The paper compares hard driven GTOs (IGCTs) and high power IGBT modules in a two level PWM inverter. The structure, fundamental operation, and specific characteristics of the considered devices are shown. Simulations enable a loss comparison of IGCTs and IGBTs in a 1.14MVA inverter at switching frequencies of f(s)=250Hz/500Hz, The evaluation of device characteristics is the basis for a derivation of potential applications.