The Swedish freight sector is under transition towards fossil fuel-free vehicles. Introduction of electrified vehicles is currently seen as a major contributor to achieve this; however, the necessary transition is characterized by much uncertainty for many actors, much of which is stemming from knowledge gaps. In this study we explore knowledge gaps amongst different key actors important for this transition. Taking a qualitative approach, the main empirical material consists of about 80 semi-structured interviews and 2 workshops with representatives of the following groups of actors: transport companies, shippers, vehicle manufacturers, energy sector, property owners (terminals and warehousing), upcoming and emergent actors, and public authorities.