Open global trade has been an important factor in the rapid deployment of solar photovoltaic technologies around the world. The need to keep markets open and to develop harmonized product standards across the world is examined in a new joint report by the WTO and the International Renewable Energy Agency (IRENA). This study looks at how trade policies can support cost reductions, deployment of components and job creation in the solar photovoltaic sector. Keeping markets open is critically important to ensure that all countries can benefit from solar photovoltaic (PV) technologies, which constitute a pillar of the low-carbon, sustainable energy system needed to help achieve the goals of the Paris Agreement and to fulfil the United Nations' Sustainable Development Goals. This report looks at how further trade opening and development of the solar PV sector can strengthen the critical infrastructure needed to fight the COVID-19 pandemic and support efforts to rebuild the world economy. It examines the need for countries to develop a robust "quality infrastructure" to promote safe trade in solar PV goods and services. The report also looks at the need to strengthen international cooperation, particularly in product standards, and demonstrates how IRENA and the WTO can support efforts to promote a secure and inclusive global solar PV market.