Abstract
One focus of planning support systems (PSS) development to overcome the implementation gap has been on improving their usefulness. Various case studies reveal they are becoming increasingly useful when designed as interactive PSS implemented on a maptable. Studies using these interactive PSS have been undertaken merely involving planning practitioners; what is lacking are studies looking at whether these PSS also allow the wider or more intense participation of laypersons, that is, ordinary citizens, such as those affected by the planning. This chapter discusses possibilities and added values as well as challenges and limitations of using interactive PSS with citizens in the context of energy transition in the Netherlands.