In the final document now issued, the World Bank and ESMAP delineate three broad areas suitable for offshore wind development and note that the western and southern coasts have the most suitable wind speeds and technical conditions.

For the first wind turbines that would be installed in Sri Lankan waters, the roadmap identifies two large areas in the Gulf of Mannar that could be suitable for building the first offshore wind farm(s). The two areas, which are close to Mannar Island and Puttalam, have shallow waters suitable for fixed-bottom foundations and moderate wind speeds averaging 8-9 m/s.