New York State could slash total transmission costs by at least $500m and enable the next 7.2GW of offshore wind capacity by employing an ‘open access’ multi-user approach as opposed to laying radial export lines from individual projects, according to a new study by the Brattle Group.

Other benefits from an integrated grid design would include better utilisation of lease areas and limited points of interconnection, greater competition from transmission developers and facilitation of commercial off-take arrangements with non-utility customers.