Clipper Windpower Plc is engaged in the design, engineering and manufacturing of wind turbines and developing wind energy projects, including engineering, construction and plant operation. The Group also retains partial ownership in certain wind energy projects. During the year ended December 31, 2009, it produced 104 turbines and sold 259 turbines in the United States and Mexico. The Company operates in two segments: turbine technology and manufacturing, and wind project development. Turbine technology and manufacturing includes designing, manufacturing and the sale and servicing of wind turbines. Wind project development includes activities associated with developing wind energy facilities, including wind resource assessment, site planning, site control and interconnection to the power grid.