A reliable current simulation is vital to achieve the objectives of model testing. In the present paper the development and testing of the current generation in an Offshore Basin is presented. First the objectives of such a development are discussed. Then the actual system as developed is described in detail. Finally the results of current measurements in the basin are presented. It is concluded that with a dedicated current modeling system in a model basin, it is possible to achieve a constant current over the measurement area with low variations in time and space.