The cluster of 10 wind turbines atop Brodie Mountain in Hancock will soon grow to twelve.

The Berkshire Eagle reports that Berkshire Wind Power Cooperative Corp. is planning to install two additional turbines to its Berkshire Wind project in the fall.

Two 2.3-megawatt capacity turbines will be erected just to the north of the existing ten 1.5-megawatt turbines. The new turbines will bring the wind farm’s generating capacity to 19.6 megawatts. The cooperative is an initiative of the Massachusetts Municipal Wholesale Electric Co. and 14 of its member municipal utilities participating in the first phase of the project.