A circular economy roadmap for solar photovoltaics

Abstract

Solar photovoltaics (PV) and other clean energy technologies are increasingly being deployed as an environmentally responsible and economic approach to energy system decarbonization. The shift from fossil fuel-centric to material-centric equipment has also shifted the consideration and management of environmental and societal impacts across the technology life cycle. Societal desire to reduce raw material needs, mitigate supply chain social and governance challenges, and take advantage of the reuse and recycling capabilities of materials has enhanced interest in regenerative economic models, called circular economies (CEs). A recent critical review documented that solar PV is on a “path towards increased circularity,” but the need remains to expand activities beyond recycling to a broader set of environmental and policy activities to fully realize the benefits [1,2]. Thus, the goal of this research roadmap is to facilitate and accelerate the transition to a solar PV CE by 1) highlighting current opportunities for PV value chain stakeholders to adopt circular strategies and 2) assessing research and development (R&D) needs that can be addressed in the short term to advance a CE for the solar industry.