Siemens also won a 17-year service agreement for the €1.25bn ($1.42bn) project 35km off the coast of Zeebrugge.
"We are pleased that Rentel NV has selected Siemens for our first project in the Belgian North Sea," says Michael Hannibal, chief executive for offshore at Siemens Wind.
"Our advanced model of our well proven direct-drive wind turbine of the D7 platform will leverage the energy output of the Rentel offshore wind power plant and contribute to lowering the cost of electricity."