Abstract
There has been a recent shift from the usage of fossil fuels to renewable energy due to increased awareness of environmental quality. Although governments have taken various actions to promote the usage of renewable energy, consumer behaviour is also important. This study reviews the literature on the factors that influence renewable energy adoption among consumers. We use the PRISMA protocol for systematic reviews to select the relevant articles about consumers’ renewable energy consumption over the period from 2000 to 2020. The findings and discussion consist of (1) the profile of the studies, such as publication outlets, authorship, and publication trends; (2) theories on renewable energy adoption; and (3) factors influencing consumer adoption of renewable energy. Most importantly, based on our findings, we propose a framework of very important factors (willingness to pay, price or cost, knowledge, and government policies), moderately important factors (public awareness), and less important factors (perceived benefits and social influence). This study also provides key implications for researchers, suppliers, and policymakers. We also synthesize the findings with an analysis of different dimensions, identifying future research directions on renewable energy adoption, which include suggestions for examining political and regulatory factors, comparative studies between countries, and considering the suppliers’ perspective.