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Zurich, Switzerland, Published date 3 August, 2020

Hitachi ABB Power Grids wins major HVDC order

Select category Energy Research & Development Sustainability

Hitachi ABB Power Grids wins major HVDC order linking Shetland islands to the UK grid: First multi-terminal HVDC interconnection in Europe will boost renewable energy and enhance power security

Zurich, 03.08.2020

Hitachi ABB Power Grids has won a major order from Scottish and Southern Electricity Networks (SSEN) Transmission, part of the UK energy giant SSE plc, to enable Europe’s first multi-terminal high-voltage direct-current (HVDC) interconnection. The link, which will connect Shetland to the UK transmission system for the first time, will enhance security of power supply and help transmit wind power generated on the islands, contributing to the UK’s decarbonization target of bringing all greenhouse gas emissions to net zero by 2050.

As part of the project, Hitachi ABB Power Grids will deliver and commission an innovative HVDC system, facilitating a multi-terminal link, providing flexibility to transfer power in multiple directions, based on supply and demand, with minimal power losses.This will support power exchange and cost optimization while lowering of carbon footprint.

The HVDC system will convert the harnessed wind power from Alternating Current to Direct Current at an HVDC Converter Station. This power will then be transmitted via underground and subsea cables to an HVDC switching station at Caithness, in the north of Scotland. It will then be transferred via the Caithness Moray HVDC link (previously executed by Hitachi ABB Power Grids), before being converted back to Alternating Current for onward transmission to meet electricity demand in the north of Scotland and beyond, forming a three terminal DC-system.

“This innovative HVDC solution will enable SSEN Transmission to efficiently connect and transport renewable energy and deliver clean power to consumers while enhancing grid reliability.” said Niklas Persson, Managing Director of the Grid Integration business at Hitachi ABB Power Grids. “This project is another example of our new business model focused on our core technology, and reinforces our commitment to a sustainable energy future as the partner of choice for enabling a stronger, smarter and greener grid”.

Hitachi ABB Power Grids Ltd.

Rebecca Bleasdale

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