ABB has won an order worth over $800 million from Scottish Hydro Electric (SHE) Transmission plc to provide the Caithness-Moray high-voltage direct current (HVDC) power transmission link, which will connect the electricity grid on either side of the Moray Firth in northern Scotland. This follows a favorable decision by Ofgem (Office of Gas and Electricity Markets), an independent National Regulatory Authority, on the need for the link.

ABB will design, engineer, supply and commission two 320 kilovolt land-based HVDC Light converter stations, one rated at 1,200 megawatts (MW) at Blackhillock in Moray and another rated at 800 MW situated at Spittal in Caithness.

ABB’s scope of supply also includes submarine and underground cables covering a total transmission length of nearly 160 kilometers. The link is scheduled to become operational in 2018.

“We are pleased to support this major transmission project that will enable integration of a significant amount of renewable energy into the grid and supply clean, emission-free electricity to millions of people,” said Claudio Facchin, head of ABB’s Power Systems division. ”ABB pioneered HVDC technology and continues to lead the way through innovation, as seen from several recent breakthroughs.”

ABB’s HVDC Light solution leads the way in VSC (Voltage Source Converter) technology. The company has delivered 13 of the 14 commissioned VSC links in the world. HVDC Light continues to be a preferred solution for long-distance underground and underwater power transmission links.

HVDC Light technology is increasingly being deployed across a range of applications such as the connection of remote renewables, cross-border interconnections, power-from-shore feeding offshore oil and gas platforms, and city center in-feeds where space is a constraint.