Climate change is an unprecedented challenge facing humanity today, one that requires a quick and concerted response. With this context in mind, a rapid scale up in the deployment of renewable or sustainable energy sources is essential in order to reduce the emissions responsible for global warming. In this paper, Gary Hufbauer and Jisun Kim examine the conditions necessary for achieving a credible, low cost alternative to fossil fuel-based energy, placing an emphasis on how trade policy can be used to spur development in the sector, and the key issues that need to be addressed in order to accomplish a sustainable energy trade agreement (SETA). This publication is a joint effort by ICTSD, the Global Green Growth Institute (GGI) and the Peterson Institute for International Economics (PIIE).