Information needs and the effect of information on the social acceptance of innovative solar fuels

This study examines public information needs and the role of information and perceived knowledge in shaping the acceptance of solar fuels produced through artificial photosynthesis. Using a mixed-method approach that includes qualitative interviews and a quasi-experimental online survey, we identify specific information needs and assess the influence of information on solar fuel acceptance using structural equation modeling. Our findings reveal that richer informational content significantly enhances perceived knowledge. In turn, this fosters more positive affective and cognitive evaluations. Although information shows no direct effect on societal perceptions and acceptance, its significant indirect effect through perceived knowledge on perceptions and acceptance underscores its importance. Our findings contribute to an understanding of which information is prioritized regarding solar fuels by the public and how feelings of knowledgeability enhance positive perceptions. These insights provide clear recommendations for tailored communication strategies for solar fuels and related sustainable innovations. • The ecological footprint is rated the most important information for solar fuels. • Richer informational content significantly enhances perceived knowledge. • Higher perceived knowledge leads to more positive attitudes toward solar fuels. • The effect of information provision on solar fuel acceptance is indirect/mediated.