Trucks account for one-fifth of transport sector emissions in Europe. To decarbonise, heavy-duty road freight must switch to zero-emission vehicles quickly. This report examines whether battery electric vehicles, electric road systems and hydrogen fuel cell vehicles could compete with diesel-driven vehicles. It looks at the total cost of ownership across nine different vehicle-size segments in Europe. The report gives six recommendations to accelerate the transition to zero-emission trucks, including the provision of necessary infrastructure.