A wind turbine generator comprising: at least one wind turbine blade; and a hub assembly comprising: a substantially cylindrical wall defining a substantially annular hub cavity; at least one substantially triangular frame inserted into said hub cavity and fixedly coupled to said cylindrical wall, said substantially triangular frame comprising a plurality of structural members defining at least one passage (148, 150) and at least one cavity (154, 156), said structural members respectively comprising: a plurality of blade flange plates, each flange plate being coupled to a portion of said wall and defining a substantially annular passage configured to receive a blade pitch bearing and blade; a front flange plate positioned at a nose end of the hub assembly and coupled to a portion of said wall; a rear flange plate positioned at a generator end of said hub assembly and coupled to a portion of said wall; and a plurality of polygonal support plates, each support plate being coupled to: said cylindrical wall; two of said blade flange plates; and said front flange plate or said rear flange plate; at least one blade attachment apparatus comprising at least one blade support sleeve fixedly coupled to at least a portion of said wall, said sleeve configured to receive at least a portion of said wind turbine blade; and a blade pitch bearing comprising a blade portion and a hub portion slidingly coupled to the blade portion. at least one wind turbine blade; and a hub assembly comprising: a substantially cylindrical wall defining a substantially annular hub cavity; at least one substantially triangular frame inserted into said hub cavity and fixedly coupled to said cylindrical wall, said substantially triangular frame comprising a plurality of structural members defining at least one passage (148, 150) and at least one cavity (154, 156), said structural members respectively comprising: a plurality of blade flange plates, each flange plate being coupled to a portion of said wall and defining a substantially annular passage configured to receive a blade pitch bearing and blade; a front flange plate positioned at a nose end of the hub assembly and coupled to a portion of said wall; a rear flange plate positioned at a generator end of said hub assembly and coupled to a portion of said wall; and a plurality of polygonal support plates, each support plate being coupled to: said cylindrical wall; two of said blade flange plates; and said front flange plate or said rear flange plate; at least one blade attachment apparatus comprising at least one blade support sleeve fixedly coupled to at least a portion of said wall, said sleeve configured to receive at least a portion of said wind turbine blade; and a blade pitch bearing comprising a blade portion and a hub portion slidingly coupled to the blade portion. a substantially cylindrical wall defining a substantially annular hub cavity; at least one substantially triangular frame inserted into said hub cavity and fixedly coupled to said cylindrical wall, said substantially triangular frame comprising a plurality of structural members defining at least one passage (148, 150) and at least one cavity (154, 156), said structural members respectively comprising: a plurality of blade flange plates, each flange plate being coupled to a portion of said wall and defining a substantially annular passage configured to receive a blade pitch bearing and blade; a front flange plate positioned at a nose end of the hub assembly and coupled to a portion of said wall; a rear flange plate positioned at a generator end of said hub assembly and coupled to a portion of said wall; and a plurality of polygonal support plates, each support plate being coupled to: said cylindrical wall; two of said blade flange plates; and said front flange plate or said rear flange plate; a plurality of blade flange plates, each flange plate being coupled to a portion of said wall and defining a substantially annular passage configured to receive a blade pitch bearing and blade; a front flange plate positioned at a nose end of the hub assembly and coupled to a portion of said wall; a rear flange plate positioned at a generator end of said hub assembly and coupled to a portion of said wall; and a plurality of polygonal support plates, each support plate being coupled to: said cylindrical wall; two of said blade flange plates; and said front flange plate or said rear flange plate; said cylindrical wall; two of said blade flange plates; and said front flange plate or said rear flange plate; at least one blade attachment apparatus comprising at least one blade support sleeve fixedly coupled to at least a portion of said wall, said sleeve configured to receive at least a portion of said wind turbine blade; and a blade pitch bearing comprising a blade portion and a hub portion slidingly coupled to the blade portion.