The future JET programme, after the installation of the ITER-like wall, will be mainly focused on the consolidation of the physics basis of the three main ITER scenarios. These scenarios will make substantial use of Electron Cyclotron (EC) waves, for heating as well as for control of both the MHD activity and the current density profile. Therefore, a programme for preparation, validation and optimization of the ITER scenarios in present tokamaks would strongly benefit from an ECRH/ECCD system. A study has been conducted to evaluate the feasibility of installing an ECRH system on the JET tokamak. An important intention of the study was to investigate the feasibility to utilise some unused conventional NBI ­ power supplies for the ECRH project.