Gas- und Wärme-Institut Essen e.V. (GWI) is a non-profit and independent research organization that has been shaping the energy topics of the future in collaboration with its members, partners, and clients for many decades. With the energy transition, GWI has evolved into an energy institute that is open to all kinds of energy-related technologies and actively engaged in applied research and development projects at regional, national, and EU levels, as well as working closely with industrial partners. Through the close integration of all departments, GWI created extensive opportunities to support the transformation of the energy system at various levels, from energy supply and conversion to transmission and end-use.