The project involves the installation of 720km of subsea cables, 10km on the onshore cables and the construction of converter stations. The onshore converter stations will be handling the AC to DC and vice versa to feed the national grids. The converter process generates undesirable heat which requires continuous cooling to avoid overheating in the converters.
Pollution control were in involved in the design manufacturing and installation of a compete water treatment system (WTS) At the UK converter station built by Hitachai energy to treat 200m cubic meters hour throughput. 
