Patent ID: 8206110

Claim:
In a wind turbine having at least one pair set of blades, a balancing assembly comprising: a ballast; a ballast receiving structure on at least one blade of said pair set of blades; said ballast having a threaded portion for engagement with said ballast receiving structure, said ballast having at least one end configured with a drive socket for driving said ballast into said ballast receiving structure, said at least one end having a head configured to abut an end face of said ballast receiving structure; and at least one ballast disk for placement on said threaded portion, between said head and said end face, wherein said at least one ballast disk is retained in position upon tightening of said ballast into said ballast receiving structure; wherein said ballast is capable of being trimmed to achieve a predetermined mass necessary to achieve a balance between the blades in said pair set of blades.