Material constraints may slow the pace of energy transition if the materials intensity of renewable energy technologies remains the same. Innovations in solar photovoltaics (PV) can contribute to achieving lower material demands. In this research, the actor-centered institutionalism framework, transitions literature and the science-policy interface framework are used to analyze how the involved actors perceive the transition towards more resource-efficiency in solar PV, what their preferences are, and how government should support this transition. Altogether, resource-efficiency is not sufficiently supported, while it is considered extremely important in the future of solar PV according to various involved actors. Traditional silicon-based solar panels are locked-in into the current policy landscape. Actors prioritizing resource-efficiency interact in a niche space, while actors involved in traditional silicon-based PV form the regime. Improved alignment between science and policy actors would help ease disagreements and prevent or benefit from path-dependency, thus, supporting resource-efficiency in solar PV.