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Press Release Zurich, Switzerland 21-10-2022

3 min read

Hitachi Energy hands over North Sea Link, the first interconnector between Norway and the UK, exchanging renewable energy

Exchanging Renewable Energy - North Sea Link
Hitachi Energy’s high-voltage direct current (HVDC) technology, interconnects Norway’s and the UK’s power grids, exchanging renewable energy in North Sea.

Hitachi Energy, a global technology leader that is advancing a sustainable energy future for all, today announced it has handed over the North Sea Link power interconnector to Statnett, the national power grid operator in Norway, and National Grid, which owns and manages gas and electricity infrastructure in the UK and northeastern United States.

The link, which is the world’s longest subsea power interconnector, is enabled by HVDC Light®, Hitachi Energy’s high-voltage direct current (HVDC) technology, interconnects Norway’s and the UK’s power grids, which are separated by the North Sea.

North Sea Link has the capacity to transmit 1,400 megawatts (MW) of renewable power through a 720-kilometer HVDC underwater cable, which is enough electricity to supply 1.4 million UK homes.*1 It allows Norway to import wind power from the UK and the UK to import hydropower from Norway. This efficient power exchange will help increase grid resilience in both countries, reduce fossil-fuel power generation in the UK and avoid 23 million tons of carbon emissions by 2030.*1

“North Sea Link is a cornerstone of Europe’s carbon-neutral energy future, interconnecting national power grids and enabling the flow of electricity across borders and seas,” said Niklas Persson, Managing Director of Hitachi Energy’s Grid Integration business. “The link increases power supply reliability and security in both countries, accelerates progress toward their sustainability targets, and facilitates power trading and economic growth.”

“This is an exciting day for National Grid and an important step as we look to diversify and decarbonize the UK’s electricity supply. North Sea Link is a truly remarkable feat of engineering,” said Nicola Medalova, Managing Director for National Grid Interconnectors. “North Sea Link is a great example of two countries working together to maximize their renewable energy resources for mutual benefit.”

Hitachi Energy designed, engineered, supplied and commissioned the enabling technology for the interconnector – two HVDC Light® converter stations, one at Blyth in northeast England and the other at Kvilldal, Norway. The stations convert the alternating current power from the grid into direct current for efficient transmission in the subsea cable, then reconvert it back to alternating current for use in the receiving grid.

North Sea Link 720km subsea interconnection map

Note to editors:

Hitachi Energy’s HVDC solution combines world-leading expertise in HVDC converter valves; the MACH digital control platform*2, converter power transformers and high-voltage switchgear; as well as system studies, design and engineering, supply, installation supervision and commissioning.

HVDC Light® is a voltage source converter technology developed by Hitachi Energy, which was launched over 25 years ago. It is the preferred technology for many grid applications, including interconnecting countries, integrating renewables and “power-from-shore” connections to offshore production facilities. HVDC Light’s defining features include uniquely compact converter stations and exceptionally low electrical losses.

Hitachi Energy pioneered commercial HVDC technology almost 70 years ago and has delivered more than half of the world’s HVDC projects.

*1 National Grid
*2 Modular Advanced Control for HVDC (MACH)

About Hitachi Energy


Hitachi Energy is a global technology leader that is advancing a sustainable energy future for all. We serve customers in the utility, industry and infrastructure sectors with innovative solutions and services across the value chain. Together with customers and partners, we pioneer technologies and enable the digital transformation required to accelerate the energy transition towards a carbon-neutral future. We are advancing the world’s energy system to become more sustainable, flexible and secure whilst balancing social, environmental and economic value. Hitachi Energy has a proven track record and unparalleled installed base in more than 140 countries. Headquartered in Switzerland, we employ around 40,000 people in 90 countries and generate business volumes of approximately $10 billion USD.  
https://www.hitachienergy.com

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About Hitachi, Ltd.


Hitachi drives Social Innovation Business, creating a sustainable society with data and technology. We will solve customers' and society's challenges with Lumada solutions leveraging IT, OT (Operational Technology) and products, under the business structure of Digital Systems & Services, Green Energy & Mobility, Connective Industries and Automotive Systems. Driven by green, digital, and innovation, we aim for growth through collaboration with our customers. The company’s consolidated revenues for fiscal year 2021 (ended March 31, 2022) totaled 10,264.6 billion yen ($84,136 million USD), with 853 consolidated subsidiaries and approximately 370,000 employees worldwide. For more information on Hitachi, please visit the company's website at https://www.hitachi.com.

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