Business start-up activities should be a catalyst for innovation and employment within the energy transition. The GWS together with the Renewable Energy Agency on behalf of the Hessen Agentur investigate on how the start-up activities in the energy sector have developed. Special focus is on the fields of climate protection and electric mobility in recent years. The purpose is to capture trends in the state of Hesse and to understand specific challenges and barriers to business start-ups in these particular business fields. To achieve this quantitative analysis is performed and interviews are conducted with institutions and start-ups.