Also relevant is private sector support for NSCOGI. When looked at collectively, existing and planned offshore energy investmentsare suggestive of this possibility. There are already several sub-seainterconnectors between European grids. Recent examples includethe NorNed (Dutch-Norwegian), BritNed (British-Dutch) or East-West (British-Irish) interconnectors. However, these are ‘trading’cables not connected to offshore wind farms. These cables are vitalfor electricity trading because the Nordic states have among the cheapest and most reliable electricity supply, because of Norway’slarge-scale hydro-electric storage capacity.