The Haarlem Waarderpolder has traditionally been a functionally designed industrial area, and its closed architecture made it an anonymous city entrance. In recent years, the municipality and entrepreneurs have focused on making the area more open and accessible. The (manufacturing) industry and entrepreneurship become more visible and forms a connection with the city. This new context echoes in the design for the Haarlem Energy Hub, large facade openings make the knowledge and skills of the energy pioneers visible to the city.