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ABB Launches Record-Setting Subsea Cable System

August 25, 2014 By Karen Henry

abb-cable-energy-manageABB has developed and tested a 525 kV extruded high-voltage direct current (HVDC) cable system to make renewable energy installations more efficient and cost-effective.

The cable system will more than double the power capacity to about 2,600 MW from 1,000 MW. It will also expand the cable’s reach to distances of 1,500 kilometers, up from less than 1,000 kilometers, while keeping transmission losses under 5 percent.

The 525 kV cable system can be deployed in subsea and underground applications, making it ideal for efficient power delivery through densely populated or environmentally sensitive areas or coastal and open-sea applications.

By enabling more power over greater distances with reduced losses, ABB’s 525 kV cable technology could help countries and utilities seeking to enable their electricity transmission systems to integrate more renewable energy being generated by distant solar and wind installations.

A single pair of 525 kV extruded HVDC cables could, for example, transmit enough power from giant offshore wind farms in to supply two million households.

ABB was recently awarded a contract to provide the onshore grid connection for the first phase of the MeyGen tidal stream energy project in Scotland’s Pentland Firth—Europe’s largest tidal energy project to date.



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