.

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.

Iberdrola

Iberdrola is a global leader in renewable energy and smart grids, operating in countries with strong credit ratings and serving nearly 100 million people across dozens of nations while employing over 40,000 staff and managing assets exceeding €150 billion.

Iberdrola is actively shaping the future of transmission infrastructure with ongoing investments in clean energy integration and large-scale transmission projects, though its direct involvement in HVDC projects is typically as developer, operator, or owner, leveraging its vast expertise in connecting international renewable generation to major grids.

Independent Power Transmission Operator (IPTO)

The Independent Power Transmission Operator (IPTO or ADMIE) is the national transmission system operator for Greece, responsible for the operation, control, maintenance, and development of the Hellenic Electricity Transmission System. Its core mission is to ensure the reliable and efficient supply of electricity throughout Greece while promoting sustainability, transparency, and equal access to the transmission network.

IPTO is actively engaged in the development and operation of high-voltage direct current (HVDC) systems, including major submarine and underground cable interconnections that link the Greek mainland with the islands and neighboring countries, supporting both energy reliability and cross-border electricity exchanges.

Inelfe

Inelfe (Interconexión Eléctrica Francia-España) is a joint venture established in 2008 by the national grid operators of Spain (Red Eléctrica de España, REE) and France (Réseau Transport d’Électricité, RTE), each holding an equal stake. Its primary role is to develop, construct, and operate electricity interconnections between France and Spain to enhance electricity exchange and grid stability across the Iberian Peninsula and Europe.

Inelfe has played a key role in HVDC projects, notably overseeing the Baixas–Santa Llogaia underground interconnection and the Biscay Gulf submarine link, both of which use high-voltage direct current technology to significantly boost cross-border transmission capacity between Spain and France.

Intermountain Power Agency

The Intermountain Power Agency (IPA) is a cooperative entity formed in 1977 by 23 Utah municipalities to generate and deliver electricity through the Intermountain Power Project (IPP), located in western Utah. IPA owns and oversees the IPP, which has been a major power provider since 1986, supplying energy to participants including municipalities in Utah and California and transitioning from coal to blended natural gas and hydrogen generation.

IPA operates both alternating current (AC) and direct current (DC) transmission systems, notably including high-voltage direct current (HVDC) infrastructure for long-distance power delivery, particularly serving southern California utilities.

Invenergy

Invenergy is a leading American-based multinational power generation company that develops, builds, owns, and operates renewable and clean energy facilities, including wind, solar, natural gas, and energy storage projects across North America, South America, Europe, and Asia. Headquartered in Chicago, Invenergy is recognized as the largest privately-held renewable energy company in North America, with over 33,000 megawatts of projects developed in operation, construction, or contracted.

Within the HVDC (High Voltage Direct Current) sector, Invenergy is involved in the development and operation of large-scale transmission infrastructure projects designed to deliver clean energy efficiently over long distances.

J-POWER

J-POWER, operating under the name Electric Power Development Co., Ltd., is a prominent electric utility company based in Tokyo, Japan. Established in 1952, J-POWER has a 70-year history in power development, offering a diverse portfolio of power generation sources including hydroelectric, geothermal, wind power, and thermal power, with a focus on transitioning towards a carbon-neutral society.

While J-POWER's primary focus is on a broad range of power generation and transmission technologies, specific activities related to High Voltage Direct Current (HVDC) systems are not explicitly highlighted in their current business profile. However, their extensive experience in power transmission and transformation facilities could potentially support the integration of HVDC systems in their operations.