ABB has secured a $54m order for an underground and underwater power link that will connect Denmark’s existing grids for the first time and help stabilise power supplies.

ABB will supply the cable for the high-voltage direct current (HVDC) link that is scheduled for completion in 2010, creating the country’s first nationwide electricity network. The contract was awarded by, the state-owned operator of the Danish gas and electricity transmission networks.

The 58km power link with a capacity of 600 megawatts will run underwater for 32km and underground for the rest of the stretch. ABB says it will stabilise power supplies on both sides of the strait that divides the two halves of the grid.

The cable will connect Denmark’s western grid, which is already linked to the German network, to the country’s eastern grid, which has an electricity partnership with Sweden. This will create a national electricity network for the first time in Danish history.

ABB pioneered HVDC technology in the 1950s and its projects include the world’s longest land cable, the 180km Murraylink in


, and the world’s longest underwater high-voltage cable that is currently under construction to link


and the