A crane lifts a propeller to the top of a power-generating windmill turbine in the northern German city of Hamburg

 
A crane lifts a propeller to the top of a power-generating windmill turbine in the northern German city of Hamburg
A crane lifts a propeller to the top of a power-generating windmill turbine in the northern German city of Hamburg March 20, 2009. The turbine can produce 6 megawatts of green energy and is the first of two new power-generating windmills, built in the harbour area of Hamburg. REUTERS/Morris Mac Matzen (GERMANY BUSINESS ENERGY ENVIRONMENT)