In this report, we provide an update on the status of investment volumes in clean energy and an overview of the different technologies that will contribute significantly to a future low-carbon energy infrastructure, as well as the key enablers that are required in order to allow those technologies to get to scale. We also highlight developments in the carbon markets and global negotiations (in Copenhagen and beyond) which affect clean energy and greenhouse gas emissions as a whole. Finally, we provide an analytical framework to evaluate 35 different types of policy mechanisms designed to unleash private capital to facilitate the shift to a low-carbon economy.