Vietnam, with its advantageous coastal geography, possesses significant potential for the development of wind energy. This paper utilizes GIS technology in combination with the Fuzzy Logic method to evaluate the feasibility of establishing offshore wind farms. The study incorporates 12 criteria related to natural resources, socio-economics, and the environment, including wind speed, wind energy density, seabed bathymetry, distance to oil/gas fields, distance to gas pipelines, distance to submarine cables, distance to fishing areas, distance to seaports, distance to shipping lanes, distance to protected areas, distance to shoreline, and distance to sea turtle feeding areas. The results indicate that the potential area for offshore wind farm development covers more than 130,230 km2 , equivalent to 886.87 GW. Among this, approximately 11.00% (nearly 14,330 km2 , equivalent to 142.35 GW) of the potential area is suitable for nearshore wind farms with water depths below 20 m. Additionally, around 116,000 km2 (744.52 GW) of the area exhibits potential for constructing fixed and floating foundation wind farms with water depths ranging from 20 to 1,000 m.
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