Abstract: A wind turbine (100) comprising a turbine generator (101), rotating mast (102) and a bedplate (103) which is the foundation of the turbine, and three vertical airfoils (104, 105) positioned parallel forming a diffuser, where two of them are side airfoils (104) and the third one, which is positioned in an equal distance between the side airfoils (104), is the central airfoil (105), wherein three vertical airfoils (104, 105) have cross-section diminishing upwardly and the central airfoil (105) comprises in its leeward area a mounted turbine generator (101) having at least one rotor connected to at least one electric generator, wherein said turbine generator (101) is located inside the central airfoil (105), the central airfoil (105) in its cross-section has a shape of biconvex airfoil section preferably drop-shaped.

Abstract: A wind turbine (100) comprising a turbine generator (101), rotating mast (102) and a bedplate (103) which is the foundation of the turbine, and three vertical airfoils (104, 105) positioned parallel forming a diffuser, where two of them are side airfoils (104) and the third one, which is positioned in an equal distance between the side airfoils (104), is the central airfoil (105), wherein three vertical airfoils (104, 105) have cross-section diminishing upwardly and the central airfoil (105) comprises in its leeward area a mounted turbine generator (101) having at least one rotor connected to at least one electric generator, wherein said turbine generator (101) is located inside the central airfoil (105), the central airfoil (105) in its cross-section has a shape of biconvex airfoil section preferably drop-shaped.