HITEC (Helmholtz Interdisciplinary Doctoral Training in Energy and Climate) is a graduate school for scientists and engineers who want to earn a PhD in the challenging fields of energy and climate research, and is a joint initiative between Forschungszentrum Jülich, the RWTH Aachen University, the University of Bochum, the University of Cologne, the University of Düsseldorf, and the University of Wuppertal. HITEC offers a 3-year training programme that promotes scientific and professional qualifications. HITEC is committed to scientific excellence, an interdisciplinary and international research environment, an accepting learning environment that embraces diversity, and aims to train PhD students to become much-needed experts in academia and industry.